/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n l o c k S e m a p h o r e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnlockSemaphoreInfo() unlocks a semaphore.
%
% The format of the UnlockSemaphoreInfo method is:
%
% void UnlockSemaphoreInfo(SemaphoreInfo *semaphore_info)
%
% A description of each parameter follows:
%
% o semaphore_info: Specifies a pointer to an SemaphoreInfo structure.
%
*/
MagickExport void UnlockSemaphoreInfo(SemaphoreInfo *semaphore_info)
{
assert(semaphore_info != (SemaphoreInfo *) NULL);
assert(semaphore_info->signature == MagickSignature);
#if defined(MAGICKCORE_DEBUG)
assert(IsMagickThreadEqual(semaphore_info->id) != MagickFalse);
if (semaphore_info->reference_count == 0)
{
(void) FormatLocaleFile(stderr,
"Warning: semaphore lock already unlocked!\n");
(void) fflush(stderr);
return;
}
semaphore_info->reference_count--;
#endif
#if defined(MAGICKCORE_THREAD_SUPPORT)
{
int
status;
status=pthread_mutex_unlock(&semaphore_info->mutex);
if (status != 0)
{
errno=status;
ThrowFatalException(ResourceLimitFatalError,"UnableToUnlockSemaphore");
}
}
#elif defined(MAGICKCORE_HAVE_WINTHREADS)
LeaveCriticalSection(&semaphore_info->mutex);
#endif
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% U n l o c k S e m a p h o r e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% UnlockSemaphoreInfo() unlocks a semaphore.
%
% The format of the UnlockSemaphoreInfo method is:
%
% MagickBooleanType UnlockSemaphoreInfo(SemaphoreInfo *semaphore_info)
%
% A description of each parameter follows:
%
% o semaphore_info: Specifies a pointer to an SemaphoreInfo structure.
%
*/
MagickExport MagickBooleanType UnlockSemaphoreInfo(
SemaphoreInfo *semaphore_info)
{
assert(semaphore_info != (SemaphoreInfo *) NULL);
assert(semaphore_info->signature == MagickSignature);
#if defined(MAGICKCORE_DEBUG)
assert(IsMagickThreadEqual(semaphore_info->id) != MagickFalse);
if (semaphore_info->reference_count == 0)
{
(void) fprintf(stderr,"Warning: semaphore lock already unlocked!\n");
(void) fflush(stderr);
return(MagickFalse);
}
semaphore_info->reference_count--;
#endif
#if defined(MAGICKCORE_HAVE_PTHREAD)
{
int
status;
status=pthread_mutex_unlock(&semaphore_info->mutex);
if (status != 0)
{
semaphore_info->reference_count++;
return(MagickFalse);
}
}
#elif defined(MAGICKORE_HAVE_WINTHREADS)
LeaveCriticalSection(&semaphore_info->mutex);
#endif
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L o c k S e m a p h o r e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LockSemaphoreInfo() locks a semaphore.
%
% The format of the LockSemaphoreInfo method is:
%
% void LockSemaphoreInfo(SemaphoreInfo *semaphore_info)
%
% A description of each parameter follows:
%
% o semaphore_info: Specifies a pointer to an SemaphoreInfo structure.
%
*/
MagickExport void LockSemaphoreInfo(SemaphoreInfo *semaphore_info)
{
assert(semaphore_info != (SemaphoreInfo *) NULL);
assert(semaphore_info->signature == MagickSignature);
#if defined(MAGICKCORE_THREAD_SUPPORT)
{
int
status;
status=pthread_mutex_lock(&semaphore_info->mutex);
if (status != 0)
{
errno=status;
ThrowFatalException(ResourceLimitFatalError,"UnableToLockSemaphore");
}
}
#elif defined(MAGICKCORE_HAVE_WINTHREADS)
EnterCriticalSection(&semaphore_info->mutex);
#endif
#if defined(MAGICKCORE_DEBUG)
if ((semaphore_info->reference_count > 0) &&
(IsMagickThreadEqual(semaphore_info->id) != MagickFalse))
{
(void) FormatLocaleFile(stderr,"Warning: unexpected recursive lock!\n");
(void) fflush(stderr);
}
#endif
semaphore_info->id=GetMagickThreadId();
semaphore_info->reference_count++;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L o c k S e m a p h o r e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LockSemaphoreInfo() locks a semaphore.
%
% The format of the LockSemaphoreInfo method is:
%
% MagickBooleanType LockSemaphoreInfo(SemaphoreInfo *semaphore_info)
%
% A description of each parameter follows:
%
% o semaphore_info: Specifies a pointer to an SemaphoreInfo structure.
%
*/
MagickExport MagickBooleanType LockSemaphoreInfo(SemaphoreInfo *semaphore_info)
{
assert(semaphore_info != (SemaphoreInfo *) NULL);
assert(semaphore_info->signature == MagickSignature);
#if defined(MAGICKCORE_HAVE_PTHREAD)
{
int
status;
status=pthread_mutex_lock(&semaphore_info->mutex);
if (status != 0)
return(MagickFalse);
#if defined(MAGICKCORE_DEBUG)
{
if ((semaphore_info->reference_count > 0) &&
(IsMagickThreadEqual(semaphore_info->id) != MagickFalse))
{
(void) fprintf(stderr,"Warning: unexpected recursive lock!\n");
(void) fflush(stderr);
}
}
#endif
}
#elif defined(MAGICKORE_HAVE_WINTHREADS)
{
EnterCriticalSection(&semaphore_info->mutex);
#if defined(MAGICKCORE_DEBUG)
{
if ((semaphore_info->reference_count > 0) &&
(IsMagickThreadEqual(semaphore_info->id) != MagickFalse))
{
(void) fprintf(stderr,"Warning: unexpected recursive lock!\n");
(void) fflush(stderr);
}
}
#endif
}
#endif
semaphore_info->id=GetMagickThreadId();
semaphore_info->reference_count++;
return(MagickTrue);
}