fixed: events were added before event queue was ready, caused debug build assert failure.

removed sleep hack in favour of cond var wait.

src/lib/base/EventQueue.cpp

@@ -18,12 +18,15 @@
 
 #include "base/EventQueue.h"
 
+#include "mt/Mutex.h"
+#include "mt/Lock.h"
 #include "arch/Arch.h"
-#include "base/Log.h"
 #include "base/SimpleEventQueueBuffer.h"
 #include "base/Stopwatch.h"
 #include "base/IEventJob.h"
 #include "base/EventTypes.h"
+#include "base/Log.h"
+#include "base/XBase.h"
 
 EVENT_TYPE_ACCESSOR(CClient)
 EVENT_TYPE_ACCESSOR(IStream)
@@ -78,7 +81,9 @@ CEventQueue::CEventQueue() :
 	m_typesForCServerApp(NULL),
 	m_typesForIKeyState(NULL),
 	m_typesForIPrimaryScreen(NULL),
-	m_typesForIScreen(NULL)
+	m_typesForIScreen(NULL),
+	m_readyMutex(new CMutex),
+	m_readyCondVar(new CCondVar<bool>(m_readyMutex, false))
 {
 	m_mutex = ARCH->newMutex();
 	ARCH->setSignalHandler(CArch::kINTERRUPT, &interrupt, this);
@@ -89,6 +94,9 @@ CEventQueue::CEventQueue() :
 CEventQueue::~CEventQueue()
 {
 	delete m_buffer;
+	delete m_readyCondVar;
+	delete m_readyMutex;
+	
 	ARCH->setSignalHandler(CArch::kINTERRUPT, NULL, NULL);
 	ARCH->setSignalHandler(CArch::kTERMINATE, NULL, NULL);
 	ARCH->closeMutex(m_mutex);
@@ -98,6 +106,16 @@ void
 CEventQueue::loop()
 {
 	m_buffer->init();
+	*m_readyCondVar = true;
+	m_readyCondVar->broadcast();
+	
+	LOG((CLOG_DEBUG "event queue is ready"));
+	while (!m_pending.empty()) {
+		LOG((CLOG_DEBUG "add pending events to buffer"));
+		CEvent& event = m_pending.front();
+		addEventToBuffer(event);
+		m_pending.pop();
+	}
 	
 	CEvent event;
 	getEvent(event);
@@ -268,7 +286,17 @@ CEventQueue::addEvent(const CEvent& event)
 		dispatchEvent(event);
 		CEvent::deleteData(event);
 	}
+	else if (!(*m_readyCondVar)) {
+		m_pending.push(event);
+	}
 	else {
+		addEventToBuffer(event);
+	}
+}
+
+void
+CEventQueue::addEventToBuffer(const CEvent& event)
+{
 	CArchMutexLock lock(m_mutex);
 	
 	// store the event's data locally
@@ -280,7 +308,6 @@ CEventQueue::addEvent(const CEvent& event)
 		removeEvent(eventID);
 		CEvent::deleteData(event);
 	}
-	}
 }
 
 CEventQueueTimer*
@@ -526,6 +553,21 @@ CEventQueue::getSystemTarget()
 	return &m_systemTarget;
 }
 
+void
+CEventQueue::waitForReady() const
+{
+	double timeout = ARCH->time() + 5;
+	m_readyCondVar->lock();
+	
+	while (!m_readyCondVar->wait()) {
+		if(ARCH->time() > timeout) {
+			throw std::runtime_error("event queue is not ready within 5 sec");
+		}
+	}
+	
+	m_readyCondVar->unlock();
+}
+
 //
 // CEventQueue::CTimer
 //

src/lib/base/EventQueue.h

@@ -18,14 +18,19 @@
 
 #pragma once
 
+#include "mt/CondVar.h"
+#include "arch/IArchMultithread.h"
 #include "base/IEventQueue.h"
 #include "base/Event.h"
 #include "base/PriorityQueue.h"
 #include "base/Stopwatch.h"
-#include "arch/IArchMultithread.h"
 #include "common/stdmap.h"
 #include "common/stdset.h"
 
+#include <queue>
+
+class CMutex;
+
 //! Event queue
 /*!
 An event queue that implements the platform independent parts and
@@ -59,12 +64,14 @@ public:
 	virtual CEvent::Type
 						getRegisteredType(const CString& name) const;
 	void*				getSystemTarget();
+	virtual void		waitForReady() const;
 
 private:
 	UInt32				saveEvent(const CEvent& event);
 	CEvent				removeEvent(UInt32 eventID);
 	bool				hasTimerExpired(CEvent& event);
 	double				getNextTimerTimeout() const;
+	void				addEventToBuffer(const CEvent& event);
 	
 private:
 	class CTimer {
@@ -170,6 +177,9 @@ private:
 	IKeyStateEvents*			m_typesForIKeyState;
 	IPrimaryScreenEvents*		m_typesForIPrimaryScreen;
 	IScreenEvents*				m_typesForIScreen;
+	CMutex*						m_readyMutex;
+	CCondVar<bool>*				m_readyCondVar;
+	std::queue<const CEvent>	m_pending;
 };
 
 #define EVENT_TYPE_ACCESSOR(type_)											\

src/lib/base/IEventQueue.h

@@ -176,6 +176,13 @@ public:
 						registerTypeOnce(CEvent::Type& type,
 							const char* name) = 0;
 
+	//! Wait for event queue to become ready
+	/*!
+	Blocks on the current thread until the event queue is ready for events to
+	be added.
+	*/
+	virtual void		waitForReady() const = 0;
+	
 	//@}
 	//! @name accessors
 	//@{

src/lib/platform/OSXDragSimulator.m

@@ -28,9 +28,6 @@ COSXDragView* g_dragView = NULL;
 void
 runCocoaApp()
 {
-	// HACK: sleep, carbon loop should start first.
-	usleep(1000000);
-	
 	NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
 	
 	[NSApplication sharedApplication];

src/lib/platform/OSXScreen.cpp

@@ -18,6 +18,7 @@
 
 #include "platform/OSXScreen.h"
 
+#include "base/EventQueue.h"
 #include "client/Client.h"
 #include "platform/OSXClipboard.h"
 #include "platform/OSXEventQueueBuffer.h"
@@ -163,6 +164,10 @@ COSXScreen::COSXScreen(IEventQueue* events, bool isPrimary, bool autoShowHideCur
 
 		// create thread for monitoring system power state.
 		*m_pmThreadReady = false;
+#if defined(MAC_OS_X_VERSION_10_7)
+		m_carbonLoopMutex = new CMutex();
+		m_carbonLoopReady = new CCondVar<bool>(m_carbonLoopMutex, false);
+#endif
 		LOG((CLOG_DEBUG "starting watchSystemPowerThread"));
 		m_pmWatchThread = new CThread(new TMethodJob<COSXScreen>
 								(this, &COSXScreen::watchSystemPowerThread));
@@ -255,6 +260,11 @@ COSXScreen::~COSXScreen()
 
 	delete m_keyState;
 	delete m_screensaver;
+	
+#if defined(MAC_OS_X_VERSION_10_7)
+	delete m_carbonLoopMutex;
+	delete m_carbonLoopReady;
+#endif
 }
 
 void*
@@ -1695,8 +1705,14 @@ COSXScreen::watchSystemPowerThread(void*)
 
 	LOG((CLOG_DEBUG "started watchSystemPowerThread"));
 
-	// HACK: sleep, this seem to stop synergy from freezing.
-	ARCH->sleep(1);
+	m_events->waitForReady();
+    
+#if defined(MAC_OS_X_VERSION_10_7)
+	if (*m_carbonLoopReady == false) {
+		*m_carbonLoopReady = true;
+		m_carbonLoopReady->broadcast();
+	}
+#endif
 	
 	// start the run loop
 	LOG((CLOG_DEBUG "starting carbon loop"));
@@ -2100,6 +2116,21 @@ COSXScreen::getDraggingFilename()
 	return m_draggingFilename;
 }
 
+void
+COSXScreen::waitForCarbonLoop() const
+{
+	double timeout = ARCH->time() + 5;
+	m_carbonLoopReady->lock();
+	
+	while (!m_carbonLoopReady->wait()) {
+		if(ARCH->time() > timeout) {
+			throw std::runtime_error("carbon loop is not ready within 5 sec");
+		}
+	}
+	
+	m_carbonLoopReady->unlock();
+}
+
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 
 void

src/lib/platform/OSXScreen.h

@@ -47,6 +47,7 @@ class CThread;
 class COSXKeyState;
 class COSXScreenSaver;
 class IEventQueue;
+class CMutex;
 
 //! Implementation of IPlatformScreen for OS X
 class COSXScreen : public CPlatformScreen {
@@ -98,6 +99,7 @@ public:
 	virtual CString&	getDraggingFilename();
 	
 	const CString&		getDropTarget() const { return m_dropTarget; }
+	void				waitForCarbonLoop() const;
 	
 protected:
 	// IPlatformScreen overrides
@@ -344,4 +346,9 @@ private:
 	
 	CThread*				m_getDropTargetThread;
 	CString					m_dropTarget;
+	
+#if defined(MAC_OS_X_VERSION_10_7)
+	CMutex*					m_carbonLoopMutex;
+	CCondVar<bool>*			m_carbonLoopReady;
+#endif
 };

src/lib/synergy/ClientApp.cpp

@@ -548,8 +548,10 @@ CClientApp::mainLoop()
 			this, &CClientApp::runEventsLoop,
 			NULL));
 	
-	// HACK: sleep, allow queue to start.
-	ARCH->sleep(1);
+	// wait until carbon loop is ready
+	COSXScreen* screen = dynamic_cast<COSXScreen*>(
+		s_clientScreen->getPlatformScreen());
+	screen->waitForCarbonLoop();
 	
 	runCocoaApp();
 #else

src/lib/synergy/Screen.h

@@ -297,6 +297,8 @@ public:
 							SInt32& width, SInt32& height) const;
 	virtual void		getCursorPos(SInt32& x, SInt32& y) const;
 	
+	IPlatformScreen*	getPlatformScreen() { return m_screen; }
+
 protected:
 	void				enablePrimary();
 	void				enableSecondary();

src/lib/synergy/ServerApp.cpp

@@ -798,8 +798,10 @@ CServerApp::mainLoop()
 			this, &CServerApp::runEventsLoop,
 			NULL));
 	
-	// HACK: sleep, allow queue to start.
-	ARCH->sleep(1);
+	// wait until carbon loop is ready
+	COSXScreen* screen = dynamic_cast<COSXScreen*>(
+		s_serverScreen->getPlatformScreen());
+	screen->waitForCarbonLoop();
 	
 	runCocoaApp();
 #else

src/test/mock/synergy/MockEventQueue.h

@@ -61,4 +61,5 @@ public:
 	MOCK_METHOD0(forIKeyState, IKeyStateEvents&());
 	MOCK_METHOD0(forIPrimaryScreen, IPrimaryScreenEvents&());
 	MOCK_METHOD0(forIScreen, IScreenEvents&());
+	MOCK_CONST_METHOD0(waitForReady, void());
 };