[Minor] Show used loop backend

diff --git a/src/rspamd.c b/src/rspamd.c
index 2c27b85cce2a127db570738b1faaf91eb5b5bf22..fa6bd55b3c6da801580c1004d049f93383d8e3fc 100644 (file)
--- a/src/rspamd.c
+++ b/src/rspamd.c
@@ -59,6 +59,8 @@
 #ifdef HAVE_OPENSSL
 #include <openssl/err.h>
 #include <openssl/evp.h>
+#include <ev.h>
+
 #endif
 
 #include "sqlite3.h"
@@ -1393,6 +1395,51 @@ main (gint argc, gchar **argv, gchar **env)
        /* Init event base */
        event_loop = ev_default_loop (EVFLAG_SIGNALFD|EVBACKEND_ALL);
        rspamd_main->event_loop = event_loop;
+
+       if (event_loop) {
+               unsigned loop_type = ev_backend (event_loop);
+               const gchar *loop_str = "unknown";
+               gboolean poor_backend = TRUE;
+
+               switch (loop_type) {
+               case EVBACKEND_EPOLL:
+                       loop_str = "epoll";
+                       poor_backend = FALSE;
+                       break;
+               case EVBACKEND_POLL:
+                       loop_str = "poll";
+                       break;
+               case EVBACKEND_SELECT:
+                       loop_str = "select";
+                       break;
+               case EVBACKEND_KQUEUE:
+                       loop_str = "kqueue";
+                       poor_backend = FALSE;
+                       break;
+               case EVBACKEND_PORT:
+                       loop_str = "port";
+                       poor_backend = FALSE;
+                       break;
+               case EVBACKEND_DEVPOLL:
+                       loop_str = "/dev/poll";
+                       poor_backend = FALSE;
+                       break;
+               default:
+                       break;
+               }
+
+               if (poor_backend) {
+                       msg_warn_main ("event loop uses non-optimal backend: %s", loop_str);
+               }
+               else {
+                       msg_info_main ("event loop initialised with backend: %s", loop_str);
+               }
+       }
+       else {
+               msg_err ("cannot init event loop! exiting");
+               exit (EXIT_FAILURE);
+       }
+
        /* Unblock signals */
        sigemptyset (&signals.sa_mask);
        sigprocmask (SIG_SETMASK, &signals.sa_mask, NULL);