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author | Constantin Kaplinsky <const@tightvnc.com> | 2006-05-25 05:12:25 +0000 |
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committer | Constantin Kaplinsky <const@tightvnc.com> | 2006-05-25 05:12:25 +0000 |
commit | 729598cb00d791bbdfe23ebe0023d3a1c3962f83 (patch) | |
tree | ffe1b87705a0541998b8d7c44ea75dc4702dc515 /win/rfb_win32/EventManager.cxx | |
parent | b30ae7facbdf8273f34f5d67d3d2e9c81db75576 (diff) | |
download | tigervnc-729598cb00d791bbdfe23ebe0023d3a1c3962f83.tar.gz tigervnc-729598cb00d791bbdfe23ebe0023d3a1c3962f83.zip |
Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@591 3789f03b-4d11-0410-bbf8-ca57d06f2519
Diffstat (limited to 'win/rfb_win32/EventManager.cxx')
-rw-r--r-- | win/rfb_win32/EventManager.cxx | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/win/rfb_win32/EventManager.cxx b/win/rfb_win32/EventManager.cxx new file mode 100644 index 00000000..0f9993b7 --- /dev/null +++ b/win/rfb_win32/EventManager.cxx @@ -0,0 +1,103 @@ +/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +#include <rfb_win32/EventManager.h> +#include <rdr/Exception.h> +#include <rfb/LogWriter.h> + +using namespace rfb; +using namespace rfb::win32; + +static LogWriter vlog("EventManager"); + + +EventManager::EventManager() : eventCount(0) { +} + +EventManager::~EventManager() { +} + + +bool EventManager::addEvent(HANDLE event, EventHandler* ecb) { + if (eventCount >= MAXIMUM_WAIT_OBJECTS-1) + return false; + events[eventCount] = event; + handlers[eventCount] = ecb; + eventCount++; + return true; +} + +void EventManager::removeEvent(HANDLE event) { + for (int i=0; i<eventCount; i++) { + if (events[i] == event) { + for (int j=i; j<eventCount-1; j++) { + events[j] = events[j+1]; + handlers[j] = handlers[j+1]; + } + eventCount--; + return; + } + } + throw rdr::Exception("Event not registered"); +} + + +int EventManager::checkTimeouts() { + return 0; +} + +BOOL EventManager::getMessage(MSG* msg, HWND hwnd, UINT minMsg, UINT maxMsg) { + while (true) { + // - Process any pending timeouts + DWORD timeout = checkTimeouts(); + if (timeout == 0) + timeout = INFINITE; + + // - Events take precedence over messages + DWORD result; + if (eventCount) { + // - Check whether any events are set + result = WaitForMultipleObjects(eventCount, events, FALSE, 0); + if (result == WAIT_TIMEOUT) { + // - No events are set, so check for messages + if (PeekMessage(msg, hwnd, minMsg, maxMsg, PM_REMOVE)) + return msg->message != WM_QUIT; + + // - Block waiting for an event to be set, or a message + result = MsgWaitForMultipleObjects(eventCount, events, FALSE, timeout, + QS_ALLINPUT); + if (result == WAIT_OBJECT_0 + eventCount) { + // - Return the message, if any + if (PeekMessage(msg, hwnd, minMsg, maxMsg, PM_REMOVE)) + return msg->message != WM_QUIT; + continue; + } + } + } else + return GetMessage(msg, hwnd, minMsg, maxMsg); + + if ((result >= WAIT_OBJECT_0) && (result < (WAIT_OBJECT_0 + eventCount))) { + // - An event was set - call the handler + int index = result - WAIT_OBJECT_0; + handlers[index]->processEvent(events[index]); + } else if (result == WAIT_FAILED) { + // - An error has occurred, so return the error status code + return -1; + } + } +} |