"${CMAKE_BINARY_DIR}/src" #Stored in the binary dir
"${CMAKE_BINARY_DIR}/src/libcryptobox")
-LIST(APPEND CMAKE_REQUIRED_LIBRARIES m)
-
SET(POE_LOOP "Loop::IO_Poll")
SET(TAR "tar")
IF(WITH_LIBUTIL)
SET(HAVE_LIBUTIL_H 1)
LIST(APPEND RSPAMD_REQUIRED_LIBRARIES util)
- LIST(APPEND CMAKE_REQUIRED_LIBRARIES util)
CHECK_FUNCTION_EXISTS(pidfile_open HAVE_PIDFILE)
CHECK_FUNCTION_EXISTS(pidfile_fileno HAVE_PIDFILE_FILENO)
ENDIF()
ENDIF(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
# Now find libraries and headers
-
+LIST(APPEND RSPAMD_REQUIRED_LIBRARIES "m")
IF(ENABLE_LUAJIT MATCHES "ON")
#ProcessPackage(LUAJIT luajit)
SET(WITH_LUA 1)
CHECK_SYMBOL_EXISTS(SA_SIGINFO "signal.h" HAVE_SA_SIGINFO)
ENDIF(HAVE_SIGINFO_H)
-# Some hack for libevent 2.0
-CHECK_C_SOURCE_COMPILES ("#include <event.h>
- #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000000
- #error Unsupported
- #endif
- int main() { return 0;}" HAVE_LIBEVENT2)
-CHECK_C_SOURCE_COMPILES ("#include <event2/event.h>
- int main() { return EVENT_BASE_FLAG_NO_CACHE_TIME; }"
- HAVE_EVENT_NO_CACHE_TIME_FLAG)
-LIST(APPEND CMAKE_REQUIRED_LIBRARIES "event")
-CHECK_SYMBOL_EXISTS(event_base_update_cache_time "sys/types.h;event.h"
- HAVE_EVENT_NO_CACHE_TIME_FUNC)
-
IF(NOT CMAKE_SYSTEM_NAME STREQUAL "SunOS")
IF(HAVE_CLOCK_GETTIME)
CHECK_SYMBOL_EXISTS(CLOCK_PROCESS_CPUTIME_ID time.h HAVE_CLOCK_PROCESS_CPUTIME_ID)
ADD_SUBDIRECTORY(contrib/lua-lpeg)
ADD_SUBDIRECTORY(contrib/linenoise)
ADD_SUBDIRECTORY(contrib/t1ha)
+ADD_SUBDIRECTORY(contrib/libev)
IF (ENABLE_SNOWBALL MATCHES "ON")
LIST(APPEND RSPAMD_REQUIRED_LIBRARIES stemmer)
--- /dev/null
+SET(LIBEVSRC ev.c)
+
+CHECK_INCLUDE_FILES(sys/types.h HAVE_SYS_TYPES_H)
+CHECK_INCLUDE_FILES(sys/inotify.h HAVE_SYS_INOTIFY_H)
+CHECK_INCLUDE_FILES(sys/epoll.h HAVE_SYS_EPOLL_H)
+CHECK_INCLUDE_FILES(sys/event.h HAVE_SYS_EVENT_H)
+CHECK_INCLUDE_FILES(sys/queue.h HAVE_SYS_QUEUE_H)
+CHECK_INCLUDE_FILES(sys/stat.h HAVE_SYS_STAT_H)
+CHECK_INCLUDE_FILES(sys/signalfd.h HAVE_SYS_SIGNALFD_H)
+CHECK_INCLUDE_FILES(port.h HAVE_PORT_H)
+CHECK_INCLUDE_FILES(poll.h HAVE_POLL_H)
+CHECK_INCLUDE_FILES(sys/select.h HAVE_SYS_SELECT_H)
+CHECK_INCLUDE_FILES(sys/eventfd.h HAVE_SYS_EVENTFD_H)
+
+IF(HAVE_SYS_INOTIFY_H)
+ CHECK_SYMBOL_EXISTS(inotify_init "sys/types.h;sys/inotify.h" HAVE_INOTIFY_INIT)
+ENDIF()
+IF(HAVE_SYS_EPOLL_H)
+ CHECK_SYMBOL_EXISTS(epoll_ctl "sys/types.h;sys/epoll.h" HAVE_EPOLL_CTL)
+ENDIF()
+IF(HAVE_SYS_EVENT_H)
+ CHECK_SYMBOL_EXISTS(kqueue "sys/types.h;sys/event.h;sys/time.h" HAVE_KQUEUE)
+ENDIF()
+IF(HAVE_PORT_H)
+ CHECK_SYMBOL_EXISTS(port_create port.h HAVE_PORT_CREATE)
+ENDIF()
+IF(HAVE_POLL_H)
+ CHECK_SYMBOL_EXISTS(poll poll.h HAVE_POLL)
+ENDIF()
+IF(HAVE_SYS_SELECT_H)
+ CHECK_SYMBOL_EXISTS(select sys/select.h HAVE_SELECT)
+ENDIF()
+IF(HAVE_SYS_EVENTFD_H)
+ CHECK_SYMBOL_EXISTS(eventfd sys/eventfd.h HAVE_EVENTFD)
+ENDIF()
+IF(HAVE_SYS_SIGNALFD_H)
+ CHECK_SYMBOL_EXISTS(signalfd sys/signalfd.h HAVE_EVENTFD)
+ENDIF()
+
+CHECK_SYMBOL_EXISTS(time.h nanosleep HAVE_NANOSLEEP)
+
+# check first without rt
+CHECK_FUNCTION_EXISTS(clock_gettime HAVE_CLOCK_GETTIME)
+
+CHECK_LIBRARY_EXISTS(rt clock_gettime "" HAVE_LIBRT)
+# then check with rt
+CHECK_LIBRARY_EXISTS(rt clock_gettime "" HAVE_CLOCK_GETTIME)
+CHECK_LIBRARY_EXISTS(m ceil "" HAVE_LIBM)
+
+IF(ENABLE_FULL_DEBUG MATCHES "OFF")
+if ("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
+ SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
+endif ()
+ENDIF()
+
+CONFIGURE_FILE(config.h.in libev-config.h)
+
+ADD_LIBRARY(rspamd-libev STATIC ${LIBEVSRC})
+ADD_DEFINITIONS("-DEV_CONFIG_H=\"${CMAKE_CURRENT_BINARY_DIR}/libev-config.h\""
+ -DEV_MULTIPLICITY=1
+ -DEV_USE_FLOOR=1
+ -DEV_USE_MONOTONIC=1
+ -DEV_NO_THREADS=1 # We do not have threads in Rspamd!
+ -DEV_FEATURES=127 # Enable all features
+ )
+IF(HAVE_EVENTFD)
+ ADD_DEFINITIONS(-DEV_USE_EVENTFD=1)
+ENDIF()
\ No newline at end of file
--- /dev/null
+Revision history for libev, a high-performance and full-featured event loop.
+
+4.25 Fri Dec 21 07:49:20 CET 2018
+ - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT
+ (EV_THROW sitll provided) and now uses noexcept on C++11 or newer.
+ - move the darwin select workaround highe rin ev.c, as newer versions of
+ darwin managed to break their broken select even more.
+ - ANDROID => __ANDROID__ (reported by enh@google.com).
+ - disable epoll_create1 on android because it has broken header files
+ and google is unwilling to fix them (reported by enh@google.com).
+ - avoid a minor compilation warning on win32.
+ - c++: remove deprecated dynamic throw() specifications.
+ - c++: improve the (unsupported) bad_loop exception class.
+ - backport perl ev_periodic example to C, untested.
+ - update libecb, biggets change is to include a memory fence
+ in ECB_MEMORY_FENCE_RELEASE on x86/amd64.
+ - minor autoconf/automake modernisation.
+
+4.24 Wed Dec 28 05:19:55 CET 2016
+ - bump version to 4.24, as the release tarball inexplicably
+ didn't have the right version in ev.h, even though the cvs-tagged
+ version did have the right one (reported by Ales Teska).
+
+4.23 Wed Nov 16 18:23:41 CET 2016
+ - move some declarations at the beginning to help certain retarded
+ microsoft compilers, even though their documentation claims
+ otherwise (reported by Ruslan Osmanov).
+
+4.22 Sun Dec 20 22:11:50 CET 2015
+ - when epoll detects unremovable fds in the fd set, rebuild
+ only the epoll descriptor, not the signal pipe, to avoid
+ SIGPIPE in ev_async_send. This doesn't solve it on fork,
+ so document what needs to be done in ev_loop_fork
+ (analyzed by Benjamin Mahler).
+ - remove superfluous sys/timeb.h include on win32
+ (analyzed by Jason Madden).
+ - updated libecb.
+
+4.20 Sat Jun 20 13:01:43 CEST 2015
+ - prefer noexcept over throw () with C++ 11.
+ - update ecb.h due to incompatibilities with c11.
+ - fix a potential aliasing issue when reading and writing
+ watcher callbacks.
+
+4.19 Thu Sep 25 08:18:25 CEST 2014
+ - ev.h wasn't valid C++ anymore, which tripped compilers other than
+ clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately,
+ C++ doesn't support typedefs for function pointers fully, so the affected
+ declarations have to spell out the types each time.
+ - when not using autoconf, tighten the check for clock_gettime and related
+ functionality.
+
+4.18 Fri Sep 5 17:55:26 CEST 2014
+ - events on files were not always generated properly with the
+ epoll backend (testcase by Assaf Inbal).
+ - mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
+ - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
+ - use a reasonable fallback for EV_NSIG instead of erroring out
+ when we can't detect the signal set size.
+ - in the absence of autoconf, do not use the clock syscall
+ on glibc >= 2.17 (avoids the syscall AND -lrt on systems
+ doing clock_gettime in userspace).
+ - ensure extern "C" function pointers are used for externally-visible
+ loop callbacks (not watcher callbacks yet).
+ - (ecb) work around memory barriers and volatile apparently both being
+ broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
+
+4.15 Fri Mar 1 12:04:50 CET 2013
+ - destroying a non-default loop would stop the global waitpid
+ watcher (Denis Bilenko).
+ - queueing pending watchers of higher priority from a watcher now invokes
+ them in a timely fashion (reported by Denis Bilenko).
+ - add throw() to all libev functions that cannot throw exceptions, for
+ further code size decrease when compiling for C++.
+ - add throw () to callbacks that must not throw exceptions (allocator,
+ syserr, loop acquire/release, periodic reschedule cbs).
+ - fix event_base_loop return code, add event_get_callback, event_base_new,
+ event_base_get_method calls to improve libevent 1.x emulation and add
+ some libevent 2.x functionality (based on a patch by Jeff Davey).
+ - add more memory fences to fix a bug reported by Jeff Davey. Better
+ be overfenced than underprotected.
+ - ev_run now returns a boolean status (true meaning watchers are
+ still active).
+ - ev_once: undef EV_ERROR in ev_kqueue.c, to avoid clashing with
+ libev's EV_ERROR (reported by 191919).
+ - (ecb) add memory fence support for xlC (Darin McBride).
+ - (ecb) add memory fence support for gcc-mips (Anton Kirilov).
+ - (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
+ - work around some kernels losing file descriptors by leaking
+ the kqueue descriptor in the child.
+ - work around linux inotify not reporting IN_ATTRIB changes for directories
+ in many cases.
+ - include sys/syscall.h instead of plain syscall.h.
+ - check for io watcher loops in ev_verify, check for the most
+ common reported usage bug in ev_io_start.
+ - choose socket vs. WSASocket at compiletime using EV_USE_WSASOCKET.
+ - always use WSASend/WSARecv directly on windows, hoping that this
+ works in all cases (unlike read/write/send/recv...).
+ - try to detect signals around a fork faster (test program by
+ Denis Bilenko).
+ - work around recent glibc versions that leak memory in realloc.
+ - rename ev::embed::set to ev::embed::set_embed to avoid clashing
+ the watcher base set (loop) method.
+ - rewrite the async/signal pipe logic to always keep a valid fd, which
+ simplifies (and hopefully correctifies :) the race checking
+ on fork, at the cost of one extra fd.
+ - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
+ inotify-supporting filesystems.
+ - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
+ versions ignore it before
+ (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
+ - add some untested android support.
+ - enum expressions must be of type int (reported by Juan Pablo L).
+
+4.11 Sat Feb 4 19:52:39 CET 2012
+ - INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as
+ was documented already, but not implemented in the repeating case.
+ - new compiletime symbols: EV_NO_SMP and EV_NO_THREADS.
+ - fix a race where the workaround against the epoll fork bugs
+ caused signals to not be handled anymore.
+ - correct backend_fudge for most backends, and implement a windows
+ specific workaround to avoid looping because we call both
+ select and Sleep, both with different time resolutions.
+ - document range and guarantees of ev_sleep.
+ - document reasonable ranges for periodics interval and offset.
+ - rename backend_fudge to backend_mintime to avoid future confusion :)
+ - change the default periodic reschedule function to hopefully be more
+ exact and correct even in corner cases or in the far future.
+ - do not rely on -lm anymore: use it when available but use our
+ own floor () if it is missing. This should make it easier to embed,
+ as no external libraries are required.
+ - strategically import macros from libecb and mark rarely-used functions
+ as cache-cold (saving almost 2k code size on typical amd64 setups).
+ - add Symbols.ev and Symbols.event files, that were missing.
+ - fix backend_mintime value for epoll (was 1/1024, is 1/1000 now).
+ - fix #3 "be smart about timeouts" to not "deadlock" when
+ timeout == now, also improve the section overall.
+ - avoid "AVOIDING FINISHING BEFORE RETURNING" idiom.
+ - support new EV_API_STATIC mode to make all libev symbols
+ static.
+ - supply default CFLAGS of -g -O3 with gcc when original CFLAGS
+ were empty.
+
+4.04 Wed Feb 16 09:01:51 CET 2011
+ - fix two problems in the native win32 backend, where reuse of fd's
+ with different underlying handles caused handles not to be removed
+ or added to the select set (analyzed and tested by Bert Belder).
+ - do no rely on ceil() in ev_e?poll.c.
+ - backport libev to HP-UX versions before 11 v3.
+ - configure did not detect nanosleep and clock_gettime properly when
+ they are available in the libc (as opposed to -lrt).
+
+4.03 Tue Jan 11 14:37:25 CET 2011
+ - officially support polling files with all backends.
+ - support files, /dev/zero etc. the same way as select in the epoll
+ backend, by generating events on our own.
+ - ports backend: work around solaris bug 6874410 and many related ones
+ (EINTR, maybe more), with no performance loss (note that the solaris
+ bug report is actually wrong, reality is far more bizarre and broken
+ than that).
+ - define EV_READ/EV_WRITE as macros in event.h, as some programs use
+ #ifdef to test for them.
+ - new (experimental) function: ev_feed_signal.
+ - new (to become default) EVFLAG_NOSIGMASK flag.
+ - new EVBACKEND_MASK symbol.
+ - updated COMMON IDIOMS SECTION.
+
+4.01 Fri Nov 5 21:51:29 CET 2010
+ - automake fucked it up, apparently, --add-missing -f is not quite enough
+ to make it update its files, so 4.00 didn't install ev++.h and
+ event.h on make install. grrr.
+ - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
+ - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
+ - use "(libev) " prefix for all libev error messages now.
+
+4.00 Mon Oct 25 12:32:12 CEST 2010
+ - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
+ - ev_embed_stop did not correctly stop the watcher (very good
+ testcase by Vladimir Timofeev).
+ - ev_run will now always update the current loop time - it erroneously
+ didn't when idle watchers were active, causing timers not to fire.
+ - fix a bug where a timeout of zero caused the timer not to fire
+ in the libevent emulation (testcase by Péter Szabó).
+ - applied win32 fixes by Michael Lenaghan (also James Mansion).
+ - replace EV_MINIMAL by EV_FEATURES.
+ - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
+ seems the former is *much* faster than the latter.
+ - linux kernel version detection (for inotify bug workarounds)
+ did not work properly.
+ - reduce the number of spurious wake-ups with the ports backend.
+ - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
+ - do async init within ev_async_start, not ev_async_set, which avoids
+ an API quirk where the set function must be called in the C++ API
+ even when there is nothing to set.
+ - add (undocumented) EV_ENABLE when adding events with kqueue,
+ this might help with OS X, which seems to need it despite documenting
+ not to need it (helpfully pointed out by Tilghman Lesher).
+ - do not use poll by default on freebsd, it's broken (what isn't
+ on freebsd...).
+ - allow to embed epoll on kernels >= 2.6.32.
+ - configure now prepends -O3, not appends it, so one can still
+ override it.
+ - ev.pod: greatly expanded the portability section, added a porting
+ section, a description of watcher states and made lots of minor fixes.
+ - disable poll backend on AIX, the poll header spams the namespace
+ and it's not worth working around dead platforms (reported
+ and analyzed by Aivars Kalvans).
+ - improve header file compatibility of the standalone eventfd code
+ in an obscure case.
+ - implement EV_AVOID_STDIO option.
+ - do not use sscanf to parse linux version number (smaller, faster,
+ no sscanf dependency).
+ - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
+ - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
+ - add section on accept() problems to the manpage.
+ - rename EV_TIMEOUT to EV_TIMER.
+ - rename ev_loop_count/depth/verify/loop/unloop.
+ - remove ev_default_destroy and ev_default_fork.
+ - switch to two-digit minor version.
+ - work around an apparent gentoo compiler bug.
+ - define _DARWIN_UNLIMITED_SELECT. just so.
+ - use enum instead of #define for most constants.
+ - improve compatibility to older C++ compilers.
+ - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
+ default arguments when compiled as C++.
+ - enable automake dependency tracking.
+ - ev_loop_new no longer leaks memory when loop creation failed.
+ - new ev_cleanup watcher type.
+
+3.9 Thu Dec 31 07:59:59 CET 2009
+ - signalfd is no longer used by default and has to be requested
+ explicitly - this means that easy to catch bugs become hard to
+ catch race conditions, but the users have spoken.
+ - point out the unspecified signal mask in the documentation, and
+ that this is a race condition regardless of EV_SIGNALFD.
+ - backport inotify code to C89.
+ - inotify file descriptors could leak into child processes.
+ - ev_stat watchers could keep an erroneous extra ref on the loop,
+ preventing exit when unregistering all watchers (testcases
+ provided by ry@tinyclouds.org).
+ - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
+ symbols to make it easier for apps to do their own fd management.
+ - support EV_IDLE_ENABLE being disabled in ev++.h
+ (patch by Didier Spezia).
+ - take advantage of inotify_init1, if available, to set cloexec/nonblock
+ on fd creation, to avoid races.
+ - the signal handling pipe wasn't always initialised under windows
+ (analysed by lekma).
+ - changed minimum glibc requirement from glibc 2.9 to 2.7, for
+ signalfd.
+ - add missing string.h include (Denis F. Latypoff).
+ - only replace ev_stat.prev when we detect an actual difference,
+ so prev is (almost) always different to attr. this might
+ have caused the problems with 04_stat.t.
+ - add ev::timer->remaining () method to C++ API.
+
+3.8 Sun Aug 9 14:30:45 CEST 2009
+ - incompatible change: do not necessarily reset signal handler
+ to SIG_DFL when a sighandler is stopped.
+ - ev_default_destroy did not properly free or zero some members,
+ potentially causing crashes and memory corruption on repeated
+ ev_default_destroy/ev_default_loop calls.
+ - take advantage of signalfd on GNU/Linux systems.
+ - document that the signal mask might be in an unspecified
+ state when using libev's signal handling.
+ - take advantage of some GNU/Linux calls to set cloexec/nonblock
+ on fd creation, to avoid race conditions.
+
+3.7 Fri Jul 17 16:36:32 CEST 2009
+ - ev_unloop and ev_loop wrongly used a global variable to exit loops,
+ instead of using a per-loop variable (bug caught by accident...).
+ - the ev_set_io_collect_interval interpretation has changed.
+ - add new functionality: ev_set_userdata, ev_userdata,
+ ev_set_invoke_pending_cb, ev_set_loop_release_cb,
+ ev_invoke_pending, ev_pending_count, together with a long example
+ about thread locking.
+ - add ev_timer_remaining (as requested by Denis F. Latypoff).
+ - add ev_loop_depth.
+ - calling ev_unloop in fork/prepare watchers will no longer poll
+ for new events.
+ - Denis F. Latypoff corrected many typos in example code snippets.
+ - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
+ check that the syscall number is available before trying to
+ use it (reported by ry@tinyclouds).
+ - use GetSystemTimeAsFileTime instead of _timeb on windows, for
+ slightly higher accuracy.
+ - properly declare ev_loop_verify and ev_now_update even when
+ !EV_MULTIPLICITY.
+ - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
+ - support EV_MINIMAL==2 for a reduced API.
+ - actually 0-initialise struct sigaction when installing signals.
+ - add section on hibernate and stopped processes to ev_timer docs.
+
+3.6 Tue Apr 28 02:49:30 CEST 2009
+ - multiple timers becoming ready within an event loop iteration
+ will be invoked in the "correct" order now.
+ - do not leave the event loop early just because we have no active
+ watchers, fixing a problem when embedding a kqueue loop
+ that has active kernel events but no registered watchers
+ (reported by blacksand blacksand).
+ - correctly zero the idx values for arrays, so destroying and
+ reinitialising the default loop actually works (patch by
+ Malek Hadj-Ali).
+ - implement ev_suspend and ev_resume.
+ - new EV_CUSTOM revents flag for use by applications.
+ - add documentation section about priorities.
+ - add a glossary to the documentation.
+ - extend the ev_fork description slightly.
+ - optimize a jump out of call_pending.
+
+3.53 Sun Feb 15 02:38:20 CET 2009
+ - fix a bug in event pipe creation on win32 that would cause a
+ failed assertion on event loop creation (patch by Malek Hadj-Ali).
+ - probe for CLOCK_REALTIME support at runtime as well and fall
+ back to gettimeofday if there is an error, to support older
+ operating systems with newer header files/libraries.
+ - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
+ (default most everywhere), otherwise not.
+
+3.52 Wed Jan 7 21:43:02 CET 2009
+ - fix compilation of select backend in fd_set mode when NFDBITS is
+ missing (to get it to compile on QNX, reported by Rodrigo Campos).
+ - better select-nfds handling when select backend is in fd_set mode.
+ - diagnose fd_set overruns when select backend is in fd_set mode.
+ - due to a thinko, instead of disabling everything but
+ select on the borked OS X platform, everything but select was
+ allowed (reported by Emanuele Giaquinta).
+ - actually verify that local and remote port are matching in
+ libev's socketpair emulation, which makes denial-of-service
+ attacks harder (but not impossible - it's windows). Make sure
+ it even works under vista, which thinks that getpeer/sockname
+ should return fantasy port numbers.
+ - include "libev" in all assertion messages for potentially
+ clearer diagnostics.
+ - event_get_version (libevent compatibility) returned
+ a useless string instead of the expected version string
+ (patch by W.C.A. Wijngaards).
+
+3.51 Wed Dec 24 23:00:11 CET 2008
+ - fix a bug where an inotify watcher was added twice, causing
+ freezes on hash collisions (reported and analysed by Graham Leggett).
+ - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
+ a direct syscall - slower, but no dependency on librt et al.
+ - assume negative return values != -1 signals success of port_getn
+ (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
+ (no known failure reports, but it doesn't hurt).
+ - fork detection in ev_embed now stops and restarts the watcher
+ automatically.
+ - EXPERIMENTAL: default the method to operator () in ev++.h,
+ to make it nicer to use functors (requested by Benedek László).
+ - fixed const object callbacks in ev++.h.
+ - replaced loop_ref argument of watcher.set (loop) by a direct
+ ev_loop * in ev++.h, to avoid clashes with functor patch.
+ - do not try to watch the empty string via inotify.
+ - inotify watchers could be leaked under certain circumstances.
+ - OS X 10.5 is actually even more broken than earlier versions,
+ so fall back to select on that piece of garbage.
+ - fixed some weirdness in the ev_embed documentation.
+
+3.49 Wed Nov 19 11:26:53 CET 2008
+ - ev_stat watchers will now use inotify as a mere hint on
+ kernels <2.6.25, or if the filesystem is not in the
+ "known to be good" list.
+ - better mingw32 compatibility (it's not as borked as native win32)
+ (analysed by Roger Pack).
+ - include stdio.h in the example program, as too many people are
+ confused by the weird C language otherwise. I guess the next thing
+ I get told is that the "..." ellipses in the examples don't compile
+ with their C compiler.
+
+3.48 Thu Oct 30 09:02:37 CET 2008
+ - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
+ backend by assuming the kernel event mask hasn't changed if
+ ADD fails with EEXIST.
+ - work around spurious event notification bugs in epoll by using
+ a 32-bit generation counter. recreate kernel state if we receive
+ spurious notifications or unwanted events. this is very costly,
+ but I didn't come up with this horrible design.
+ - use memset to initialise most arrays now and do away with the
+ init functions.
+ - expand time-out strategies into a "Be smart about timeouts" section.
+ - drop the "struct" from all ev_watcher declarations in the
+ documentation and did other clarifications (yeah, it was a mistake
+ to have a struct AND a function called ev_loop).
+ - fix a bug where ev_default would not initialise the default
+ loop again after it was destroyed with ev_default_destroy.
+ - rename syserr to ev_syserr to avoid name clashes when embedding,
+ do similar changes for event.c.
+
+3.45 Tue Oct 21 21:59:26 CEST 2008
+ - disable inotify usage on linux <2.6.25, as it is broken
+ (reported by Yoann Vandoorselaere).
+ - ev_stat erroneously would try to add inotify watchers
+ even when inotify wasn't available (this should only
+ have a performance impact).
+ - ev_once now passes both timeout and io to the callback if both
+ occur concurrently, instead of giving timeouts precedence.
+ - disable EV_USE_INOTIFY when sys/inotify.h is too old.
+
+3.44 Mon Sep 29 05:18:39 CEST 2008
+ - embed watchers now automatically invoke ev_loop_fork on the
+ embedded loop when the parent loop forks.
+ - new function: ev_now_update (loop).
+ - verify_watcher was not marked static.
+ - improve the "associating..." manpage section.
+ - documentation tweaks here and there.
+
+3.43 Sun Jul 6 05:34:41 CEST 2008
+ - include more include files on windows to get struct _stati64
+ (reported by Chris Hulbert, but doesn't quite fix his issue).
+ - add missing #include <io.h> in ev.c on windows (reported by
+ Matt Tolton).
+
+3.42 Tue Jun 17 12:12:07 CEST 2008
+ - work around yet another windows bug: FD_SET actually adds fd's
+ multiple times to the fd_*SET*, despite official MSN docs claiming
+ otherwise. Reported and well-analysed by Matt Tolton.
+ - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
+ (reported any analysed by Chris Hulbert).
+ - fix a bug in ev_ebadf (this function is only used to catch
+ programming errors in the libev user). reported by Matt Tolton.
+ - fix a bug in fd_intern on win32 (could lead to compile errors
+ under some circumstances, but would work correctly if it compiles).
+ reported by Matt Tolton.
+ - (try to) work around missing lstat on windows.
+ - pass in the write fd set as except fd set under windows. windows
+ is so uncontrollably lame that it requires this. this means that
+ switching off oobinline is not supported (but tcp/ip doesn't
+ have oob, so that would be stupid anyways.
+ - use posix module symbol to auto-detect monotonic clock presence
+ and some other default values.
+
+3.41 Fri May 23 18:42:54 CEST 2008
+ - work around an obscure bug in winsocket select: if you
+ provide only empty fd sets then select returns WSAEINVAL. how sucky.
+ - improve timer scheduling stability and reduce use of time_epsilon.
+ - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
+ codesize and makes for better cache-efficiency.
+ - use 3-based 4-heap for !EV_MINIMAL. this makes better use
+ of cpu cache lines and gives better growth behaviour than
+ 2-based heaps.
+ - cache timestamp within heap for !EV_MINIMAL, to avoid random
+ memory accesses.
+ - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
+ - fix a potential aliasing issue in ev_timer_again.
+ - add/document ev_periodic_at, retract direct access to ->at.
+ - improve ev_stat docs.
+ - add portability requirements section.
+ - fix manpage headers etc.
+ - normalise WSA error codes to lower range on windows.
+ - add consistency check code that can be called automatically
+ or on demand to check for internal structures (ev_loop_verify).
+
+3.31 Wed Apr 16 20:45:04 CEST 2008
+ - added last minute fix for ev_poll.c by Brandon Black.
+
+3.3 Wed Apr 16 19:04:10 CEST 2008
+ - event_base_loopexit should return 0 on success
+ (W.C.A. Wijngaards).
+ - added linux eventfd support.
+ - try to autodetect epoll and inotify support
+ by libc header version if not using autoconf.
+ - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
+ - declare functions defined in ev.h as inline if
+ C99 or gcc are available.
+ - enable inlining with gcc versions 2 and 3.
+ - work around broken poll implementations potentially
+ not clearing revents field in ev_poll (Brandon Black)
+ (no such systems are known at this time).
+ - work around a bug in realloc on openbsd and darwin,
+ also makes the erroneous valgrind complaints
+ go away (noted by various people).
+ - fix ev_async_pending, add c++ wrapper for ev_async
+ (based on patch sent by Johannes Deisenhofer).
+ - add sensible set method to ev::embed.
+ - made integer constants type int in ev.h.
+
+3.2 Wed Apr 2 17:11:19 CEST 2008
+ - fix a 64 bit overflow issue in the select backend,
+ by using fd_mask instead of int for the mask.
+ - rename internal sighandler to avoid clash with very old perls.
+ - entering ev_loop will not clear the ONESHOT or NONBLOCKING
+ flags of any outer loops anymore.
+ - add ev_async_pending.
+
+3.1 Thu Mar 13 13:45:22 CET 2008
+ - implement ev_async watchers.
+ - only initialise signal pipe on demand.
+ - make use of sig_atomic_t configurable.
+ - improved documentation.
+
+3.0 Mon Jan 28 13:14:47 CET 2008
+ - API/ABI bump to version 3.0.
+ - ev++.h includes "ev.h" by default now, not <ev.h>.
+ - slightly improved documentation.
+ - speed up signal detection after a fork.
+ - only optionally return trace status changed in ev_child
+ watchers.
+ - experimental (and undocumented) loop wrappers for ev++.h.
+
+2.01 Tue Dec 25 08:04:41 CET 2007
+ - separate Changes file.
+ - fix ev_path_set => ev_stat_set typo.
+ - remove event_compat.h from the libev tarball.
+ - change how include files are found.
+ - doc updates.
+ - update licenses, explicitly allow for GPL relicensing.
+
+2.0 Sat Dec 22 17:47:03 CET 2007
+ - new ev_sleep, ev_set_(io|timeout)_collect_interval.
+ - removed epoll from embeddable fd set.
+ - fix embed watchers.
+ - renamed ev_embed.loop to other.
+ - added exported Symbol tables.
+ - undefine member wrapper macros at the end of ev.c.
+ - respect EV_H in ev++.h.
+
+1.86 Tue Dec 18 02:36:57 CET 2007
+ - fix memleak on loop destroy (not relevant for perl).
+
+1.85 Fri Dec 14 20:32:40 CET 2007
+ - fix some aliasing issues w.r.t. timers and periodics
+ (not relevant for perl).
+
+(for historic versions refer to EV/Changes, found in the Perl interface)
+
+0.1 Wed Oct 31 21:31:48 CET 2007
+ - original version; hacked together in <24h.
+
--- /dev/null
+All files in libev are
+Copyright (c)2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Alternatively, the contents of this package may be used under the terms
+of the GNU General Public License ("GPL") version 2 or any later version,
+in which case the provisions of the GPL are applicable instead of the
+above. If you wish to allow the use of your version of this package only
+under the terms of the GPL and not to allow others to use your version of
+this file under the BSD license, indicate your decision by deleting the
+provisions above and replace them with the notice and other provisions
+required by the GPL in this and the other files of this package. If you do
+not delete the provisions above, a recipient may use your version of this
+file under either the BSD or the GPL.
--- /dev/null
+/* config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#cmakedefine HAVE_CLOCK_GETTIME 1
+
+/* Define to 1 to use the syscall interface for clock_gettime */
+#cmakedefine HAVE_CLOCK_SYSCALL 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#cmakedefine HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the `epoll_ctl' function. */
+#cmakedefine HAVE_EPOLL_CTL 1
+
+/* Define to 1 if you have the `eventfd' function. */
+#cmakedefine HAVE_EVENTFD 1
+
+/* Define to 1 if the floor function is available */
+#cmakedefine HAVE_FLOOR 1
+
+/* Define to 1 if you have the `inotify_init' function. */
+#cmakedefine HAVE_INOTIFY_INIT 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#cmakedefine HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `kqueue' function. */
+#cmakedefine HAVE_KQUEUE 1
+
+/* Define to 1 if you have the `rt' library (-lrt). */
+#cmakedefine HAVE_LIBRT 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#cmakedefine HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `nanosleep' function. */
+#cmakedefine HAVE_NANOSLEEP 1
+
+/* Define to 1 if you have the `poll' function. */
+#cmakedefine HAVE_POLL 1
+
+/* Define to 1 if you have the <poll.h> header file. */
+#cmakedefine HAVE_POLL_H 1
+
+/* Define to 1 if you have the `port_create' function. */
+#cmakedefine HAVE_PORT_CREATE 1
+
+/* Define to 1 if you have the <port.h> header file. */
+#cmakedefine HAVE_PORT_H 1
+
+/* Define to 1 if you have the `select' function. */
+#cmakedefine HAVE_SELECT 1
+
+/* Define to 1 if you have the `signalfd' function. */
+#cmakedefine HAVE_SIGNALFD 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#cmakedefine HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#cmakedefine HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#cmakedefine HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#cmakedefine HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/epoll.h> header file. */
+#cmakedefine HAVE_SYS_EPOLL_H 1
+
+/* Define to 1 if you have the <sys/eventfd.h> header file. */
+#cmakedefine HAVE_SYS_EVENTFD_H 1
+
+/* Define to 1 if you have the <sys/event.h> header file. */
+#cmakedefine HAVE_SYS_EVENT_H 1
+
+/* Define to 1 if you have the <sys/inotify.h> header file. */
+#cmakedefine HAVE_SYS_INOTIFY_H 1
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#cmakedefine HAVE_SYS_SELECT_H 1
+
+/* Define to 1 if you have the <sys/signalfd.h> header file. */
+#cmakedefine HAVE_SYS_SIGNALFD_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#cmakedefine HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#cmakedefine HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#cmakedefine HAVE_UNISTD_H 1
+
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION 4.25
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Version number of package */
+#undef VERSION
--- /dev/null
+/*
+ * libev simple C++ wrapper classes
+ *
+ * Copyright (c) 2007,2008,2010,2018 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#ifndef EVPP_H__
+#define EVPP_H__
+
+#ifdef EV_H
+# include EV_H
+#else
+# include "ev.h"
+#endif
+
+#ifndef EV_USE_STDEXCEPT
+# define EV_USE_STDEXCEPT 1
+#endif
+
+#if EV_USE_STDEXCEPT
+# include <stdexcept>
+#endif
+
+namespace ev {
+
+ typedef ev_tstamp tstamp;
+
+ enum {
+ UNDEF = EV_UNDEF,
+ NONE = EV_NONE,
+ READ = EV_READ,
+ WRITE = EV_WRITE,
+#if EV_COMPAT3
+ TIMEOUT = EV_TIMEOUT,
+#endif
+ TIMER = EV_TIMER,
+ PERIODIC = EV_PERIODIC,
+ SIGNAL = EV_SIGNAL,
+ CHILD = EV_CHILD,
+ STAT = EV_STAT,
+ IDLE = EV_IDLE,
+ CHECK = EV_CHECK,
+ PREPARE = EV_PREPARE,
+ FORK = EV_FORK,
+ ASYNC = EV_ASYNC,
+ EMBED = EV_EMBED,
+# undef ERROR // some systems stupidly #define ERROR
+ ERROR = EV_ERROR
+ };
+
+ enum
+ {
+ AUTO = EVFLAG_AUTO,
+ NOENV = EVFLAG_NOENV,
+ FORKCHECK = EVFLAG_FORKCHECK,
+
+ SELECT = EVBACKEND_SELECT,
+ POLL = EVBACKEND_POLL,
+ EPOLL = EVBACKEND_EPOLL,
+ KQUEUE = EVBACKEND_KQUEUE,
+ DEVPOLL = EVBACKEND_DEVPOLL,
+ PORT = EVBACKEND_PORT
+ };
+
+ enum
+ {
+#if EV_COMPAT3
+ NONBLOCK = EVLOOP_NONBLOCK,
+ ONESHOT = EVLOOP_ONESHOT,
+#endif
+ NOWAIT = EVRUN_NOWAIT,
+ ONCE = EVRUN_ONCE
+ };
+
+ enum how_t
+ {
+ ONE = EVBREAK_ONE,
+ ALL = EVBREAK_ALL
+ };
+
+ struct bad_loop
+#if EV_USE_STDEXCEPT
+ : std::exception
+#endif
+ {
+#if EV_USE_STDEXCEPT
+ const char *what () const EV_NOEXCEPT
+ {
+ return "libev event loop cannot be initialized, bad value of LIBEV_FLAGS?";
+ }
+#endif
+ };
+
+#ifdef EV_AX
+# undef EV_AX
+#endif
+
+#ifdef EV_AX_
+# undef EV_AX_
+#endif
+
+#if EV_MULTIPLICITY
+# define EV_AX raw_loop
+# define EV_AX_ raw_loop,
+#else
+# define EV_AX
+# define EV_AX_
+#endif
+
+ struct loop_ref
+ {
+ loop_ref (EV_P) EV_NOEXCEPT
+#if EV_MULTIPLICITY
+ : EV_AX (EV_A)
+#endif
+ {
+ }
+
+ bool operator == (const loop_ref &other) const EV_NOEXCEPT
+ {
+#if EV_MULTIPLICITY
+ return EV_AX == other.EV_AX;
+#else
+ return true;
+#endif
+ }
+
+ bool operator != (const loop_ref &other) const EV_NOEXCEPT
+ {
+#if EV_MULTIPLICITY
+ return ! (*this == other);
+#else
+ return false;
+#endif
+ }
+
+#if EV_MULTIPLICITY
+ bool operator == (const EV_P) const EV_NOEXCEPT
+ {
+ return this->EV_AX == EV_A;
+ }
+
+ bool operator != (const EV_P) const EV_NOEXCEPT
+ {
+ return ! (*this == EV_A);
+ }
+
+ operator struct ev_loop * () const EV_NOEXCEPT
+ {
+ return EV_AX;
+ }
+
+ operator const struct ev_loop * () const EV_NOEXCEPT
+ {
+ return EV_AX;
+ }
+
+ bool is_default () const EV_NOEXCEPT
+ {
+ return EV_AX == ev_default_loop (0);
+ }
+#endif
+
+#if EV_COMPAT3
+ void loop (int flags = 0)
+ {
+ ev_run (EV_AX_ flags);
+ }
+
+ void unloop (how_t how = ONE) EV_NOEXCEPT
+ {
+ ev_break (EV_AX_ how);
+ }
+#endif
+
+ void run (int flags = 0)
+ {
+ ev_run (EV_AX_ flags);
+ }
+
+ void break_loop (how_t how = ONE) EV_NOEXCEPT
+ {
+ ev_break (EV_AX_ how);
+ }
+
+ void post_fork () EV_NOEXCEPT
+ {
+ ev_loop_fork (EV_AX);
+ }
+
+ unsigned int backend () const EV_NOEXCEPT
+ {
+ return ev_backend (EV_AX);
+ }
+
+ tstamp now () const EV_NOEXCEPT
+ {
+ return ev_now (EV_AX);
+ }
+
+ void ref () EV_NOEXCEPT
+ {
+ ev_ref (EV_AX);
+ }
+
+ void unref () EV_NOEXCEPT
+ {
+ ev_unref (EV_AX);
+ }
+
+#if EV_FEATURE_API
+ unsigned int iteration () const EV_NOEXCEPT
+ {
+ return ev_iteration (EV_AX);
+ }
+
+ unsigned int depth () const EV_NOEXCEPT
+ {
+ return ev_depth (EV_AX);
+ }
+
+ void set_io_collect_interval (tstamp interval) EV_NOEXCEPT
+ {
+ ev_set_io_collect_interval (EV_AX_ interval);
+ }
+
+ void set_timeout_collect_interval (tstamp interval) EV_NOEXCEPT
+ {
+ ev_set_timeout_collect_interval (EV_AX_ interval);
+ }
+#endif
+
+ // function callback
+ void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) EV_NOEXCEPT
+ {
+ ev_once (EV_AX_ fd, events, timeout, cb, arg);
+ }
+
+ // method callback
+ template<class K, void (K::*method)(int)>
+ void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
+ {
+ once (fd, events, timeout, method_thunk<K, method>, object);
+ }
+
+ // default method == operator ()
+ template<class K>
+ void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
+ {
+ once (fd, events, timeout, method_thunk<K, &K::operator ()>, object);
+ }
+
+ template<class K, void (K::*method)(int)>
+ static void method_thunk (int revents, void *arg)
+ {
+ (static_cast<K *>(arg)->*method)
+ (revents);
+ }
+
+ // no-argument method callback
+ template<class K, void (K::*method)()>
+ void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
+ {
+ once (fd, events, timeout, method_noargs_thunk<K, method>, object);
+ }
+
+ template<class K, void (K::*method)()>
+ static void method_noargs_thunk (int revents, void *arg)
+ {
+ (static_cast<K *>(arg)->*method)
+ ();
+ }
+
+ // simpler function callback
+ template<void (*cb)(int)>
+ void once (int fd, int events, tstamp timeout) EV_NOEXCEPT
+ {
+ once (fd, events, timeout, simpler_func_thunk<cb>);
+ }
+
+ template<void (*cb)(int)>
+ static void simpler_func_thunk (int revents, void *arg)
+ {
+ (*cb)
+ (revents);
+ }
+
+ // simplest function callback
+ template<void (*cb)()>
+ void once (int fd, int events, tstamp timeout) EV_NOEXCEPT
+ {
+ once (fd, events, timeout, simplest_func_thunk<cb>);
+ }
+
+ template<void (*cb)()>
+ static void simplest_func_thunk (int revents, void *arg)
+ {
+ (*cb)
+ ();
+ }
+
+ void feed_fd_event (int fd, int revents) EV_NOEXCEPT
+ {
+ ev_feed_fd_event (EV_AX_ fd, revents);
+ }
+
+ void feed_signal_event (int signum) EV_NOEXCEPT
+ {
+ ev_feed_signal_event (EV_AX_ signum);
+ }
+
+#if EV_MULTIPLICITY
+ struct ev_loop* EV_AX;
+#endif
+
+ };
+
+#if EV_MULTIPLICITY
+ struct dynamic_loop : loop_ref
+ {
+
+ dynamic_loop (unsigned int flags = AUTO)
+ : loop_ref (ev_loop_new (flags))
+ {
+ if (!EV_AX)
+ throw bad_loop ();
+ }
+
+ ~dynamic_loop () EV_NOEXCEPT
+ {
+ ev_loop_destroy (EV_AX);
+ EV_AX = 0;
+ }
+
+ private:
+
+ dynamic_loop (const dynamic_loop &);
+
+ dynamic_loop & operator= (const dynamic_loop &);
+
+ };
+#endif
+
+ struct default_loop : loop_ref
+ {
+ default_loop (unsigned int flags = AUTO)
+#if EV_MULTIPLICITY
+ : loop_ref (ev_default_loop (flags))
+#endif
+ {
+ if (
+#if EV_MULTIPLICITY
+ !EV_AX
+#else
+ !ev_default_loop (flags)
+#endif
+ )
+ throw bad_loop ();
+ }
+
+ private:
+ default_loop (const default_loop &);
+ default_loop &operator = (const default_loop &);
+ };
+
+ inline loop_ref get_default_loop () EV_NOEXCEPT
+ {
+#if EV_MULTIPLICITY
+ return ev_default_loop (0);
+#else
+ return loop_ref ();
+#endif
+ }
+
+#undef EV_AX
+#undef EV_AX_
+
+#undef EV_PX
+#undef EV_PX_
+#if EV_MULTIPLICITY
+# define EV_PX loop_ref EV_A
+# define EV_PX_ loop_ref EV_A_
+#else
+# define EV_PX
+# define EV_PX_
+#endif
+
+ template<class ev_watcher, class watcher>
+ struct base : ev_watcher
+ {
+ #if EV_MULTIPLICITY
+ EV_PX;
+
+ // loop set
+ void set (EV_P) EV_NOEXCEPT
+ {
+ this->EV_A = EV_A;
+ }
+ #endif
+
+ base (EV_PX) EV_NOEXCEPT
+ #if EV_MULTIPLICITY
+ : EV_A (EV_A)
+ #endif
+ {
+ ev_init (this, 0);
+ }
+
+ void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) EV_NOEXCEPT
+ {
+ this->data = (void *)data;
+ ev_set_cb (static_cast<ev_watcher *>(this), cb);
+ }
+
+ // function callback
+ template<void (*function)(watcher &w, int)>
+ void set (void *data = 0) EV_NOEXCEPT
+ {
+ set_ (data, function_thunk<function>);
+ }
+
+ template<void (*function)(watcher &w, int)>
+ static void function_thunk (EV_P_ ev_watcher *w, int revents)
+ {
+ function
+ (*static_cast<watcher *>(w), revents);
+ }
+
+ // method callback
+ template<class K, void (K::*method)(watcher &w, int)>
+ void set (K *object) EV_NOEXCEPT
+ {
+ set_ (object, method_thunk<K, method>);
+ }
+
+ // default method == operator ()
+ template<class K>
+ void set (K *object) EV_NOEXCEPT
+ {
+ set_ (object, method_thunk<K, &K::operator ()>);
+ }
+
+ template<class K, void (K::*method)(watcher &w, int)>
+ static void method_thunk (EV_P_ ev_watcher *w, int revents)
+ {
+ (static_cast<K *>(w->data)->*method)
+ (*static_cast<watcher *>(w), revents);
+ }
+
+ // no-argument callback
+ template<class K, void (K::*method)()>
+ void set (K *object) EV_NOEXCEPT
+ {
+ set_ (object, method_noargs_thunk<K, method>);
+ }
+
+ template<class K, void (K::*method)()>
+ static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
+ {
+ (static_cast<K *>(w->data)->*method)
+ ();
+ }
+
+ void operator ()(int events = EV_UNDEF)
+ {
+ return
+ ev_cb (static_cast<ev_watcher *>(this))
+ (static_cast<ev_watcher *>(this), events);
+ }
+
+ bool is_active () const EV_NOEXCEPT
+ {
+ return ev_is_active (static_cast<const ev_watcher *>(this));
+ }
+
+ bool is_pending () const EV_NOEXCEPT
+ {
+ return ev_is_pending (static_cast<const ev_watcher *>(this));
+ }
+
+ void feed_event (int revents) EV_NOEXCEPT
+ {
+ ev_feed_event (EV_A_ static_cast<ev_watcher *>(this), revents);
+ }
+ };
+
+ inline tstamp now (EV_P) EV_NOEXCEPT
+ {
+ return ev_now (EV_A);
+ }
+
+ inline void delay (tstamp interval) EV_NOEXCEPT
+ {
+ ev_sleep (interval);
+ }
+
+ inline int version_major () EV_NOEXCEPT
+ {
+ return ev_version_major ();
+ }
+
+ inline int version_minor () EV_NOEXCEPT
+ {
+ return ev_version_minor ();
+ }
+
+ inline unsigned int supported_backends () EV_NOEXCEPT
+ {
+ return ev_supported_backends ();
+ }
+
+ inline unsigned int recommended_backends () EV_NOEXCEPT
+ {
+ return ev_recommended_backends ();
+ }
+
+ inline unsigned int embeddable_backends () EV_NOEXCEPT
+ {
+ return ev_embeddable_backends ();
+ }
+
+ inline void set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
+ {
+ ev_set_allocator (cb);
+ }
+
+ inline void set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
+ {
+ ev_set_syserr_cb (cb);
+ }
+
+ #if EV_MULTIPLICITY
+ #define EV_CONSTRUCT(cppstem,cstem) \
+ (EV_PX = get_default_loop ()) EV_NOEXCEPT \
+ : base<ev_ ## cstem, cppstem> (EV_A) \
+ { \
+ }
+ #else
+ #define EV_CONSTRUCT(cppstem,cstem) \
+ () EV_NOEXCEPT \
+ { \
+ }
+ #endif
+
+ /* using a template here would require quite a few more lines,
+ * so a macro solution was chosen */
+ #define EV_BEGIN_WATCHER(cppstem,cstem) \
+ \
+ struct cppstem : base<ev_ ## cstem, cppstem> \
+ { \
+ void start () EV_NOEXCEPT \
+ { \
+ ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
+ } \
+ \
+ void stop () EV_NOEXCEPT \
+ { \
+ ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
+ } \
+ \
+ cppstem EV_CONSTRUCT(cppstem,cstem) \
+ \
+ ~cppstem () EV_NOEXCEPT \
+ { \
+ stop (); \
+ } \
+ \
+ using base<ev_ ## cstem, cppstem>::set; \
+ \
+ private: \
+ \
+ cppstem (const cppstem &o); \
+ \
+ cppstem &operator =(const cppstem &o); \
+ \
+ public:
+
+ #define EV_END_WATCHER(cppstem,cstem) \
+ };
+
+ EV_BEGIN_WATCHER (io, io)
+ void set (int fd, int events) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_io_set (static_cast<ev_io *>(this), fd, events);
+ if (active) start ();
+ }
+
+ void set (int events) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_io_set (static_cast<ev_io *>(this), fd, events);
+ if (active) start ();
+ }
+
+ void start (int fd, int events) EV_NOEXCEPT
+ {
+ set (fd, events);
+ start ();
+ }
+ EV_END_WATCHER (io, io)
+
+ EV_BEGIN_WATCHER (timer, timer)
+ void set (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
+ if (active) start ();
+ }
+
+ void start (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT
+ {
+ set (after, repeat);
+ start ();
+ }
+
+ void again () EV_NOEXCEPT
+ {
+ ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
+ }
+
+ ev_tstamp remaining ()
+ {
+ return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this));
+ }
+ EV_END_WATCHER (timer, timer)
+
+ #if EV_PERIODIC_ENABLE
+ EV_BEGIN_WATCHER (periodic, periodic)
+ void set (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
+ if (active) start ();
+ }
+
+ void start (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT
+ {
+ set (at, interval);
+ start ();
+ }
+
+ void again () EV_NOEXCEPT
+ {
+ ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
+ }
+ EV_END_WATCHER (periodic, periodic)
+ #endif
+
+ #if EV_SIGNAL_ENABLE
+ EV_BEGIN_WATCHER (sig, signal)
+ void set (int signum) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_signal_set (static_cast<ev_signal *>(this), signum);
+ if (active) start ();
+ }
+
+ void start (int signum) EV_NOEXCEPT
+ {
+ set (signum);
+ start ();
+ }
+ EV_END_WATCHER (sig, signal)
+ #endif
+
+ #if EV_CHILD_ENABLE
+ EV_BEGIN_WATCHER (child, child)
+ void set (int pid, int trace = 0) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_child_set (static_cast<ev_child *>(this), pid, trace);
+ if (active) start ();
+ }
+
+ void start (int pid, int trace = 0) EV_NOEXCEPT
+ {
+ set (pid, trace);
+ start ();
+ }
+ EV_END_WATCHER (child, child)
+ #endif
+
+ #if EV_STAT_ENABLE
+ EV_BEGIN_WATCHER (stat, stat)
+ void set (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_stat_set (static_cast<ev_stat *>(this), path, interval);
+ if (active) start ();
+ }
+
+ void start (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT
+ {
+ stop ();
+ set (path, interval);
+ start ();
+ }
+
+ void update () EV_NOEXCEPT
+ {
+ ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
+ }
+ EV_END_WATCHER (stat, stat)
+ #endif
+
+ #if EV_IDLE_ENABLE
+ EV_BEGIN_WATCHER (idle, idle)
+ void set () EV_NOEXCEPT { }
+ EV_END_WATCHER (idle, idle)
+ #endif
+
+ #if EV_PREPARE_ENABLE
+ EV_BEGIN_WATCHER (prepare, prepare)
+ void set () EV_NOEXCEPT { }
+ EV_END_WATCHER (prepare, prepare)
+ #endif
+
+ #if EV_CHECK_ENABLE
+ EV_BEGIN_WATCHER (check, check)
+ void set () EV_NOEXCEPT { }
+ EV_END_WATCHER (check, check)
+ #endif
+
+ #if EV_EMBED_ENABLE
+ EV_BEGIN_WATCHER (embed, embed)
+ void set_embed (struct ev_loop *embedded_loop) EV_NOEXCEPT
+ {
+ int active = is_active ();
+ if (active) stop ();
+ ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
+ if (active) start ();
+ }
+
+ void start (struct ev_loop *embedded_loop) EV_NOEXCEPT
+ {
+ set (embedded_loop);
+ start ();
+ }
+
+ void sweep ()
+ {
+ ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
+ }
+ EV_END_WATCHER (embed, embed)
+ #endif
+
+ #if EV_FORK_ENABLE
+ EV_BEGIN_WATCHER (fork, fork)
+ void set () EV_NOEXCEPT { }
+ EV_END_WATCHER (fork, fork)
+ #endif
+
+ #if EV_ASYNC_ENABLE
+ EV_BEGIN_WATCHER (async, async)
+ void send () EV_NOEXCEPT
+ {
+ ev_async_send (EV_A_ static_cast<ev_async *>(this));
+ }
+
+ bool async_pending () EV_NOEXCEPT
+ {
+ return ev_async_pending (static_cast<ev_async *>(this));
+ }
+ EV_END_WATCHER (async, async)
+ #endif
+
+ #undef EV_PX
+ #undef EV_PX_
+ #undef EV_CONSTRUCT
+ #undef EV_BEGIN_WATCHER
+ #undef EV_END_WATCHER
+}
+
+#endif
+
--- /dev/null
+/*
+ * libev event processing core, watcher management
+ *
+ * Copyright (c) 2007-2018 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+/* this big block deduces configuration from config.h */
+#ifndef EV_STANDALONE
+# ifdef EV_CONFIG_H
+# include EV_CONFIG_H
+# else
+# include "config.h"
+# endif
+
+#ifdef __GNUC__
+#pragma GCC diagnostic ignored "-Wunused-value"
+#pragma GCC diagnostic ignored "-Wstrict-aliasing"
+#endif
+
+# if HAVE_FLOOR
+# ifndef EV_USE_FLOOR
+# define EV_USE_FLOOR 1
+# endif
+# endif
+
+# if HAVE_CLOCK_SYSCALL
+# ifndef EV_USE_CLOCK_SYSCALL
+# define EV_USE_CLOCK_SYSCALL 1
+# ifndef EV_USE_REALTIME
+# define EV_USE_REALTIME 0
+# endif
+# ifndef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 1
+# endif
+# endif
+# elif !defined EV_USE_CLOCK_SYSCALL
+# define EV_USE_CLOCK_SYSCALL 0
+# endif
+
+# if HAVE_CLOCK_GETTIME
+# ifndef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 1
+# endif
+# ifndef EV_USE_REALTIME
+# define EV_USE_REALTIME 0
+# endif
+# else
+# ifndef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 0
+# endif
+# ifndef EV_USE_REALTIME
+# define EV_USE_REALTIME 0
+# endif
+# endif
+
+# if HAVE_NANOSLEEP
+# ifndef EV_USE_NANOSLEEP
+# define EV_USE_NANOSLEEP EV_FEATURE_OS
+# endif
+# else
+# undef EV_USE_NANOSLEEP
+# define EV_USE_NANOSLEEP 0
+# endif
+
+# if HAVE_SELECT && HAVE_SYS_SELECT_H
+# ifndef EV_USE_SELECT
+# define EV_USE_SELECT EV_FEATURE_BACKENDS
+# endif
+# else
+# undef EV_USE_SELECT
+# define EV_USE_SELECT 0
+# endif
+
+# if HAVE_POLL && HAVE_POLL_H
+# ifndef EV_USE_POLL
+# define EV_USE_POLL EV_FEATURE_BACKENDS
+# endif
+# else
+# undef EV_USE_POLL
+# define EV_USE_POLL 0
+# endif
+
+# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
+# ifndef EV_USE_EPOLL
+# define EV_USE_EPOLL EV_FEATURE_BACKENDS
+# endif
+# else
+# undef EV_USE_EPOLL
+# define EV_USE_EPOLL 0
+# endif
+
+# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
+# ifndef EV_USE_KQUEUE
+# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
+# endif
+# else
+# undef EV_USE_KQUEUE
+# define EV_USE_KQUEUE 0
+# endif
+
+# if HAVE_PORT_H && HAVE_PORT_CREATE
+# ifndef EV_USE_PORT
+# define EV_USE_PORT EV_FEATURE_BACKENDS
+# endif
+# else
+# undef EV_USE_PORT
+# define EV_USE_PORT 0
+# endif
+
+# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
+# ifndef EV_USE_INOTIFY
+# define EV_USE_INOTIFY EV_FEATURE_OS
+# endif
+# else
+# undef EV_USE_INOTIFY
+# define EV_USE_INOTIFY 0
+# endif
+
+# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
+# ifndef EV_USE_SIGNALFD
+# define EV_USE_SIGNALFD EV_FEATURE_OS
+# endif
+# else
+# undef EV_USE_SIGNALFD
+# define EV_USE_SIGNALFD 0
+# endif
+
+# if HAVE_EVENTFD
+# ifndef EV_USE_EVENTFD
+# define EV_USE_EVENTFD EV_FEATURE_OS
+# endif
+# else
+# undef EV_USE_EVENTFD
+# define EV_USE_EVENTFD 0
+# endif
+
+#endif
+
+/* OS X, in its infinite idiocy, actually HARDCODES
+ * a limit of 1024 into their select. Where people have brains,
+ * OS X engineers apparently have a vacuum. Or maybe they were
+ * ordered to have a vacuum, or they do anything for money.
+ * This might help. Or not.
+ * Note that this must be defined early, as other include files
+ * will rely on this define as well.
+ */
+#define _DARWIN_UNLIMITED_SELECT 1
+
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stddef.h>
+
+#include <stdio.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <time.h>
+#include <limits.h>
+
+#include <signal.h>
+
+#ifdef EV_H
+# include EV_H
+#else
+# include "ev.h"
+#endif
+
+#if EV_NO_THREADS
+# undef EV_NO_SMP
+# define EV_NO_SMP 1
+# undef ECB_NO_THREADS
+# define ECB_NO_THREADS 1
+#endif
+#if EV_NO_SMP
+# undef EV_NO_SMP
+# define ECB_NO_SMP 1
+#endif
+
+#ifndef _WIN32
+# include <sys/time.h>
+# include <sys/wait.h>
+# include <unistd.h>
+#else
+# include <io.h>
+# define WIN32_LEAN_AND_MEAN
+# include <winsock2.h>
+# include <windows.h>
+# ifndef EV_SELECT_IS_WINSOCKET
+# define EV_SELECT_IS_WINSOCKET 1
+# endif
+# undef EV_AVOID_STDIO
+#endif
+
+/* this block tries to deduce configuration from header-defined symbols and defaults */
+
+/* try to deduce the maximum number of signals on this platform */
+#if defined EV_NSIG
+/* use what's provided */
+#elif defined NSIG
+# define EV_NSIG (NSIG)
+#elif defined _NSIG
+# define EV_NSIG (_NSIG)
+#elif defined SIGMAX
+# define EV_NSIG (SIGMAX+1)
+#elif defined SIG_MAX
+# define EV_NSIG (SIG_MAX+1)
+#elif defined _SIG_MAX
+# define EV_NSIG (_SIG_MAX+1)
+#elif defined MAXSIG
+# define EV_NSIG (MAXSIG+1)
+#elif defined MAX_SIG
+# define EV_NSIG (MAX_SIG+1)
+#elif defined SIGARRAYSIZE
+# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
+#elif defined _sys_nsig
+# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
+#else
+# define EV_NSIG (8 * sizeof (sigset_t) + 1)
+#endif
+
+#ifndef EV_USE_FLOOR
+# define EV_USE_FLOOR 0
+#endif
+
+#ifndef EV_USE_CLOCK_SYSCALL
+# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
+# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
+# else
+# define EV_USE_CLOCK_SYSCALL 0
+# endif
+#endif
+
+#if !(_POSIX_TIMERS > 0)
+# ifndef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 0
+# endif
+# ifndef EV_USE_REALTIME
+# define EV_USE_REALTIME 0
+# endif
+#endif
+
+#ifndef EV_USE_MONOTONIC
+# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
+# define EV_USE_MONOTONIC EV_FEATURE_OS
+# else
+# define EV_USE_MONOTONIC 0
+# endif
+#endif
+
+#ifndef EV_USE_REALTIME
+# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
+#endif
+
+#ifndef EV_USE_NANOSLEEP
+# if _POSIX_C_SOURCE >= 199309L
+# define EV_USE_NANOSLEEP EV_FEATURE_OS
+# else
+# define EV_USE_NANOSLEEP 0
+# endif
+#endif
+
+#ifndef EV_USE_SELECT
+# define EV_USE_SELECT EV_FEATURE_BACKENDS
+#endif
+
+#ifndef EV_USE_POLL
+# ifdef _WIN32
+# define EV_USE_POLL 0
+# else
+# define EV_USE_POLL EV_FEATURE_BACKENDS
+# endif
+#endif
+
+#ifndef EV_USE_EPOLL
+# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
+# define EV_USE_EPOLL EV_FEATURE_BACKENDS
+# else
+# define EV_USE_EPOLL 0
+# endif
+#endif
+
+#ifndef EV_USE_KQUEUE
+# define EV_USE_KQUEUE 0
+#endif
+
+#ifndef EV_USE_PORT
+# define EV_USE_PORT 0
+#endif
+
+#ifndef EV_USE_INOTIFY
+# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
+# define EV_USE_INOTIFY EV_FEATURE_OS
+# else
+# define EV_USE_INOTIFY 0
+# endif
+#endif
+
+#ifndef EV_PID_HASHSIZE
+# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
+#endif
+
+#ifndef EV_INOTIFY_HASHSIZE
+# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
+#endif
+
+#ifndef EV_USE_EVENTFD
+# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
+# define EV_USE_EVENTFD EV_FEATURE_OS
+# else
+# define EV_USE_EVENTFD 0
+# endif
+#endif
+
+#ifndef EV_USE_SIGNALFD
+# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
+# define EV_USE_SIGNALFD EV_FEATURE_OS
+# else
+# define EV_USE_SIGNALFD 0
+# endif
+#endif
+
+#if 0 /* debugging */
+# define EV_VERIFY 3
+# define EV_USE_4HEAP 1
+# define EV_HEAP_CACHE_AT 1
+#endif
+
+#ifndef EV_VERIFY
+# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
+#endif
+
+#ifndef EV_USE_4HEAP
+# define EV_USE_4HEAP EV_FEATURE_DATA
+#endif
+
+#ifndef EV_HEAP_CACHE_AT
+# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
+#endif
+
+#ifdef __ANDROID__
+/* supposedly, android doesn't typedef fd_mask */
+# undef EV_USE_SELECT
+# define EV_USE_SELECT 0
+/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
+# undef EV_USE_CLOCK_SYSCALL
+# define EV_USE_CLOCK_SYSCALL 0
+#endif
+
+/* aix's poll.h seems to cause lots of trouble */
+#ifdef _AIX
+/* AIX has a completely broken poll.h header */
+# undef EV_USE_POLL
+# define EV_USE_POLL 0
+#endif
+
+/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
+/* which makes programs even slower. might work on other unices, too. */
+#if EV_USE_CLOCK_SYSCALL
+# include <sys/syscall.h>
+# ifdef SYS_clock_gettime
+# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
+# undef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 1
+# else
+# undef EV_USE_CLOCK_SYSCALL
+# define EV_USE_CLOCK_SYSCALL 0
+# endif
+#endif
+
+/* this block fixes any misconfiguration where we know we run into trouble otherwise */
+
+#ifndef CLOCK_MONOTONIC
+# undef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 0
+#endif
+
+#ifndef CLOCK_REALTIME
+# undef EV_USE_REALTIME
+# define EV_USE_REALTIME 0
+#endif
+
+#if !EV_STAT_ENABLE
+# undef EV_USE_INOTIFY
+# define EV_USE_INOTIFY 0
+#endif
+
+#if !EV_USE_NANOSLEEP
+/* hp-ux has it in sys/time.h, which we unconditionally include above */
+# if !defined _WIN32 && !defined __hpux
+# include <sys/select.h>
+# endif
+#endif
+
+#if EV_USE_INOTIFY
+# include <sys/statfs.h>
+# include <sys/inotify.h>
+/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
+# ifndef IN_DONT_FOLLOW
+# undef EV_USE_INOTIFY
+# define EV_USE_INOTIFY 0
+# endif
+#endif
+
+#if EV_USE_EVENTFD
+/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
+# include <stdint.h>
+# ifndef EFD_NONBLOCK
+# define EFD_NONBLOCK O_NONBLOCK
+# endif
+# ifndef EFD_CLOEXEC
+# ifdef O_CLOEXEC
+# define EFD_CLOEXEC O_CLOEXEC
+# else
+# define EFD_CLOEXEC 02000000
+# endif
+# endif
+EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
+#endif
+
+#if EV_USE_SIGNALFD
+/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
+# include <stdint.h>
+# ifndef SFD_NONBLOCK
+# define SFD_NONBLOCK O_NONBLOCK
+# endif
+# ifndef SFD_CLOEXEC
+# ifdef O_CLOEXEC
+# define SFD_CLOEXEC O_CLOEXEC
+# else
+# define SFD_CLOEXEC 02000000
+# endif
+# endif
+EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
+
+struct signalfd_siginfo
+{
+ uint32_t ssi_signo;
+ char pad[128 - sizeof (uint32_t)];
+};
+#endif
+
+/**/
+
+#if EV_VERIFY >= 3
+# define EV_FREQUENT_CHECK ev_verify (EV_A)
+#else
+# define EV_FREQUENT_CHECK do { } while (0)
+#endif
+
+/*
+ * This is used to work around floating point rounding problems.
+ * This value is good at least till the year 4000.
+ */
+#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
+#if 0
+#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
+#endif
+
+#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
+#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
+
+#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
+#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
+
+/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
+/* ECB.H BEGIN */
+/*
+ * libecb - http://software.schmorp.de/pkg/libecb
+ *
+ * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
+ * Copyright (©) 2011 Emanuele Giaquinta
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#ifndef ECB_H
+#define ECB_H
+
+/* 16 bits major, 16 bits minor */
+#define ECB_VERSION 0x00010005
+
+#ifdef _WIN32
+ typedef signed char int8_t;
+ typedef unsigned char uint8_t;
+ typedef signed short int16_t;
+ typedef unsigned short uint16_t;
+ typedef signed int int32_t;
+ typedef unsigned int uint32_t;
+ #if __GNUC__
+ typedef signed long long int64_t;
+ typedef unsigned long long uint64_t;
+ #else /* _MSC_VER || __BORLANDC__ */
+ typedef signed __int64 int64_t;
+ typedef unsigned __int64 uint64_t;
+ #endif
+ #ifdef _WIN64
+ #define ECB_PTRSIZE 8
+ typedef uint64_t uintptr_t;
+ typedef int64_t intptr_t;
+ #else
+ #define ECB_PTRSIZE 4
+ typedef uint32_t uintptr_t;
+ typedef int32_t intptr_t;
+ #endif
+#else
+ #include <inttypes.h>
+ #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
+ #define ECB_PTRSIZE 8
+ #else
+ #define ECB_PTRSIZE 4
+ #endif
+#endif
+
+#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
+#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
+
+/* work around x32 idiocy by defining proper macros */
+#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
+ #if _ILP32
+ #define ECB_AMD64_X32 1
+ #else
+ #define ECB_AMD64 1
+ #endif
+#endif
+
+/* many compilers define _GNUC_ to some versions but then only implement
+ * what their idiot authors think are the "more important" extensions,
+ * causing enormous grief in return for some better fake benchmark numbers.
+ * or so.
+ * we try to detect these and simply assume they are not gcc - if they have
+ * an issue with that they should have done it right in the first place.
+ */
+#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
+ #define ECB_GCC_VERSION(major,minor) 0
+#else
+ #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
+#endif
+
+#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
+
+#if __clang__ && defined __has_builtin
+ #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
+#else
+ #define ECB_CLANG_BUILTIN(x) 0
+#endif
+
+#if __clang__ && defined __has_extension
+ #define ECB_CLANG_EXTENSION(x) __has_extension (x)
+#else
+ #define ECB_CLANG_EXTENSION(x) 0
+#endif
+
+#define ECB_CPP (__cplusplus+0)
+#define ECB_CPP11 (__cplusplus >= 201103L)
+#define ECB_CPP14 (__cplusplus >= 201402L)
+#define ECB_CPP17 (__cplusplus >= 201703L)
+
+#if ECB_CPP
+ #define ECB_C 0
+ #define ECB_STDC_VERSION 0
+#else
+ #define ECB_C 1
+ #define ECB_STDC_VERSION __STDC_VERSION__
+#endif
+
+#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
+#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
+#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
+
+#if ECB_CPP
+ #define ECB_EXTERN_C extern "C"
+ #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
+ #define ECB_EXTERN_C_END }
+#else
+ #define ECB_EXTERN_C extern
+ #define ECB_EXTERN_C_BEG
+ #define ECB_EXTERN_C_END
+#endif
+
+/*****************************************************************************/
+
+/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
+/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
+
+#if ECB_NO_THREADS
+ #define ECB_NO_SMP 1
+#endif
+
+#if ECB_NO_SMP
+ #define ECB_MEMORY_FENCE do { } while (0)
+#endif
+
+/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
+#if __xlC__ && ECB_CPP
+ #include <builtins.h>
+#endif
+
+#if 1400 <= _MSC_VER
+ #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
+#endif
+
+#ifndef ECB_MEMORY_FENCE
+ #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
+ #if __i386 || __i386__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
+ #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
+ #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
+ #elif ECB_GCC_AMD64
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
+ #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
+ #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
+ #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
+ #elif defined __ARM_ARCH_2__ \
+ || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
+ || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
+ || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
+ || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
+ || defined __ARM_ARCH_5TEJ__
+ /* should not need any, unless running old code on newer cpu - arm doesn't support that */
+ #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
+ || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
+ || defined __ARM_ARCH_6T2__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
+ #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
+ || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
+ #elif __aarch64__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
+ #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
+ #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
+ #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
+ #elif defined __s390__ || defined __s390x__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
+ #elif defined __mips__
+ /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
+ /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
+ #elif defined __alpha__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
+ #elif defined __hppa__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
+ #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
+ #elif defined __ia64__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
+ #elif defined __m68k__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
+ #elif defined __m88k__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
+ #elif defined __sh__
+ #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
+ #endif
+ #endif
+#endif
+
+#ifndef ECB_MEMORY_FENCE
+ #if ECB_GCC_VERSION(4,7)
+ /* see comment below (stdatomic.h) about the C11 memory model. */
+ #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
+ #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
+ #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
+
+ #elif ECB_CLANG_EXTENSION(c_atomic)
+ /* see comment below (stdatomic.h) about the C11 memory model. */
+ #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
+ #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
+ #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
+
+ #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
+ #define ECB_MEMORY_FENCE __sync_synchronize ()
+ #elif _MSC_VER >= 1500 /* VC++ 2008 */
+ /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
+ #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
+ #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
+ #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
+ #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
+ #elif _MSC_VER >= 1400 /* VC++ 2005 */
+ #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
+ #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
+ #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
+ #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
+ #elif defined _WIN32
+ #include <WinNT.h>
+ #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
+ #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
+ #include <mbarrier.h>
+ #define ECB_MEMORY_FENCE __machine_rw_barrier ()
+ #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
+ #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
+ #elif __xlC__
+ #define ECB_MEMORY_FENCE __sync ()
+ #endif
+#endif
+
+#ifndef ECB_MEMORY_FENCE
+ #if ECB_C11 && !defined __STDC_NO_ATOMICS__
+ /* we assume that these memory fences work on all variables/all memory accesses, */
+ /* not just C11 atomics and atomic accesses */
+ #include <stdatomic.h>
+ /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
+ /* any fence other than seq_cst, which isn't very efficient for us. */
+ /* Why that is, we don't know - either the C11 memory model is quite useless */
+ /* for most usages, or gcc and clang have a bug */
+ /* I *currently* lean towards the latter, and inefficiently implement */
+ /* all three of ecb's fences as a seq_cst fence */
+ /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
+ /* for all __atomic_thread_fence's except seq_cst */
+ #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
+ #endif
+#endif
+
+#ifndef ECB_MEMORY_FENCE
+ #if !ECB_AVOID_PTHREADS
+ /*
+ * if you get undefined symbol references to pthread_mutex_lock,
+ * or failure to find pthread.h, then you should implement
+ * the ECB_MEMORY_FENCE operations for your cpu/compiler
+ * OR provide pthread.h and link against the posix thread library
+ * of your system.
+ */
+ #include <pthread.h>
+ #define ECB_NEEDS_PTHREADS 1
+ #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
+
+ static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
+ #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
+ #endif
+#endif
+
+#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
+ #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
+#endif
+
+#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
+ #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
+#endif
+
+/*****************************************************************************/
+
+#if ECB_CPP
+ #define ecb_inline static inline
+#elif ECB_GCC_VERSION(2,5)
+ #define ecb_inline static __inline__
+#elif ECB_C99
+ #define ecb_inline static inline
+#else
+ #define ecb_inline static
+#endif
+
+#if ECB_GCC_VERSION(3,3)
+ #define ecb_restrict __restrict__
+#elif ECB_C99
+ #define ecb_restrict restrict
+#else
+ #define ecb_restrict
+#endif
+
+typedef int ecb_bool;
+
+#define ECB_CONCAT_(a, b) a ## b
+#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
+#define ECB_STRINGIFY_(a) # a
+#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
+#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
+
+#define ecb_function_ ecb_inline
+
+#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
+ #define ecb_attribute(attrlist) __attribute__ (attrlist)
+#else
+ #define ecb_attribute(attrlist)
+#endif
+
+#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
+ #define ecb_is_constant(expr) __builtin_constant_p (expr)
+#else
+ /* possible C11 impl for integral types
+ typedef struct ecb_is_constant_struct ecb_is_constant_struct;
+ #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
+
+ #define ecb_is_constant(expr) 0
+#endif
+
+#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
+ #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
+#else
+ #define ecb_expect(expr,value) (expr)
+#endif
+
+#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
+ #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
+#else
+ #define ecb_prefetch(addr,rw,locality)
+#endif
+
+/* no emulation for ecb_decltype */
+#if ECB_CPP11
+ // older implementations might have problems with decltype(x)::type, work around it
+ template<class T> struct ecb_decltype_t { typedef T type; };
+ #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
+#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
+ #define ecb_decltype(x) __typeof__ (x)
+#endif
+
+#if _MSC_VER >= 1300
+ #define ecb_deprecated __declspec (deprecated)
+#else
+ #define ecb_deprecated ecb_attribute ((__deprecated__))
+#endif
+
+#if _MSC_VER >= 1500
+ #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
+#elif ECB_GCC_VERSION(4,5)
+ #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
+#else
+ #define ecb_deprecated_message(msg) ecb_deprecated
+#endif
+
+#if _MSC_VER >= 1400
+ #define ecb_noinline __declspec (noinline)
+#else
+ #define ecb_noinline ecb_attribute ((__noinline__))
+#endif
+
+#define ecb_unused ecb_attribute ((__unused__))
+#define ecb_const ecb_attribute ((__const__))
+#define ecb_pure ecb_attribute ((__pure__))
+
+#if ECB_C11 || __IBMC_NORETURN
+ /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
+ #define ecb_noreturn _Noreturn
+#elif ECB_CPP11
+ #define ecb_noreturn [[noreturn]]
+#elif _MSC_VER >= 1200
+ /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
+ #define ecb_noreturn __declspec (noreturn)
+#else
+ #define ecb_noreturn ecb_attribute ((__noreturn__))
+#endif
+
+#if ECB_GCC_VERSION(4,3)
+ #define ecb_artificial ecb_attribute ((__artificial__))
+ #define ecb_hot ecb_attribute ((__hot__))
+ #define ecb_cold ecb_attribute ((__cold__))
+#else
+ #define ecb_artificial
+ #define ecb_hot
+ #define ecb_cold
+#endif
+
+/* put around conditional expressions if you are very sure that the */
+/* expression is mostly true or mostly false. note that these return */
+/* booleans, not the expression. */
+#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
+#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
+/* for compatibility to the rest of the world */
+#define ecb_likely(expr) ecb_expect_true (expr)
+#define ecb_unlikely(expr) ecb_expect_false (expr)
+
+/* count trailing zero bits and count # of one bits */
+#if ECB_GCC_VERSION(3,4) \
+ || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
+ && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
+ && ECB_CLANG_BUILTIN(__builtin_popcount))
+ /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
+ #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
+ #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
+ #define ecb_ctz32(x) __builtin_ctz (x)
+ #define ecb_ctz64(x) __builtin_ctzll (x)
+ #define ecb_popcount32(x) __builtin_popcount (x)
+ /* no popcountll */
+#else
+ ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
+ ecb_function_ ecb_const int
+ ecb_ctz32 (uint32_t x)
+ {
+#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
+ unsigned long r;
+ _BitScanForward (&r, x);
+ return (int)r;
+#else
+ int r = 0;
+
+ x &= ~x + 1; /* this isolates the lowest bit */
+
+#if ECB_branchless_on_i386
+ r += !!(x & 0xaaaaaaaa) << 0;
+ r += !!(x & 0xcccccccc) << 1;
+ r += !!(x & 0xf0f0f0f0) << 2;
+ r += !!(x & 0xff00ff00) << 3;
+ r += !!(x & 0xffff0000) << 4;
+#else
+ if (x & 0xaaaaaaaa) r += 1;
+ if (x & 0xcccccccc) r += 2;
+ if (x & 0xf0f0f0f0) r += 4;
+ if (x & 0xff00ff00) r += 8;
+ if (x & 0xffff0000) r += 16;
+#endif
+
+ return r;
+#endif
+ }
+
+ ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
+ ecb_function_ ecb_const int
+ ecb_ctz64 (uint64_t x)
+ {
+#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
+ unsigned long r;
+ _BitScanForward64 (&r, x);
+ return (int)r;
+#else
+ int shift = x & 0xffffffff ? 0 : 32;
+ return ecb_ctz32 (x >> shift) + shift;
+#endif
+ }
+
+ ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
+ ecb_function_ ecb_const int
+ ecb_popcount32 (uint32_t x)
+ {
+ x -= (x >> 1) & 0x55555555;
+ x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
+ x = ((x >> 4) + x) & 0x0f0f0f0f;
+ x *= 0x01010101;
+
+ return x >> 24;
+ }
+
+ ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
+ ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
+ {
+#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
+ unsigned long r;
+ _BitScanReverse (&r, x);
+ return (int)r;
+#else
+ int r = 0;
+
+ if (x >> 16) { x >>= 16; r += 16; }
+ if (x >> 8) { x >>= 8; r += 8; }
+ if (x >> 4) { x >>= 4; r += 4; }
+ if (x >> 2) { x >>= 2; r += 2; }
+ if (x >> 1) { r += 1; }
+
+ return r;
+#endif
+ }
+
+ ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
+ ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
+ {
+#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
+ unsigned long r;
+ _BitScanReverse64 (&r, x);
+ return (int)r;
+#else
+ int r = 0;
+
+ if (x >> 32) { x >>= 32; r += 32; }
+
+ return r + ecb_ld32 (x);
+#endif
+ }
+#endif
+
+ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
+ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
+ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
+ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
+
+ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
+ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
+{
+ return ( (x * 0x0802U & 0x22110U)
+ | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
+}
+
+ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
+ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
+{
+ x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
+ x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
+ x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
+ x = ( x >> 8 ) | ( x << 8);
+
+ return x;
+}
+
+ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
+ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
+{
+ x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
+ x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
+ x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
+ x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
+ x = ( x >> 16 ) | ( x << 16);
+
+ return x;
+}
+
+/* popcount64 is only available on 64 bit cpus as gcc builtin */
+/* so for this version we are lazy */
+ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
+ecb_function_ ecb_const int
+ecb_popcount64 (uint64_t x)
+{
+ return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
+}
+
+ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
+ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
+ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
+ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
+ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
+ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
+ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
+ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
+
+ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
+ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
+ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
+ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
+ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
+ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
+ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
+ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
+
+#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
+ #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
+ #define ecb_bswap16(x) __builtin_bswap16 (x)
+ #else
+ #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
+ #endif
+ #define ecb_bswap32(x) __builtin_bswap32 (x)
+ #define ecb_bswap64(x) __builtin_bswap64 (x)
+#elif _MSC_VER
+ #include <stdlib.h>
+ #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
+ #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
+ #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
+#else
+ ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
+ ecb_function_ ecb_const uint16_t
+ ecb_bswap16 (uint16_t x)
+ {
+ return ecb_rotl16 (x, 8);
+ }
+
+ ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
+ ecb_function_ ecb_const uint32_t
+ ecb_bswap32 (uint32_t x)
+ {
+ return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
+ }
+
+ ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
+ ecb_function_ ecb_const uint64_t
+ ecb_bswap64 (uint64_t x)
+ {
+ return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
+ }
+#endif
+
+#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
+ #define ecb_unreachable() __builtin_unreachable ()
+#else
+ /* this seems to work fine, but gcc always emits a warning for it :/ */
+ ecb_inline ecb_noreturn void ecb_unreachable (void);
+ ecb_inline ecb_noreturn void ecb_unreachable (void) { }
+#endif
+
+/* try to tell the compiler that some condition is definitely true */
+#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
+
+ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
+ecb_inline ecb_const uint32_t
+ecb_byteorder_helper (void)
+{
+ /* the union code still generates code under pressure in gcc, */
+ /* but less than using pointers, and always seems to */
+ /* successfully return a constant. */
+ /* the reason why we have this horrible preprocessor mess */
+ /* is to avoid it in all cases, at least on common architectures */
+ /* or when using a recent enough gcc version (>= 4.6) */
+#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
+ || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
+ #define ECB_LITTLE_ENDIAN 1
+ return 0x44332211;
+#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
+ || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
+ #define ECB_BIG_ENDIAN 1
+ return 0x11223344;
+#else
+ union
+ {
+ uint8_t c[4];
+ uint32_t u;
+ } u = { 0x11, 0x22, 0x33, 0x44 };
+ return u.u;
+#endif
+}
+
+ecb_inline ecb_const ecb_bool ecb_big_endian (void);
+ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
+ecb_inline ecb_const ecb_bool ecb_little_endian (void);
+ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
+
+#if ECB_GCC_VERSION(3,0) || ECB_C99
+ #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
+#else
+ #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
+#endif
+
+#if ECB_CPP
+ template<typename T>
+ static inline T ecb_div_rd (T val, T div)
+ {
+ return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
+ }
+ template<typename T>
+ static inline T ecb_div_ru (T val, T div)
+ {
+ return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
+ }
+#else
+ #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
+ #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
+#endif
+
+#if ecb_cplusplus_does_not_suck
+ /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
+ template<typename T, int N>
+ static inline int ecb_array_length (const T (&arr)[N])
+ {
+ return N;
+ }
+#else
+ #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
+#endif
+
+ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
+ecb_function_ ecb_const uint32_t
+ecb_binary16_to_binary32 (uint32_t x)
+{
+ unsigned int s = (x & 0x8000) << (31 - 15);
+ int e = (x >> 10) & 0x001f;
+ unsigned int m = x & 0x03ff;
+
+ if (ecb_expect_false (e == 31))
+ /* infinity or NaN */
+ e = 255 - (127 - 15);
+ else if (ecb_expect_false (!e))
+ {
+ if (ecb_expect_true (!m))
+ /* zero, handled by code below by forcing e to 0 */
+ e = 0 - (127 - 15);
+ else
+ {
+ /* subnormal, renormalise */
+ unsigned int s = 10 - ecb_ld32 (m);
+
+ m = (m << s) & 0x3ff; /* mask implicit bit */
+ e -= s - 1;
+ }
+ }
+
+ /* e and m now are normalised, or zero, (or inf or nan) */
+ e += 127 - 15;
+
+ return s | (e << 23) | (m << (23 - 10));
+}
+
+ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
+ecb_function_ ecb_const uint16_t
+ecb_binary32_to_binary16 (uint32_t x)
+{
+ unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
+ unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
+ unsigned int m = x & 0x007fffff;
+
+ x &= 0x7fffffff;
+
+ /* if it's within range of binary16 normals, use fast path */
+ if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
+ {
+ /* mantissa round-to-even */
+ m += 0x00000fff + ((m >> (23 - 10)) & 1);
+
+ /* handle overflow */
+ if (ecb_expect_false (m >= 0x00800000))
+ {
+ m >>= 1;
+ e += 1;
+ }
+
+ return s | (e << 10) | (m >> (23 - 10));
+ }
+
+ /* handle large numbers and infinity */
+ if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
+ return s | 0x7c00;
+
+ /* handle zero, subnormals and small numbers */
+ if (ecb_expect_true (x < 0x38800000))
+ {
+ /* zero */
+ if (ecb_expect_true (!x))
+ return s;
+
+ /* handle subnormals */
+
+ /* too small, will be zero */
+ if (e < (14 - 24)) /* might not be sharp, but is good enough */
+ return s;
+
+ m |= 0x00800000; /* make implicit bit explicit */
+
+ /* very tricky - we need to round to the nearest e (+10) bit value */
+ {
+ unsigned int bits = 14 - e;
+ unsigned int half = (1 << (bits - 1)) - 1;
+ unsigned int even = (m >> bits) & 1;
+
+ /* if this overflows, we will end up with a normalised number */
+ m = (m + half + even) >> bits;
+ }
+
+ return s | m;
+ }
+
+ /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
+ m >>= 13;
+
+ return s | 0x7c00 | m | !m;
+}
+
+/*******************************************************************************/
+/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
+
+/* basically, everything uses "ieee pure-endian" floating point numbers */
+/* the only noteworthy exception is ancient armle, which uses order 43218765 */
+#if 0 \
+ || __i386 || __i386__ \
+ || ECB_GCC_AMD64 \
+ || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
+ || defined __s390__ || defined __s390x__ \
+ || defined __mips__ \
+ || defined __alpha__ \
+ || defined __hppa__ \
+ || defined __ia64__ \
+ || defined __m68k__ \
+ || defined __m88k__ \
+ || defined __sh__ \
+ || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
+ || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
+ || defined __aarch64__
+ #define ECB_STDFP 1
+ #include <string.h> /* for memcpy */
+#else
+ #define ECB_STDFP 0
+#endif
+
+#ifndef ECB_NO_LIBM
+
+ #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
+
+ /* only the oldest of old doesn't have this one. solaris. */
+ #ifdef INFINITY
+ #define ECB_INFINITY INFINITY
+ #else
+ #define ECB_INFINITY HUGE_VAL
+ #endif
+
+ #ifdef NAN
+ #define ECB_NAN NAN
+ #else
+ #define ECB_NAN ECB_INFINITY
+ #endif
+
+ #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
+ #define ecb_ldexpf(x,e) ldexpf ((x), (e))
+ #define ecb_frexpf(x,e) frexpf ((x), (e))
+ #else
+ #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
+ #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
+ #endif
+
+ /* convert a float to ieee single/binary32 */
+ ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
+ ecb_function_ ecb_const uint32_t
+ ecb_float_to_binary32 (float x)
+ {
+ uint32_t r;
+
+ #if ECB_STDFP
+ memcpy (&r, &x, 4);
+ #else
+ /* slow emulation, works for anything but -0 */
+ uint32_t m;
+ int e;
+
+ if (x == 0e0f ) return 0x00000000U;
+ if (x > +3.40282346638528860e+38f) return 0x7f800000U;
+ if (x < -3.40282346638528860e+38f) return 0xff800000U;
+ if (x != x ) return 0x7fbfffffU;
+
+ m = ecb_frexpf (x, &e) * 0x1000000U;
+
+ r = m & 0x80000000U;
+
+ if (r)
+ m = -m;
+
+ if (e <= -126)
+ {
+ m &= 0xffffffU;
+ m >>= (-125 - e);
+ e = -126;
+ }
+
+ r |= (e + 126) << 23;
+ r |= m & 0x7fffffU;
+ #endif
+
+ return r;
+ }
+
+ /* converts an ieee single/binary32 to a float */
+ ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
+ ecb_function_ ecb_const float
+ ecb_binary32_to_float (uint32_t x)
+ {
+ float r;
+
+ #if ECB_STDFP
+ memcpy (&r, &x, 4);
+ #else
+ /* emulation, only works for normals and subnormals and +0 */
+ int neg = x >> 31;
+ int e = (x >> 23) & 0xffU;
+
+ x &= 0x7fffffU;
+
+ if (e)
+ x |= 0x800000U;
+ else
+ e = 1;
+
+ /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
+ r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
+
+ r = neg ? -r : r;
+ #endif
+
+ return r;
+ }
+
+ /* convert a double to ieee double/binary64 */
+ ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
+ ecb_function_ ecb_const uint64_t
+ ecb_double_to_binary64 (double x)
+ {
+ uint64_t r;
+
+ #if ECB_STDFP
+ memcpy (&r, &x, 8);
+ #else
+ /* slow emulation, works for anything but -0 */
+ uint64_t m;
+ int e;
+
+ if (x == 0e0 ) return 0x0000000000000000U;
+ if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
+ if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
+ if (x != x ) return 0X7ff7ffffffffffffU;
+
+ m = frexp (x, &e) * 0x20000000000000U;
+
+ r = m & 0x8000000000000000;;
+
+ if (r)
+ m = -m;
+
+ if (e <= -1022)
+ {
+ m &= 0x1fffffffffffffU;
+ m >>= (-1021 - e);
+ e = -1022;
+ }
+
+ r |= ((uint64_t)(e + 1022)) << 52;
+ r |= m & 0xfffffffffffffU;
+ #endif
+
+ return r;
+ }
+
+ /* converts an ieee double/binary64 to a double */
+ ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
+ ecb_function_ ecb_const double
+ ecb_binary64_to_double (uint64_t x)
+ {
+ double r;
+
+ #if ECB_STDFP
+ memcpy (&r, &x, 8);
+ #else
+ /* emulation, only works for normals and subnormals and +0 */
+ int neg = x >> 63;
+ int e = (x >> 52) & 0x7ffU;
+
+ x &= 0xfffffffffffffU;
+
+ if (e)
+ x |= 0x10000000000000U;
+ else
+ e = 1;
+
+ /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
+ r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
+
+ r = neg ? -r : r;
+ #endif
+
+ return r;
+ }
+
+ /* convert a float to ieee half/binary16 */
+ ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
+ ecb_function_ ecb_const uint16_t
+ ecb_float_to_binary16 (float x)
+ {
+ return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
+ }
+
+ /* convert an ieee half/binary16 to float */
+ ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
+ ecb_function_ ecb_const float
+ ecb_binary16_to_float (uint16_t x)
+ {
+ return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
+ }
+
+#endif
+
+#endif
+
+/* ECB.H END */
+
+#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
+/* if your architecture doesn't need memory fences, e.g. because it is
+ * single-cpu/core, or if you use libev in a project that doesn't use libev
+ * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
+ * libev, in which cases the memory fences become nops.
+ * alternatively, you can remove this #error and link against libpthread,
+ * which will then provide the memory fences.
+ */
+# error "memory fences not defined for your architecture, please report"
+#endif
+
+#ifndef ECB_MEMORY_FENCE
+# define ECB_MEMORY_FENCE do { } while (0)
+# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
+# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
+#endif
+
+#define expect_false(cond) ecb_expect_false (cond)
+#define expect_true(cond) ecb_expect_true (cond)
+#define noinline ecb_noinline
+
+#define inline_size ecb_inline
+
+#if EV_FEATURE_CODE
+# define inline_speed ecb_inline
+#else
+# define inline_speed noinline static
+#endif
+
+#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
+
+#if EV_MINPRI == EV_MAXPRI
+# define ABSPRI(w) (((W)w), 0)
+#else
+# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
+#endif
+
+#define EMPTY /* required for microsofts broken pseudo-c compiler */
+#define EMPTY2(a,b) /* used to suppress some warnings */
+
+typedef ev_watcher *W;
+typedef ev_watcher_list *WL;
+typedef ev_watcher_time *WT;
+
+#define ev_active(w) ((W)(w))->active
+#define ev_at(w) ((WT)(w))->at
+
+#if EV_USE_REALTIME
+/* sig_atomic_t is used to avoid per-thread variables or locking but still */
+/* giving it a reasonably high chance of working on typical architectures */
+static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
+#endif
+
+#if EV_USE_MONOTONIC
+static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
+#endif
+
+#ifndef EV_FD_TO_WIN32_HANDLE
+# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
+#endif
+#ifndef EV_WIN32_HANDLE_TO_FD
+# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
+#endif
+#ifndef EV_WIN32_CLOSE_FD
+# define EV_WIN32_CLOSE_FD(fd) close (fd)
+#endif
+
+#ifdef _WIN32
+# include "ev_win32.c"
+#endif
+
+/*****************************************************************************/
+
+/* define a suitable floor function (only used by periodics atm) */
+
+#if EV_USE_FLOOR
+# include <math.h>
+# define ev_floor(v) floor (v)
+#else
+
+#include <float.h>
+
+/* a floor() replacement function, should be independent of ev_tstamp type */
+noinline
+static ev_tstamp
+ev_floor (ev_tstamp v)
+{
+ /* the choice of shift factor is not terribly important */
+#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
+ const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
+#else
+ const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
+#endif
+
+ /* argument too large for an unsigned long? */
+ if (expect_false (v >= shift))
+ {
+ ev_tstamp f;
+
+ if (v == v - 1.)
+ return v; /* very large number */
+
+ f = shift * ev_floor (v * (1. / shift));
+ return f + ev_floor (v - f);
+ }
+
+ /* special treatment for negative args? */
+ if (expect_false (v < 0.))
+ {
+ ev_tstamp f = -ev_floor (-v);
+
+ return f - (f == v ? 0 : 1);
+ }
+
+ /* fits into an unsigned long */
+ return (unsigned long)v;
+}
+
+#endif
+
+/*****************************************************************************/
+
+#ifdef __linux
+# include <sys/utsname.h>
+#endif
+
+noinline ecb_cold
+static unsigned int
+ev_linux_version (void)
+{
+#ifdef __linux
+ unsigned int v = 0;
+ struct utsname buf;
+ int i;
+ char *p = buf.release;
+
+ if (uname (&buf))
+ return 0;
+
+ for (i = 3+1; --i; )
+ {
+ unsigned int c = 0;
+
+ for (;;)
+ {
+ if (*p >= '0' && *p <= '9')
+ c = c * 10 + *p++ - '0';
+ else
+ {
+ p += *p == '.';
+ break;
+ }
+ }
+
+ v = (v << 8) | c;
+ }
+
+ return v;
+#else
+ return 0;
+#endif
+}
+
+/*****************************************************************************/
+
+#if EV_AVOID_STDIO
+noinline ecb_cold
+static void
+ev_printerr (const char *msg)
+{
+ write (STDERR_FILENO, msg, strlen (msg));
+}
+#endif
+
+static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
+
+ecb_cold
+void
+ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
+{
+ syserr_cb = cb;
+}
+
+noinline ecb_cold
+static void
+ev_syserr (const char *msg)
+{
+ if (!msg)
+ msg = "(libev) system error";
+
+ if (syserr_cb)
+ syserr_cb (msg);
+ else
+ {
+#if EV_AVOID_STDIO
+ ev_printerr (msg);
+ ev_printerr (": ");
+ ev_printerr (strerror (errno));
+ ev_printerr ("\n");
+#else
+ perror (msg);
+#endif
+ abort ();
+ }
+}
+
+static void *
+ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
+{
+ /* some systems, notably openbsd and darwin, fail to properly
+ * implement realloc (x, 0) (as required by both ansi c-89 and
+ * the single unix specification, so work around them here.
+ * recently, also (at least) fedora and debian started breaking it,
+ * despite documenting it otherwise.
+ */
+
+ if (size)
+ return realloc (ptr, size);
+
+ free (ptr);
+ return 0;
+}
+
+static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
+
+ecb_cold
+void
+ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
+{
+ alloc = cb;
+}
+
+inline_speed void *
+ev_realloc (void *ptr, long size)
+{
+ ptr = alloc (ptr, size);
+
+ if (!ptr && size)
+ {
+#if EV_AVOID_STDIO
+ ev_printerr ("(libev) memory allocation failed, aborting.\n");
+#else
+ fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
+#endif
+ abort ();
+ }
+
+ return ptr;
+}
+
+#define ev_malloc(size) ev_realloc (0, (size))
+#define ev_free(ptr) ev_realloc ((ptr), 0)
+
+/*****************************************************************************/
+
+/* set in reify when reification needed */
+#define EV_ANFD_REIFY 1
+
+/* file descriptor info structure */
+typedef struct
+{
+ WL head;
+ unsigned char events; /* the events watched for */
+ unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
+ unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
+ unsigned char unused;
+#if EV_USE_EPOLL
+ unsigned int egen; /* generation counter to counter epoll bugs */
+#endif
+#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
+ SOCKET handle;
+#endif
+#if EV_USE_IOCP
+ OVERLAPPED or, ow;
+#endif
+} ANFD;
+
+/* stores the pending event set for a given watcher */
+typedef struct
+{
+ W w;
+ int events; /* the pending event set for the given watcher */
+} ANPENDING;
+
+#if EV_USE_INOTIFY
+/* hash table entry per inotify-id */
+typedef struct
+{
+ WL head;
+} ANFS;
+#endif
+
+/* Heap Entry */
+#if EV_HEAP_CACHE_AT
+ /* a heap element */
+ typedef struct {
+ ev_tstamp at;
+ WT w;
+ } ANHE;
+
+ #define ANHE_w(he) (he).w /* access watcher, read-write */
+ #define ANHE_at(he) (he).at /* access cached at, read-only */
+ #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
+#else
+ /* a heap element */
+ typedef WT ANHE;
+
+ #define ANHE_w(he) (he)
+ #define ANHE_at(he) (he)->at
+ #define ANHE_at_cache(he)
+#endif
+
+#if EV_MULTIPLICITY
+
+ struct ev_loop
+ {
+ ev_tstamp ev_rt_now;
+ #define ev_rt_now ((loop)->ev_rt_now)
+ #define VAR(name,decl) decl;
+ #include "ev_vars.h"
+ #undef VAR
+ };
+ #include "ev_wrap.h"
+
+ static struct ev_loop default_loop_struct;
+ EV_API_DECL struct ev_loop *ev_default_loop_ptr; /* needs to be initialised to make it a definition despite extern */
+ struct ev_loop *ev_default_loop_ptr = 0;
+
+#else
+
+ EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
+ #define VAR(name,decl) static decl;
+ #include "ev_vars.h"
+ #undef VAR
+
+ static int ev_default_loop_ptr;
+
+#endif
+
+#if EV_FEATURE_API
+# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
+# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
+# define EV_INVOKE_PENDING invoke_cb (EV_A)
+#else
+# define EV_RELEASE_CB (void)0
+# define EV_ACQUIRE_CB (void)0
+# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
+#endif
+
+#define EVBREAK_RECURSE 0x80
+
+/*****************************************************************************/
+
+#ifndef EV_HAVE_EV_TIME
+ev_tstamp
+ev_time (void) EV_NOEXCEPT
+{
+#if EV_USE_REALTIME
+ if (expect_true (have_realtime))
+ {
+ struct timespec ts;
+ clock_gettime (CLOCK_REALTIME, &ts);
+ return ts.tv_sec + ts.tv_nsec * 1e-9;
+ }
+#endif
+
+ struct timeval tv;
+ gettimeofday (&tv, 0);
+ return tv.tv_sec + tv.tv_usec * 1e-6;
+}
+#endif
+
+inline_size ev_tstamp
+get_clock (void)
+{
+#if EV_USE_MONOTONIC
+ if (expect_true (have_monotonic))
+ {
+ struct timespec ts;
+ clock_gettime (CLOCK_MONOTONIC, &ts);
+ return ts.tv_sec + ts.tv_nsec * 1e-9;
+ }
+#endif
+
+ return ev_time ();
+}
+
+#if EV_MULTIPLICITY
+ev_tstamp
+ev_now (EV_P) EV_NOEXCEPT
+{
+ return ev_rt_now;
+}
+#endif
+
+void
+ev_sleep (ev_tstamp delay) EV_NOEXCEPT
+{
+ if (delay > 0.)
+ {
+#if EV_USE_NANOSLEEP
+ struct timespec ts;
+
+ EV_TS_SET (ts, delay);
+ nanosleep (&ts, 0);
+#elif defined _WIN32
+ /* maybe this should round up, as ms is very low resolution */
+ /* compared to select (µs) or nanosleep (ns) */
+ Sleep ((unsigned long)(delay * 1e3));
+#else
+ struct timeval tv;
+
+ /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
+ /* something not guaranteed by newer posix versions, but guaranteed */
+ /* by older ones */
+ EV_TV_SET (tv, delay);
+ select (0, 0, 0, 0, &tv);
+#endif
+ }
+}
+
+/*****************************************************************************/
+
+#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
+
+/* find a suitable new size for the given array, */
+/* hopefully by rounding to a nice-to-malloc size */
+inline_size int
+array_nextsize (int elem, int cur, int cnt)
+{
+ int ncur = cur + 1;
+
+ do
+ ncur <<= 1;
+ while (cnt > ncur);
+
+ /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
+ if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
+ {
+ ncur *= elem;
+ ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
+ ncur = ncur - sizeof (void *) * 4;
+ ncur /= elem;
+ }
+
+ return ncur;
+}
+
+noinline ecb_cold
+static void *
+array_realloc (int elem, void *base, int *cur, int cnt)
+{
+ *cur = array_nextsize (elem, *cur, cnt);
+ return ev_realloc (base, elem * *cur);
+}
+
+#define array_init_zero(base,count) \
+ memset ((void *)(base), 0, sizeof (*(base)) * (count))
+
+#define array_needsize(type,base,cur,cnt,init) \
+ if (expect_false ((cnt) > (cur))) \
+ { \
+ ecb_unused int ocur_ = (cur); \
+ (base) = (type *)array_realloc \
+ (sizeof (type), (base), &(cur), (cnt)); \
+ init ((base) + (ocur_), (cur) - ocur_); \
+ }
+
+#if 0
+#define array_slim(type,stem) \
+ if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
+ { \
+ stem ## max = array_roundsize (stem ## cnt >> 1); \
+ base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
+ fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
+ }
+#endif
+
+#define array_free(stem, idx) \
+ ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
+
+/*****************************************************************************/
+
+/* dummy callback for pending events */
+noinline
+static void
+pendingcb (EV_P_ ev_prepare *w, int revents)
+{
+}
+
+noinline
+void
+ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
+{
+ W w_ = (W)w;
+ int pri = ABSPRI (w_);
+
+ if (expect_false (w_->pending))
+ pendings [pri][w_->pending - 1].events |= revents;
+ else
+ {
+ w_->pending = ++pendingcnt [pri];
+ array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
+ pendings [pri][w_->pending - 1].w = w_;
+ pendings [pri][w_->pending - 1].events = revents;
+ }
+
+ pendingpri = NUMPRI - 1;
+}
+
+inline_speed void
+feed_reverse (EV_P_ W w)
+{
+ array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
+ rfeeds [rfeedcnt++] = w;
+}
+
+inline_size void
+feed_reverse_done (EV_P_ int revents)
+{
+ do
+ ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
+ while (rfeedcnt);
+}
+
+inline_speed void
+queue_events (EV_P_ W *events, int eventcnt, int type)
+{
+ int i;
+
+ for (i = 0; i < eventcnt; ++i)
+ ev_feed_event (EV_A_ events [i], type);
+}
+
+/*****************************************************************************/
+
+inline_speed void
+fd_event_nocheck (EV_P_ int fd, int revents)
+{
+ ANFD *anfd = anfds + fd;
+ ev_io *w;
+
+ for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
+ {
+ int ev = w->events & revents;
+
+ if (ev)
+ ev_feed_event (EV_A_ (W)w, ev);
+ }
+}
+
+/* do not submit kernel events for fds that have reify set */
+/* because that means they changed while we were polling for new events */
+inline_speed void
+fd_event (EV_P_ int fd, int revents)
+{
+ ANFD *anfd = anfds + fd;
+
+ if (expect_true (!anfd->reify))
+ fd_event_nocheck (EV_A_ fd, revents);
+}
+
+void
+ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
+{
+ if (fd >= 0 && fd < anfdmax)
+ fd_event_nocheck (EV_A_ fd, revents);
+}
+
+/* make sure the external fd watch events are in-sync */
+/* with the kernel/libev internal state */
+inline_size void
+fd_reify (EV_P)
+{
+ int i;
+
+#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
+ for (i = 0; i < fdchangecnt; ++i)
+ {
+ int fd = fdchanges [i];
+ ANFD *anfd = anfds + fd;
+
+ if (anfd->reify & EV__IOFDSET && anfd->head)
+ {
+ SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
+
+ if (handle != anfd->handle)
+ {
+ unsigned long arg;
+
+ assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
+
+ /* handle changed, but fd didn't - we need to do it in two steps */
+ backend_modify (EV_A_ fd, anfd->events, 0);
+ anfd->events = 0;
+ anfd->handle = handle;
+ }
+ }
+ }
+#endif
+
+ for (i = 0; i < fdchangecnt; ++i)
+ {
+ int fd = fdchanges [i];
+ ANFD *anfd = anfds + fd;
+ ev_io *w;
+
+ unsigned char o_events = anfd->events;
+ unsigned char o_reify = anfd->reify;
+
+ anfd->reify = 0;
+
+ /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
+ {
+ anfd->events = 0;
+
+ for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
+ anfd->events |= (unsigned char)w->events;
+
+ if (o_events != anfd->events)
+ o_reify = EV__IOFDSET; /* actually |= */
+ }
+
+ if (o_reify & EV__IOFDSET)
+ backend_modify (EV_A_ fd, o_events, anfd->events);
+ }
+
+ fdchangecnt = 0;
+}
+
+/* something about the given fd changed */
+inline_size
+void
+fd_change (EV_P_ int fd, int flags)
+{
+ unsigned char reify = anfds [fd].reify;
+ anfds [fd].reify |= flags;
+
+ if (expect_true (!reify))
+ {
+ ++fdchangecnt;
+ array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
+ fdchanges [fdchangecnt - 1] = fd;
+ }
+}
+
+/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
+inline_speed ecb_cold void
+fd_kill (EV_P_ int fd)
+{
+ ev_io *w;
+
+ while ((w = (ev_io *)anfds [fd].head))
+ {
+ ev_io_stop (EV_A_ w);
+ ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
+ }
+}
+
+/* check whether the given fd is actually valid, for error recovery */
+inline_size ecb_cold int
+fd_valid (int fd)
+{
+#ifdef _WIN32
+ return EV_FD_TO_WIN32_HANDLE (fd) != -1;
+#else
+ return fcntl (fd, F_GETFD) != -1;
+#endif
+}
+
+/* called on EBADF to verify fds */
+noinline ecb_cold
+static void
+fd_ebadf (EV_P)
+{
+ int fd;
+
+ for (fd = 0; fd < anfdmax; ++fd)
+ if (anfds [fd].events)
+ if (!fd_valid (fd) && errno == EBADF)
+ fd_kill (EV_A_ fd);
+}
+
+/* called on ENOMEM in select/poll to kill some fds and retry */
+noinline ecb_cold
+static void
+fd_enomem (EV_P)
+{
+ int fd;
+
+ for (fd = anfdmax; fd--; )
+ if (anfds [fd].events)
+ {
+ fd_kill (EV_A_ fd);
+ break;
+ }
+}
+
+/* usually called after fork if backend needs to re-arm all fds from scratch */
+noinline
+static void
+fd_rearm_all (EV_P)
+{
+ int fd;
+
+ for (fd = 0; fd < anfdmax; ++fd)
+ if (anfds [fd].events)
+ {
+ anfds [fd].events = 0;
+ anfds [fd].emask = 0;
+ fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
+ }
+}
+
+/* used to prepare libev internal fd's */
+/* this is not fork-safe */
+inline_speed void
+fd_intern (int fd)
+{
+#ifdef _WIN32
+ unsigned long arg = 1;
+ ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
+#else
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+ fcntl (fd, F_SETFL, O_NONBLOCK);
+#endif
+}
+
+/*****************************************************************************/
+
+/*
+ * the heap functions want a real array index. array index 0 is guaranteed to not
+ * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
+ * the branching factor of the d-tree.
+ */
+
+/*
+ * at the moment we allow libev the luxury of two heaps,
+ * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
+ * which is more cache-efficient.
+ * the difference is about 5% with 50000+ watchers.
+ */
+#if EV_USE_4HEAP
+
+#define DHEAP 4
+#define HEAP0 (DHEAP - 1) /* index of first element in heap */
+#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
+#define UPHEAP_DONE(p,k) ((p) == (k))
+
+/* away from the root */
+inline_speed void
+downheap (ANHE *heap, int N, int k)
+{
+ ANHE he = heap [k];
+ ANHE *E = heap + N + HEAP0;
+
+ for (;;)
+ {
+ ev_tstamp minat;
+ ANHE *minpos;
+ ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
+
+ /* find minimum child */
+ if (expect_true (pos + DHEAP - 1 < E))
+ {
+ /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
+ if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
+ if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
+ if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
+ }
+ else if (pos < E)
+ {
+ /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
+ if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
+ if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
+ if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
+ }
+ else
+ break;
+
+ if (ANHE_at (he) <= minat)
+ break;
+
+ heap [k] = *minpos;
+ ev_active (ANHE_w (*minpos)) = k;
+
+ k = minpos - heap;
+ }
+
+ heap [k] = he;
+ ev_active (ANHE_w (he)) = k;
+}
+
+#else /* 4HEAP */
+
+#define HEAP0 1
+#define HPARENT(k) ((k) >> 1)
+#define UPHEAP_DONE(p,k) (!(p))
+
+/* away from the root */
+inline_speed void
+downheap (ANHE *heap, int N, int k)
+{
+ ANHE he = heap [k];
+
+ for (;;)
+ {
+ int c = k << 1;
+
+ if (c >= N + HEAP0)
+ break;
+
+ c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
+ ? 1 : 0;
+
+ if (ANHE_at (he) <= ANHE_at (heap [c]))
+ break;
+
+ heap [k] = heap [c];
+ ev_active (ANHE_w (heap [k])) = k;
+
+ k = c;
+ }
+
+ heap [k] = he;
+ ev_active (ANHE_w (he)) = k;
+}
+#endif
+
+/* towards the root */
+inline_speed void
+upheap (ANHE *heap, int k)
+{
+ ANHE he = heap [k];
+
+ for (;;)
+ {
+ int p = HPARENT (k);
+
+ if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
+ break;
+
+ heap [k] = heap [p];
+ ev_active (ANHE_w (heap [k])) = k;
+ k = p;
+ }
+
+ heap [k] = he;
+ ev_active (ANHE_w (he)) = k;
+}
+
+/* move an element suitably so it is in a correct place */
+inline_size void
+adjustheap (ANHE *heap, int N, int k)
+{
+ if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
+ upheap (heap, k);
+ else
+ downheap (heap, N, k);
+}
+
+/* rebuild the heap: this function is used only once and executed rarely */
+inline_size void
+reheap (ANHE *heap, int N)
+{
+ int i;
+
+ /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
+ /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
+ for (i = 0; i < N; ++i)
+ upheap (heap, i + HEAP0);
+}
+
+/*****************************************************************************/
+
+/* associate signal watchers to a signal signal */
+typedef struct
+{
+ EV_ATOMIC_T pending;
+#if EV_MULTIPLICITY
+ EV_P;
+#endif
+ WL head;
+} ANSIG;
+
+static ANSIG signals [EV_NSIG - 1];
+
+/*****************************************************************************/
+
+#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
+
+noinline ecb_cold
+static void
+evpipe_init (EV_P)
+{
+ if (!ev_is_active (&pipe_w))
+ {
+ int fds [2];
+
+# if EV_USE_EVENTFD
+ fds [0] = -1;
+ fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (fds [1] < 0 && errno == EINVAL)
+ fds [1] = eventfd (0, 0);
+
+ if (fds [1] < 0)
+# endif
+ {
+ while (pipe (fds))
+ ev_syserr ("(libev) error creating signal/async pipe");
+
+ fd_intern (fds [0]);
+ }
+
+ evpipe [0] = fds [0];
+
+ if (evpipe [1] < 0)
+ evpipe [1] = fds [1]; /* first call, set write fd */
+ else
+ {
+ /* on subsequent calls, do not change evpipe [1] */
+ /* so that evpipe_write can always rely on its value. */
+ /* this branch does not do anything sensible on windows, */
+ /* so must not be executed on windows */
+
+ dup2 (fds [1], evpipe [1]);
+ close (fds [1]);
+ }
+
+ fd_intern (evpipe [1]);
+
+ ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
+ ev_io_start (EV_A_ &pipe_w);
+ ev_unref (EV_A); /* watcher should not keep loop alive */
+ }
+}
+
+inline_speed void
+evpipe_write (EV_P_ EV_ATOMIC_T *flag)
+{
+ ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
+
+ if (expect_true (*flag))
+ return;
+
+ *flag = 1;
+ ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
+
+ pipe_write_skipped = 1;
+
+ ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
+
+ if (pipe_write_wanted)
+ {
+ int old_errno;
+
+ pipe_write_skipped = 0;
+ ECB_MEMORY_FENCE_RELEASE;
+
+ old_errno = errno; /* save errno because write will clobber it */
+
+#if EV_USE_EVENTFD
+ if (evpipe [0] < 0)
+ {
+ uint64_t counter = 1;
+ write (evpipe [1], &counter, sizeof (uint64_t));
+ }
+ else
+#endif
+ {
+#ifdef _WIN32
+ WSABUF buf;
+ DWORD sent;
+ buf.buf = (char *)&buf;
+ buf.len = 1;
+ WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
+#else
+ write (evpipe [1], &(evpipe [1]), 1);
+#endif
+ }
+
+ errno = old_errno;
+ }
+}
+
+/* called whenever the libev signal pipe */
+/* got some events (signal, async) */
+static void
+pipecb (EV_P_ ev_io *iow, int revents)
+{
+ int i;
+
+ if (revents & EV_READ)
+ {
+#if EV_USE_EVENTFD
+ if (evpipe [0] < 0)
+ {
+ uint64_t counter;
+ read (evpipe [1], &counter, sizeof (uint64_t));
+ }
+ else
+#endif
+ {
+ char dummy[4];
+#ifdef _WIN32
+ WSABUF buf;
+ DWORD recvd;
+ DWORD flags = 0;
+ buf.buf = dummy;
+ buf.len = sizeof (dummy);
+ WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
+#else
+ read (evpipe [0], &dummy, sizeof (dummy));
+#endif
+ }
+ }
+
+ pipe_write_skipped = 0;
+
+ ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
+
+#if EV_SIGNAL_ENABLE
+ if (sig_pending)
+ {
+ sig_pending = 0;
+
+ ECB_MEMORY_FENCE;
+
+ for (i = EV_NSIG - 1; i--; )
+ if (expect_false (signals [i].pending))
+ ev_feed_signal_event (EV_A_ i + 1);
+ }
+#endif
+
+#if EV_ASYNC_ENABLE
+ if (async_pending)
+ {
+ async_pending = 0;
+
+ ECB_MEMORY_FENCE;
+
+ for (i = asynccnt; i--; )
+ if (asyncs [i]->sent)
+ {
+ asyncs [i]->sent = 0;
+ ECB_MEMORY_FENCE_RELEASE;
+ ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
+ }
+ }
+#endif
+}
+
+/*****************************************************************************/
+
+void
+ev_feed_signal (int signum) EV_NOEXCEPT
+{
+#if EV_MULTIPLICITY
+ EV_P;
+ ECB_MEMORY_FENCE_ACQUIRE;
+ EV_A = signals [signum - 1].loop;
+
+ if (!EV_A)
+ return;
+#endif
+
+ signals [signum - 1].pending = 1;
+ evpipe_write (EV_A_ &sig_pending);
+}
+
+static void
+ev_sighandler (int signum)
+{
+#ifdef _WIN32
+ signal (signum, ev_sighandler);
+#endif
+
+ ev_feed_signal (signum);
+}
+
+noinline
+void
+ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
+{
+ WL w;
+
+ if (expect_false (signum <= 0 || signum >= EV_NSIG))
+ return;
+
+ --signum;
+
+#if EV_MULTIPLICITY
+ /* it is permissible to try to feed a signal to the wrong loop */
+ /* or, likely more useful, feeding a signal nobody is waiting for */
+
+ if (expect_false (signals [signum].loop != EV_A))
+ return;
+#endif
+
+ signals [signum].pending = 0;
+ ECB_MEMORY_FENCE_RELEASE;
+
+ for (w = signals [signum].head; w; w = w->next)
+ ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
+}
+
+#if EV_USE_SIGNALFD
+static void
+sigfdcb (EV_P_ ev_io *iow, int revents)
+{
+ struct signalfd_siginfo si[2], *sip; /* these structs are big */
+
+ for (;;)
+ {
+ ssize_t res = read (sigfd, si, sizeof (si));
+
+ /* not ISO-C, as res might be -1, but works with SuS */
+ for (sip = si; (char *)sip < (char *)si + res; ++sip)
+ ev_feed_signal_event (EV_A_ sip->ssi_signo);
+
+ if (res < (ssize_t)sizeof (si))
+ break;
+ }
+}
+#endif
+
+#endif
+
+/*****************************************************************************/
+
+#if EV_CHILD_ENABLE
+static WL childs [EV_PID_HASHSIZE];
+
+static ev_signal childev;
+
+#ifndef WIFCONTINUED
+# define WIFCONTINUED(status) 0
+#endif
+
+/* handle a single child status event */
+inline_speed void
+child_reap (EV_P_ int chain, int pid, int status)
+{
+ ev_child *w;
+ int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
+
+ for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
+ {
+ if ((w->pid == pid || !w->pid)
+ && (!traced || (w->flags & 1)))
+ {
+ ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
+ w->rpid = pid;
+ w->rstatus = status;
+ ev_feed_event (EV_A_ (W)w, EV_CHILD);
+ }
+ }
+}
+
+#ifndef WCONTINUED
+# define WCONTINUED 0
+#endif
+
+/* called on sigchld etc., calls waitpid */
+static void
+childcb (EV_P_ ev_signal *sw, int revents)
+{
+ int pid, status;
+
+ /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
+ if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
+ if (!WCONTINUED
+ || errno != EINVAL
+ || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
+ return;
+
+ /* make sure we are called again until all children have been reaped */
+ /* we need to do it this way so that the callback gets called before we continue */
+ ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
+
+ child_reap (EV_A_ pid, pid, status);
+ if ((EV_PID_HASHSIZE) > 1)
+ child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
+}
+
+#endif
+
+/*****************************************************************************/
+
+#if EV_USE_IOCP
+# include "ev_iocp.c"
+#endif
+#if EV_USE_PORT
+# include "ev_port.c"
+#endif
+#if EV_USE_KQUEUE
+# include "ev_kqueue.c"
+#endif
+#if EV_USE_EPOLL
+# include "ev_epoll.c"
+#endif
+#if EV_USE_POLL
+# include "ev_poll.c"
+#endif
+#if EV_USE_SELECT
+# include "ev_select.c"
+#endif
+
+ecb_cold int
+ev_version_major (void) EV_NOEXCEPT
+{
+ return EV_VERSION_MAJOR;
+}
+
+ecb_cold int
+ev_version_minor (void) EV_NOEXCEPT
+{
+ return EV_VERSION_MINOR;
+}
+
+/* return true if we are running with elevated privileges and should ignore env variables */
+inline_size ecb_cold int
+enable_secure (void)
+{
+#ifdef _WIN32
+ return 0;
+#else
+ return getuid () != geteuid ()
+ || getgid () != getegid ();
+#endif
+}
+
+ecb_cold
+unsigned int
+ev_supported_backends (void) EV_NOEXCEPT
+{
+ unsigned int flags = 0;
+
+ if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
+ if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
+ if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
+ if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
+ if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
+
+ return flags;
+}
+
+ecb_cold
+unsigned int
+ev_recommended_backends (void) EV_NOEXCEPT
+{
+ unsigned int flags = ev_supported_backends ();
+
+#ifndef __NetBSD__
+ /* kqueue is borked on everything but netbsd apparently */
+ /* it usually doesn't work correctly on anything but sockets and pipes */
+ flags &= ~EVBACKEND_KQUEUE;
+#endif
+#ifdef __APPLE__
+ /* only select works correctly on that "unix-certified" platform */
+ flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
+ flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
+#endif
+#ifdef __FreeBSD__
+ flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
+#endif
+
+ return flags;
+}
+
+ecb_cold
+unsigned int
+ev_embeddable_backends (void) EV_NOEXCEPT
+{
+ int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
+
+ /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
+ if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
+ flags &= ~EVBACKEND_EPOLL;
+
+ return flags;
+}
+
+unsigned int
+ev_backend (EV_P) EV_NOEXCEPT
+{
+ return backend;
+}
+
+#if EV_FEATURE_API
+unsigned int
+ev_iteration (EV_P) EV_NOEXCEPT
+{
+ return loop_count;
+}
+
+unsigned int
+ev_depth (EV_P) EV_NOEXCEPT
+{
+ return loop_depth;
+}
+
+void
+ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
+{
+ io_blocktime = interval;
+}
+
+void
+ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
+{
+ timeout_blocktime = interval;
+}
+
+void
+ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
+{
+ userdata = data;
+}
+
+void *
+ev_userdata (EV_P) EV_NOEXCEPT
+{
+ return userdata;
+}
+
+void
+ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
+{
+ invoke_cb = invoke_pending_cb;
+}
+
+void
+ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
+{
+ release_cb = release;
+ acquire_cb = acquire;
+}
+#endif
+
+/* initialise a loop structure, must be zero-initialised */
+noinline ecb_cold
+static void
+loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
+{
+ if (!backend)
+ {
+ origflags = flags;
+
+#if EV_USE_REALTIME
+ if (!have_realtime)
+ {
+ struct timespec ts;
+
+ if (!clock_gettime (CLOCK_REALTIME, &ts))
+ have_realtime = 1;
+ }
+#endif
+
+#if EV_USE_MONOTONIC
+ if (!have_monotonic)
+ {
+ struct timespec ts;
+
+ if (!clock_gettime (CLOCK_MONOTONIC, &ts))
+ have_monotonic = 1;
+ }
+#endif
+
+ /* pid check not overridable via env */
+#ifndef _WIN32
+ if (flags & EVFLAG_FORKCHECK)
+ curpid = getpid ();
+#endif
+
+ if (!(flags & EVFLAG_NOENV)
+ && !enable_secure ()
+ && getenv ("LIBEV_FLAGS"))
+ flags = atoi (getenv ("LIBEV_FLAGS"));
+
+ ev_rt_now = ev_time ();
+ mn_now = get_clock ();
+ now_floor = mn_now;
+ rtmn_diff = ev_rt_now - mn_now;
+#if EV_FEATURE_API
+ invoke_cb = ev_invoke_pending;
+#endif
+
+ io_blocktime = 0.;
+ timeout_blocktime = 0.;
+ backend = 0;
+ backend_fd = -1;
+ sig_pending = 0;
+#if EV_ASYNC_ENABLE
+ async_pending = 0;
+#endif
+ pipe_write_skipped = 0;
+ pipe_write_wanted = 0;
+ evpipe [0] = -1;
+ evpipe [1] = -1;
+#if EV_USE_INOTIFY
+ fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
+#endif
+#if EV_USE_SIGNALFD
+ sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
+#endif
+
+ if (!(flags & EVBACKEND_MASK))
+ flags |= ev_recommended_backends ();
+
+#if EV_USE_IOCP
+ if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
+#endif
+#if EV_USE_PORT
+ if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
+#endif
+#if EV_USE_KQUEUE
+ if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
+#endif
+#if EV_USE_EPOLL
+ if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
+#endif
+#if EV_USE_POLL
+ if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
+#endif
+#if EV_USE_SELECT
+ if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
+#endif
+
+ ev_prepare_init (&pending_w, pendingcb);
+
+#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
+ ev_init (&pipe_w, pipecb);
+ ev_set_priority (&pipe_w, EV_MAXPRI);
+#endif
+ }
+}
+
+/* free up a loop structure */
+ecb_cold
+void
+ev_loop_destroy (EV_P)
+{
+ int i;
+
+#if EV_MULTIPLICITY
+ /* mimic free (0) */
+ if (!EV_A)
+ return;
+#endif
+
+#if EV_CLEANUP_ENABLE
+ /* queue cleanup watchers (and execute them) */
+ if (expect_false (cleanupcnt))
+ {
+ queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
+ EV_INVOKE_PENDING;
+ }
+#endif
+
+#if EV_CHILD_ENABLE
+ if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
+ {
+ ev_ref (EV_A); /* child watcher */
+ ev_signal_stop (EV_A_ &childev);
+ }
+#endif
+
+ if (ev_is_active (&pipe_w))
+ {
+ /*ev_ref (EV_A);*/
+ /*ev_io_stop (EV_A_ &pipe_w);*/
+
+ if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
+ if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
+ }
+
+#if EV_USE_SIGNALFD
+ if (ev_is_active (&sigfd_w))
+ close (sigfd);
+#endif
+
+#if EV_USE_INOTIFY
+ if (fs_fd >= 0)
+ close (fs_fd);
+#endif
+
+ if (backend_fd >= 0)
+ close (backend_fd);
+
+#if EV_USE_IOCP
+ if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
+#endif
+#if EV_USE_PORT
+ if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
+#endif
+#if EV_USE_KQUEUE
+ if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
+#endif
+#if EV_USE_EPOLL
+ if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
+#endif
+#if EV_USE_POLL
+ if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
+#endif
+#if EV_USE_SELECT
+ if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
+#endif
+
+ for (i = NUMPRI; i--; )
+ {
+ array_free (pending, [i]);
+#if EV_IDLE_ENABLE
+ array_free (idle, [i]);
+#endif
+ }
+
+ ev_free (anfds); anfds = 0; anfdmax = 0;
+
+ /* have to use the microsoft-never-gets-it-right macro */
+ array_free (rfeed, EMPTY);
+ array_free (fdchange, EMPTY);
+ array_free (timer, EMPTY);
+#if EV_PERIODIC_ENABLE
+ array_free (periodic, EMPTY);
+#endif
+#if EV_FORK_ENABLE
+ array_free (fork, EMPTY);
+#endif
+#if EV_CLEANUP_ENABLE
+ array_free (cleanup, EMPTY);
+#endif
+ array_free (prepare, EMPTY);
+ array_free (check, EMPTY);
+#if EV_ASYNC_ENABLE
+ array_free (async, EMPTY);
+#endif
+
+ backend = 0;
+
+#if EV_MULTIPLICITY
+ if (ev_is_default_loop (EV_A))
+#endif
+ ev_default_loop_ptr = 0;
+#if EV_MULTIPLICITY
+ else
+ ev_free (EV_A);
+#endif
+}
+
+#if EV_USE_INOTIFY
+inline_size void infy_fork (EV_P);
+#endif
+
+inline_size void
+loop_fork (EV_P)
+{
+#if EV_USE_PORT
+ if (backend == EVBACKEND_PORT ) port_fork (EV_A);
+#endif
+#if EV_USE_KQUEUE
+ if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
+#endif
+#if EV_USE_EPOLL
+ if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
+#endif
+#if EV_USE_INOTIFY
+ infy_fork (EV_A);
+#endif
+
+#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
+ if (ev_is_active (&pipe_w) && postfork != 2)
+ {
+ /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
+
+ ev_ref (EV_A);
+ ev_io_stop (EV_A_ &pipe_w);
+
+ if (evpipe [0] >= 0)
+ EV_WIN32_CLOSE_FD (evpipe [0]);
+
+ evpipe_init (EV_A);
+ /* iterate over everything, in case we missed something before */
+ ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
+ }
+#endif
+
+ postfork = 0;
+}
+
+#if EV_MULTIPLICITY
+
+ecb_cold
+struct ev_loop *
+ev_loop_new (unsigned int flags) EV_NOEXCEPT
+{
+ EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
+
+ memset (EV_A, 0, sizeof (struct ev_loop));
+ loop_init (EV_A_ flags);
+
+ if (ev_backend (EV_A))
+ return EV_A;
+
+ ev_free (EV_A);
+ return 0;
+}
+
+#endif /* multiplicity */
+
+#if EV_VERIFY
+noinline ecb_cold
+static void
+verify_watcher (EV_P_ W w)
+{
+ assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
+
+ if (w->pending)
+ assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
+}
+
+noinline ecb_cold
+static void
+verify_heap (EV_P_ ANHE *heap, int N)
+{
+ int i;
+
+ for (i = HEAP0; i < N + HEAP0; ++i)
+ {
+ assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
+ assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
+ assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
+
+ verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
+ }
+}
+
+noinline ecb_cold
+static void
+array_verify (EV_P_ W *ws, int cnt)
+{
+ while (cnt--)
+ {
+ assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
+ verify_watcher (EV_A_ ws [cnt]);
+ }
+}
+#endif
+
+#if EV_FEATURE_API
+void ecb_cold
+ev_verify (EV_P) EV_NOEXCEPT
+{
+#if EV_VERIFY
+ int i;
+ WL w, w2;
+
+ assert (activecnt >= -1);
+
+ assert (fdchangemax >= fdchangecnt);
+ for (i = 0; i < fdchangecnt; ++i)
+ assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
+
+ assert (anfdmax >= 0);
+ for (i = 0; i < anfdmax; ++i)
+ {
+ int j = 0;
+
+ for (w = w2 = anfds [i].head; w; w = w->next)
+ {
+ verify_watcher (EV_A_ (W)w);
+
+ if (j++ & 1)
+ {
+ assert (("libev: io watcher list contains a loop", w != w2));
+ w2 = w2->next;
+ }
+
+ assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
+ assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
+ }
+ }
+
+ assert (timermax >= timercnt);
+ verify_heap (EV_A_ timers, timercnt);
+
+#if EV_PERIODIC_ENABLE
+ assert (periodicmax >= periodiccnt);
+ verify_heap (EV_A_ periodics, periodiccnt);
+#endif
+
+ for (i = NUMPRI; i--; )
+ {
+ assert (pendingmax [i] >= pendingcnt [i]);
+#if EV_IDLE_ENABLE
+ assert (idleall >= 0);
+ assert (idlemax [i] >= idlecnt [i]);
+ array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
+#endif
+ }
+
+#if EV_FORK_ENABLE
+ assert (forkmax >= forkcnt);
+ array_verify (EV_A_ (W *)forks, forkcnt);
+#endif
+
+#if EV_CLEANUP_ENABLE
+ assert (cleanupmax >= cleanupcnt);
+ array_verify (EV_A_ (W *)cleanups, cleanupcnt);
+#endif
+
+#if EV_ASYNC_ENABLE
+ assert (asyncmax >= asynccnt);
+ array_verify (EV_A_ (W *)asyncs, asynccnt);
+#endif
+
+#if EV_PREPARE_ENABLE
+ assert (preparemax >= preparecnt);
+ array_verify (EV_A_ (W *)prepares, preparecnt);
+#endif
+
+#if EV_CHECK_ENABLE
+ assert (checkmax >= checkcnt);
+ array_verify (EV_A_ (W *)checks, checkcnt);
+#endif
+
+# if 0
+#if EV_CHILD_ENABLE
+ for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
+ for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
+#endif
+# endif
+#endif
+}
+#endif
+
+#if EV_MULTIPLICITY
+ecb_cold
+struct ev_loop *
+#else
+int
+#endif
+ev_default_loop (unsigned int flags) EV_NOEXCEPT
+{
+ if (!ev_default_loop_ptr)
+ {
+#if EV_MULTIPLICITY
+ EV_P = ev_default_loop_ptr = &default_loop_struct;
+#else
+ ev_default_loop_ptr = 1;
+#endif
+
+ loop_init (EV_A_ flags);
+
+ if (ev_backend (EV_A))
+ {
+#if EV_CHILD_ENABLE
+ ev_signal_init (&childev, childcb, SIGCHLD);
+ ev_set_priority (&childev, EV_MAXPRI);
+ ev_signal_start (EV_A_ &childev);
+ ev_unref (EV_A); /* child watcher should not keep loop alive */
+#endif
+ }
+ else
+ ev_default_loop_ptr = 0;
+ }
+
+ return ev_default_loop_ptr;
+}
+
+void
+ev_loop_fork (EV_P) EV_NOEXCEPT
+{
+ postfork = 1;
+}
+
+/*****************************************************************************/
+
+void
+ev_invoke (EV_P_ void *w, int revents)
+{
+ EV_CB_INVOKE ((W)w, revents);
+}
+
+unsigned int
+ev_pending_count (EV_P) EV_NOEXCEPT
+{
+ int pri;
+ unsigned int count = 0;
+
+ for (pri = NUMPRI; pri--; )
+ count += pendingcnt [pri];
+
+ return count;
+}
+
+noinline
+void
+ev_invoke_pending (EV_P)
+{
+ pendingpri = NUMPRI;
+
+ do
+ {
+ --pendingpri;
+
+ /* pendingpri possibly gets modified in the inner loop */
+ while (pendingcnt [pendingpri])
+ {
+ ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
+
+ p->w->pending = 0;
+ EV_CB_INVOKE (p->w, p->events);
+ EV_FREQUENT_CHECK;
+ }
+ }
+ while (pendingpri);
+}
+
+#if EV_IDLE_ENABLE
+/* make idle watchers pending. this handles the "call-idle */
+/* only when higher priorities are idle" logic */
+inline_size void
+idle_reify (EV_P)
+{
+ if (expect_false (idleall))
+ {
+ int pri;
+
+ for (pri = NUMPRI; pri--; )
+ {
+ if (pendingcnt [pri])
+ break;
+
+ if (idlecnt [pri])
+ {
+ queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
+ break;
+ }
+ }
+ }
+}
+#endif
+
+/* make timers pending */
+inline_size void
+timers_reify (EV_P)
+{
+ EV_FREQUENT_CHECK;
+
+ if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
+ {
+ do
+ {
+ ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
+
+ /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
+
+ /* first reschedule or stop timer */
+ if (w->repeat)
+ {
+ ev_at (w) += w->repeat;
+ if (ev_at (w) < mn_now)
+ ev_at (w) = mn_now;
+
+ assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
+
+ ANHE_at_cache (timers [HEAP0]);
+ downheap (timers, timercnt, HEAP0);
+ }
+ else
+ ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
+
+ EV_FREQUENT_CHECK;
+ feed_reverse (EV_A_ (W)w);
+ }
+ while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
+
+ feed_reverse_done (EV_A_ EV_TIMER);
+ }
+}
+
+#if EV_PERIODIC_ENABLE
+
+noinline
+static void
+periodic_recalc (EV_P_ ev_periodic *w)
+{
+ ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
+ ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
+
+ /* the above almost always errs on the low side */
+ while (at <= ev_rt_now)
+ {
+ ev_tstamp nat = at + w->interval;
+
+ /* when resolution fails us, we use ev_rt_now */
+ if (expect_false (nat == at))
+ {
+ at = ev_rt_now;
+ break;
+ }
+
+ at = nat;
+ }
+
+ ev_at (w) = at;
+}
+
+/* make periodics pending */
+inline_size void
+periodics_reify (EV_P)
+{
+ EV_FREQUENT_CHECK;
+
+ while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
+ {
+ do
+ {
+ ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
+
+ /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
+
+ /* first reschedule or stop timer */
+ if (w->reschedule_cb)
+ {
+ ev_at (w) = w->reschedule_cb (w, ev_rt_now);
+
+ assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
+
+ ANHE_at_cache (periodics [HEAP0]);
+ downheap (periodics, periodiccnt, HEAP0);
+ }
+ else if (w->interval)
+ {
+ periodic_recalc (EV_A_ w);
+ ANHE_at_cache (periodics [HEAP0]);
+ downheap (periodics, periodiccnt, HEAP0);
+ }
+ else
+ ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
+
+ EV_FREQUENT_CHECK;
+ feed_reverse (EV_A_ (W)w);
+ }
+ while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
+
+ feed_reverse_done (EV_A_ EV_PERIODIC);
+ }
+}
+
+/* simply recalculate all periodics */
+/* TODO: maybe ensure that at least one event happens when jumping forward? */
+noinline ecb_cold
+static void
+periodics_reschedule (EV_P)
+{
+ int i;
+
+ /* adjust periodics after time jump */
+ for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
+ {
+ ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
+
+ if (w->reschedule_cb)
+ ev_at (w) = w->reschedule_cb (w, ev_rt_now);
+ else if (w->interval)
+ periodic_recalc (EV_A_ w);
+
+ ANHE_at_cache (periodics [i]);
+ }
+
+ reheap (periodics, periodiccnt);
+}
+#endif
+
+/* adjust all timers by a given offset */
+noinline ecb_cold
+static void
+timers_reschedule (EV_P_ ev_tstamp adjust)
+{
+ int i;
+
+ for (i = 0; i < timercnt; ++i)
+ {
+ ANHE *he = timers + i + HEAP0;
+ ANHE_w (*he)->at += adjust;
+ ANHE_at_cache (*he);
+ }
+}
+
+/* fetch new monotonic and realtime times from the kernel */
+/* also detect if there was a timejump, and act accordingly */
+inline_speed void
+time_update (EV_P_ ev_tstamp max_block)
+{
+#if EV_USE_MONOTONIC
+ if (expect_true (have_monotonic))
+ {
+ int i;
+ ev_tstamp odiff = rtmn_diff;
+
+ mn_now = get_clock ();
+
+ /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
+ /* interpolate in the meantime */
+ if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
+ {
+ ev_rt_now = rtmn_diff + mn_now;
+ return;
+ }
+
+ now_floor = mn_now;
+ ev_rt_now = ev_time ();
+
+ /* loop a few times, before making important decisions.
+ * on the choice of "4": one iteration isn't enough,
+ * in case we get preempted during the calls to
+ * ev_time and get_clock. a second call is almost guaranteed
+ * to succeed in that case, though. and looping a few more times
+ * doesn't hurt either as we only do this on time-jumps or
+ * in the unlikely event of having been preempted here.
+ */
+ for (i = 4; --i; )
+ {
+ ev_tstamp diff;
+ rtmn_diff = ev_rt_now - mn_now;
+
+ diff = odiff - rtmn_diff;
+
+ if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
+ return; /* all is well */
+
+ ev_rt_now = ev_time ();
+ mn_now = get_clock ();
+ now_floor = mn_now;
+ }
+
+ /* no timer adjustment, as the monotonic clock doesn't jump */
+ /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
+# if EV_PERIODIC_ENABLE
+ periodics_reschedule (EV_A);
+# endif
+ }
+ else
+#endif
+ {
+ ev_rt_now = ev_time ();
+
+ if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
+ {
+ /* adjust timers. this is easy, as the offset is the same for all of them */
+ timers_reschedule (EV_A_ ev_rt_now - mn_now);
+#if EV_PERIODIC_ENABLE
+ periodics_reschedule (EV_A);
+#endif
+ }
+
+ mn_now = ev_rt_now;
+ }
+}
+
+int
+ev_run (EV_P_ int flags)
+{
+#if EV_FEATURE_API
+ ++loop_depth;
+#endif
+
+ assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
+
+ loop_done = EVBREAK_CANCEL;
+
+ EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
+
+ do
+ {
+#if EV_VERIFY >= 2
+ ev_verify (EV_A);
+#endif
+
+#ifndef _WIN32
+ if (expect_false (curpid)) /* penalise the forking check even more */
+ if (expect_false (getpid () != curpid))
+ {
+ curpid = getpid ();
+ postfork = 1;
+ }
+#endif
+
+#if EV_FORK_ENABLE
+ /* we might have forked, so queue fork handlers */
+ if (expect_false (postfork))
+ if (forkcnt)
+ {
+ queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
+ EV_INVOKE_PENDING;
+ }
+#endif
+
+#if EV_PREPARE_ENABLE
+ /* queue prepare watchers (and execute them) */
+ if (expect_false (preparecnt))
+ {
+ queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
+ EV_INVOKE_PENDING;
+ }
+#endif
+
+ if (expect_false (loop_done))
+ break;
+
+ /* we might have forked, so reify kernel state if necessary */
+ if (expect_false (postfork))
+ loop_fork (EV_A);
+
+ /* update fd-related kernel structures */
+ fd_reify (EV_A);
+
+ /* calculate blocking time */
+ {
+ ev_tstamp waittime = 0.;
+ ev_tstamp sleeptime = 0.;
+
+ /* remember old timestamp for io_blocktime calculation */
+ ev_tstamp prev_mn_now = mn_now;
+
+ /* update time to cancel out callback processing overhead */
+ time_update (EV_A_ 1e100);
+
+ /* from now on, we want a pipe-wake-up */
+ pipe_write_wanted = 1;
+
+ ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
+
+ if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
+ {
+ waittime = MAX_BLOCKTIME;
+
+ if (timercnt)
+ {
+ ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
+ if (waittime > to) waittime = to;
+ }
+
+#if EV_PERIODIC_ENABLE
+ if (periodiccnt)
+ {
+ ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
+ if (waittime > to) waittime = to;
+ }
+#endif
+
+ /* don't let timeouts decrease the waittime below timeout_blocktime */
+ if (expect_false (waittime < timeout_blocktime))
+ waittime = timeout_blocktime;
+
+ /* at this point, we NEED to wait, so we have to ensure */
+ /* to pass a minimum nonzero value to the backend */
+ if (expect_false (waittime < backend_mintime))
+ waittime = backend_mintime;
+
+ /* extra check because io_blocktime is commonly 0 */
+ if (expect_false (io_blocktime))
+ {
+ sleeptime = io_blocktime - (mn_now - prev_mn_now);
+
+ if (sleeptime > waittime - backend_mintime)
+ sleeptime = waittime - backend_mintime;
+
+ if (expect_true (sleeptime > 0.))
+ {
+ ev_sleep (sleeptime);
+ waittime -= sleeptime;
+ }
+ }
+ }
+
+#if EV_FEATURE_API
+ ++loop_count;
+#endif
+ assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
+ backend_poll (EV_A_ waittime);
+ assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
+
+ pipe_write_wanted = 0; /* just an optimisation, no fence needed */
+
+ ECB_MEMORY_FENCE_ACQUIRE;
+ if (pipe_write_skipped)
+ {
+ assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
+ ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
+ }
+
+
+ /* update ev_rt_now, do magic */
+ time_update (EV_A_ waittime + sleeptime);
+ }
+
+ /* queue pending timers and reschedule them */
+ timers_reify (EV_A); /* relative timers called last */
+#if EV_PERIODIC_ENABLE
+ periodics_reify (EV_A); /* absolute timers called first */
+#endif
+
+#if EV_IDLE_ENABLE
+ /* queue idle watchers unless other events are pending */
+ idle_reify (EV_A);
+#endif
+
+#if EV_CHECK_ENABLE
+ /* queue check watchers, to be executed first */
+ if (expect_false (checkcnt))
+ queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
+#endif
+
+ EV_INVOKE_PENDING;
+ }
+ while (expect_true (
+ activecnt
+ && !loop_done
+ && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
+ ));
+
+ if (loop_done == EVBREAK_ONE)
+ loop_done = EVBREAK_CANCEL;
+
+#if EV_FEATURE_API
+ --loop_depth;
+#endif
+
+ return activecnt;
+}
+
+void
+ev_break (EV_P_ int how) EV_NOEXCEPT
+{
+ loop_done = how;
+}
+
+void
+ev_ref (EV_P) EV_NOEXCEPT
+{
+ ++activecnt;
+}
+
+void
+ev_unref (EV_P) EV_NOEXCEPT
+{
+ --activecnt;
+}
+
+void
+ev_now_update (EV_P) EV_NOEXCEPT
+{
+ time_update (EV_A_ 1e100);
+}
+
+void
+ev_suspend (EV_P) EV_NOEXCEPT
+{
+ ev_now_update (EV_A);
+}
+
+void
+ev_resume (EV_P) EV_NOEXCEPT
+{
+ ev_tstamp mn_prev = mn_now;
+
+ ev_now_update (EV_A);
+ timers_reschedule (EV_A_ mn_now - mn_prev);
+#if EV_PERIODIC_ENABLE
+ /* TODO: really do this? */
+ periodics_reschedule (EV_A);
+#endif
+}
+
+/*****************************************************************************/
+/* singly-linked list management, used when the expected list length is short */
+
+inline_size void
+wlist_add (WL *head, WL elem)
+{
+ elem->next = *head;
+ *head = elem;
+}
+
+inline_size void
+wlist_del (WL *head, WL elem)
+{
+ while (*head)
+ {
+ if (expect_true (*head == elem))
+ {
+ *head = elem->next;
+ break;
+ }
+
+ head = &(*head)->next;
+ }
+}
+
+/* internal, faster, version of ev_clear_pending */
+inline_speed void
+clear_pending (EV_P_ W w)
+{
+ if (w->pending)
+ {
+ pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
+ w->pending = 0;
+ }
+}
+
+int
+ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
+{
+ W w_ = (W)w;
+ int pending = w_->pending;
+
+ if (expect_true (pending))
+ {
+ ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
+ p->w = (W)&pending_w;
+ w_->pending = 0;
+ return p->events;
+ }
+ else
+ return 0;
+}
+
+inline_size void
+pri_adjust (EV_P_ W w)
+{
+ int pri = ev_priority (w);
+ pri = pri < EV_MINPRI ? EV_MINPRI : pri;
+ pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
+ ev_set_priority (w, pri);
+}
+
+inline_speed void
+ev_start (EV_P_ W w, int active)
+{
+ pri_adjust (EV_A_ w);
+ w->active = active;
+ ev_ref (EV_A);
+}
+
+inline_size void
+ev_stop (EV_P_ W w)
+{
+ ev_unref (EV_A);
+ w->active = 0;
+}
+
+/*****************************************************************************/
+
+noinline
+void
+ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
+{
+ int fd = w->fd;
+
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ assert (("libev: ev_io_start called with negative fd", fd >= 0));
+ assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, 1);
+ array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
+ wlist_add (&anfds[fd].head, (WL)w);
+
+ /* common bug, apparently */
+ assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
+
+ fd_change (EV_A_ fd, w->events & (EV__IOFDSET | EV_ANFD_REIFY));
+ w->events &= ~EV__IOFDSET;
+
+ EV_FREQUENT_CHECK;
+}
+
+noinline
+void
+ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
+
+ EV_FREQUENT_CHECK;
+
+ wlist_del (&anfds[w->fd].head, (WL)w);
+ ev_stop (EV_A_ (W)w);
+
+ fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
+
+ EV_FREQUENT_CHECK;
+}
+
+noinline
+void
+ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ ev_at (w) += mn_now;
+
+ assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
+
+ EV_FREQUENT_CHECK;
+
+ ++timercnt;
+ ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
+ array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
+ ANHE_w (timers [ev_active (w)]) = (WT)w;
+ ANHE_at_cache (timers [ev_active (w)]);
+ upheap (timers, ev_active (w));
+
+ EV_FREQUENT_CHECK;
+
+ /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
+}
+
+noinline
+void
+ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
+
+ --timercnt;
+
+ if (expect_true (active < timercnt + HEAP0))
+ {
+ timers [active] = timers [timercnt + HEAP0];
+ adjustheap (timers, timercnt, active);
+ }
+ }
+
+ ev_at (w) -= mn_now;
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+
+noinline
+void
+ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
+{
+ EV_FREQUENT_CHECK;
+
+ clear_pending (EV_A_ (W)w);
+
+ if (ev_is_active (w))
+ {
+ if (w->repeat)
+ {
+ ev_at (w) = mn_now + w->repeat;
+ ANHE_at_cache (timers [ev_active (w)]);
+ adjustheap (timers, timercnt, ev_active (w));
+ }
+ else
+ ev_timer_stop (EV_A_ w);
+ }
+ else if (w->repeat)
+ {
+ ev_at (w) = w->repeat;
+ ev_timer_start (EV_A_ w);
+ }
+
+ EV_FREQUENT_CHECK;
+}
+
+ev_tstamp
+ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
+{
+ return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
+}
+
+#if EV_PERIODIC_ENABLE
+noinline
+void
+ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ if (w->reschedule_cb)
+ ev_at (w) = w->reschedule_cb (w, ev_rt_now);
+ else if (w->interval)
+ {
+ assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
+ periodic_recalc (EV_A_ w);
+ }
+ else
+ ev_at (w) = w->offset;
+
+ EV_FREQUENT_CHECK;
+
+ ++periodiccnt;
+ ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
+ array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
+ ANHE_w (periodics [ev_active (w)]) = (WT)w;
+ ANHE_at_cache (periodics [ev_active (w)]);
+ upheap (periodics, ev_active (w));
+
+ EV_FREQUENT_CHECK;
+
+ /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
+}
+
+noinline
+void
+ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
+
+ --periodiccnt;
+
+ if (expect_true (active < periodiccnt + HEAP0))
+ {
+ periodics [active] = periodics [periodiccnt + HEAP0];
+ adjustheap (periodics, periodiccnt, active);
+ }
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+
+noinline
+void
+ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
+{
+ /* TODO: use adjustheap and recalculation */
+ ev_periodic_stop (EV_A_ w);
+ ev_periodic_start (EV_A_ w);
+}
+#endif
+
+#ifndef SA_RESTART
+# define SA_RESTART 0
+#endif
+
+#if EV_SIGNAL_ENABLE
+
+noinline
+void
+ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
+
+#if EV_MULTIPLICITY
+ assert (("libev: a signal must not be attached to two different loops",
+ !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
+
+ signals [w->signum - 1].loop = EV_A;
+ ECB_MEMORY_FENCE_RELEASE;
+#endif
+
+ EV_FREQUENT_CHECK;
+
+#if EV_USE_SIGNALFD
+ if (sigfd == -2)
+ {
+ sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
+ if (sigfd < 0 && errno == EINVAL)
+ sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
+
+ if (sigfd >= 0)
+ {
+ fd_intern (sigfd); /* doing it twice will not hurt */
+
+ sigemptyset (&sigfd_set);
+
+ ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
+ ev_set_priority (&sigfd_w, EV_MAXPRI);
+ ev_io_start (EV_A_ &sigfd_w);
+ ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
+ }
+ }
+
+ if (sigfd >= 0)
+ {
+ /* TODO: check .head */
+ sigaddset (&sigfd_set, w->signum);
+ sigprocmask (SIG_BLOCK, &sigfd_set, 0);
+
+ signalfd (sigfd, &sigfd_set, 0);
+ }
+#endif
+
+ ev_start (EV_A_ (W)w, 1);
+ wlist_add (&signals [w->signum - 1].head, (WL)w);
+
+ if (!((WL)w)->next)
+# if EV_USE_SIGNALFD
+ if (sigfd < 0) /*TODO*/
+# endif
+ {
+# ifdef _WIN32
+ evpipe_init (EV_A);
+
+ signal (w->signum, ev_sighandler);
+# else
+ struct sigaction sa;
+
+ evpipe_init (EV_A);
+
+ sa.sa_handler = ev_sighandler;
+ sigfillset (&sa.sa_mask);
+ sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
+ sigaction (w->signum, &sa, 0);
+
+ if (origflags & EVFLAG_NOSIGMASK)
+ {
+ sigemptyset (&sa.sa_mask);
+ sigaddset (&sa.sa_mask, w->signum);
+ sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
+ }
+#endif
+ }
+
+ EV_FREQUENT_CHECK;
+}
+
+noinline
+void
+ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ wlist_del (&signals [w->signum - 1].head, (WL)w);
+ ev_stop (EV_A_ (W)w);
+
+ if (!signals [w->signum - 1].head)
+ {
+#if EV_MULTIPLICITY
+ signals [w->signum - 1].loop = 0; /* unattach from signal */
+#endif
+#if EV_USE_SIGNALFD
+ if (sigfd >= 0)
+ {
+ sigset_t ss;
+
+ sigemptyset (&ss);
+ sigaddset (&ss, w->signum);
+ sigdelset (&sigfd_set, w->signum);
+
+ signalfd (sigfd, &sigfd_set, 0);
+ sigprocmask (SIG_UNBLOCK, &ss, 0);
+ }
+ else
+#endif
+ signal (w->signum, SIG_DFL);
+ }
+
+ EV_FREQUENT_CHECK;
+}
+
+#endif
+
+#if EV_CHILD_ENABLE
+
+void
+ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
+{
+#if EV_MULTIPLICITY
+ assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
+#endif
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, 1);
+ wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+
+#endif
+
+#if EV_STAT_ENABLE
+
+# ifdef _WIN32
+# undef lstat
+# define lstat(a,b) _stati64 (a,b)
+# endif
+
+#define DEF_STAT_INTERVAL 5.0074891
+#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
+#define MIN_STAT_INTERVAL 0.1074891
+
+noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
+
+#if EV_USE_INOTIFY
+
+/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
+# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
+
+noinline
+static void
+infy_add (EV_P_ ev_stat *w)
+{
+ w->wd = inotify_add_watch (fs_fd, w->path,
+ IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
+ | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
+ | IN_DONT_FOLLOW | IN_MASK_ADD);
+
+ if (w->wd >= 0)
+ {
+ struct statfs sfs;
+
+ /* now local changes will be tracked by inotify, but remote changes won't */
+ /* unless the filesystem is known to be local, we therefore still poll */
+ /* also do poll on <2.6.25, but with normal frequency */
+
+ if (!fs_2625)
+ w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
+ else if (!statfs (w->path, &sfs)
+ && (sfs.f_type == 0x1373 /* devfs */
+ || sfs.f_type == 0x4006 /* fat */
+ || sfs.f_type == 0x4d44 /* msdos */
+ || sfs.f_type == 0xEF53 /* ext2/3 */
+ || sfs.f_type == 0x72b6 /* jffs2 */
+ || sfs.f_type == 0x858458f6 /* ramfs */
+ || sfs.f_type == 0x5346544e /* ntfs */
+ || sfs.f_type == 0x3153464a /* jfs */
+ || sfs.f_type == 0x9123683e /* btrfs */
+ || sfs.f_type == 0x52654973 /* reiser3 */
+ || sfs.f_type == 0x01021994 /* tmpfs */
+ || sfs.f_type == 0x58465342 /* xfs */))
+ w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
+ else
+ w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
+ }
+ else
+ {
+ /* can't use inotify, continue to stat */
+ w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
+
+ /* if path is not there, monitor some parent directory for speedup hints */
+ /* note that exceeding the hardcoded path limit is not a correctness issue, */
+ /* but an efficiency issue only */
+ if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
+ {
+ char path [4096];
+ strcpy (path, w->path);
+
+ do
+ {
+ int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
+ | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
+
+ char *pend = strrchr (path, '/');
+
+ if (!pend || pend == path)
+ break;
+
+ *pend = 0;
+ w->wd = inotify_add_watch (fs_fd, path, mask);
+ }
+ while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
+ }
+ }
+
+ if (w->wd >= 0)
+ wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
+
+ /* now re-arm timer, if required */
+ if (ev_is_active (&w->timer)) ev_ref (EV_A);
+ ev_timer_again (EV_A_ &w->timer);
+ if (ev_is_active (&w->timer)) ev_unref (EV_A);
+}
+
+noinline
+static void
+infy_del (EV_P_ ev_stat *w)
+{
+ int slot;
+ int wd = w->wd;
+
+ if (wd < 0)
+ return;
+
+ w->wd = -2;
+ slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
+ wlist_del (&fs_hash [slot].head, (WL)w);
+
+ /* remove this watcher, if others are watching it, they will rearm */
+ inotify_rm_watch (fs_fd, wd);
+}
+
+noinline
+static void
+infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
+{
+ if (slot < 0)
+ /* overflow, need to check for all hash slots */
+ for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
+ infy_wd (EV_A_ slot, wd, ev);
+ else
+ {
+ WL w_;
+
+ for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
+ {
+ ev_stat *w = (ev_stat *)w_;
+ w_ = w_->next; /* lets us remove this watcher and all before it */
+
+ if (w->wd == wd || wd == -1)
+ {
+ if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
+ {
+ wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
+ w->wd = -1;
+ infy_add (EV_A_ w); /* re-add, no matter what */
+ }
+
+ stat_timer_cb (EV_A_ &w->timer, 0);
+ }
+ }
+ }
+}
+
+static void
+infy_cb (EV_P_ ev_io *w, int revents)
+{
+ char buf [EV_INOTIFY_BUFSIZE];
+ int ofs;
+ int len = read (fs_fd, buf, sizeof (buf));
+
+ for (ofs = 0; ofs < len; )
+ {
+ struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
+ infy_wd (EV_A_ ev->wd, ev->wd, ev);
+ ofs += sizeof (struct inotify_event) + ev->len;
+ }
+}
+
+inline_size ecb_cold
+void
+ev_check_2625 (EV_P)
+{
+ /* kernels < 2.6.25 are borked
+ * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
+ */
+ if (ev_linux_version () < 0x020619)
+ return;
+
+ fs_2625 = 1;
+}
+
+inline_size int
+infy_newfd (void)
+{
+#if defined IN_CLOEXEC && defined IN_NONBLOCK
+ int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
+ if (fd >= 0)
+ return fd;
+#endif
+ return inotify_init ();
+}
+
+inline_size void
+infy_init (EV_P)
+{
+ if (fs_fd != -2)
+ return;
+
+ fs_fd = -1;
+
+ ev_check_2625 (EV_A);
+
+ fs_fd = infy_newfd ();
+
+ if (fs_fd >= 0)
+ {
+ fd_intern (fs_fd);
+ ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
+ ev_set_priority (&fs_w, EV_MAXPRI);
+ ev_io_start (EV_A_ &fs_w);
+ ev_unref (EV_A);
+ }
+}
+
+inline_size void
+infy_fork (EV_P)
+{
+ int slot;
+
+ if (fs_fd < 0)
+ return;
+
+ ev_ref (EV_A);
+ ev_io_stop (EV_A_ &fs_w);
+ close (fs_fd);
+ fs_fd = infy_newfd ();
+
+ if (fs_fd >= 0)
+ {
+ fd_intern (fs_fd);
+ ev_io_set (&fs_w, fs_fd, EV_READ);
+ ev_io_start (EV_A_ &fs_w);
+ ev_unref (EV_A);
+ }
+
+ for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
+ {
+ WL w_ = fs_hash [slot].head;
+ fs_hash [slot].head = 0;
+
+ while (w_)
+ {
+ ev_stat *w = (ev_stat *)w_;
+ w_ = w_->next; /* lets us add this watcher */
+
+ w->wd = -1;
+
+ if (fs_fd >= 0)
+ infy_add (EV_A_ w); /* re-add, no matter what */
+ else
+ {
+ w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
+ if (ev_is_active (&w->timer)) ev_ref (EV_A);
+ ev_timer_again (EV_A_ &w->timer);
+ if (ev_is_active (&w->timer)) ev_unref (EV_A);
+ }
+ }
+ }
+}
+
+#endif
+
+#ifdef _WIN32
+# define EV_LSTAT(p,b) _stati64 (p, b)
+#else
+# define EV_LSTAT(p,b) lstat (p, b)
+#endif
+
+void
+ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
+{
+ if (lstat (w->path, &w->attr) < 0)
+ w->attr.st_nlink = 0;
+ else if (!w->attr.st_nlink)
+ w->attr.st_nlink = 1;
+}
+
+noinline
+static void
+stat_timer_cb (EV_P_ ev_timer *w_, int revents)
+{
+ ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
+
+ ev_statdata prev = w->attr;
+ ev_stat_stat (EV_A_ w);
+
+ /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
+ if (
+ prev.st_dev != w->attr.st_dev
+ || prev.st_ino != w->attr.st_ino
+ || prev.st_mode != w->attr.st_mode
+ || prev.st_nlink != w->attr.st_nlink
+ || prev.st_uid != w->attr.st_uid
+ || prev.st_gid != w->attr.st_gid
+ || prev.st_rdev != w->attr.st_rdev
+ || prev.st_size != w->attr.st_size
+ || prev.st_atime != w->attr.st_atime
+ || prev.st_mtime != w->attr.st_mtime
+ || prev.st_ctime != w->attr.st_ctime
+ ) {
+ /* we only update w->prev on actual differences */
+ /* in case we test more often than invoke the callback, */
+ /* to ensure that prev is always different to attr */
+ w->prev = prev;
+
+ #if EV_USE_INOTIFY
+ if (fs_fd >= 0)
+ {
+ infy_del (EV_A_ w);
+ infy_add (EV_A_ w);
+ ev_stat_stat (EV_A_ w); /* avoid race... */
+ }
+ #endif
+
+ ev_feed_event (EV_A_ w, EV_STAT);
+ }
+}
+
+void
+ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ ev_stat_stat (EV_A_ w);
+
+ if (w->interval < MIN_STAT_INTERVAL && w->interval)
+ w->interval = MIN_STAT_INTERVAL;
+
+ ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
+ ev_set_priority (&w->timer, ev_priority (w));
+
+#if EV_USE_INOTIFY
+ infy_init (EV_A);
+
+ if (fs_fd >= 0)
+ infy_add (EV_A_ w);
+ else
+#endif
+ {
+ ev_timer_again (EV_A_ &w->timer);
+ ev_unref (EV_A);
+ }
+
+ ev_start (EV_A_ (W)w, 1);
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+#if EV_USE_INOTIFY
+ infy_del (EV_A_ w);
+#endif
+
+ if (ev_is_active (&w->timer))
+ {
+ ev_ref (EV_A);
+ ev_timer_stop (EV_A_ &w->timer);
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_IDLE_ENABLE
+void
+ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ pri_adjust (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ++idlecnt [ABSPRI (w)];
+
+ ++idleall;
+ ev_start (EV_A_ (W)w, active);
+
+ array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
+ idles [ABSPRI (w)][active - 1] = w;
+ }
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
+ ev_active (idles [ABSPRI (w)][active - 1]) = active;
+
+ ev_stop (EV_A_ (W)w);
+ --idleall;
+ }
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_PREPARE_ENABLE
+void
+ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, ++preparecnt);
+ array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
+ prepares [preparecnt - 1] = w;
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ prepares [active - 1] = prepares [--preparecnt];
+ ev_active (prepares [active - 1]) = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_CHECK_ENABLE
+void
+ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, ++checkcnt);
+ array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
+ checks [checkcnt - 1] = w;
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ checks [active - 1] = checks [--checkcnt];
+ ev_active (checks [active - 1]) = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_EMBED_ENABLE
+noinline
+void
+ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
+{
+ ev_run (w->other, EVRUN_NOWAIT);
+}
+
+static void
+embed_io_cb (EV_P_ ev_io *io, int revents)
+{
+ ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
+
+ if (ev_cb (w))
+ ev_feed_event (EV_A_ (W)w, EV_EMBED);
+ else
+ ev_run (w->other, EVRUN_NOWAIT);
+}
+
+static void
+embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
+{
+ ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
+
+ {
+ EV_P = w->other;
+
+ while (fdchangecnt)
+ {
+ fd_reify (EV_A);
+ ev_run (EV_A_ EVRUN_NOWAIT);
+ }
+ }
+}
+
+static void
+embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
+{
+ ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
+
+ ev_embed_stop (EV_A_ w);
+
+ {
+ EV_P = w->other;
+
+ ev_loop_fork (EV_A);
+ ev_run (EV_A_ EVRUN_NOWAIT);
+ }
+
+ ev_embed_start (EV_A_ w);
+}
+
+#if 0
+static void
+embed_idle_cb (EV_P_ ev_idle *idle, int revents)
+{
+ ev_idle_stop (EV_A_ idle);
+}
+#endif
+
+void
+ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ {
+ EV_P = w->other;
+ assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
+ ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
+ }
+
+ EV_FREQUENT_CHECK;
+
+ ev_set_priority (&w->io, ev_priority (w));
+ ev_io_start (EV_A_ &w->io);
+
+ ev_prepare_init (&w->prepare, embed_prepare_cb);
+ ev_set_priority (&w->prepare, EV_MINPRI);
+ ev_prepare_start (EV_A_ &w->prepare);
+
+ ev_fork_init (&w->fork, embed_fork_cb);
+ ev_fork_start (EV_A_ &w->fork);
+
+ /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
+
+ ev_start (EV_A_ (W)w, 1);
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ ev_io_stop (EV_A_ &w->io);
+ ev_prepare_stop (EV_A_ &w->prepare);
+ ev_fork_stop (EV_A_ &w->fork);
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_FORK_ENABLE
+void
+ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, ++forkcnt);
+ array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
+ forks [forkcnt - 1] = w;
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ forks [active - 1] = forks [--forkcnt];
+ ev_active (forks [active - 1]) = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_CLEANUP_ENABLE
+void
+ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, ++cleanupcnt);
+ array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
+ cleanups [cleanupcnt - 1] = w;
+
+ /* cleanup watchers should never keep a refcount on the loop */
+ ev_unref (EV_A);
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+ ev_ref (EV_A);
+
+ {
+ int active = ev_active (w);
+
+ cleanups [active - 1] = cleanups [--cleanupcnt];
+ ev_active (cleanups [active - 1]) = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+#endif
+
+#if EV_ASYNC_ENABLE
+void
+ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ w->sent = 0;
+
+ evpipe_init (EV_A);
+
+ EV_FREQUENT_CHECK;
+
+ ev_start (EV_A_ (W)w, ++asynccnt);
+ array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
+ asyncs [asynccnt - 1] = w;
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
+{
+ clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ EV_FREQUENT_CHECK;
+
+ {
+ int active = ev_active (w);
+
+ asyncs [active - 1] = asyncs [--asynccnt];
+ ev_active (asyncs [active - 1]) = active;
+ }
+
+ ev_stop (EV_A_ (W)w);
+
+ EV_FREQUENT_CHECK;
+}
+
+void
+ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
+{
+ w->sent = 1;
+ evpipe_write (EV_A_ &async_pending);
+}
+#endif
+
+/*****************************************************************************/
+
+struct ev_once
+{
+ ev_io io;
+ ev_timer to;
+ void (*cb)(int revents, void *arg);
+ void *arg;
+};
+
+static void
+once_cb (EV_P_ struct ev_once *once, int revents)
+{
+ void (*cb)(int revents, void *arg) = once->cb;
+ void *arg = once->arg;
+
+ ev_io_stop (EV_A_ &once->io);
+ ev_timer_stop (EV_A_ &once->to);
+ ev_free (once);
+
+ cb (revents, arg);
+}
+
+static void
+once_cb_io (EV_P_ ev_io *w, int revents)
+{
+ struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
+
+ once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
+}
+
+static void
+once_cb_to (EV_P_ ev_timer *w, int revents)
+{
+ struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
+
+ once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
+}
+
+void
+ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
+{
+ struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
+
+ if (expect_false (!once))
+ {
+ cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
+ return;
+ }
+
+ once->cb = cb;
+ once->arg = arg;
+
+ ev_init (&once->io, once_cb_io);
+ if (fd >= 0)
+ {
+ ev_io_set (&once->io, fd, events);
+ ev_io_start (EV_A_ &once->io);
+ }
+
+ ev_init (&once->to, once_cb_to);
+ if (timeout >= 0.)
+ {
+ ev_timer_set (&once->to, timeout, 0.);
+ ev_timer_start (EV_A_ &once->to);
+ }
+}
+
+/*****************************************************************************/
+
+#if EV_WALK_ENABLE
+ecb_cold
+void
+ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
+{
+ int i, j;
+ ev_watcher_list *wl, *wn;
+
+ if (types & (EV_IO | EV_EMBED))
+ for (i = 0; i < anfdmax; ++i)
+ for (wl = anfds [i].head; wl; )
+ {
+ wn = wl->next;
+
+#if EV_EMBED_ENABLE
+ if (ev_cb ((ev_io *)wl) == embed_io_cb)
+ {
+ if (types & EV_EMBED)
+ cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
+ }
+ else
+#endif
+#if EV_USE_INOTIFY
+ if (ev_cb ((ev_io *)wl) == infy_cb)
+ ;
+ else
+#endif
+ if ((ev_io *)wl != &pipe_w)
+ if (types & EV_IO)
+ cb (EV_A_ EV_IO, wl);
+
+ wl = wn;
+ }
+
+ if (types & (EV_TIMER | EV_STAT))
+ for (i = timercnt + HEAP0; i-- > HEAP0; )
+#if EV_STAT_ENABLE
+ /*TODO: timer is not always active*/
+ if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
+ {
+ if (types & EV_STAT)
+ cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
+ }
+ else
+#endif
+ if (types & EV_TIMER)
+ cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
+
+#if EV_PERIODIC_ENABLE
+ if (types & EV_PERIODIC)
+ for (i = periodiccnt + HEAP0; i-- > HEAP0; )
+ cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
+#endif
+
+#if EV_IDLE_ENABLE
+ if (types & EV_IDLE)
+ for (j = NUMPRI; j--; )
+ for (i = idlecnt [j]; i--; )
+ cb (EV_A_ EV_IDLE, idles [j][i]);
+#endif
+
+#if EV_FORK_ENABLE
+ if (types & EV_FORK)
+ for (i = forkcnt; i--; )
+ if (ev_cb (forks [i]) != embed_fork_cb)
+ cb (EV_A_ EV_FORK, forks [i]);
+#endif
+
+#if EV_ASYNC_ENABLE
+ if (types & EV_ASYNC)
+ for (i = asynccnt; i--; )
+ cb (EV_A_ EV_ASYNC, asyncs [i]);
+#endif
+
+#if EV_PREPARE_ENABLE
+ if (types & EV_PREPARE)
+ for (i = preparecnt; i--; )
+# if EV_EMBED_ENABLE
+ if (ev_cb (prepares [i]) != embed_prepare_cb)
+# endif
+ cb (EV_A_ EV_PREPARE, prepares [i]);
+#endif
+
+#if EV_CHECK_ENABLE
+ if (types & EV_CHECK)
+ for (i = checkcnt; i--; )
+ cb (EV_A_ EV_CHECK, checks [i]);
+#endif
+
+#if EV_SIGNAL_ENABLE
+ if (types & EV_SIGNAL)
+ for (i = 0; i < EV_NSIG - 1; ++i)
+ for (wl = signals [i].head; wl; )
+ {
+ wn = wl->next;
+ cb (EV_A_ EV_SIGNAL, wl);
+ wl = wn;
+ }
+#endif
+
+#if EV_CHILD_ENABLE
+ if (types & EV_CHILD)
+ for (i = (EV_PID_HASHSIZE); i--; )
+ for (wl = childs [i]; wl; )
+ {
+ wn = wl->next;
+ cb (EV_A_ EV_CHILD, wl);
+ wl = wn;
+ }
+#endif
+}
+#endif
+
+#if EV_MULTIPLICITY
+ #include "ev_wrap.h"
+#endif
+
--- /dev/null
+/*
+ * libev native API header
+ *
+ * Copyright (c) 2007-2018 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#ifndef EV_H_
+#define EV_H_
+
+#ifdef __cplusplus
+# define EV_CPP(x) x
+# if __cplusplus >= 201103L
+# define EV_NOEXCEPT noexcept
+# else
+# define EV_NOEXCEPT
+# endif
+#else
+# define EV_CPP(x)
+# define EV_NOEXCEPT
+#endif
+#define EV_THROW EV_NOEXCEPT /* pre-4.25, do not use in new code */
+
+EV_CPP(extern "C" {)
+
+/*****************************************************************************/
+
+/* pre-4.0 compatibility */
+#ifndef EV_COMPAT3
+# define EV_COMPAT3 1
+#endif
+
+#ifndef EV_FEATURES
+# if defined __OPTIMIZE_SIZE__
+# define EV_FEATURES 0x7c
+# else
+# define EV_FEATURES 0x7f
+# endif
+#endif
+
+#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
+#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
+#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
+#define EV_FEATURE_API ((EV_FEATURES) & 8)
+#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
+#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
+#define EV_FEATURE_OS ((EV_FEATURES) & 64)
+
+/* these priorities are inclusive, higher priorities will be invoked earlier */
+#ifndef EV_MINPRI
+# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
+#endif
+#ifndef EV_MAXPRI
+# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
+#endif
+
+#ifndef EV_MULTIPLICITY
+# define EV_MULTIPLICITY EV_FEATURE_CONFIG
+#endif
+
+#ifndef EV_PERIODIC_ENABLE
+# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_STAT_ENABLE
+# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_PREPARE_ENABLE
+# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_CHECK_ENABLE
+# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_IDLE_ENABLE
+# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_FORK_ENABLE
+# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_CLEANUP_ENABLE
+# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_SIGNAL_ENABLE
+# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_CHILD_ENABLE
+# ifdef _WIN32
+# define EV_CHILD_ENABLE 0
+# else
+# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
+#endif
+#endif
+
+#ifndef EV_ASYNC_ENABLE
+# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_EMBED_ENABLE
+# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_WALK_ENABLE
+# define EV_WALK_ENABLE 0 /* not yet */
+#endif
+
+/*****************************************************************************/
+
+#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
+# undef EV_SIGNAL_ENABLE
+# define EV_SIGNAL_ENABLE 1
+#endif
+
+/*****************************************************************************/
+
+typedef double ev_tstamp;
+
+#include <string.h> /* for memmove */
+
+#ifndef EV_ATOMIC_T
+# include <signal.h>
+# define EV_ATOMIC_T sig_atomic_t volatile
+#endif
+
+#if EV_STAT_ENABLE
+# ifdef _WIN32
+# include <time.h>
+# include <sys/types.h>
+# endif
+# include <sys/stat.h>
+#endif
+
+/* support multiple event loops? */
+#if EV_MULTIPLICITY
+struct ev_loop;
+# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
+# define EV_P_ EV_P, /* a loop as first of multiple parameters */
+# define EV_A loop /* a loop as sole argument to a function call */
+# define EV_A_ EV_A, /* a loop as first of multiple arguments */
+# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
+# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
+# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
+# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
+#else
+# define EV_P void
+# define EV_P_
+# define EV_A
+# define EV_A_
+# define EV_DEFAULT
+# define EV_DEFAULT_
+# define EV_DEFAULT_UC
+# define EV_DEFAULT_UC_
+# undef EV_EMBED_ENABLE
+#endif
+
+/* EV_INLINE is used for functions in header files */
+#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
+# define EV_INLINE static inline
+#else
+# define EV_INLINE static
+#endif
+
+#ifdef EV_API_STATIC
+# define EV_API_DECL static
+#else
+# define EV_API_DECL extern
+#endif
+
+/* EV_PROTOTYPES can be used to switch of prototype declarations */
+#ifndef EV_PROTOTYPES
+# define EV_PROTOTYPES 1
+#endif
+
+/*****************************************************************************/
+
+#define EV_VERSION_MAJOR 4
+#define EV_VERSION_MINOR 25
+
+/* eventmask, revents, events... */
+enum {
+ EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
+ EV_NONE = 0x00, /* no events */
+ EV_READ = 0x01, /* ev_io detected read will not block */
+ EV_WRITE = 0x02, /* ev_io detected write will not block */
+ EV__IOFDSET = 0x80, /* internal use only */
+ EV_IO = EV_READ, /* alias for type-detection */
+ EV_TIMER = 0x00000100, /* timer timed out */
+#if EV_COMPAT3
+ EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
+#endif
+ EV_PERIODIC = 0x00000200, /* periodic timer timed out */
+ EV_SIGNAL = 0x00000400, /* signal was received */
+ EV_CHILD = 0x00000800, /* child/pid had status change */
+ EV_STAT = 0x00001000, /* stat data changed */
+ EV_IDLE = 0x00002000, /* event loop is idling */
+ EV_PREPARE = 0x00004000, /* event loop about to poll */
+ EV_CHECK = 0x00008000, /* event loop finished poll */
+ EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
+ EV_FORK = 0x00020000, /* event loop resumed in child */
+ EV_CLEANUP = 0x00040000, /* event loop resumed in child */
+ EV_ASYNC = 0x00080000, /* async intra-loop signal */
+ EV_CUSTOM = 0x01000000, /* for use by user code */
+ EV_ERROR = (int)0x80000000 /* sent when an error occurs */
+};
+
+/* can be used to add custom fields to all watchers, while losing binary compatibility */
+#ifndef EV_COMMON
+# define EV_COMMON void *data;
+#endif
+
+#ifndef EV_CB_DECLARE
+# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
+#endif
+#ifndef EV_CB_INVOKE
+# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
+#endif
+
+/* not official, do not use */
+#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
+
+/*
+ * struct member types:
+ * private: you may look at them, but not change them,
+ * and they might not mean anything to you.
+ * ro: can be read anytime, but only changed when the watcher isn't active.
+ * rw: can be read and modified anytime, even when the watcher is active.
+ *
+ * some internal details that might be helpful for debugging:
+ *
+ * active is either 0, which means the watcher is not active,
+ * or the array index of the watcher (periodics, timers)
+ * or the array index + 1 (most other watchers)
+ * or simply 1 for watchers that aren't in some array.
+ * pending is either 0, in which case the watcher isn't,
+ * or the array index + 1 in the pendings array.
+ */
+
+#if EV_MINPRI == EV_MAXPRI
+# define EV_DECL_PRIORITY
+#elif !defined (EV_DECL_PRIORITY)
+# define EV_DECL_PRIORITY int priority;
+#endif
+
+/* shared by all watchers */
+#define EV_WATCHER(type) \
+ int active; /* private */ \
+ int pending; /* private */ \
+ EV_DECL_PRIORITY /* private */ \
+ EV_COMMON /* rw */ \
+ EV_CB_DECLARE (type) /* private */
+
+#define EV_WATCHER_LIST(type) \
+ EV_WATCHER (type) \
+ struct ev_watcher_list *next; /* private */
+
+#define EV_WATCHER_TIME(type) \
+ EV_WATCHER (type) \
+ ev_tstamp at; /* private */
+
+/* base class, nothing to see here unless you subclass */
+typedef struct ev_watcher
+{
+ EV_WATCHER (ev_watcher)
+} ev_watcher;
+
+/* base class, nothing to see here unless you subclass */
+typedef struct ev_watcher_list
+{
+ EV_WATCHER_LIST (ev_watcher_list)
+} ev_watcher_list;
+
+/* base class, nothing to see here unless you subclass */
+typedef struct ev_watcher_time
+{
+ EV_WATCHER_TIME (ev_watcher_time)
+} ev_watcher_time;
+
+/* invoked when fd is either EV_READable or EV_WRITEable */
+/* revent EV_READ, EV_WRITE */
+typedef struct ev_io
+{
+ EV_WATCHER_LIST (ev_io)
+
+ int fd; /* ro */
+ int events; /* ro */
+} ev_io;
+
+/* invoked after a specific time, repeatable (based on monotonic clock) */
+/* revent EV_TIMEOUT */
+typedef struct ev_timer
+{
+ EV_WATCHER_TIME (ev_timer)
+
+ ev_tstamp repeat; /* rw */
+} ev_timer;
+
+/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
+/* revent EV_PERIODIC */
+typedef struct ev_periodic
+{
+ EV_WATCHER_TIME (ev_periodic)
+
+ ev_tstamp offset; /* rw */
+ ev_tstamp interval; /* rw */
+ ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_NOEXCEPT; /* rw */
+} ev_periodic;
+
+/* invoked when the given signal has been received */
+/* revent EV_SIGNAL */
+typedef struct ev_signal
+{
+ EV_WATCHER_LIST (ev_signal)
+
+ int signum; /* ro */
+} ev_signal;
+
+/* invoked when sigchld is received and waitpid indicates the given pid */
+/* revent EV_CHILD */
+/* does not support priorities */
+typedef struct ev_child
+{
+ EV_WATCHER_LIST (ev_child)
+
+ int flags; /* private */
+ int pid; /* ro */
+ int rpid; /* rw, holds the received pid */
+ int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
+} ev_child;
+
+#if EV_STAT_ENABLE
+/* st_nlink = 0 means missing file or other error */
+# ifdef _WIN32
+typedef struct _stati64 ev_statdata;
+# else
+typedef struct stat ev_statdata;
+# endif
+
+/* invoked each time the stat data changes for a given path */
+/* revent EV_STAT */
+typedef struct ev_stat
+{
+ EV_WATCHER_LIST (ev_stat)
+
+ ev_timer timer; /* private */
+ ev_tstamp interval; /* ro */
+ const char *path; /* ro */
+ ev_statdata prev; /* ro */
+ ev_statdata attr; /* ro */
+
+ int wd; /* wd for inotify, fd for kqueue */
+} ev_stat;
+#endif
+
+#if EV_IDLE_ENABLE
+/* invoked when the nothing else needs to be done, keeps the process from blocking */
+/* revent EV_IDLE */
+typedef struct ev_idle
+{
+ EV_WATCHER (ev_idle)
+} ev_idle;
+#endif
+
+/* invoked for each run of the mainloop, just before the blocking call */
+/* you can still change events in any way you like */
+/* revent EV_PREPARE */
+typedef struct ev_prepare
+{
+ EV_WATCHER (ev_prepare)
+} ev_prepare;
+
+/* invoked for each run of the mainloop, just after the blocking call */
+/* revent EV_CHECK */
+typedef struct ev_check
+{
+ EV_WATCHER (ev_check)
+} ev_check;
+
+#if EV_FORK_ENABLE
+/* the callback gets invoked before check in the child process when a fork was detected */
+/* revent EV_FORK */
+typedef struct ev_fork
+{
+ EV_WATCHER (ev_fork)
+} ev_fork;
+#endif
+
+#if EV_CLEANUP_ENABLE
+/* is invoked just before the loop gets destroyed */
+/* revent EV_CLEANUP */
+typedef struct ev_cleanup
+{
+ EV_WATCHER (ev_cleanup)
+} ev_cleanup;
+#endif
+
+#if EV_EMBED_ENABLE
+/* used to embed an event loop inside another */
+/* the callback gets invoked when the event loop has handled events, and can be 0 */
+typedef struct ev_embed
+{
+ EV_WATCHER (ev_embed)
+
+ struct ev_loop *other; /* ro */
+ ev_io io; /* private */
+ ev_prepare prepare; /* private */
+ ev_check check; /* unused */
+ ev_timer timer; /* unused */
+ ev_periodic periodic; /* unused */
+ ev_idle idle; /* unused */
+ ev_fork fork; /* private */
+#if EV_CLEANUP_ENABLE
+ ev_cleanup cleanup; /* unused */
+#endif
+} ev_embed;
+#endif
+
+#if EV_ASYNC_ENABLE
+/* invoked when somebody calls ev_async_send on the watcher */
+/* revent EV_ASYNC */
+typedef struct ev_async
+{
+ EV_WATCHER (ev_async)
+
+ EV_ATOMIC_T sent; /* private */
+} ev_async;
+
+# define ev_async_pending(w) (+(w)->sent)
+#endif
+
+/* the presence of this union forces similar struct layout */
+union ev_any_watcher
+{
+ struct ev_watcher w;
+ struct ev_watcher_list wl;
+
+ struct ev_io io;
+ struct ev_timer timer;
+ struct ev_periodic periodic;
+ struct ev_signal signal;
+ struct ev_child child;
+#if EV_STAT_ENABLE
+ struct ev_stat stat;
+#endif
+#if EV_IDLE_ENABLE
+ struct ev_idle idle;
+#endif
+ struct ev_prepare prepare;
+ struct ev_check check;
+#if EV_FORK_ENABLE
+ struct ev_fork fork;
+#endif
+#if EV_CLEANUP_ENABLE
+ struct ev_cleanup cleanup;
+#endif
+#if EV_EMBED_ENABLE
+ struct ev_embed embed;
+#endif
+#if EV_ASYNC_ENABLE
+ struct ev_async async;
+#endif
+};
+
+/* flag bits for ev_default_loop and ev_loop_new */
+enum {
+ /* the default */
+ EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
+ /* flag bits */
+ EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
+ EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
+ /* debugging/feature disable */
+ EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
+#if EV_COMPAT3
+ EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
+#endif
+ EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
+ EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
+};
+
+/* method bits to be ored together */
+enum {
+ EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
+ EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
+ EVBACKEND_EPOLL = 0x00000004U, /* linux */
+ EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
+ EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
+ EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
+ EVBACKEND_ALL = 0x0000003FU, /* all known backends */
+ EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
+};
+
+#if EV_PROTOTYPES
+EV_API_DECL int ev_version_major (void) EV_NOEXCEPT;
+EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT;
+
+EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT;
+EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT;
+EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT;
+
+EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT;
+EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */
+
+/* Sets the allocation function to use, works like realloc.
+ * It is used to allocate and free memory.
+ * If it returns zero when memory needs to be allocated, the library might abort
+ * or take some potentially destructive action.
+ * The default is your system realloc function.
+ */
+EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT;
+
+/* set the callback function to call on a
+ * retryable syscall error
+ * (such as failed select, poll, epoll_wait)
+ */
+EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT;
+
+#if EV_MULTIPLICITY
+
+/* the default loop is the only one that handles signals and child watchers */
+/* you can call this as often as you like */
+EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
+
+#ifdef EV_API_STATIC
+EV_API_DECL struct ev_loop *ev_default_loop_ptr;
+#endif
+
+EV_INLINE struct ev_loop *
+ev_default_loop_uc_ (void) EV_NOEXCEPT
+{
+ extern struct ev_loop *ev_default_loop_ptr;
+
+ return ev_default_loop_ptr;
+}
+
+EV_INLINE int
+ev_is_default_loop (EV_P) EV_NOEXCEPT
+{
+ return EV_A == EV_DEFAULT_UC;
+}
+
+/* create and destroy alternative loops that don't handle signals */
+EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT;
+
+EV_API_DECL ev_tstamp ev_now (EV_P) EV_NOEXCEPT; /* time w.r.t. timers and the eventloop, updated after each poll */
+
+#else
+
+EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */
+
+EV_API_DECL ev_tstamp ev_rt_now;
+
+EV_INLINE ev_tstamp
+ev_now (void) EV_NOEXCEPT
+{
+ return ev_rt_now;
+}
+
+/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
+EV_INLINE int
+ev_is_default_loop (void) EV_NOEXCEPT
+{
+ return 1;
+}
+
+#endif /* multiplicity */
+
+/* destroy event loops, also works for the default loop */
+EV_API_DECL void ev_loop_destroy (EV_P);
+
+/* this needs to be called after fork, to duplicate the loop */
+/* when you want to re-use it in the child */
+/* you can call it in either the parent or the child */
+/* you can actually call it at any time, anywhere :) */
+EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT;
+
+EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */
+
+EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */
+
+#if EV_WALK_ENABLE
+/* walk (almost) all watchers in the loop of a given type, invoking the */
+/* callback on every such watcher. The callback might stop the watcher, */
+/* but do nothing else with the loop */
+EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT;
+#endif
+
+#endif /* prototypes */
+
+/* ev_run flags values */
+enum {
+ EVRUN_NOWAIT = 1, /* do not block/wait */
+ EVRUN_ONCE = 2 /* block *once* only */
+};
+
+/* ev_break how values */
+enum {
+ EVBREAK_CANCEL = 0, /* undo unloop */
+ EVBREAK_ONE = 1, /* unloop once */
+ EVBREAK_ALL = 2 /* unloop all loops */
+};
+
+#if EV_PROTOTYPES
+EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
+EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_NOEXCEPT; /* break out of the loop */
+
+/*
+ * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
+ * keeps one reference. if you have a long-running watcher you never unregister that
+ * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
+ */
+EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT;
+EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT;
+
+/*
+ * convenience function, wait for a single event, without registering an event watcher
+ * if timeout is < 0, do wait indefinitely
+ */
+EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT;
+
+# if EV_FEATURE_API
+EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */
+EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */
+EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */
+
+EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
+EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */
+
+/* advanced stuff for threading etc. support, see docs */
+EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT;
+EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT;
+typedef void (*ev_loop_callback)(EV_P);
+EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT;
+/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
+EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT;
+
+EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */
+EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
+
+/*
+ * stop/start the timer handling.
+ */
+EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT;
+EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT;
+#endif
+
+#endif
+
+/* these may evaluate ev multiple times, and the other arguments at most once */
+/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
+#define ev_init(ev,cb_) do { \
+ ((ev_watcher *)(void *)(ev))->active = \
+ ((ev_watcher *)(void *)(ev))->pending = 0; \
+ ev_set_priority ((ev), 0); \
+ ev_set_cb ((ev), cb_); \
+} while (0)
+
+#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
+#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
+#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
+#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
+#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
+#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
+#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
+#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
+#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
+#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
+#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
+#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
+#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
+
+#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
+#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
+#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
+#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
+#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
+#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
+#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
+#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
+#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
+#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
+#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
+#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
+#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
+
+#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
+#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
+
+#define ev_cb_(ev) (ev)->cb /* rw */
+#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
+
+#if EV_MINPRI == EV_MAXPRI
+# define ev_priority(ev) ((ev), EV_MINPRI)
+# define ev_set_priority(ev,pri) ((ev), (pri))
+#else
+# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
+# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
+#endif
+
+#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
+
+#ifndef ev_set_cb
+# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
+#endif
+
+/* stopping (enabling, adding) a watcher does nothing if it is already running */
+/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
+#if EV_PROTOTYPES
+
+/* feeds an event into a watcher as if the event actually occurred */
+/* accepts any ev_watcher type */
+EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT;
+EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT;
+#if EV_SIGNAL_ENABLE
+EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT;
+EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT;
+#endif
+EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
+EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT;
+
+EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT;
+EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT;
+
+EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT;
+EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT;
+/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
+EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT;
+/* return remaining time */
+EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT;
+
+#if EV_PERIODIC_ENABLE
+EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT;
+EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT;
+EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT;
+#endif
+
+/* only supported in the default loop */
+#if EV_SIGNAL_ENABLE
+EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT;
+EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT;
+#endif
+
+/* only supported in the default loop */
+# if EV_CHILD_ENABLE
+EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT;
+EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT;
+# endif
+
+# if EV_STAT_ENABLE
+EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT;
+EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT;
+EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT;
+# endif
+
+# if EV_IDLE_ENABLE
+EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT;
+EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT;
+# endif
+
+#if EV_PREPARE_ENABLE
+EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT;
+EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT;
+#endif
+
+#if EV_CHECK_ENABLE
+EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT;
+EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT;
+#endif
+
+# if EV_FORK_ENABLE
+EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT;
+EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT;
+# endif
+
+# if EV_CLEANUP_ENABLE
+EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
+EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT;
+# endif
+
+# if EV_EMBED_ENABLE
+/* only supported when loop to be embedded is in fact embeddable */
+EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT;
+EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT;
+EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT;
+# endif
+
+# if EV_ASYNC_ENABLE
+EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT;
+EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT;
+EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT;
+# endif
+
+#if EV_COMPAT3
+ #define EVLOOP_NONBLOCK EVRUN_NOWAIT
+ #define EVLOOP_ONESHOT EVRUN_ONCE
+ #define EVUNLOOP_CANCEL EVBREAK_CANCEL
+ #define EVUNLOOP_ONE EVBREAK_ONE
+ #define EVUNLOOP_ALL EVBREAK_ALL
+ #if EV_PROTOTYPES
+ EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
+ EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
+ EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
+ EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
+ #if EV_FEATURE_API
+ EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
+ EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
+ EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
+ #endif
+ #endif
+#else
+ typedef struct ev_loop ev_loop;
+#endif
+
+#endif
+
+EV_CPP(})
+
+#endif
+
--- /dev/null
+/*
+ * libev epoll fd activity backend
+ *
+ * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+/*
+ * general notes about epoll:
+ *
+ * a) epoll silently removes fds from the fd set. as nothing tells us
+ * that an fd has been removed otherwise, we have to continually
+ * "rearm" fds that we suspect *might* have changed (same
+ * problem with kqueue, but much less costly there).
+ * b) the fact that ADD != MOD creates a lot of extra syscalls due to a)
+ * and seems not to have any advantage.
+ * c) the inability to handle fork or file descriptors (think dup)
+ * limits the applicability over poll, so this is not a generic
+ * poll replacement.
+ * d) epoll doesn't work the same as select with many file descriptors
+ * (such as files). while not critical, no other advanced interface
+ * seems to share this (rather non-unixy) limitation.
+ * e) epoll claims to be embeddable, but in practise you never get
+ * a ready event for the epoll fd (broken: <=2.6.26, working: >=2.6.32).
+ * f) epoll_ctl returning EPERM means the fd is always ready.
+ *
+ * lots of "weird code" and complication handling in this file is due
+ * to these design problems with epoll, as we try very hard to avoid
+ * epoll_ctl syscalls for common usage patterns and handle the breakage
+ * ensuing from receiving events for closed and otherwise long gone
+ * file descriptors.
+ */
+
+#include <sys/epoll.h>
+
+#define EV_EMASK_EPERM 0x80
+
+static void
+epoll_modify (EV_P_ int fd, int oev, int nev)
+{
+ struct epoll_event ev;
+ unsigned char oldmask;
+
+ /*
+ * we handle EPOLL_CTL_DEL by ignoring it here
+ * on the assumption that the fd is gone anyways
+ * if that is wrong, we have to handle the spurious
+ * event in epoll_poll.
+ * if the fd is added again, we try to ADD it, and, if that
+ * fails, we assume it still has the same eventmask.
+ */
+ if (!nev)
+ return;
+
+ oldmask = anfds [fd].emask;
+ anfds [fd].emask = nev;
+
+ /* store the generation counter in the upper 32 bits, the fd in the lower 32 bits */
+ ev.data.u64 = (uint64_t)(uint32_t)fd
+ | ((uint64_t)(uint32_t)++anfds [fd].egen << 32);
+ ev.events = (nev & EV_READ ? EPOLLIN : 0)
+ | (nev & EV_WRITE ? EPOLLOUT : 0);
+
+ if (expect_true (!epoll_ctl (backend_fd, oev && oldmask != nev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, fd, &ev)))
+ return;
+
+ if (expect_true (errno == ENOENT))
+ {
+ /* if ENOENT then the fd went away, so try to do the right thing */
+ if (!nev)
+ goto dec_egen;
+
+ if (!epoll_ctl (backend_fd, EPOLL_CTL_ADD, fd, &ev))
+ return;
+ }
+ else if (expect_true (errno == EEXIST))
+ {
+ /* EEXIST means we ignored a previous DEL, but the fd is still active */
+ /* if the kernel mask is the same as the new mask, we assume it hasn't changed */
+ if (oldmask == nev)
+ goto dec_egen;
+
+ if (!epoll_ctl (backend_fd, EPOLL_CTL_MOD, fd, &ev))
+ return;
+ }
+ else if (expect_true (errno == EPERM))
+ {
+ /* EPERM means the fd is always ready, but epoll is too snobbish */
+ /* to handle it, unlike select or poll. */
+ anfds [fd].emask = EV_EMASK_EPERM;
+
+ /* add fd to epoll_eperms, if not already inside */
+ if (!(oldmask & EV_EMASK_EPERM))
+ {
+ array_needsize (int, epoll_eperms, epoll_epermmax, epoll_epermcnt + 1, EMPTY2);
+ epoll_eperms [epoll_epermcnt++] = fd;
+ }
+
+ return;
+ }
+
+ fd_kill (EV_A_ fd);
+
+dec_egen:
+ /* we didn't successfully call epoll_ctl, so decrement the generation counter again */
+ --anfds [fd].egen;
+}
+
+static void
+epoll_poll (EV_P_ ev_tstamp timeout)
+{
+ int i;
+ int eventcnt;
+
+ if (expect_false (epoll_epermcnt))
+ timeout = 0.;
+
+ /* epoll wait times cannot be larger than (LONG_MAX - 999UL) / HZ msecs, which is below */
+ /* the default libev max wait time, however. */
+ EV_RELEASE_CB;
+ eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax, timeout * 1e3);
+ EV_ACQUIRE_CB;
+
+ if (expect_false (eventcnt < 0))
+ {
+ if (errno != EINTR)
+ ev_syserr ("(libev) epoll_wait");
+
+ return;
+ }
+
+ for (i = 0; i < eventcnt; ++i)
+ {
+ struct epoll_event *ev = epoll_events + i;
+
+ int fd = (uint32_t)ev->data.u64; /* mask out the lower 32 bits */
+ int want = anfds [fd].events;
+ int got = (ev->events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0)
+ | (ev->events & (EPOLLIN | EPOLLERR | EPOLLHUP) ? EV_READ : 0);
+
+ /*
+ * check for spurious notification.
+ * this only finds spurious notifications on egen updates
+ * other spurious notifications will be found by epoll_ctl, below
+ * we assume that fd is always in range, as we never shrink the anfds array
+ */
+ if (expect_false ((uint32_t)anfds [fd].egen != (uint32_t)(ev->data.u64 >> 32)))
+ {
+ /* recreate kernel state */
+ postfork |= 2;
+ continue;
+ }
+
+ if (expect_false (got & ~want))
+ {
+ anfds [fd].emask = want;
+
+ /*
+ * we received an event but are not interested in it, try mod or del
+ * this often happens because we optimistically do not unregister fds
+ * when we are no longer interested in them, but also when we get spurious
+ * notifications for fds from another process. this is partially handled
+ * above with the gencounter check (== our fd is not the event fd), and
+ * partially here, when epoll_ctl returns an error (== a child has the fd
+ * but we closed it).
+ */
+ ev->events = (want & EV_READ ? EPOLLIN : 0)
+ | (want & EV_WRITE ? EPOLLOUT : 0);
+
+ /* pre-2.6.9 kernels require a non-null pointer with EPOLL_CTL_DEL, */
+ /* which is fortunately easy to do for us. */
+ if (epoll_ctl (backend_fd, want ? EPOLL_CTL_MOD : EPOLL_CTL_DEL, fd, ev))
+ {
+ postfork |= 2; /* an error occurred, recreate kernel state */
+ continue;
+ }
+ }
+
+ fd_event (EV_A_ fd, got);
+ }
+
+ /* if the receive array was full, increase its size */
+ if (expect_false (eventcnt == epoll_eventmax))
+ {
+ ev_free (epoll_events);
+ epoll_eventmax = array_nextsize (sizeof (struct epoll_event), epoll_eventmax, epoll_eventmax + 1);
+ epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax);
+ }
+
+ /* now synthesize events for all fds where epoll fails, while select works... */
+ for (i = epoll_epermcnt; i--; )
+ {
+ int fd = epoll_eperms [i];
+ unsigned char events = anfds [fd].events & (EV_READ | EV_WRITE);
+
+ if (anfds [fd].emask & EV_EMASK_EPERM && events)
+ fd_event (EV_A_ fd, events);
+ else
+ {
+ epoll_eperms [i] = epoll_eperms [--epoll_epermcnt];
+ anfds [fd].emask = 0;
+ }
+ }
+}
+
+inline_size
+int
+epoll_init (EV_P_ int flags)
+{
+#if defined EPOLL_CLOEXEC && !defined __ANDROID__
+ backend_fd = epoll_create1 (EPOLL_CLOEXEC);
+
+ if (backend_fd < 0 && (errno == EINVAL || errno == ENOSYS))
+#endif
+ backend_fd = epoll_create (256);
+
+ if (backend_fd < 0)
+ return 0;
+
+ fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
+
+ backend_mintime = 1e-3; /* epoll does sometimes return early, this is just to avoid the worst */
+ backend_modify = epoll_modify;
+ backend_poll = epoll_poll;
+
+ epoll_eventmax = 64; /* initial number of events receivable per poll */
+ epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax);
+
+ return EVBACKEND_EPOLL;
+}
+
+inline_size
+void
+epoll_destroy (EV_P)
+{
+ ev_free (epoll_events);
+ array_free (epoll_eperm, EMPTY);
+}
+
+inline_size
+void
+epoll_fork (EV_P)
+{
+ close (backend_fd);
+
+ while ((backend_fd = epoll_create (256)) < 0)
+ ev_syserr ("(libev) epoll_create");
+
+ fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
+
+ fd_rearm_all (EV_A);
+}
+
--- /dev/null
+/*
+ * libev kqueue backend
+ *
+ * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/event.h>
+#include <string.h>
+#include <errno.h>
+
+inline_speed
+void
+kqueue_change (EV_P_ int fd, int filter, int flags, int fflags)
+{
+ ++kqueue_changecnt;
+ array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2);
+
+ EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0);
+}
+
+/* OS X at least needs this */
+#ifndef EV_ENABLE
+# define EV_ENABLE 0
+#endif
+#ifndef NOTE_EOF
+# define NOTE_EOF 0
+#endif
+
+static void
+kqueue_modify (EV_P_ int fd, int oev, int nev)
+{
+ if (oev != nev)
+ {
+ if (oev & EV_READ)
+ kqueue_change (EV_A_ fd, EVFILT_READ , EV_DELETE, 0);
+
+ if (oev & EV_WRITE)
+ kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_DELETE, 0);
+ }
+
+ /* to detect close/reopen reliably, we have to re-add */
+ /* event requests even when oev == nev */
+
+ if (nev & EV_READ)
+ kqueue_change (EV_A_ fd, EVFILT_READ , EV_ADD | EV_ENABLE, NOTE_EOF);
+
+ if (nev & EV_WRITE)
+ kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_ADD | EV_ENABLE, NOTE_EOF);
+}
+
+static void
+kqueue_poll (EV_P_ ev_tstamp timeout)
+{
+ int res, i;
+ struct timespec ts;
+
+ /* need to resize so there is enough space for errors */
+ if (kqueue_changecnt > kqueue_eventmax)
+ {
+ ev_free (kqueue_events);
+ kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_changecnt);
+ kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
+ }
+
+ EV_RELEASE_CB;
+ EV_TS_SET (ts, timeout);
+ res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts);
+ EV_ACQUIRE_CB;
+ kqueue_changecnt = 0;
+
+ if (expect_false (res < 0))
+ {
+ if (errno != EINTR)
+ ev_syserr ("(libev) kevent");
+
+ return;
+ }
+
+ for (i = 0; i < res; ++i)
+ {
+ int fd = kqueue_events [i].ident;
+
+ if (expect_false (kqueue_events [i].flags & EV_ERROR))
+ {
+ int err = kqueue_events [i].data;
+
+ /* we are only interested in errors for fds that we are interested in :) */
+ if (anfds [fd].events)
+ {
+ if (err == ENOENT) /* resubmit changes on ENOENT */
+ kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
+ else if (err == EBADF) /* on EBADF, we re-check the fd */
+ {
+ if (fd_valid (fd))
+ kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
+ else
+ fd_kill (EV_A_ fd);
+ }
+ else /* on all other errors, we error out on the fd */
+ fd_kill (EV_A_ fd);
+ }
+ }
+ else
+ fd_event (
+ EV_A_
+ fd,
+ kqueue_events [i].filter == EVFILT_READ ? EV_READ
+ : kqueue_events [i].filter == EVFILT_WRITE ? EV_WRITE
+ : 0
+ );
+ }
+
+ if (expect_false (res == kqueue_eventmax))
+ {
+ ev_free (kqueue_events);
+ kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_eventmax + 1);
+ kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
+ }
+}
+
+inline_size
+int
+kqueue_init (EV_P_ int flags)
+{
+ /* initialize the kernel queue */
+ kqueue_fd_pid = getpid ();
+ if ((backend_fd = kqueue ()) < 0)
+ return 0;
+
+ fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
+
+ backend_mintime = 1e-9; /* apparently, they did the right thing in freebsd */
+ backend_modify = kqueue_modify;
+ backend_poll = kqueue_poll;
+
+ kqueue_eventmax = 64; /* initial number of events receivable per poll */
+ kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
+
+ kqueue_changes = 0;
+ kqueue_changemax = 0;
+ kqueue_changecnt = 0;
+
+ return EVBACKEND_KQUEUE;
+}
+
+inline_size
+void
+kqueue_destroy (EV_P)
+{
+ ev_free (kqueue_events);
+ ev_free (kqueue_changes);
+}
+
+inline_size
+void
+kqueue_fork (EV_P)
+{
+ /* some BSD kernels don't just destroy the kqueue itself,
+ * but also close the fd, which isn't documented, and
+ * impossible to support properly.
+ * we remember the pid of the kqueue call and only close
+ * the fd if the pid is still the same.
+ * this leaks fds on sane kernels, but BSD interfaces are
+ * notoriously buggy and rarely get fixed.
+ */
+ pid_t newpid = getpid ();
+
+ if (newpid == kqueue_fd_pid)
+ close (backend_fd);
+
+ kqueue_fd_pid = newpid;
+ while ((backend_fd = kqueue ()) < 0)
+ ev_syserr ("(libev) kqueue");
+
+ fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
+
+ /* re-register interest in fds */
+ fd_rearm_all (EV_A);
+}
+
+/* sys/event.h defines EV_ERROR */
+#undef EV_ERROR
+
--- /dev/null
+/*
+ * libev poll fd activity backend
+ *
+ * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#include <poll.h>
+
+inline_size
+void
+pollidx_init (int *base, int count)
+{
+ /* consider using memset (.., -1, ...), which is practically guaranteed
+ * to work on all systems implementing poll */
+ while (count--)
+ *base++ = -1;
+}
+
+static void
+poll_modify (EV_P_ int fd, int oev, int nev)
+{
+ int idx;
+
+ if (oev == nev)
+ return;
+
+ array_needsize (int, pollidxs, pollidxmax, fd + 1, pollidx_init);
+
+ idx = pollidxs [fd];
+
+ if (idx < 0) /* need to allocate a new pollfd */
+ {
+ pollidxs [fd] = idx = pollcnt++;
+ array_needsize (struct pollfd, polls, pollmax, pollcnt, EMPTY2);
+ polls [idx].fd = fd;
+ }
+
+ assert (polls [idx].fd == fd);
+
+ if (nev)
+ polls [idx].events =
+ (nev & EV_READ ? POLLIN : 0)
+ | (nev & EV_WRITE ? POLLOUT : 0);
+ else /* remove pollfd */
+ {
+ pollidxs [fd] = -1;
+
+ if (expect_true (idx < --pollcnt))
+ {
+ polls [idx] = polls [pollcnt];
+ pollidxs [polls [idx].fd] = idx;
+ }
+ }
+}
+
+static void
+poll_poll (EV_P_ ev_tstamp timeout)
+{
+ struct pollfd *p;
+ int res;
+
+ EV_RELEASE_CB;
+ res = poll (polls, pollcnt, timeout * 1e3);
+ EV_ACQUIRE_CB;
+
+ if (expect_false (res < 0))
+ {
+ if (errno == EBADF)
+ fd_ebadf (EV_A);
+ else if (errno == ENOMEM && !syserr_cb)
+ fd_enomem (EV_A);
+ else if (errno != EINTR)
+ ev_syserr ("(libev) poll");
+ }
+ else
+ for (p = polls; res; ++p)
+ {
+ assert (("libev: poll() returned illegal result, broken BSD kernel?", p < polls + pollcnt));
+
+ if (expect_false (p->revents)) /* this expect is debatable */
+ {
+ --res;
+
+ if (expect_false (p->revents & POLLNVAL))
+ fd_kill (EV_A_ p->fd);
+ else
+ fd_event (
+ EV_A_
+ p->fd,
+ (p->revents & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
+ | (p->revents & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
+ );
+ }
+ }
+}
+
+inline_size
+int
+poll_init (EV_P_ int flags)
+{
+ backend_mintime = 1e-3;
+ backend_modify = poll_modify;
+ backend_poll = poll_poll;
+
+ pollidxs = 0; pollidxmax = 0;
+ polls = 0; pollmax = 0; pollcnt = 0;
+
+ return EVBACKEND_POLL;
+}
+
+inline_size
+void
+poll_destroy (EV_P)
+{
+ ev_free (pollidxs);
+ ev_free (polls);
+}
+
--- /dev/null
+/*
+ * libev solaris event port backend
+ *
+ * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+/* useful reading:
+ *
+ * http://bugs.opensolaris.org/view_bug.do?bug_id=6268715 (random results)
+ * http://bugs.opensolaris.org/view_bug.do?bug_id=6455223 (just totally broken)
+ * http://bugs.opensolaris.org/view_bug.do?bug_id=6873782 (manpage ETIME)
+ * http://bugs.opensolaris.org/view_bug.do?bug_id=6874410 (implementation ETIME)
+ * http://www.mail-archive.com/networking-discuss@opensolaris.org/msg11898.html ETIME vs. nget
+ * http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/event_port.c (libc)
+ * http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/portfs/port.c#1325 (kernel)
+ */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <poll.h>
+#include <port.h>
+#include <string.h>
+#include <errno.h>
+
+inline_speed
+void
+port_associate_and_check (EV_P_ int fd, int ev)
+{
+ if (0 >
+ port_associate (
+ backend_fd, PORT_SOURCE_FD, fd,
+ (ev & EV_READ ? POLLIN : 0)
+ | (ev & EV_WRITE ? POLLOUT : 0),
+ 0
+ )
+ )
+ {
+ if (errno == EBADFD)
+ fd_kill (EV_A_ fd);
+ else
+ ev_syserr ("(libev) port_associate");
+ }
+}
+
+static void
+port_modify (EV_P_ int fd, int oev, int nev)
+{
+ /* we need to reassociate no matter what, as closes are
+ * once more silently being discarded.
+ */
+ if (!nev)
+ {
+ if (oev)
+ port_dissociate (backend_fd, PORT_SOURCE_FD, fd);
+ }
+ else
+ port_associate_and_check (EV_A_ fd, nev);
+}
+
+static void
+port_poll (EV_P_ ev_tstamp timeout)
+{
+ int res, i;
+ struct timespec ts;
+ uint_t nget = 1;
+
+ /* we initialise this to something we will skip in the loop, as */
+ /* port_getn can return with nget unchanged, but no indication */
+ /* whether it was the original value or has been updated :/ */
+ port_events [0].portev_source = 0;
+
+ EV_RELEASE_CB;
+ EV_TS_SET (ts, timeout);
+ res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);
+ EV_ACQUIRE_CB;
+
+ /* port_getn may or may not set nget on error */
+ /* so we rely on port_events [0].portev_source not being updated */
+ if (res == -1 && errno != ETIME && errno != EINTR)
+ ev_syserr ("(libev) port_getn (see http://bugs.opensolaris.org/view_bug.do?bug_id=6268715, try LIBEV_FLAGS=3 env variable)");
+
+ for (i = 0; i < nget; ++i)
+ {
+ if (port_events [i].portev_source == PORT_SOURCE_FD)
+ {
+ int fd = port_events [i].portev_object;
+
+ fd_event (
+ EV_A_
+ fd,
+ (port_events [i].portev_events & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
+ | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
+ );
+
+ fd_change (EV_A_ fd, EV__IOFDSET);
+ }
+ }
+
+ if (expect_false (nget == port_eventmax))
+ {
+ ev_free (port_events);
+ port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
+ port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
+ }
+}
+
+inline_size
+int
+port_init (EV_P_ int flags)
+{
+ /* Initialize the kernel queue */
+ if ((backend_fd = port_create ()) < 0)
+ return 0;
+
+ assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD));
+
+ fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
+
+ /* if my reading of the opensolaris kernel sources are correct, then
+ * opensolaris does something very stupid: it checks if the time has already
+ * elapsed and doesn't round up if that is the case,m otherwise it DOES round
+ * up. Since we can't know what the case is, we need to guess by using a
+ * "large enough" timeout. Normally, 1e-9 would be correct.
+ */
+ backend_mintime = 1e-3; /* needed to compensate for port_getn returning early */
+ backend_modify = port_modify;
+ backend_poll = port_poll;
+
+ port_eventmax = 64; /* initial number of events receivable per poll */
+ port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
+
+ return EVBACKEND_PORT;
+}
+
+inline_size
+void
+port_destroy (EV_P)
+{
+ ev_free (port_events);
+}
+
+inline_size
+void
+port_fork (EV_P)
+{
+ close (backend_fd);
+
+ while ((backend_fd = port_create ()) < 0)
+ ev_syserr ("(libev) port");
+
+ fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
+
+ /* re-register interest in fds */
+ fd_rearm_all (EV_A);
+}
+
--- /dev/null
+/*
+ * libev select fd activity backend
+ *
+ * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#ifndef _WIN32
+/* for unix systems */
+# include <inttypes.h>
+# ifndef __hpux
+/* for REAL unix systems */
+# include <sys/select.h>
+# endif
+#endif
+
+#ifndef EV_SELECT_USE_FD_SET
+# ifdef NFDBITS
+# define EV_SELECT_USE_FD_SET 0
+# else
+# define EV_SELECT_USE_FD_SET 1
+# endif
+#endif
+
+#if EV_SELECT_IS_WINSOCKET
+# undef EV_SELECT_USE_FD_SET
+# define EV_SELECT_USE_FD_SET 1
+# undef NFDBITS
+# define NFDBITS 0
+#endif
+
+#if !EV_SELECT_USE_FD_SET
+# define NFDBYTES (NFDBITS / 8)
+#endif
+
+#include <string.h>
+
+static void
+select_modify (EV_P_ int fd, int oev, int nev)
+{
+ if (oev == nev)
+ return;
+
+ {
+#if EV_SELECT_USE_FD_SET
+
+ #if EV_SELECT_IS_WINSOCKET
+ SOCKET handle = anfds [fd].handle;
+ #else
+ int handle = fd;
+ #endif
+
+ assert (("libev: fd >= FD_SETSIZE passed to fd_set-based select backend", fd < FD_SETSIZE));
+
+ /* FD_SET is broken on windows (it adds the fd to a set twice or more,
+ * which eventually leads to overflows). Need to call it only on changes.
+ */
+ #if EV_SELECT_IS_WINSOCKET
+ if ((oev ^ nev) & EV_READ)
+ #endif
+ if (nev & EV_READ)
+ FD_SET (handle, (fd_set *)vec_ri);
+ else
+ FD_CLR (handle, (fd_set *)vec_ri);
+
+ #if EV_SELECT_IS_WINSOCKET
+ if ((oev ^ nev) & EV_WRITE)
+ #endif
+ if (nev & EV_WRITE)
+ FD_SET (handle, (fd_set *)vec_wi);
+ else
+ FD_CLR (handle, (fd_set *)vec_wi);
+
+#else
+
+ int word = fd / NFDBITS;
+ fd_mask mask = 1UL << (fd % NFDBITS);
+
+ if (expect_false (vec_max <= word))
+ {
+ int new_max = word + 1;
+
+ vec_ri = ev_realloc (vec_ri, new_max * NFDBYTES);
+ vec_ro = ev_realloc (vec_ro, new_max * NFDBYTES); /* could free/malloc */
+ vec_wi = ev_realloc (vec_wi, new_max * NFDBYTES);
+ vec_wo = ev_realloc (vec_wo, new_max * NFDBYTES); /* could free/malloc */
+ #ifdef _WIN32
+ vec_eo = ev_realloc (vec_eo, new_max * NFDBYTES); /* could free/malloc */
+ #endif
+
+ for (; vec_max < new_max; ++vec_max)
+ ((fd_mask *)vec_ri) [vec_max] =
+ ((fd_mask *)vec_wi) [vec_max] = 0;
+ }
+
+ ((fd_mask *)vec_ri) [word] |= mask;
+ if (!(nev & EV_READ))
+ ((fd_mask *)vec_ri) [word] &= ~mask;
+
+ ((fd_mask *)vec_wi) [word] |= mask;
+ if (!(nev & EV_WRITE))
+ ((fd_mask *)vec_wi) [word] &= ~mask;
+#endif
+ }
+}
+
+static void
+select_poll (EV_P_ ev_tstamp timeout)
+{
+ struct timeval tv;
+ int res;
+ int fd_setsize;
+
+ EV_RELEASE_CB;
+ EV_TV_SET (tv, timeout);
+
+#if EV_SELECT_USE_FD_SET
+ fd_setsize = sizeof (fd_set);
+#else
+ fd_setsize = vec_max * NFDBYTES;
+#endif
+
+ memcpy (vec_ro, vec_ri, fd_setsize);
+ memcpy (vec_wo, vec_wi, fd_setsize);
+
+#ifdef _WIN32
+ /* pass in the write set as except set.
+ * the idea behind this is to work around a windows bug that causes
+ * errors to be reported as an exception and not by setting
+ * the writable bit. this is so uncontrollably lame.
+ */
+ memcpy (vec_eo, vec_wi, fd_setsize);
+ res = select (vec_max * NFDBITS, (fd_set *)vec_ro, (fd_set *)vec_wo, (fd_set *)vec_eo, &tv);
+#elif EV_SELECT_USE_FD_SET
+ fd_setsize = anfdmax < FD_SETSIZE ? anfdmax : FD_SETSIZE;
+ res = select (fd_setsize, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
+#else
+ res = select (vec_max * NFDBITS, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
+#endif
+ EV_ACQUIRE_CB;
+
+ if (expect_false (res < 0))
+ {
+ #if EV_SELECT_IS_WINSOCKET
+ errno = WSAGetLastError ();
+ #endif
+ #ifdef WSABASEERR
+ /* on windows, select returns incompatible error codes, fix this */
+ if (errno >= WSABASEERR && errno < WSABASEERR + 1000)
+ if (errno == WSAENOTSOCK)
+ errno = EBADF;
+ else
+ errno -= WSABASEERR;
+ #endif
+
+ #ifdef _WIN32
+ /* select on windows erroneously returns EINVAL when no fd sets have been
+ * provided (this is documented). what microsoft doesn't tell you that this bug
+ * exists even when the fd sets _are_ provided, so we have to check for this bug
+ * here and emulate by sleeping manually.
+ * we also get EINVAL when the timeout is invalid, but we ignore this case here
+ * and assume that EINVAL always means: you have to wait manually.
+ */
+ if (errno == EINVAL)
+ {
+ if (timeout)
+ {
+ unsigned long ms = timeout * 1e3;
+ Sleep (ms ? ms : 1);
+ }
+
+ return;
+ }
+ #endif
+
+ if (errno == EBADF)
+ fd_ebadf (EV_A);
+ else if (errno == ENOMEM && !syserr_cb)
+ fd_enomem (EV_A);
+ else if (errno != EINTR)
+ ev_syserr ("(libev) select");
+
+ return;
+ }
+
+#if EV_SELECT_USE_FD_SET
+
+ {
+ int fd;
+
+ for (fd = 0; fd < anfdmax; ++fd)
+ if (anfds [fd].events)
+ {
+ int events = 0;
+ #if EV_SELECT_IS_WINSOCKET
+ SOCKET handle = anfds [fd].handle;
+ #else
+ int handle = fd;
+ #endif
+
+ if (FD_ISSET (handle, (fd_set *)vec_ro)) events |= EV_READ;
+ if (FD_ISSET (handle, (fd_set *)vec_wo)) events |= EV_WRITE;
+ #ifdef _WIN32
+ if (FD_ISSET (handle, (fd_set *)vec_eo)) events |= EV_WRITE;
+ #endif
+
+ if (expect_true (events))
+ fd_event (EV_A_ fd, events);
+ }
+ }
+
+#else
+
+ {
+ int word, bit;
+ for (word = vec_max; word--; )
+ {
+ fd_mask word_r = ((fd_mask *)vec_ro) [word];
+ fd_mask word_w = ((fd_mask *)vec_wo) [word];
+ #ifdef _WIN32
+ word_w |= ((fd_mask *)vec_eo) [word];
+ #endif
+
+ if (word_r || word_w)
+ for (bit = NFDBITS; bit--; )
+ {
+ fd_mask mask = 1UL << bit;
+ int events = 0;
+
+ events |= word_r & mask ? EV_READ : 0;
+ events |= word_w & mask ? EV_WRITE : 0;
+
+ if (expect_true (events))
+ fd_event (EV_A_ word * NFDBITS + bit, events);
+ }
+ }
+ }
+
+#endif
+}
+
+inline_size
+int
+select_init (EV_P_ int flags)
+{
+ backend_mintime = 1e-6;
+ backend_modify = select_modify;
+ backend_poll = select_poll;
+
+#if EV_SELECT_USE_FD_SET
+ vec_ri = ev_malloc (sizeof (fd_set)); FD_ZERO ((fd_set *)vec_ri);
+ vec_ro = ev_malloc (sizeof (fd_set));
+ vec_wi = ev_malloc (sizeof (fd_set)); FD_ZERO ((fd_set *)vec_wi);
+ vec_wo = ev_malloc (sizeof (fd_set));
+ #ifdef _WIN32
+ vec_eo = ev_malloc (sizeof (fd_set));
+ #endif
+#else
+ vec_max = 0;
+ vec_ri = 0;
+ vec_ro = 0;
+ vec_wi = 0;
+ vec_wo = 0;
+ #ifdef _WIN32
+ vec_eo = 0;
+ #endif
+#endif
+
+ return EVBACKEND_SELECT;
+}
+
+inline_size
+void
+select_destroy (EV_P)
+{
+ ev_free (vec_ri);
+ ev_free (vec_ro);
+ ev_free (vec_wi);
+ ev_free (vec_wo);
+ #ifdef _WIN32
+ ev_free (vec_eo);
+ #endif
+}
+
--- /dev/null
+/*
+ * loop member variable declarations
+ *
+ * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#define VARx(type,name) VAR(name, type name)
+
+VARx(ev_tstamp, now_floor) /* last time we refreshed rt_time */
+VARx(ev_tstamp, mn_now) /* monotonic clock "now" */
+VARx(ev_tstamp, rtmn_diff) /* difference realtime - monotonic time */
+
+/* for reverse feeding of events */
+VARx(W *, rfeeds)
+VARx(int, rfeedmax)
+VARx(int, rfeedcnt)
+
+VAR (pendings, ANPENDING *pendings [NUMPRI])
+VAR (pendingmax, int pendingmax [NUMPRI])
+VAR (pendingcnt, int pendingcnt [NUMPRI])
+VARx(int, pendingpri) /* highest priority currently pending */
+VARx(ev_prepare, pending_w) /* dummy pending watcher */
+
+VARx(ev_tstamp, io_blocktime)
+VARx(ev_tstamp, timeout_blocktime)
+
+VARx(int, backend)
+VARx(int, activecnt) /* total number of active events ("refcount") */
+VARx(EV_ATOMIC_T, loop_done) /* signal by ev_break */
+
+VARx(int, backend_fd)
+VARx(ev_tstamp, backend_mintime) /* assumed typical timer resolution */
+VAR (backend_modify, void (*backend_modify)(EV_P_ int fd, int oev, int nev))
+VAR (backend_poll , void (*backend_poll)(EV_P_ ev_tstamp timeout))
+
+VARx(ANFD *, anfds)
+VARx(int, anfdmax)
+
+VAR (evpipe, int evpipe [2])
+VARx(ev_io, pipe_w)
+VARx(EV_ATOMIC_T, pipe_write_wanted)
+VARx(EV_ATOMIC_T, pipe_write_skipped)
+
+#if !defined(_WIN32) || EV_GENWRAP
+VARx(pid_t, curpid)
+#endif
+
+VARx(char, postfork) /* true if we need to recreate kernel state after fork */
+
+#if EV_USE_SELECT || EV_GENWRAP
+VARx(void *, vec_ri)
+VARx(void *, vec_ro)
+VARx(void *, vec_wi)
+VARx(void *, vec_wo)
+#if defined(_WIN32) || EV_GENWRAP
+VARx(void *, vec_eo)
+#endif
+VARx(int, vec_max)
+#endif
+
+#if EV_USE_POLL || EV_GENWRAP
+VARx(struct pollfd *, polls)
+VARx(int, pollmax)
+VARx(int, pollcnt)
+VARx(int *, pollidxs) /* maps fds into structure indices */
+VARx(int, pollidxmax)
+#endif
+
+#if EV_USE_EPOLL || EV_GENWRAP
+VARx(struct epoll_event *, epoll_events)
+VARx(int, epoll_eventmax)
+VARx(int *, epoll_eperms)
+VARx(int, epoll_epermcnt)
+VARx(int, epoll_epermmax)
+#endif
+
+#if EV_USE_KQUEUE || EV_GENWRAP
+VARx(pid_t, kqueue_fd_pid)
+VARx(struct kevent *, kqueue_changes)
+VARx(int, kqueue_changemax)
+VARx(int, kqueue_changecnt)
+VARx(struct kevent *, kqueue_events)
+VARx(int, kqueue_eventmax)
+#endif
+
+#if EV_USE_PORT || EV_GENWRAP
+VARx(struct port_event *, port_events)
+VARx(int, port_eventmax)
+#endif
+
+#if EV_USE_IOCP || EV_GENWRAP
+VARx(HANDLE, iocp)
+#endif
+
+VARx(int *, fdchanges)
+VARx(int, fdchangemax)
+VARx(int, fdchangecnt)
+
+VARx(ANHE *, timers)
+VARx(int, timermax)
+VARx(int, timercnt)
+
+#if EV_PERIODIC_ENABLE || EV_GENWRAP
+VARx(ANHE *, periodics)
+VARx(int, periodicmax)
+VARx(int, periodiccnt)
+#endif
+
+#if EV_IDLE_ENABLE || EV_GENWRAP
+VAR (idles, ev_idle **idles [NUMPRI])
+VAR (idlemax, int idlemax [NUMPRI])
+VAR (idlecnt, int idlecnt [NUMPRI])
+#endif
+VARx(int, idleall) /* total number */
+
+VARx(struct ev_prepare **, prepares)
+VARx(int, preparemax)
+VARx(int, preparecnt)
+
+VARx(struct ev_check **, checks)
+VARx(int, checkmax)
+VARx(int, checkcnt)
+
+#if EV_FORK_ENABLE || EV_GENWRAP
+VARx(struct ev_fork **, forks)
+VARx(int, forkmax)
+VARx(int, forkcnt)
+#endif
+
+#if EV_CLEANUP_ENABLE || EV_GENWRAP
+VARx(struct ev_cleanup **, cleanups)
+VARx(int, cleanupmax)
+VARx(int, cleanupcnt)
+#endif
+
+#if EV_ASYNC_ENABLE || EV_GENWRAP
+VARx(EV_ATOMIC_T, async_pending)
+VARx(struct ev_async **, asyncs)
+VARx(int, asyncmax)
+VARx(int, asynccnt)
+#endif
+
+#if EV_USE_INOTIFY || EV_GENWRAP
+VARx(int, fs_fd)
+VARx(ev_io, fs_w)
+VARx(char, fs_2625) /* whether we are running in linux 2.6.25 or newer */
+VAR (fs_hash, ANFS fs_hash [EV_INOTIFY_HASHSIZE])
+#endif
+
+VARx(EV_ATOMIC_T, sig_pending)
+#if EV_USE_SIGNALFD || EV_GENWRAP
+VARx(int, sigfd)
+VARx(ev_io, sigfd_w)
+VARx(sigset_t, sigfd_set)
+#endif
+
+VARx(unsigned int, origflags) /* original loop flags */
+
+#if EV_FEATURE_API || EV_GENWRAP
+VARx(unsigned int, loop_count) /* total number of loop iterations/blocks */
+VARx(unsigned int, loop_depth) /* #ev_run enters - #ev_run leaves */
+
+VARx(void *, userdata)
+/* C++ doesn't support the ev_loop_callback typedef here. stinks. */
+VAR (release_cb, void (*release_cb)(EV_P) EV_NOEXCEPT)
+VAR (acquire_cb, void (*acquire_cb)(EV_P) EV_NOEXCEPT)
+VAR (invoke_cb , ev_loop_callback invoke_cb)
+#endif
+
+#undef VARx
+
--- /dev/null
+/*
+ * libev win32 compatibility cruft (_not_ a backend)
+ *
+ * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.
+ */
+
+#ifdef _WIN32
+
+/* note: the comment below could not be substantiated, but what would I care */
+/* MSDN says this is required to handle SIGFPE */
+/* my wild guess would be that using something floating-pointy is required */
+/* for the crt to do something about it */
+volatile double SIGFPE_REQ = 0.0f;
+
+static SOCKET
+ev_tcp_socket (void)
+{
+#if EV_USE_WSASOCKET
+ return WSASocket (AF_INET, SOCK_STREAM, 0, 0, 0, 0);
+#else
+ return socket (AF_INET, SOCK_STREAM, 0);
+#endif
+}
+
+/* oh, the humanity! */
+static int
+ev_pipe (int filedes [2])
+{
+ struct sockaddr_in addr = { 0 };
+ int addr_size = sizeof (addr);
+ struct sockaddr_in adr2;
+ int adr2_size = sizeof (adr2);
+ SOCKET listener;
+ SOCKET sock [2] = { -1, -1 };
+
+ if ((listener = ev_tcp_socket ()) == INVALID_SOCKET)
+ return -1;
+
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ addr.sin_port = 0;
+
+ if (bind (listener, (struct sockaddr *)&addr, addr_size))
+ goto fail;
+
+ if (getsockname (listener, (struct sockaddr *)&addr, &addr_size))
+ goto fail;
+
+ if (listen (listener, 1))
+ goto fail;
+
+ if ((sock [0] = ev_tcp_socket ()) == INVALID_SOCKET)
+ goto fail;
+
+ if (connect (sock [0], (struct sockaddr *)&addr, addr_size))
+ goto fail;
+
+ /* TODO: returns INVALID_SOCKET on winsock accept, not < 0. fix it */
+ /* when convenient, probably by just removing error checking altogether? */
+ if ((sock [1] = accept (listener, 0, 0)) < 0)
+ goto fail;
+
+ /* windows vista returns fantasy port numbers for sockets:
+ * example for two interconnected tcp sockets:
+ *
+ * (Socket::unpack_sockaddr_in getsockname $sock0)[0] == 53364
+ * (Socket::unpack_sockaddr_in getpeername $sock0)[0] == 53363
+ * (Socket::unpack_sockaddr_in getsockname $sock1)[0] == 53363
+ * (Socket::unpack_sockaddr_in getpeername $sock1)[0] == 53365
+ *
+ * wow! tridirectional sockets!
+ *
+ * this way of checking ports seems to work:
+ */
+ if (getpeername (sock [0], (struct sockaddr *)&addr, &addr_size))
+ goto fail;
+
+ if (getsockname (sock [1], (struct sockaddr *)&adr2, &adr2_size))
+ goto fail;
+
+ errno = WSAEINVAL;
+ if (addr_size != adr2_size
+ || addr.sin_addr.s_addr != adr2.sin_addr.s_addr /* just to be sure, I mean, it's windows */
+ || addr.sin_port != adr2.sin_port)
+ goto fail;
+
+ closesocket (listener);
+
+#if EV_SELECT_IS_WINSOCKET
+ filedes [0] = EV_WIN32_HANDLE_TO_FD (sock [0]);
+ filedes [1] = EV_WIN32_HANDLE_TO_FD (sock [1]);
+#else
+ /* when select isn't winsocket, we also expect socket, connect, accept etc.
+ * to work on fds */
+ filedes [0] = sock [0];
+ filedes [1] = sock [1];
+#endif
+
+ return 0;
+
+fail:
+ closesocket (listener);
+
+ if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
+ if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
+
+ return -1;
+}
+
+#undef pipe
+#define pipe(filedes) ev_pipe (filedes)
+
+#define EV_HAVE_EV_TIME 1
+ev_tstamp
+ev_time (void)
+{
+ FILETIME ft;
+ ULARGE_INTEGER ui;
+
+ GetSystemTimeAsFileTime (&ft);
+ ui.u.LowPart = ft.dwLowDateTime;
+ ui.u.HighPart = ft.dwHighDateTime;
+
+ /* msvc cannot convert ulonglong to double... yes, it is that sucky */
+ return (LONGLONG)(ui.QuadPart - 116444736000000000) * 1e-7;
+}
+
+#endif
+
--- /dev/null
+/* DO NOT EDIT, automatically generated by update_ev_wrap */
+#ifndef EV_WRAP_H
+#define EV_WRAP_H
+#define acquire_cb ((loop)->acquire_cb)
+#define activecnt ((loop)->activecnt)
+#define anfdmax ((loop)->anfdmax)
+#define anfds ((loop)->anfds)
+#define async_pending ((loop)->async_pending)
+#define asynccnt ((loop)->asynccnt)
+#define asyncmax ((loop)->asyncmax)
+#define asyncs ((loop)->asyncs)
+#define backend ((loop)->backend)
+#define backend_fd ((loop)->backend_fd)
+#define backend_mintime ((loop)->backend_mintime)
+#define backend_modify ((loop)->backend_modify)
+#define backend_poll ((loop)->backend_poll)
+#define checkcnt ((loop)->checkcnt)
+#define checkmax ((loop)->checkmax)
+#define checks ((loop)->checks)
+#define cleanupcnt ((loop)->cleanupcnt)
+#define cleanupmax ((loop)->cleanupmax)
+#define cleanups ((loop)->cleanups)
+#define curpid ((loop)->curpid)
+#define epoll_epermcnt ((loop)->epoll_epermcnt)
+#define epoll_epermmax ((loop)->epoll_epermmax)
+#define epoll_eperms ((loop)->epoll_eperms)
+#define epoll_eventmax ((loop)->epoll_eventmax)
+#define epoll_events ((loop)->epoll_events)
+#define evpipe ((loop)->evpipe)
+#define fdchangecnt ((loop)->fdchangecnt)
+#define fdchangemax ((loop)->fdchangemax)
+#define fdchanges ((loop)->fdchanges)
+#define forkcnt ((loop)->forkcnt)
+#define forkmax ((loop)->forkmax)
+#define forks ((loop)->forks)
+#define fs_2625 ((loop)->fs_2625)
+#define fs_fd ((loop)->fs_fd)
+#define fs_hash ((loop)->fs_hash)
+#define fs_w ((loop)->fs_w)
+#define idleall ((loop)->idleall)
+#define idlecnt ((loop)->idlecnt)
+#define idlemax ((loop)->idlemax)
+#define idles ((loop)->idles)
+#define invoke_cb ((loop)->invoke_cb)
+#define io_blocktime ((loop)->io_blocktime)
+#define iocp ((loop)->iocp)
+#define kqueue_changecnt ((loop)->kqueue_changecnt)
+#define kqueue_changemax ((loop)->kqueue_changemax)
+#define kqueue_changes ((loop)->kqueue_changes)
+#define kqueue_eventmax ((loop)->kqueue_eventmax)
+#define kqueue_events ((loop)->kqueue_events)
+#define kqueue_fd_pid ((loop)->kqueue_fd_pid)
+#define loop_count ((loop)->loop_count)
+#define loop_depth ((loop)->loop_depth)
+#define loop_done ((loop)->loop_done)
+#define mn_now ((loop)->mn_now)
+#define now_floor ((loop)->now_floor)
+#define origflags ((loop)->origflags)
+#define pending_w ((loop)->pending_w)
+#define pendingcnt ((loop)->pendingcnt)
+#define pendingmax ((loop)->pendingmax)
+#define pendingpri ((loop)->pendingpri)
+#define pendings ((loop)->pendings)
+#define periodiccnt ((loop)->periodiccnt)
+#define periodicmax ((loop)->periodicmax)
+#define periodics ((loop)->periodics)
+#define pipe_w ((loop)->pipe_w)
+#define pipe_write_skipped ((loop)->pipe_write_skipped)
+#define pipe_write_wanted ((loop)->pipe_write_wanted)
+#define pollcnt ((loop)->pollcnt)
+#define pollidxmax ((loop)->pollidxmax)
+#define pollidxs ((loop)->pollidxs)
+#define pollmax ((loop)->pollmax)
+#define polls ((loop)->polls)
+#define port_eventmax ((loop)->port_eventmax)
+#define port_events ((loop)->port_events)
+#define postfork ((loop)->postfork)
+#define preparecnt ((loop)->preparecnt)
+#define preparemax ((loop)->preparemax)
+#define prepares ((loop)->prepares)
+#define release_cb ((loop)->release_cb)
+#define rfeedcnt ((loop)->rfeedcnt)
+#define rfeedmax ((loop)->rfeedmax)
+#define rfeeds ((loop)->rfeeds)
+#define rtmn_diff ((loop)->rtmn_diff)
+#define sig_pending ((loop)->sig_pending)
+#define sigfd ((loop)->sigfd)
+#define sigfd_set ((loop)->sigfd_set)
+#define sigfd_w ((loop)->sigfd_w)
+#define timeout_blocktime ((loop)->timeout_blocktime)
+#define timercnt ((loop)->timercnt)
+#define timermax ((loop)->timermax)
+#define timers ((loop)->timers)
+#define userdata ((loop)->userdata)
+#define vec_eo ((loop)->vec_eo)
+#define vec_max ((loop)->vec_max)
+#define vec_ri ((loop)->vec_ri)
+#define vec_ro ((loop)->vec_ro)
+#define vec_wi ((loop)->vec_wi)
+#define vec_wo ((loop)->vec_wo)
+#else
+#undef EV_WRAP_H
+#undef acquire_cb
+#undef activecnt
+#undef anfdmax
+#undef anfds
+#undef async_pending
+#undef asynccnt
+#undef asyncmax
+#undef asyncs
+#undef backend
+#undef backend_fd
+#undef backend_mintime
+#undef backend_modify
+#undef backend_poll
+#undef checkcnt
+#undef checkmax
+#undef checks
+#undef cleanupcnt
+#undef cleanupmax
+#undef cleanups
+#undef curpid
+#undef epoll_epermcnt
+#undef epoll_epermmax
+#undef epoll_eperms
+#undef epoll_eventmax
+#undef epoll_events
+#undef evpipe
+#undef fdchangecnt
+#undef fdchangemax
+#undef fdchanges
+#undef forkcnt
+#undef forkmax
+#undef forks
+#undef fs_2625
+#undef fs_fd
+#undef fs_hash
+#undef fs_w
+#undef idleall
+#undef idlecnt
+#undef idlemax
+#undef idles
+#undef invoke_cb
+#undef io_blocktime
+#undef iocp
+#undef kqueue_changecnt
+#undef kqueue_changemax
+#undef kqueue_changes
+#undef kqueue_eventmax
+#undef kqueue_events
+#undef kqueue_fd_pid
+#undef loop_count
+#undef loop_depth
+#undef loop_done
+#undef mn_now
+#undef now_floor
+#undef origflags
+#undef pending_w
+#undef pendingcnt
+#undef pendingmax
+#undef pendingpri
+#undef pendings
+#undef periodiccnt
+#undef periodicmax
+#undef periodics
+#undef pipe_w
+#undef pipe_write_skipped
+#undef pipe_write_wanted
+#undef pollcnt
+#undef pollidxmax
+#undef pollidxs
+#undef pollmax
+#undef polls
+#undef port_eventmax
+#undef port_events
+#undef postfork
+#undef preparecnt
+#undef preparemax
+#undef prepares
+#undef release_cb
+#undef rfeedcnt
+#undef rfeedmax
+#undef rfeeds
+#undef rtmn_diff
+#undef sig_pending
+#undef sigfd
+#undef sigfd_set
+#undef sigfd_w
+#undef timeout_blocktime
+#undef timercnt
+#undef timermax
+#undef timers
+#undef userdata
+#undef vec_eo
+#undef vec_max
+#undef vec_ri
+#undef vec_ro
+#undef vec_wi
+#undef vec_wo
+#endif
projects / rspamd.git / commitdiff