/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e l i n q u i s h V i r t u a l M e m o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RelinquishVirtualMemory() frees memory acquired with AcquireVirtualMemory().
%
% The format of the RelinquishVirtualMemory method is:
%
% MemoryInfo *RelinquishVirtualMemory(MemoryInfo *memory_info)
%
% A description of each parameter follows:
%
% o memory_info: A pointer to a block of memory to free for reuse.
%
*/
MagickExport MemoryInfo *RelinquishVirtualMemory(MemoryInfo *memory_info)
{
assert(memory_info != (MemoryInfo *) NULL);
assert(memory_info->signature == MagickSignature);
if (memory_info->blob != (void *) NULL)
switch (memory_info->type)
{
case AlignedVirtualMemory:
{
memory_info->blob=RelinquishAlignedMemory(memory_info->blob);
RelinquishMagickResource(MemoryResource,memory_info->length);
break;
}
case MapVirtualMemory:
{
(void) UnmapBlob(memory_info->blob,memory_info->length);
memory_info->blob=NULL;
RelinquishMagickResource(MapResource,memory_info->length);
if (*memory_info->filename != '\0')
(void) RelinquishUniqueFileResource(memory_info->filename);
break;
}
case UnalignedVirtualMemory:
default:
{
memory_info->blob=RelinquishMagickMemory(memory_info->blob);
break;
}
}
memory_info->signature=(~MagickSignature);
memory_info=(MemoryInfo *) RelinquishAlignedMemory(memory_info);
return(memory_info);
}
/*
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% %
% %
% %
+ D e s t r o y M a g i c k M e m o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DestroyMagickMemory() deallocates memory associated with the memory manager.
%
% The format of the DestroyMagickMemory method is:
%
% DestroyMagickMemory(void)
%
*/
MagickExport void DestroyMagickMemory(void)
{
#if defined(MAGICKCORE_EMBEDDABLE_SUPPORT)
register long
i;
AcquireSemaphoreInfo(&memory_semaphore);
RelinquishSemaphoreInfo(memory_semaphore);
for (i=0; i < (long) memory_info.number_segments; i++)
if (memory_info.segments[i]->mapped == MagickFalse)
free(memory_info.segments[i]->allocation);
else
(void) UnmapBlob(memory_info.segments[i]->allocation,
memory_info.segments[i]->length);
free_segments=(DataSegmentInfo *) NULL;
(void) ResetMagickMemory(&memory_info,0,sizeof(memory_info));
memory_semaphore=DestroySemaphoreInfo(memory_semaphore);
#endif
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e l i n q u i s h V i r t u a l M e m o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RelinquishVirtualMemory() frees memory acquired with AcquireVirtualMemory().
%
% The format of the RelinquishVirtualMemory method is:
%
% MemoryInfo *RelinquishVirtualMemory(MemoryInfo *memory_info)
%
% A description of each parameter follows:
%
% o memory_info: A pointer to a block of memory to free for reuse.
%
*/
MagickExport MemoryInfo *RelinquishVirtualMemory(MemoryInfo *memory_info)
{
assert(memory_info != (MemoryInfo *) NULL);
assert(memory_info->signature == MagickSignature);
if (memory_info->blob != (void *) NULL)
{
if (memory_info->mapped == MagickFalse)
memory_info->blob=RelinquishMagickMemory(memory_info->blob);
else
{
(void) UnmapBlob(memory_info->blob,memory_info->length);
memory_info->blob=NULL;
if (*memory_info->filename != '\0')
(void) RelinquishUniqueFileResource(memory_info->filename);
}
}
memory_info->signature=(~MagickSignature);
memory_info=(MemoryInfo *) RelinquishAlignedMemory(memory_info);
return(memory_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ D e s t r o y M a g i c k M e m o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DestroyMagickMemory() deallocates memory associated with the memory manager.
%
% The format of the DestroyMagickMemory method is:
%
% DestroyMagickMemory(void)
%
*/
MagickExport void DestroyMagickMemory(void)
{
#if defined(MAGICKCORE_ZERO_CONFIGURATION_SUPPORT)
register ssize_t
i;
if (memory_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&memory_semaphore);
LockSemaphoreInfo(memory_semaphore);
for (i=0; i < (ssize_t) memory_pool.number_segments; i++)
if (memory_pool.segments[i]->mapped == MagickFalse)
memory_methods.destroy_memory_handler(
memory_pool.segments[i]->allocation);
else
(void) UnmapBlob(memory_pool.segments[i]->allocation,
memory_pool.segments[i]->length);
free_segments=(DataSegmentInfo *) NULL;
(void) ResetMagickMemory(&memory_pool,0,sizeof(memory_pool));
UnlockSemaphoreInfo(memory_semaphore);
DestroySemaphoreInfo(&memory_semaphore);
#endif
}
