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authorConstantin Kaplinsky <const@tightvnc.com>2006-05-25 05:12:25 +0000
committerConstantin Kaplinsky <const@tightvnc.com>2006-05-25 05:12:25 +0000
commit729598cb00d791bbdfe23ebe0023d3a1c3962f83 (patch)
treeffe1b87705a0541998b8d7c44ea75dc4702dc515 /win/rfb_win32/EventManager.cxx
parentb30ae7facbdf8273f34f5d67d3d2e9c81db75576 (diff)
downloadtigervnc-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.cxx103
1 files changed, 103 insertions, 0 deletions
diff --git a/win/rfb_win32/EventManager.cxx b/win/rfb_win32/EventManager.cxx
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+/* 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;
+ }
+ }
+}