MagickCore  7.0.6
Data Structures | Macros | Typedefs | Enumerations | Functions | Variables
memory.c File Reference
#include "MagickCore/studio.h"
#include "MagickCore/blob.h"
#include "MagickCore/blob-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/memory_.h"
#include "MagickCore/memory-private.h"
#include "MagickCore/policy.h"
#include "MagickCore/resource_.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/string_.h"
#include "MagickCore/utility-private.h"
Include dependency graph for memory.c:

Go to the source code of this file.

Data Structures

struct  _DataSegmentInfo
 
struct  _MagickMemoryMethods
 
struct  _MemoryInfo
 
struct  _MemoryPool
 

Macros

#define BlockFooter(block, size)   ((size_t *) ((char *) (block)+(size)-2*sizeof(size_t)))
 
#define BlockHeader(block)   ((size_t *) (block)-1)
 
#define BlockSize   4096
 
#define BlockThreshold   1024
 
#define MaxBlockExponent   16
 
#define MaxBlocks   ((BlockThreshold/(4*sizeof(size_t)))+MaxBlockExponent+1)
 
#define MaxSegments   1024
 
#define MemoryGuard   ((0xdeadbeef << 31)+0xdeafdeed)
 
#define NextBlock(block)   ((char *) (block)+SizeOfBlock(block))
 
#define NextBlockInList(block)   (*(void **) (block))
 
#define PreviousBlock(block)   ((char *) (block)-(*((size_t *) (block)-2)))
 
#define PreviousBlockBit   0x01
 
#define PreviousBlockInList(block)   (*((void **) (block)+1))
 
#define SegmentSize   (2*1024*1024)
 
#define SizeMask   (~0x01)
 
#define SizeOfBlock(block)   (*BlockHeader(block) & SizeMask)
 
#define AlignedExtent(size, alignment)   (((size)+((alignment)-1)) & ~((alignment)-1))
 

Typedefs

typedef struct _DataSegmentInfo DataSegmentInfo
 
typedef struct _MagickMemoryMethods MagickMemoryMethods
 
typedef struct _MemoryPool MemoryPool
 

Enumerations

enum  VirtualMemoryType { UndefinedVirtualMemory, AlignedVirtualMemory, MapVirtualMemory, UnalignedVirtualMemory }
 

Functions

MagickExport void * AcquireAlignedMemory (const size_t count, const size_t quantum)
 
MagickExport void * AcquireMagickMemory (const size_t size)
 
MagickExport void * AcquireQuantumMemory (const size_t count, const size_t quantum)
 
MagickExport MemoryInfo * AcquireVirtualMemory (const size_t count, const size_t quantum)
 
MagickExport void * CopyMagickMemory (void *destination, const void *source, const size_t size)
 
MagickExport void DestroyMagickMemory (void)
 
MagickExport void GetMagickMemoryMethods (AcquireMemoryHandler *acquire_memory_handler, ResizeMemoryHandler *resize_memory_handler, DestroyMemoryHandler *destroy_memory_handler)
 
MagickExport void * GetVirtualMemoryBlob (const MemoryInfo *memory_info)
 
MagickExport MagickBooleanType HeapOverflowSanityCheck (const size_t count, const size_t quantum)
 
MagickExport void * RelinquishAlignedMemory (void *memory)
 
MagickExport void * RelinquishMagickMemory (void *memory)
 
MagickExport MemoryInfo * RelinquishVirtualMemory (MemoryInfo *memory_info)
 
MagickExport void * ResetMagickMemory (void *memory, int byte, const size_t size)
 
MagickExport void * ResizeMagickMemory (void *memory, const size_t size)
 
MagickExport void * ResizeQuantumMemory (void *memory, const size_t count, const size_t quantum)
 
MagickExport void SetMagickMemoryMethods (AcquireMemoryHandler acquire_memory_handler, ResizeMemoryHandler resize_memory_handler, DestroyMemoryHandler destroy_memory_handler)
 

Variables

static MagickMemoryMethods memory_methods
 

Macro Definition Documentation

◆ AlignedExtent

#define AlignedExtent (   size,
  alignment 
)    (((size)+((alignment)-1)) & ~((alignment)-1))

Referenced by AcquireAlignedMemory().

◆ BlockFooter

#define BlockFooter (   block,
  size 
)    ((size_t *) ((char *) (block)+(size)-2*sizeof(size_t)))

Definition at line 72 of file memory.c.

Referenced by AcquireAlignedMemory(), DestroyMagickMemory(), and RelinquishMagickMemory().

◆ BlockHeader

#define BlockHeader (   block)    ((size_t *) (block)-1)

Definition at line 74 of file memory.c.

Referenced by AcquireAlignedMemory(), DestroyMagickMemory(), and RelinquishMagickMemory().

◆ BlockSize

#define BlockSize   4096

Definition at line 75 of file memory.c.

◆ BlockThreshold

#define BlockThreshold   1024

Definition at line 76 of file memory.c.

Referenced by AcquireAlignedMemory().

◆ MaxBlockExponent

#define MaxBlockExponent   16

Definition at line 77 of file memory.c.

Referenced by AcquireAlignedMemory().

◆ MaxBlocks

#define MaxBlocks   ((BlockThreshold/(4*sizeof(size_t)))+MaxBlockExponent+1)

Definition at line 78 of file memory.c.

Referenced by AcquireAlignedMemory(), and AcquireMagickMemory().

◆ MaxSegments

#define MaxSegments   1024

Definition at line 79 of file memory.c.

Referenced by AcquireMagickMemory(), and DestroyMagickMemory().

◆ MemoryGuard

#define MemoryGuard   ((0xdeadbeef << 31)+0xdeafdeed)

Definition at line 80 of file memory.c.

◆ NextBlock

#define NextBlock (   block)    ((char *) (block)+SizeOfBlock(block))

Definition at line 81 of file memory.c.

Referenced by AcquireAlignedMemory(), DestroyMagickMemory(), and RelinquishMagickMemory().

◆ NextBlockInList

#define NextBlockInList (   block)    (*(void **) (block))

Definition at line 82 of file memory.c.

Referenced by AcquireAlignedMemory().

◆ PreviousBlock

#define PreviousBlock (   block)    ((char *) (block)-(*((size_t *) (block)-2)))

Definition at line 83 of file memory.c.

Referenced by RelinquishMagickMemory().

◆ PreviousBlockBit

#define PreviousBlockBit   0x01

Definition at line 84 of file memory.c.

Referenced by AcquireAlignedMemory(), DestroyMagickMemory(), and RelinquishMagickMemory().

◆ PreviousBlockInList

#define PreviousBlockInList (   block)    (*((void **) (block)+1))

Definition at line 85 of file memory.c.

Referenced by AcquireAlignedMemory().

◆ SegmentSize

#define SegmentSize   (2*1024*1024)

Definition at line 86 of file memory.c.

Referenced by AcquireMagickMemory(), and DestroyMagickMemory().

◆ SizeMask

#define SizeMask   (~0x01)

Definition at line 87 of file memory.c.

Referenced by AcquireAlignedMemory(), AcquireMagickMemory(), and RelinquishMagickMemory().

◆ SizeOfBlock

#define SizeOfBlock (   block)    (*BlockHeader(block) & SizeMask)

Definition at line 88 of file memory.c.

Referenced by AcquireAlignedMemory(), RelinquishMagickMemory(), and ResetMagickMemory().

Typedef Documentation

◆ DataSegmentInfo

typedef struct _DataSegmentInfo DataSegmentInfo

◆ MagickMemoryMethods

typedef struct _MagickMemoryMethods MagickMemoryMethods

◆ MemoryPool

typedef struct _MemoryPool MemoryPool

Enumeration Type Documentation

◆ VirtualMemoryType

enum VirtualMemoryType
Enumerator
UndefinedVirtualMemory 
AlignedVirtualMemory 
MapVirtualMemory 
UnalignedVirtualMemory 

Definition at line 93 of file memory.c.

Function Documentation

◆ AcquireAlignedMemory()

MagickExport void* AcquireAlignedMemory ( const size_t  count,
const size_t  quantum 
)

Definition at line 237 of file memory.c.

References AlignedExtent, _MemoryPool::allocation, BlockFooter, BlockHeader, _MemoryPool::blocks, BlockThreshold, CACHE_LINE_SIZE, GetMagickPageSize(), HeapOverflowSanityCheck(), MagickFalse, MaxBlockExponent, MaxBlocks, _DataSegmentInfo::next, NextBlock, NextBlockInList, _DataSegmentInfo::previous, PreviousBlockBit, PreviousBlockInList, SizeMask, and SizeOfBlock.

Referenced by AcquireCacheNexusPixels(), AcquireContributionThreadSet(), AcquireKernelBuiltIn(), AcquirePixelCacheNexus(), AcquirePixelList(), AcquireStreamInfo(), AcquireStreamPixels(), AcquireVirtualCacheView(), AcquireVirtualMemory(), AdaptiveBlurImage(), AdaptiveSharpenImage(), CloneCacheView(), CloneKernelInfo(), EdgeImage(), EmbossImage(), GetMotionBlurKernel(), OpenPixelCache(), ParseKernelArray(), SelectiveBlurImage(), SharpenImage(), and WriteStreamImage().

◆ AcquireMagickMemory()

MagickExport void* AcquireMagickMemory ( const size_t  size)

Definition at line 457 of file memory.c.

References _MagickMemoryMethods::acquire_memory_handler, ActivateSemaphoreInfo(), _MemoryPool::allocation, _MemoryPool::blocks, LockSemaphoreInfo(), MagickFalse, MaxBlocks, MaxSegments, memory_methods, _DataSegmentInfo::next, _DataSegmentInfo::previous, ResetMagickMemory(), _MemoryPool::segment_pool, SegmentSize, SizeMask, and UnlockSemaphoreInfo().

Referenced by AcquireCoderCache(), AcquireColorCache(), AcquireConfigureCache(), AcquireCustomStreamInfo(), AcquireDistributeCacheInfo(), AcquireDrawInfo(), AcquireExceptionInfo(), AcquireFxInfo(), AcquireImage(), AcquireImageInfo(), AcquireKernelBuiltIn(), AcquireLogCache(), AcquireMagicCache(), AcquireMagickInfo(), AcquireMatrixInfo(), AcquirePixelList(), AcquirePolicyCache(), AcquireQuantizeInfo(), AcquireQuantumInfo(), AcquireQuantumMemory(), AcquireRandomInfo(), AcquireResampleFilter(), AcquireResizeFilter(), AcquireSignatureInfo(), AcquireStreamInfo(), AcquireStringInfo(), AcquireTimerInfo(), AcquireTokenInfo(), AcquireVirtualMemory(), AddChildToXMLTree(), AddValueToSplayTree(), AppendValueToLinkedList(), Ascii85Initialize(), CheckImageColors(), Classify(), ClassifyImageColors(), CloneBlobInfo(), CloneDrawInfo(), CloneExceptionInfo(), CloneImage(), CloneImageView(), CloneKernelInfo(), CloneMontageInfo(), CloneQuantizeInfo(), ConvertPathToPolygon(), DrawImage(), GetCubeInfo(), GetImageDynamicThreshold(), GetNodeInfo(), GetThresholdMapFile(), GetTypeList(), InitializeIntervalTree(), InsertValueInLinkedList(), InsertValueInSortedLinkedList(), ListFiles(), LoadCoderCache(), LoadColorCache(), LoadConfigureCache(), LoadDelegateCache(), LoadLocaleCache(), LoadLogCache(), LoadMagicCache(), LoadMimeCache(), LoadPolicyCache(), LoadTypeCache(), NewImageView(), NewImageViewRegion(), NewLinkedList(), NewSplayTree(), NewXMLTreeTag(), ParseInternalDoctype(), ParseProcessingInstructions(), RenderHoughLines(), ResizeMagickMemory(), SetImageInfo(), SetImageRegistry(), and ThrowException().

◆ AcquireQuantumMemory()

MagickExport void* AcquireQuantumMemory ( const size_t  count,
const size_t  quantum 
)

Definition at line 528 of file memory.c.

References AcquireMagickMemory(), HeapOverflowSanityCheck(), and MagickFalse.

Referenced by AcquireContributionThreadSet(), AcquireFxInfo(), AcquireFxThreadSet(), AcquireHistogramThreadSet(), AcquireImageColormap(), AcquireMagickMatrix(), AcquirePixelCacheNexus(), AcquirePixelChannelMap(), AcquirePixelListThreadSet(), AcquirePixelThreadSet(), AcquirePolygonThreadSet(), AcquireQuantumPixels(), AcquireRandomInfoThreadSet(), AcquireResampleFilterThreadSet(), AcquireSignatureInfo(), AcquireString(), AcquireStringInfo(), AcquireUniqueSymbolicLink(), BalanceSplayTree(), Base64Decode(), Base64Encode(), BlobToStringInfo(), Classify(), CloneDrawInfo(), CloneImage(), ClonePixelCacheOnDisk(), ClonePixelInfo(), ClutImage(), ColorDecisionListImage(), CompareImagesLayers(), ConfigureFileToStringInfo(), ConnectedComponentsImage(), ConstantString(), ContrastStretchImage(), ConvertLatin1ToUTF8(), ConvertPathToPolygon(), ConvertPrimitiveToPath(), ConvertUTF16ToUTF8(), CopyDelegateFile(), CreateMagickThreadKey(), CustomStreamToImage(), DeleteImages(), DeskewImage(), DistortImage(), DrawDashPolygon(), DrawImage(), EqualizeImage(), EscapeParenthesis(), EscapeString(), ExpandFilenames(), ExportImagePixels(), FileToBlob(), FileToImage(), FileToXML(), GammaImage(), GaussJordanElimination(), GenerateCoefficients(), Get8BIMProperty(), GetCoderInfoList(), GetCoderList(), GetColorInfoList(), GetColorList(), GetCommandOptions(), GetConfigureInfoList(), GetConfigureList(), GetDelegateInfoList(), GetDelegateList(), GetExecutionPath(), GetEXIFProperty(), GetImageDepth(), GetImageDistortion(), GetImageDistortions(), GetImageDynamicThreshold(), GetImageFeatures(), GetImageHistogram(), GetImageMoments(), GetImagePerceptualHash(), GetImageStatistics(), GetImageViewException(), GetIPTCProperty(), GetLocaleInfoList(), GetLocaleList(), GetLocationStatistics(), GetLogInfoList(), GetLogList(), GetMagicInfoList(), GetMagickInfoList(), GetMagickList(), GetMagicList(), GetMimeInfoList(), GetMimeList(), GetNextImageProfile(), GetNodeInfo(), GetPathComponents(), GetPolicyInfoList(), GetPolicyList(), GetThresholdMapFile(), GetTypeInfoList(), GetTypeList(), GetVirtualPixelsFromNexus(), GradientImage(), HuffmanDecodeImage(), HuffmanEncodeImage(), IdentifyImage(), ImageListToArray(), ImagesToBlob(), ImagesToCustomStream(), ImageToBlob(), ImageToCustomStream(), ImageToFile(), ImportImagePixels(), InitializeIntervalTree(), InjectImageBlob(), IterateOverSplayTree(), LinearStretchImage(), ListFiles(), LZWEncodeImage(), MagickReadDirectory(), MontageImageList(), MorphologyPrimitive(), MotionBlurImage(), NewXMLTree(), OptimalTau(), OptimizeLayerFrames(), PackbitsEncodeImage(), ParseEntities(), ParseInternalDoctype(), ParseKernelArray(), ParseProcessingInstructions(), PingBlob(), ReduceImageColors(), RenderType(), RotationalBlurImage(), SampleImage(), ScaleImage(), ScaleSpace(), SegmentImage(), SetGrayscaleImage(), SetImageDepth(), SetStringInfoLength(), SetXMLTreeAttribute(), SortColormapByIntensity(), sRGBTransformImage(), StreamImagePixels(), StringInfoToHexString(), StringInfoToString(), StringToArgv(), StringToArrayOfDoubles(), StringToList(), TraceBezier(), TraceStrokePolygon(), TransformsRGBImage(), WaveImage(), and WaveletDenoiseImage().

◆ AcquireVirtualMemory()

MagickExport MemoryInfo* AcquireVirtualMemory ( const size_t  count,
const size_t  quantum 
)

Definition at line 564 of file memory.c.

References AcquireAlignedMemory(), AcquireMagickMemory(), AcquireMagickResource(), AcquireUniqueFileResource(), AlignedVirtualMemory, _MemoryInfo::blob, DestroyString(), DiskResource, _MemoryInfo::filename, GetPolicyValue(), HeapOverflowSanityCheck(), IOMode, _MemoryInfo::length, LocaleCompare(), MagickAssumeAligned, MagickCoreSignature, MagickFalse, MapBlob(), MapResource, MapVirtualMemory, MemoryResource, RelinquishMagickResource(), RelinquishUniqueFileResource(), RelinquishVirtualMemory(), ResetMagickMemory(), ResourceLimitFatalError, _MemoryInfo::signature, ThrowFatalException, _MemoryInfo::type, and UnalignedVirtualMemory.

Referenced by ComplexImages(), DespeckleImage(), FloodfillPaintImage(), ForwardFourierTransformImage(), GetCubeInfo(), InterpolativeResizeImage(), LocalContrastImage(), and WaveletDenoiseImage().

◆ CopyMagickMemory()

MagickExport void* CopyMagickMemory ( void *  destination,
const void *  source,
const size_t  size 
)

Definition at line 710 of file memory.c.

Referenced by AcquireRandomInfo(), CloneDrawInfo(), CloneImage(), ClonePixelChannelMap(), ComplexImages(), ConvertUTF16ToUTF8(), DestroyEdge(), ForwardFourierTransformImage(), Get8BIMProperty(), GetPathComponent(), GradientImage(), NewXMLTreeTag(), ParseEntities(), ParseInternalDoctype(), RenderHoughLines(), RiemersmaDither(), SetRandomKey(), SetXMLTreeAttribute(), SubstituteString(), TraceStrokePolygon(), UpdateSignature(), WriteProfileLong(), WriteProfileShort(), WriteResourceLong(), and WriteTo8BimProfile().

◆ DestroyMagickMemory()

MagickExport void DestroyMagickMemory ( void  )

Definition at line 758 of file memory.c.

References _MagickMemoryMethods::acquire_memory_handler, ActivateSemaphoreInfo(), _DataSegmentInfo::allocation, BlockFooter, BlockHeader, _DataSegmentInfo::bound, _MagickMemoryMethods::destroy_memory_handler, IOMode, _DataSegmentInfo::length, LockSemaphoreInfo(), MagickFalse, MagickTrue, MapBlob(), _DataSegmentInfo::mapped, MaxSegments, memory_methods, _DataSegmentInfo::next, NextBlock, _MemoryPool::number_segments, PreviousBlockBit, RelinquishSemaphoreInfo(), ResetMagickMemory(), _MemoryPool::segments, SegmentSize, UnlockSemaphoreInfo(), and UnmapBlob().

◆ GetMagickMemoryMethods()

MagickExport void GetMagickMemoryMethods ( AcquireMemoryHandler *  acquire_memory_handler,
ResizeMemoryHandler *  resize_memory_handler,
DestroyMemoryHandler *  destroy_memory_handler 
)

Definition at line 886 of file memory.c.

References _MagickMemoryMethods::acquire_memory_handler, _MagickMemoryMethods::destroy_memory_handler, memory_methods, and _MagickMemoryMethods::resize_memory_handler.

◆ GetVirtualMemoryBlob()

MagickExport void* GetVirtualMemoryBlob ( const MemoryInfo *  memory_info)

Definition at line 921 of file memory.c.

References _MemoryInfo::blob, MagickCoreSignature, and _MemoryInfo::signature.

Referenced by ComplexImages(), DespeckleImage(), FloodfillPaintImage(), ForwardFourierTransformImage(), GetCubeInfo(), InterpolativeResizeImage(), LocalContrastImage(), and WaveletDenoiseImage().

◆ HeapOverflowSanityCheck()

MagickExport MagickBooleanType HeapOverflowSanityCheck ( const size_t  count,
const size_t  quantum 
)

Definition at line 952 of file memory.c.

References MagickFalse, and MagickTrue.

Referenced by AcquireAlignedMemory(), AcquireQuantumMemory(), AcquireVirtualMemory(), and ResizeQuantumMemory().

◆ RelinquishAlignedMemory()

MagickExport void* RelinquishAlignedMemory ( void *  memory)

Definition at line 990 of file memory.c.

Referenced by AdaptiveBlurImage(), AdaptiveSharpenImage(), DestroyCacheView(), DestroyContributionThreadSet(), DestroyKernelInfo(), DestroyPixelCacheNexus(), DestroyPixelList(), DestroyStreamInfo(), MotionBlurImage(), RelinquishCacheNexusPixels(), RelinquishPixelCachePixels(), RelinquishStreamPixels(), RelinquishVirtualMemory(), SelectiveBlurImage(), and WriteStreamImage().

◆ RelinquishMagickMemory()

MagickExport void* RelinquishMagickMemory ( void *  memory)

Definition at line 1027 of file memory.c.

References BlockFooter, BlockHeader, _MagickMemoryMethods::destroy_memory_handler, LockSemaphoreInfo(), memory_methods, _DataSegmentInfo::next, NextBlock, _DataSegmentInfo::previous, PreviousBlock, PreviousBlockBit, SizeMask, SizeOfBlock, and UnlockSemaphoreInfo().

Referenced by access_utf8(), AcquireCoderCache(), AcquireFxInfo(), AcquireMagickMatrix(), AcquirePolygonThreadSet(), AcquireQuantumPixels(), AcquireUniqueSymbolicLink(), AddPathToXMLTree(), AnnotateImage(), BalanceSplayTree(), Base64Decode(), CanonicalXMLContent(), Classify(), ClearLinkedList(), ClonePixelCacheOnDisk(), ClutImage(), ColorDecisionListImage(), CompareImagesLayers(), ConfigureFileToStringInfo(), ConnectedComponentsImage(), ContrastStretchImage(), ConvertPathToPolygon(), CopyDelegateFile(), CreateMagickThreadKey(), CustomStreamToImage(), DeleteImages(), DeleteMagickThreadKey(), DeleteNodeByValueFromSplayTree(), DeleteNodeFromSplayTree(), DeskewImage(), DestroyBlob(), DestroyCoderNode(), DestroyColorCube(), DestroyColorElement(), DestroyConfigureElement(), DestroyContributionThreadSet(), DestroyCubeInfo(), DestroyCustomStreamInfo(), DestroyDelegate(), DestroyDistributeCacheInfo(), DestroyDrawInfo(), DestroyEdge(), DestroyExceptionElement(), DestroyExceptionInfo(), DestroyFxInfo(), DestroyFxThreadSet(), DestroyHistogramThreadSet(), DestroyImage(), DestroyImageInfo(), DestroyImageView(), DestroyKernelInfo(), DestroyLinkedList(), DestroyLocaleNode(), DestroyLogElement(), DestroyMagicElement(), DestroyMagickNode(), DestroyMatrixInfo(), DestroyMimeElement(), DestroyMontageInfo(), DestroyPixelCache(), DestroyPixelCacheNexus(), DestroyPixelChannelMap(), DestroyPixelList(), DestroyPixelListThreadSet(), DestroyPixelStream(), DestroyPixelThreadSet(), DestroyPolicyElement(), DestroyPolygonInfo(), DestroyPolygonThreadSet(), DestroyQuantizeInfo(), DestroyQuantumInfo(), DestroyQuantumPixels(), DestroyRandomInfo(), DestroyRandomInfoThreadSet(), DestroyRegistryNode(), DestroyResampleFilter(), DestroyResampleFilterThreadSet(), DestroyResizeFilter(), DestroySignatureInfo(), DestroySplayTree(), DestroyStreamInfo(), DestroyString(), DestroyStringInfo(), DestroyStringList(), DestroyThresholdMap(), DestroyTimerInfo(), DestroyTokenInfo(), DestroyTypeNode(), DestroyXMLTree(), DestroyXMLTreeAttributes(), DestroyXMLTreeRoot(), DistortImage(), DrawDashPolygon(), DrawImage(), DrawStrokePolygon(), EqualizeImage(), ExpandFilenames(), ExportImagePixels(), ExternalDelegateCommand(), FileToBlob(), FileToImage(), FileToStringInfo(), FileToXML(), fopen_utf8(), FreeNodes(), GammaImage(), GaussJordanElimination(), GenerateCoefficients(), GetConfigureOptions(), GetConfigurePaths(), GetDelegateCommand(), GetExecutionPath(), GetHostname(), GetImageDepth(), GetImageDistortion(), GetImageDistortions(), GetImageDynamicThreshold(), GetImageEntropy(), GetImageFeatures(), GetImageKurtosis(), GetImageMean(), GetImageMoments(), GetImagePerceptualHash(), GetImageStatistics(), GetLocaleOptions(), GetMagickHomeURL(), GetMultilineTypeMetrics(), GetNextImageProfile(), GetNormalizedCrossCorrelationDistortion(), GetNumberColors(), GetPerceptualHashDistortion(), GetVirtualPixelsFromNexus(), GetXMLTreePath(), GetXMPProperty(), HuffmanDecodeImage(), HuffmanEncodeImage(), IdentifyImage(), ImagesToBlob(), ImagesToCustomStream(), ImageToBlob(), ImageToCustomStream(), ImageToFile(), ImportImagePixels(), InitializeIntervalTree(), InjectImageBlob(), InsertValueInSortedLinkedList(), InvokeDelegate(), IsOptionMember(), IterateOverSplayTree(), LinearStretchImage(), ListCoderInfo(), ListColorInfo(), ListConfigureInfo(), ListDelegateInfo(), ListFiles(), ListLocaleInfo(), ListLogInfo(), ListMagicInfo(), ListMagickInfo(), ListMimeInfo(), ListPolicyInfo(), ListTypeInfo(), LoadCoderCache(), LoadColorCache(), LoadConfigureCache(), LoadDelegateCache(), LoadLocaleCache(), LoadLogCache(), LoadMagicCache(), LoadPolicyCache(), LoadTypeCache(), LogMagickEventList(), LZWEncodeImage(), MagickReadDirectory(), MontageImageList(), MorphologyPrimitive(), MotionBlurImage(), open_utf8(), OptimalTau(), OptimizeLayerFrames(), PackbitsEncodeImage(), ParseInternalDoctype(), PingBlob(), popen_utf8(), PreviewImage(), ReadInlineImage(), ReduceImageColors(), RelinquishMagickMatrix(), RelinquishVirtualMemory(), remove_utf8(), RemoveElementByValueFromLinkedList(), RemoveElementFromLinkedList(), RemoveLastElementFromLinkedList(), RemoveNodeByValueFromSplayTree(), RemoveNodeFromSplayTree(), rename_utf8(), RenderType(), ResetSplayTree(), ResizeMagickMemory(), ResizeQuantumMemory(), RotationalBlurImage(), SampleImage(), ScaleImage(), ScaleSpace(), SegmentImage(), SetGrayscaleImage(), SetImageArtifact(), SetImageDepth(), SetImageInfo(), SetImageOption(), SetImageProfileInternal(), SetImageProperty(), SetImageRegistry(), SortColormapByIntensity(), SparseColorImage(), sRGBTransformImage(), stat_utf8(), StreamImagePixels(), StringToArgv(), TraceBezier(), TraceStrokePolygon(), TransformsRGBImage(), WaveImage(), and WaveletDenoiseImage().

◆ RelinquishVirtualMemory()

MagickExport MemoryInfo* RelinquishVirtualMemory ( MemoryInfo *  memory_info)

Definition at line 1094 of file memory.c.

References AlignedVirtualMemory, _MemoryInfo::blob, DiskResource, _MemoryInfo::filename, _MemoryInfo::length, MagickCoreSignature, MapResource, MapVirtualMemory, MemoryResource, RelinquishAlignedMemory(), RelinquishMagickMemory(), RelinquishMagickResource(), RelinquishUniqueFileResource(), _MemoryInfo::signature, _MemoryInfo::type, UnalignedVirtualMemory, and UnmapBlob().

Referenced by AcquireVirtualMemory(), ComplexImages(), DespeckleImage(), DestroyCubeInfo(), FloodfillPaintImage(), ForwardFourierTransformImage(), InterpolativeResizeImage(), LocalContrastImage(), and WaveletDenoiseImage().

◆ ResetMagickMemory()

MagickExport void* ResetMagickMemory ( void *  memory,
int  byte,
const size_t  size 
)

Definition at line 1158 of file memory.c.

References _MemoryPool::allocation, and SizeOfBlock.

Referenced by AcquireCacheNexusPixels(), AcquireCoderCache(), AcquireColorCache(), AcquireConfigureCache(), AcquireContributionThreadSet(), AcquireCustomStreamInfo(), AcquireDistributeCacheInfo(), AcquireFxInfo(), AcquireFxThreadSet(), AcquireHistogramThreadSet(), AcquireImage(), AcquireKernelBuiltIn(), AcquireLogCache(), AcquireMagicCache(), AcquireMagickInfo(), AcquireMagickMemory(), AcquireMatrixInfo(), AcquirePixelCacheNexus(), AcquirePixelChannelMap(), AcquirePixelList(), AcquirePixelListThreadSet(), AcquirePixelThreadSet(), AcquirePolicyCache(), AcquirePolygonThreadSet(), AcquireQuantumPixels(), AcquireRandomInfo(), AcquireRandomInfoThreadSet(), AcquireResampleFilter(), AcquireResampleFilterThreadSet(), AcquireResizeFilter(), AcquireSemaphoreInfo(), AcquireSignatureInfo(), AcquireStreamInfo(), AcquireStringInfo(), AcquireTimerInfo(), AcquireVirtualCacheView(), AcquireVirtualMemory(), AdaptiveBlurImage(), AdaptiveSharpenImage(), AddChildToXMLTree(), Ascii85Initialize(), CannyEdgeImage(), Classify(), CloneCacheView(), CloneImage(), CloneImageView(), ClonePixelCacheRepository(), ComplexImages(), ConnectedComponentsImage(), ConnectPixelCacheServer(), ContrastStretchImage(), ConvertPathToPolygon(), DespeckleImage(), DestroyMagickMemory(), DestroyRandomInfo(), DistortResizeImage(), DistributePixelCacheServer(), DitherImage(), EdgeImage(), EqualizeImage(), FinalizeSignature(), FormatMagickTime(), GammaImage(), GaussJordanElimination(), GetAbsoluteDistortion(), GetAffineMatrix(), GetBlobInfo(), GetCubeInfo(), GetDrawInfo(), GetFuzzDistortion(), GetImageDistortion(), GetImageDistortions(), GetImageDynamicThreshold(), GetImageFeatures(), GetImageInfo(), GetImageMoments(), GetImageQuantizeError(), GetImageStatistics(), GetLocationStatistics(), GetMeanAbsoluteDistortion(), GetMeanSquaredDistortion(), GetMontageInfo(), GetMultilineTypeMetrics(), GetNextImageProfile(), GetNodeInfo(), GetPathAttributes(), GetPeakAbsoluteDistortion(), GetPixelCacheMethods(), GetQuantizeInfo(), GetQuantumInfo(), GetTimerInfo(), GetTypeList(), GetTypeMetrics(), GetVirtualPixelsFromNexus(), HuffmanDecodeImage(), HuffmanEncodeImage(), InitializeExceptionInfo(), InitializePixelChannelMap(), InterpolatePixelInfo(), LinearStretchImage(), LoadCoderCache(), LoadColorCache(), LoadConfigureCache(), LoadDelegateCache(), LoadLocaleCache(), LoadLogCache(), LoadMagicCache(), LoadMimeCache(), LoadPolicyCache(), LoadTypeCache(), MontageImageList(), NewImageView(), NewImageViewRegion(), NewLinkedList(), NewSplayTree(), NewXMLTreeTag(), NullMatrix(), OilPaintImage(), OpenBlob(), ParseKernelArray(), PopDoublePixel(), PopFloatPixel(), QueryColorCompliance(), ResetStringInfo(), ScaleImage(), SetGeometry(), SetGeometryInfo(), SetGrayscaleImage(), SetImageColorspace(), SetImageInfo(), SetImageRegistry(), SetStringInfo(), SharpenImage(), sRGBTransformImage(), ThrowException(), TracePSClippath(), TraceSVGClippath(), TransformSignature(), and WriteStreamImage().

◆ ResizeMagickMemory()

MagickExport void* ResizeMagickMemory ( void *  memory,
const size_t  size 
)

Definition at line 1211 of file memory.c.

References AcquireMagickMemory(), LockSemaphoreInfo(), MagickFalse, memory_methods, RelinquishMagickMemory(), _MagickMemoryMethods::resize_memory_handler, ResourceLimitFatalError, ThrowFatalException, and UnlockSemaphoreInfo().

Referenced by ResizeQuantumMemory().

◆ ResizeQuantumMemory()

MagickExport void* ResizeQuantumMemory ( void *  memory,
const size_t  count,
const size_t  quantum 
)

Definition at line 1271 of file memory.c.

References HeapOverflowSanityCheck(), MagickFalse, RelinquishMagickMemory(), and ResizeMagickMemory().

Referenced by AcquireImageColormap(), BlobToStringInfo(), CanonicalXMLContent(), CheckImageColors(), ClassifyImageColors(), CloneString(), ConcatenateString(), ConvertPathToPolygon(), ConvertUTF16ToUTF8(), DrawImage(), EncodePredefinedEntities(), ExpandFilenames(), FileToBlob(), FileToXML(), ImagesToBlob(), ImageToBlob(), ListFiles(), NewXMLTree(), ParseEntities(), ParseInternalDoctype(), ParseProcessingInstructions(), SeekBlob(), SetBlobExtent(), SetStringInfoLength(), SetXMLTreeAttribute(), SubstituteString(), TraceStrokePolygon(), TranslateEvent(), TranslateFilename(), WriteBlob(), XMLTreeInfoToXML(), and XMLTreeTagToXML().

◆ SetMagickMemoryMethods()

MagickExport void SetMagickMemoryMethods ( AcquireMemoryHandler  acquire_memory_handler,
ResizeMemoryHandler  resize_memory_handler,
DestroyMemoryHandler  destroy_memory_handler 
)

Definition at line 1316 of file memory.c.

References _MagickMemoryMethods::acquire_memory_handler, _MagickMemoryMethods::destroy_memory_handler, memory_methods, and _MagickMemoryMethods::resize_memory_handler.

Variable Documentation

◆ memory_methods

MagickMemoryMethods memory_methods
static
Initial value:
=
{
(AcquireMemoryHandler) malloc,
(ResizeMemoryHandler) realloc,
(DestroyMemoryHandler) free
}
AcquireMemoryHandler
void *(* AcquireMemoryHandler)(size_t) magick_alloc_size(1)
Definition: memory_.h:29
DestroyMemoryHandler
void *(*)(* DestroyMemoryHandler)(void *)
Definition: memory_.h:30
ResizeMemoryHandler
void *(*)(*) *(* ResizeMemoryHandler)(void *, size_t) magick_alloc_size(2)
Definition: memory_.h:31

Definition at line 183 of file memory.c.

Referenced by AcquireMagickMemory(), DestroyMagickMemory(), GetMagickMemoryMethods(), RelinquishMagickMemory(), ResizeMagickMemory(), and SetMagickMemoryMethods().