OSStatus
MD_CriticalRegionExit(MDCriticalRegionID inCriticalRegionID)
{
MDCriticalRegionDataPtr criticalRegion = (MDCriticalRegionDataPtr)inCriticalRegionID;
MPTaskID currentTaskID = MPCurrentTaskID();
OSStatus err = noErr;
// if we don't own the critical region...
if (currentTaskID != criticalRegion->mMPTaskID)
return kMPInsufficientResourcesErr;
// if we aren't at a depth...
if (criticalRegion->mDepthCount == 0)
return kMPInsufficientResourcesErr;
// un-bump my depth
criticalRegion->mDepthCount--;
// if we just bottomed out...
if (criticalRegion->mDepthCount == 0)
{
// release ownership of the structure
criticalRegion->mMPTaskID = kInvalidID;
// and signal the ready semaphore
err = MPSignalSemaphore(criticalRegion->mMPSemaphoreID);
}
return err;
}
OSStatus
MD_CriticalRegionEnter(MDCriticalRegionID inCriticalRegionID, Duration inTimeout)
{
MDCriticalRegionDataPtr criticalRegion = (MDCriticalRegionDataPtr)inCriticalRegionID;
MPTaskID currentTaskID = MPCurrentTaskID();
OSStatus err = noErr;
if (criticalRegion == NULL)
return paramErr;
// if I'm inside the critical region...
if (currentTaskID == criticalRegion->mMPTaskID)
{
// bump my depth
criticalRegion->mDepthCount++;
// and continue
return noErr;
}
// wait for the ready semaphore
err = MPWaitOnSemaphore(criticalRegion->mMPSemaphoreID, inTimeout);
// we didn't get it. return the error
if (noErr != err) return err;
// we got it!
criticalRegion->mMPTaskID = currentTaskID;
criticalRegion->mDepthCount = 1;
return noErr;
}
cFUThreadRef cFUThread::CurrentThreadID()
{
#if defined(WIN32)
return ::GetCurrentThreadId();
#elif defined (FP_APPLE)
return MPCurrentTaskID();
#elif defined(LINUX) || defined(IOS)|| defined(ANDROID)
return pthread_self();
#endif
}
thread::thread()
: m_joinable(false)
{
#if defined(BOOST_HAS_WINTHREADS)
m_thread = reinterpret_cast<void*>(GetCurrentThread());
m_id = GetCurrentThreadId();
#elif defined(BOOST_HAS_PTHREADS)
m_thread = pthread_self();
#elif defined(BOOST_HAS_MPTASKS)
threads::mac::detail::thread_init();
threads::mac::detail::create_singletons();
m_pTaskID = MPCurrentTaskID();
m_pJoinQueueID = kInvalidID;
#endif
}
unsigned long wxThread::GetCurrentId()
{
return (unsigned long)MPCurrentTaskID();
}
