MAGMA_DLLPORT int MAGMA_CDECL pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) {
int last;
if ( *mutex == PTHREAD_MUTEX_INITIALIZER ) pthread_mutex_check_for_static_initialization( mutex );
/* Avoid race condition on waiting thread counter. */
EnterCriticalSection(&cond->cs);
cond->waitCount++;
LeaveCriticalSection(&cond->cs);
/* Releases _atomically_ the mutex and wait on the semaphore until
pthread_cond_signal() or pthread_cond_broadcast() are called (by another thread). */
SignalObjectAndWait(*mutex, cond->hSem, INFINITE, FALSE);
/* Avoid race condition on waiting thread counter. */
EnterCriticalSection(&cond->cs);
cond->waitCount--; /* this thread doesn't wait any more */
/* if this is the last thread to have waited */
last = cond->waitCount == 0;
LeaveCriticalSection(&cond->cs);
/* If this thread is the last waiter thread during this particular broadcast
then let all the other threads proceed. */
if (last)
/* This call ensures that two things happen atomically: signaling the hEvt event and
waiting until "mutex" can be acquired. */
SignalObjectAndWait(cond->hEvt, *mutex, INFINITE, FALSE);
else
WaitForSingleObject(*mutex, INFINITE); /* Upon return, this thread has to own "mutex". */
return 0;
}
int pthread_cond_timedwait (pthread_cond_t* cv, pthread_mutex_t* external_mutex, timespec* abstime)
{
int last_waiter;
DWORD timeout = 0;
//struct timeval now;
//timespec timenow;
//gettimeofday(&now, NULL);
//timenow.tv_sec = now.tv_sec;
//timenow.tv_nsec = now.tv_usec * 1000;
//timeout = (DWORD)((abstime->tv_sec - timenow.tv_sec) * 1000 + (abstime->tv_nsec - timenow.tv_nsec) / 1000000 + 5);
timeout = (DWORD)((abstime->tv_sec) * 1000 + (abstime->tv_nsec) / 1000000 + 5);
EnterCriticalSection (&cv->waiters_count_lock_);
cv->waiters_count_++;
LeaveCriticalSection (&cv->waiters_count_lock_);
SignalObjectAndWait (*external_mutex, cv->sema_, timeout, FALSE);
EnterCriticalSection (&cv->waiters_count_lock_);
cv->waiters_count_--;
last_waiter = (cv->was_broadcast_ && cv->waiters_count_ == 0);
LeaveCriticalSection (&cv->waiters_count_lock_);
if (last_waiter)
SignalObjectAndWait (cv->waiters_done_, *external_mutex, INFINITE, FALSE);
else
WaitForSingleObject (*external_mutex, INFINITE);
}
status_t wait(WinCondition* condState, HANDLE hMutex, nsecs_t* abstime)
{
// Increment the wait count, avoiding race conditions.
EnterCriticalSection(&condState->waitersCountLock);
condState->waitersCount++;
//printf("+++ wait: incr waitersCount to %d (tid=%ld)\n",
// condState->waitersCount, getThreadId());
LeaveCriticalSection(&condState->waitersCountLock);
DWORD timeout = INFINITE;
if (abstime) {
nsecs_t reltime = *abstime - systemTime();
if (reltime < 0)
reltime = 0;
timeout = reltime/1000000;
}
// Atomically release the external mutex and wait on the semaphore.
DWORD res =
SignalObjectAndWait(hMutex, condState->sema, timeout, FALSE);
//printf("+++ wait: awake (tid=%ld)\n", getThreadId());
// Reacquire lock to avoid race conditions.
EnterCriticalSection(&condState->waitersCountLock);
// No longer waiting.
condState->waitersCount--;
// Check to see if we're the last waiter after a broadcast.
bool lastWaiter = (condState->wasBroadcast && condState->waitersCount == 0);
//printf("+++ wait: lastWaiter=%d (wasBc=%d wc=%d)\n",
// lastWaiter, condState->wasBroadcast, condState->waitersCount);
LeaveCriticalSection(&condState->waitersCountLock);
// If we're the last waiter thread during this particular broadcast
// then signal broadcast() that we're all awake. It'll drop the
// internal mutex.
if (lastWaiter) {
// Atomically signal the "waitersDone" event and wait until we
// can acquire the internal mutex. We want to do this in one step
// because it ensures that everybody is in the mutex FIFO before
// any thread has a chance to run. Without it, another thread
// could wake up, do work, and hop back in ahead of us.
SignalObjectAndWait(condState->waitersDone, condState->internalMutex,
INFINITE, FALSE);
} else {
// Grab the internal mutex.
WaitForSingleObject(condState->internalMutex, INFINITE);
}
// Release the internal and grab the external.
ReleaseMutex(condState->internalMutex);
WaitForSingleObject(hMutex, INFINITE);
return res == WAIT_OBJECT_0 ? NO_ERROR : -1;
}
int pthread_cond_timedwait(pthread_cond_t * cond, pthread_mutex_t * mutex, const struct timespec * abstime) {
DWORD res = 0;
int last_waiter = 0;
PThreadCond * p = (PThreadCond *)*cond;
DWORD timeout = 0;
struct timespec timenow;
if (clock_gettime(p->clock_id, &timenow)) return errno;
if (abstime->tv_sec < timenow.tv_sec) return ETIMEDOUT;
if (abstime->tv_sec == timenow.tv_sec) {
if (abstime->tv_nsec <= timenow.tv_nsec) return ETIMEDOUT;
}
timeout = (DWORD)((abstime->tv_sec - timenow.tv_sec) * 1000 + (abstime->tv_nsec - timenow.tv_nsec) / 1000000 + 5);
EnterCriticalSection(&p->waiters_count_lock);
p->waiters_count++;
LeaveCriticalSection(&p->waiters_count_lock);
/* This call atomically releases the mutex and waits on the */
/* semaphore until <pthread_cond_signal> or <pthread_cond_broadcast> */
/* are called by another thread. */
res = SignalObjectAndWait(*mutex, p->sema, timeout, FALSE);
if (res == WAIT_FAILED) return set_win32_errno(GetLastError());
/* Re-acquire lock to avoid race conditions. */
EnterCriticalSection(&p->waiters_count_lock);
/* We're no longer waiting... */
p->waiters_count--;
/* Check to see if we're the last waiter after <pthread_cond_broadcast>. */
last_waiter = p->was_broadcast && p->waiters_count == 0;
LeaveCriticalSection(&p->waiters_count_lock);
/* If we're the last waiter thread during this particular broadcast */
/* then let all the other threads proceed. */
if (last_waiter) {
/* This call atomically signals the <waiters_done> event and waits until */
/* it can acquire the <mutex>. This is required to ensure fairness. */
DWORD err = SignalObjectAndWait(p->waiters_done, *mutex, INFINITE, FALSE);
if (err == WAIT_FAILED) return set_win32_errno(GetLastError());
}
else {
/* Always regain the external mutex since that's the guarantee we */
/* give to our callers. */
DWORD err = WaitForSingleObject(*mutex, INFINITE);
if (err == WAIT_FAILED) return set_win32_errno(GetLastError());
}
if (res == WAIT_TIMEOUT) return errno = ETIMEDOUT;
assert(res == WAIT_OBJECT_0);
return 0;
}
int pthread_cond_waitImpl (pthread_cond_t *cv,
pthread_mutex_t *external_mutex,
const struct timespec *abstime,
bool infinite)
{
int last_waiter;
DWORD dwMilliseconds = INFINITE;
// Avoid race conditions.
EnterCriticalSection (&cv->waiters_count_lock_);
cv->waiters_count_++;
LeaveCriticalSection (&cv->waiters_count_lock_);
// This call atomically releases the mutex and waits on the
// semaphore until <pthread_cond_signal> or <pthread_cond_broadcast>
// are called by another thread.
if (!infinite && abstime != NULL)
{ dwMilliseconds = abstime->tv_sec * 1000 + abstime->tv_nsec / 1000000; }
SignalObjectAndWait (*external_mutex, cv->sema_, dwMilliseconds, FALSE);
// Reacquire lock to avoid race conditions.
EnterCriticalSection (&cv->waiters_count_lock_);
// We're no longer waiting...
cv->waiters_count_--;
// Check to see if we're the last waiter after <pthread_cond_broadcast>.
last_waiter = cv->was_broadcast_ && cv->waiters_count_ == 0;
LeaveCriticalSection (&cv->waiters_count_lock_);
// If we're the last waiter thread during this particular broadcast
// then let all the other threads proceed.
if (last_waiter)
// This call atomically signals the <waiters_done_> event and waits until
// it can acquire the <external_mutex>.
// This is required to ensure fairness.
SignalObjectAndWait (cv->waiters_done_, *external_mutex, INFINITE, FALSE);
else {
// Always regain the external mutex since that's the guarantee we
// give to our callers.
/* fprintf(stderr, "%s: WaitForSingleObject...\n", __func__); */
WaitForSingleObject (*external_mutex, INFINITE);
/* fprintf(stderr, "... %s: WaitForSingleObject\n", __func__); */
}
return 0;
}
/********************************************************************************************
Function : WaitTimeout
DateTime : 2010/6/10 9:42
Description : 等待条件变量，超时返回
Input : INT mseconds：等待的时间，毫秒
Output : NULL
Return : 返回0成功，其他表示失败
Note : // 备注
********************************************************************************************/
INT CGSCond::WaitTimeout(INT mseconds)
{
#ifdef _WIN32
INT iRet = -1;
if (WaitForSingleObject(m_mutex,mseconds) == WAIT_OBJECT_0)
{
iRet = SignalObjectAndWait(m_mutex, m_GSCond,mseconds,FALSE) == WAIT_OBJECT_0 ? 0 : -1;
ResetEvent(m_GSCond);
}
return iRet;
#elif _LINUX
INT32 iRet = 0;
struct timeval struTimeVal;
struct timespec struTimeSpec;
gettimeofday(&struTimeVal, NULL);
struTimeSpec.tv_sec = mseconds/1000;
struTimeSpec.tv_nsec =1000L *(struTimeVal.tv_usec+(mseconds-struTimeSpec.tv_sec*1000)*1000L);
struTimeSpec.tv_sec += struTimeVal.tv_sec;
m_CondMutex->Lock();
iRet = pthread_cond_timedwait( &m_GSCond, &m_CondMutex->m_GSMutex, &struTimeSpec);
m_CondMutex->Unlock();
return iRet;
#endif
}
void Gamepad_Windows::destroy() {
if (_reader_thread_handle) {
DWORD errcode = ERROR_OBJECT_NOT_FOUND;
if (_input_received_event)
SetEvent(_input_received_event);
if (_thread_exit_event)
errcode = SignalObjectAndWait(_thread_exit_event, _reader_thread_handle, 1000, false);
if (errcode)
TerminateThread(_reader_thread_handle, errcode);
CloseHandle(_reader_thread_handle);
_reader_thread_handle = NULL;
}
if (_input_received_event) {
CloseHandle(_input_received_event);
_input_received_event = NULL;
}
if (_thread_exit_event) {
CloseHandle(_thread_exit_event);
_thread_exit_event = NULL;
}
if (_preparsed) {
hid.HidD_FreePreparsedData(_preparsed);
_preparsed = NULL;
}
if (_notif_handle != NULL) {
UnregisterDeviceNotification(_notif_handle);
_notif_handle = NULL;
}
if (_handle != INVALID_HANDLE_VALUE) {
CloseHandle(_handle);
_handle = INVALID_HANDLE_VALUE;
}
}
void qemu_cond_signal(QemuCond *cond)
{
DWORD result;
/*
* Signal only when there are waiters. cond->waiters is
* incremented by pthread_cond_wait under the external lock,
* so we are safe about that.
*/
if (cond->waiters == 0) {
return;
}
/*
* Waiting threads decrement it outside the external lock, but
* only if another thread is executing pthread_cond_broadcast and
* has the mutex. So, it also cannot be decremented concurrently
* with this particular access.
*/
cond->target = cond->waiters - 1;
result = SignalObjectAndWait(cond->sema, cond->continue_event,
INFINITE, FALSE);
if (result == WAIT_ABANDONED || result == WAIT_FAILED) {
error_exit(GetLastError(), __func__);
}
}
void CPipeServer::Close()
{
// close thread handle
EnterCriticalSection(&m_sInitSafe);
m_bWorking= false;
DWORD dwRes= WAIT_OBJECT_0 +1;
if (m_hThread)
{
if (m_hDone)
dwRes= SignalObjectAndWait(m_hDone, m_hThread, 2000, FALSE);
if (dwRes != WAIT_OBJECT_0)
{
TerminateThread(m_hThread, 0);
DeleteCriticalSection(&m_sPipeSafe); // we do this so that we can enter cc after close, in case it was terminated in cc.
InitializeCriticalSection(&m_sPipeSafe);
}
}
for (size_t i= 0; i<m_aPipes.size();++i)
{
m_pcMemPool->PoolRelease(m_aPipes[i]->pRead);
DecreaseQueue(m_aPipes[i]->ClearQueue());
delete m_aPipes[i];
}
m_aPipes.clear();
if (m_hDone) CloseHandle(m_hDone);
if (m_hThread) CloseHandle(m_hThread);
m_hThread= NULL;
m_hDone= NULL;
m_pcDevice= NULL;
m_pcLogBuffer= NULL;
m_sStream.str(_T(""));
LeaveCriticalSection(&m_sInitSafe);
}
bool_t SIGNAL_WAIT( SIGNAL_T *ref, MUTEX_T *mu_ref, time_d abs_secs ) {
DWORD rc;
long ms;
if (abs_secs<0.0)
ms= INFINITE;
else if (abs_secs==0.0)
ms= 0;
else {
ms= (long) ((abs_secs - now_secs())*1000.0 + 0.5);
// If the time already passed, still try once (ms==0). A short timeout
// may have turned negative or 0 because of the two time samples done.
//
if (ms<0) ms= 0;
}
// Unlock and start a wait, atomically (like condition variables do)
//
rc= SignalObjectAndWait( *mu_ref, // "object to signal" (unlock)
*ref, // "object to wait on"
ms,
FALSE ); // not alertable
// All waiting locks are woken here; each competes for the lock in turn.
//
// Note: We must get the lock even if we've timed out; it makes upper
// level code equivalent to how PThread does it.
//
MUTEX_LOCK(mu_ref);
if (rc==WAIT_TIMEOUT) return FALSE;
if (rc!=0) FAIL( "SignalObjectAndWait", rc );
return TRUE;
}
bool sys::ConditionVarDataWin32::wait(HANDLE externalMutex, double timeout)
{
if (timeout == 0)
{
wait(externalMutex);
return true;
}
// Increment # waiting
{
const ScopedCriticalSection lock(mNumWaitersCS);
++mNumWaiters;
}
// Atomically release the mutex and wait on the semaphore until signal()
// or broadcast() are called by another thread or we time out
switch (SignalObjectAndWait(externalMutex,
mSemaphore,
static_cast<DWORD>(timeout * 1000),
FALSE))
{
case WAIT_OBJECT_0:
waitImpl(externalMutex);
return true;
case WAIT_TIMEOUT:
return false;
default:
throw sys::SystemException("SignalObjectAndWait() failed");
}
}
void sys::ConditionVarDataWin32::waitImpl(HANDLE externalMutex)
{
// Mark that we're no longer waiting
// If we woke up via broadcast(), determine if we're the last waiter
bool lastWaiter;
{
const ScopedCriticalSection lock(mNumWaitersCS);
--mNumWaiters;
lastWaiter = (mWasBroadcast && mNumWaiters == 0);
}
if (lastWaiter)
{
// Atomically signals the mWaitersAreDone event and waits until it can
// acquire the external mutex. This is used to ensure fairness.
/// @note Fairness relies on the fact that Windows NT mutex requests
/// are queued in FIFO order. As a result, all waiting threads
/// will acquire the external mutex before any of them can
/// reacquire it a second time.
/// Need the atomicity of SignalObjectAndWait() here to ensure
/// that the last thread gets his chance to wait on the
/// external mutex.
SignalObjectAndWait(mWaitersAreDone, externalMutex, INFINITE, FALSE);
}
else
{
// We need to wait until we get the external mutex back
WaitForSingleObject(externalMutex, INFINITE);
}
}
/**************************************************************
*
* rngBlkPut - put element into a blocking ring buffer
*
*
* This routine copies n elements from <buffer> into blocking ring buffer
*<rngd>. The specified number of elements will be put into the ring buffer.
*If there is insuffient room the calling task will BLOCK.
*
* RETURNS:
* The number of elements actually put into ring buffer.
*
* Author Greg Brissey 5/26/94
*/
int rngBlkPut(RINGBLK_ID rngd,register long* buffer,register int size)
/* RINGBLK_ID rngd; blocking ring buffer to put data into */
/* long* buffer; buffer to get data from */
/* int size; number of elements to put */
{
register int fromP;
int fbytes;
register int result,i;
DWORD winStatus;
winStatus = WaitForSingleObject(rngd->hMutex, INFINITE);
if (winStatus == WAIT_FAILED) {
return -1;
}
while( (fbytes = (
( (result = ((rngd->pFromBuf - rngd->pToBuf) - 1)) < 0) ?
result + rngd->bufSize : result ) ) < size)
{
/*
printf("rngBlkPut: semGive OK2Read., free bytes: %d \n",fbytes);
*/
rngd->writeBlocked = TRUE;
if (rngd->readBlocked) { /* if read blocked, */
rngd->readBlocked = FALSE;
SetEvent(rngd->hSyncOk2ReadEvent);
}
while( rngd->writeBlocked) {
SignalObjectAndWait(rngd->hMutex, rngd->hSyncOk2WriteEvent, INFINITE, FALSE);
winStatus = WaitForSingleObject(rngd->hMutex, INFINITE);
if (winStatus == WAIT_FAILED) {
return -1;
}
}
}
for (i = 0; i < size; i++)
{
/* this macro inlines the code for speed */
RNG_LONG_PUT(rngd, (buffer[i]), fromP);
}
/* if I just wrote something into the ring buffer & read is block */
/* release the reading because there is now room in the buffer */
if ( (rngd->readBlocked) && ( rngBlkNElem(rngd) > rngd->blkTilNentries) )
{
/* printf("rngBlkGet: OK2Write given.\n"); */
rngd->readBlocked = FALSE;
SetEvent(rngd->hSyncOk2ReadEvent);
}
ReleaseMutex(rngd->hMutex);
return( size );
}
int
ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
ldap_pvt_thread_mutex_t *mutex )
{
SignalObjectAndWait( *mutex, *cond, INFINITE, FALSE );
WaitForSingleObject( *mutex, INFINITE );
return( 0 );
}
void CondVar::Wait(Mutex& externalMutex)
{
#ifdef WIN32
SignalObjectAndWait(externalMutex.mutex,condVarEvent,INFINITE,FALSE);
externalMutex.Lock();
#else
pthread_cond_wait(&condVar,&externalMutex.mutex);
#endif
}
int pthread_cond_wait(pthread_cond_t * cond, pthread_mutex_t * mutex) {
DWORD res = 0;
int last_waiter = 0;
PThreadCond * p = (PThreadCond *)*cond;
EnterCriticalSection(&p->waiters_count_lock);
p->waiters_count++;
LeaveCriticalSection(&p->waiters_count_lock);
/* This call atomically releases the mutex and waits on the */
/* semaphore until <pthread_cond_signal> or <pthread_cond_broadcast> */
/* are called by another thread. */
res = SignalObjectAndWait(*mutex, p->sema, INFINITE, FALSE);
if (res == WAIT_FAILED) return set_win32_errno(GetLastError());
/* Re-acquire lock to avoid race conditions. */
EnterCriticalSection(&p->waiters_count_lock);
/* We're no longer waiting... */
p->waiters_count--;
/* Check to see if we're the last waiter after <pthread_cond_broadcast>. */
last_waiter = p->was_broadcast && p->waiters_count == 0;
LeaveCriticalSection(&p->waiters_count_lock);
/* If we're the last waiter thread during this particular broadcast */
/* then let all the other threads proceed. */
if (last_waiter) {
/* This call atomically signals the <waiters_done_> event and waits until */
/* it can acquire the <mutex>. This is required to ensure fairness. */
DWORD err = SignalObjectAndWait(p->waiters_done, *mutex, INFINITE, FALSE);
if (err == WAIT_FAILED) return set_win32_errno(GetLastError());
}
else {
/* Always regain the external mutex since that's the guarantee we */
/* give to our callers. */
DWORD err = WaitForSingleObject(*mutex, INFINITE);
if (err == WAIT_FAILED) return set_win32_errno(GetLastError());
}
assert(res == WAIT_OBJECT_0);
return 0;
}
void SerializeEnter()
{
if(SignalObjectAndWait(gWaitingSemaphore, gAvailableSemaphore, INFINITE, FALSE) == WAIT_OBJECT_0)
{
//We got hold of the "available" semaphore. Decrement the "waiting" semaphore
//to indicate that we are not waiting anymore
WaitForSingleObject(gWaitingSemaphore, INFINITE);
gInside = true;
}
}
bool Send(UOMessage msg, UINT arg1, UINT arg2, UINT arg3)
{
shared->msgOut[0] = msg;
shared->msgOut[1] = arg1;
shared->msgOut[2] = arg2;
shared->msgOut[3] = arg3;
if (SignalObjectAndWait(sentOut, handledOut, INFINITE, FALSE))
return false;
return shared->msgOut[0] == 1;
}
// sleep this thread, waiting for condition signal
void Wait( void )
{
#if defined( HAVE_POSIX_THREAD )
pthread_cond_wait( &mCondition, &mMutex );
#elif defined( HAVE_WIN32_THREAD )
// atomically release mutex and wait on condition,
// then re-acquire the mutex
SignalObjectAndWait( mMutex, mCondition, INFINITE, false );
WaitForSingleObject( mMutex, INFINITE );
#endif
}
bool SendData(UOMessage msg, LPVOID data, UINT len)
{
memcpy(shared->dataOut, data, len);
shared->msgOut[0] = msg;
shared->msgOut[1] = len;
if (SignalObjectAndWait(sentOut, handledOut, INFINITE, FALSE))
return false;
if (shared->msgOut[0] == 2)
memcpy(data, shared->dataOut, len);
return shared->msgOut[0] == 1;
}
void gcore::Condition::wait(gcore::Mutex &mtx) {
details::ConditionData *cond = (details::ConditionData*)&(mData[0]);
EnterCriticalSection(&cond->waiterCountLock);
cond->waiterCount++;
LeaveCriticalSection(&cond->waiterCountLock);
SignalObjectAndWait(*((HANDLE*)&(mtx.mData[0])), cond->sema, INFINITE, FALSE)
EnterCriticalSection(&cond->waiterCountLock);
cond->waiterCount--;
bool lastWaiter = (cond->wasBroadcast && cond->waiterCount==0);
LeaveCriticalSection(&cond->waiterCountLock);
if (lastWaiter) {
SignalObjectAndWait(cond->waiterDone, *((HANDLE*)&(mtx.mData[0])), INFINITE, FALSE);
} else {
WaitForSingleObject(*((HANDLE*)&(mtx.mData[0])), INFINITE);
}
}
int
pthread_cond_wait (pthread_cond_t *cv,
pthread_mutex_t *external_mutex)
{
int last_waiter;
// Avoid race conditions.
EnterCriticalSection (&cv->waiters_count_lock_);
cv->waiters_count_++;
LeaveCriticalSection (&cv->waiters_count_lock_);
// This call atomically releases the mutex and waits on the
// semaphore until <pthread_cond_signal> or <pthread_cond_broadcast>
// are called by another thread.
SignalObjectAndWait (*external_mutex, cv->sema_, INFINITE, FALSE);
// Reacquire lock to avoid race conditions.
EnterCriticalSection (&cv->waiters_count_lock_);
// We're no longer waiting...
cv->waiters_count_--;
// Check to see if we're the last waiter after <pthread_cond_broadcast>.
last_waiter = cv->was_broadcast_ && cv->waiters_count_ == 0;
LeaveCriticalSection (&cv->waiters_count_lock_);
// If we're the last waiter thread during this particular broadcast
// then let all the other threads proceed.
if (last_waiter)
// This call atomically signals the <waiters_done_> event and waits until
// it can acquire the <external_mutex>. This is required to ensure fairness.
SignalObjectAndWait (cv->waiters_done_, *external_mutex, INFINITE, FALSE);
else
// Always regain the external mutex since that's the guarantee we
// give to our callers.
WaitForSingleObject (*external_mutex, INFINITE);
// Temparary code in order not to notice warning...
return 0;
}
bool TimerManager::stop()
{
Locker lock(m_mutex);
if(m_isStop) {
return false;
}
m_isStop = true;
// スレッド停止待ち
ResetEvent(m_eventStop);
SignalObjectAndWait(m_mutex, m_eventStop, INFINITE, FALSE);
return true;
}
static int
profile_off (struct profinfo *p)
{
if (p->profthr)
{
SignalObjectAndWait (p->quitevt, p->profthr, INFINITE, FALSE);
CloseHandle (p->quitevt);
CloseHandle (p->profthr);
}
if (p->targthr)
CloseHandle (p->targthr);
return 0;
}
int
airThreadCondWait(airThreadCond *cond, airThreadMutex *mutex) {
int last;
/* increment count */
EnterCriticalSection(&(cond->lock)); /* avoid race conditions */
cond->count++;
LeaveCriticalSection(&(cond->lock));
/* atomically release the mutex and wait on the
semaphore until airThreadCondSignal or airThreadCondBroadcast
are called by another thread */
if (WAIT_FAILED == SignalObjectAndWait(mutex->handle, cond->sema,
INFINITE, FALSE)) {
return 1;
}
/* reacquire lock to avoid race conditions */
EnterCriticalSection(&(cond->lock));
/* we're no longer waiting... */
cond->count--;
/* check to see if we're the last waiter after airThreadCondBroadcast */
last = (cond->broadcast && 0 == cond->count);
LeaveCriticalSection(&(cond->lock));
/* if we're the last waiter thread during this particular broadcast
then let all the other threads proceed */
if (last) {
/* atomically signal the done event and waits until
we can acquire the mutex (this is required to ensure fairness) */
if (WAIT_FAILED == SignalObjectAndWait(cond->done, mutex->handle,
INFINITE, FALSE)) {
return 1;
}
} else {
/* regain the external mutex since that's the guarantee to our callers */
if (WAIT_FAILED == WaitForSingleObject(mutex->handle, INFINITE)) {
return 1;
}
}
return 0;
}
void wait(cybozu::Mutex& mutex)
{
#ifdef _WIN32
EnterCriticalSection(&waiterNumLock_);
waiterNum_++;
LeaveCriticalSection(&waiterNumLock_);
SignalObjectAndWait(mutex.hdl_, sema_, INFINITE, FALSE);
EnterCriticalSection(&waiterNumLock_);
waiterNum_--;
int last_waiter = wasBroadcast_ && waiterNum_ == 0;
LeaveCriticalSection (&waiterNumLock_);
if (last_waiter) {
SignalObjectAndWait(waiterDone_, mutex.hdl_, INFINITE, FALSE);
} else {
WaitForSingleObject(mutex.hdl_, INFINITE);
}
#else
pthread_cond_wait(&cv_, &mutex.hdl_);
#endif
}
bool gcore::Condition::timedWait(gcore::Mutex &mtx, unsigned long ms) {
details::ConditionData *cond = (details::ConditionData*)&(mData[0]);
EnterCriticalSection(&cond->waiterCountLock);
cond->waiterCount++;
LeaveCriticalSection(&cond->waiterCountLock);
bool timedout =
SignalObjectAndWait(*((HANDLE*)&(mtx.mData[0])), cond->sema, ms, FALSE) == WAIT_OBJET_0;
EnterCriticalSection(&cond->waiterCountLock);
cond->waiterCount--;
bool lastWaiter = (!timedout && cond->wasBroadcast && cond->waiterCount==0);
LeaveCriticalSection(&cond->waiterCountLock);
if (lastWaiter) {
SignalObjectAndWait(cond->waiterDone, *((HANDLE*)&(mtx.mData[0])), INFINITE, FALSE);
} else {
WaitForSingleObject(*((HANDLE*)&(mtx.mData[0])), INFINITE);
}
return !timedout;
}
int
pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mux)
{
int x, last;
pthread_mutex_lock(&cond->lock);
cond->waiters++;
pthread_mutex_unlock(&cond->lock);
// this does a pthread_mutex_unlock on mux
x = SignalObjectAndWait(mux->handle, cond->queue, INFINITE, FALSE);
assert(x == 0);
pthread_mutex_lock(&cond->lock);
cond->waiters--;
last = cond->broadcast && cond->waiters == 0;
pthread_mutex_unlock(&cond->lock);
if(last)
SignalObjectAndWait(cond->done, mux->handle, INFINITE, FALSE);
else
pthread_mutex_lock(mux);
return 0;
}
DWORD WINAPI worker_wait (LPVOID _data)
{
BOOL bExit;
LPWORKER lpWorker;
lpWorker = (LPWORKER )_data;
bExit = FALSE;
#ifdef DBUG
dbug_print("Worker %x starting", lpWorker);
#endif
while (
!bExit
&& SignalObjectAndWait(
lpWorker->hWorkerReady,
lpWorker->hCommandReady,
INFINITE,
TRUE) == WAIT_OBJECT_0)
{
#ifdef DBUG
dbug_print("Worker %x running", lpWorker);
#endif
switch (lpWorker->ECommand)
{
case WORKER_CMD_NONE:
break;
case WORKER_CMD_EXEC:
if (lpWorker->hJobFunc != NULL)
{
SetEvent(lpWorker->hJobStarted);
lpWorker->hJobFunc(lpWorker->hJobStop, lpWorker->lpJobUserData);
SetEvent(lpWorker->hJobDone);
};
break;
case WORKER_CMD_STOP:
bExit = TRUE;
break;
}
};
#ifdef DBUG
dbug_print("Worker %x exiting", lpWorker);
#endif
return 0;
}
DWORD QueuePut (QUEUE_OBJECT *q, PVOID msg, DWORD mSize, DWORD maxWait)
{
WaitForSingleObject (q->qGuard, INFINITE);
if (q->msgArray == NULL) return 1; /* Queue has been destroyed */
while (QueueFull (q))
{
SignalObjectAndWait (q->qGuard, q->qNf, INFINITE, FALSE);
WaitForSingleObject (q->qGuard, INFINITE);
}
/* Put the message in the queue */
QueueInsert (q, msg, mSize);
/* Signal that the queue is not empty as we've inserted a message */
PulseEvent (q->qNe);
ReleaseMutex (q->qGuard);
return 0;
}
