Initial

thread/THTIMER.CPP

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+#include <thread/thtimer.hpp>
+
+ThreadTimer::ThreadTimer(void)
+: mMinResolution(0), mIsOkay(FALSE), mHasTimedEvent(FALSE), mTimerID(0), mIsFirstBreak(TRUE)
+{
+	if(::timeGetDevCaps(&mTimerCapability,sizeof(TIMECAPS)))return;
+  mMinResolution=mTimerCapability.wPeriodMin;
+	if(::timeBeginPeriod(mMinResolution))return;
+  mIsOkay=TRUE;
+}
+
+ThreadTimer::ThreadTimer(WORD minResolution)
+: mMinResolution(minResolution), mIsOkay(FALSE), mHasTimedEvent(FALSE), mTimerID(0), mIsFirstBreak(TRUE)
+{
+	if(::timeGetDevCaps(&mTimerCapability,sizeof(TIMECAPS)))return;
+  if(mMinResolution<mTimerCapability.wPeriodMin)mMinResolution=mTimerCapability.wPeriodMin;
+	if(::timeBeginPeriod(mMinResolution))return;
+  mIsOkay=TRUE;
+}
+
+ThreadTimer::~ThreadTimer()
+{
+	if(mIsOkay){stopTimer();::timeEndPeriod(mMinResolution);}
+	mTimerMutex.requestMutex();
+	mTimerMutex.releaseMutex();
+}
+
+WORD ThreadTimer::startTimer(UINT deltaTime)
+{
+	if(!mIsOkay)return FALSE;
+	if(mHasTimedEvent)return FALSE;
+	isFirstBreak(TRUE);
+	if(0==(mTimerID=::timeSetEvent(deltaTime,mMinResolution,(LPTIMECALLBACK)timerProc,(DWORD)this,TIME_PERIODIC)))return FALSE;
+  mHasTimedEvent=TRUE;
+  return TRUE;
+}
+
+WORD ThreadTimer::stopTimer(void)
+{
+	WORD returnCode(FALSE);
+
+	if(!mIsOkay)return returnCode;
+	if(!mHasTimedEvent)return returnCode;
+	if(!::timeKillEvent(mTimerID))returnCode=TRUE;
+	isFirstBreak(FALSE);
+  mHasTimedEvent=FALSE;
+	mTimerID=FALSE;
+  return returnCode;
+}
+
+void CALLBACK ThreadTimer::timerProc(UINT /*wTimerID*/,UINT /*mMsg*/,DWORD dwUser,DWORD /*dummyOne*/,DWORD /*dummyTwo*/)
+{
+	CallbackData callbackData;
+
+	if(!((ThreadTimer*)dwUser))return;
+  ((ThreadTimer*)dwUser)->mTimerMutex.requestMutex();
+	if(((ThreadTimer*)dwUser)->isFirstBreak())
+	{
+	  ((ThreadTimer*)dwUser)->isFirstBreak(FALSE);
+		((ThreadTimer*)dwUser)->timerStarted();
+	}
+	if(((CallbackData::ReturnType)FALSE)==((ThreadTimer*)dwUser)->mCallbackPointer.callback(callbackData))
+	{
+	  ((ThreadTimer*)dwUser)->timerStopped();
+	  ((ThreadTimer*)dwUser)->stopTimer();
+	}
+  ((ThreadTimer*)dwUser)->mTimerMutex.releaseMutex();
+  return;
+}
+
+// virtuals
+
+void ThreadTimer::timerStarted(void)
+{
+  return;
+}
+
+void ThreadTimer::timerStopped(void)
+{
+  return;
+}