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/string-private.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))
#define	AlignedPowerOf2(x)   ((((x) - 1) & (x)) == 0)

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 size_t	GetMaxMemoryRequest (void)
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)
MagickPrivate void	ResetMaxMemoryRequest (void)
MagickPrivate void	ResetVirtualAnonymousMemory (void)
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 size_t	max_memory_request = 0
static size_t	virtual_anonymous_memory = 0
static MagickMemoryMethods	memory_methods

Macro Definition Documentation

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

Referenced by AcquireAlignedMemory().

#define AlignedPowerOf2

(

x

)

((((x) - 1) & (x)) == 0)

Referenced by AcquireAlignedMemory().

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

Definition at line 73 of file memory.c.

Referenced by RelinquishMagickMemory().

#define BlockHeader

(

block

)

((size_t *) (block)-1)

Definition at line 75 of file memory.c.

Referenced by RelinquishMagickMemory().

#define BlockSize   4096

Definition at line 76 of file memory.c.

#define BlockThreshold   1024

Definition at line 77 of file memory.c.

#define MaxBlockExponent   16

Definition at line 78 of file memory.c.

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

Definition at line 79 of file memory.c.

Referenced by AcquireMagickMemory().

#define MaxSegments   1024

Definition at line 80 of file memory.c.

Referenced by AcquireMagickMemory().

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

Definition at line 81 of file memory.c.

#define NextBlock

(

block

)

((char *) (block)+SizeOfBlock(block))

Definition at line 82 of file memory.c.

Referenced by RelinquishMagickMemory().

#define NextBlockInList

(

block

)

(*(void **) (block))

Definition at line 83 of file memory.c.

#define PreviousBlock

(

block

)

((char *) (block)-(*((size_t *) (block)-2)))

Definition at line 84 of file memory.c.

Referenced by RelinquishMagickMemory().

#define PreviousBlockBit   0x01

Definition at line 85 of file memory.c.

Referenced by RelinquishMagickMemory().

#define PreviousBlockInList

(

block

)

(*((void **) (block)+1))

Definition at line 86 of file memory.c.

#define SegmentSize   (2*1024*1024)

Definition at line 87 of file memory.c.

Referenced by AcquireMagickMemory().

#define SizeMask   (~0x01)

Definition at line 88 of file memory.c.

Referenced by AcquireMagickMemory(), and RelinquishMagickMemory().

#define SizeOfBlock

(

block

)

(*BlockHeader(block) & SizeMask)

Definition at line 89 of file memory.c.

Referenced by RelinquishMagickMemory().

Typedef Documentation

typedef struct _DataSegmentInfo DataSegmentInfo

typedef struct _MagickMemoryMethods MagickMemoryMethods

typedef struct _MemoryPool MemoryPool

Enumeration Type Documentation

enum VirtualMemoryType

Enumerator
UndefinedVirtualMemory
AlignedVirtualMemory
MapVirtualMemory
UnalignedVirtualMemory

Definition at line 94 of file memory.c.

Function Documentation

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

Definition at line 242 of file memory.c.

References AlignedExtent, AlignedPowerOf2, CACHE_LINE_SIZE, HeapOverflowSanityCheck(), and MagickFalse.

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

MagickExport void* AcquireMagickMemory

(

const size_t

size

)

Definition at line 472 of file memory.c.

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

Referenced by AcquireCoderCache(), AcquireColorCache(), AcquireCriticalMemory(), AcquireKernelBuiltIn(), AcquireMagicList(), AcquireMatrixInfo(), AcquirePixelList(), AcquirePolicyCache(), AcquireQuantumMemory(), AddChildToXMLTree(), AddConfigureKey(), AddValueToSplayTree(), AppendValueToLinkedList(), Ascii85Initialize(), CheckImageColors(), Classify(), CloneKernelInfo(), ConvertPathToPolygon(), GetCubeInfo(), GetImageDynamicThreshold(), GetNodeInfo(), InitializeIntervalTree(), InsertValueInLinkedList(), InsertValueInSortedLinkedList(), ListFiles(), NewXMLTreeTag(), ParseInternalDoctype(), ParseLogHandlers(), RenderHoughLines(), RenderMVGContent(), ResizeMagickMemory(), SetImageInfo(), and ThrowException().

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

Definition at line 543 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(), AcquireVirtualMemory(), AutoThresholdImage(), BalanceSplayTree(), Base64Decode(), Base64Encode(), BlobToStringInfo(), Classify(), ClassifyImageColors(), CloneDrawInfo(), CloneImage(), ClonePixelCacheOnDisk(), ClonePixelInfo(), ClutImage(), ColorDecisionListImage(), CompareImagesLayers(), ConfigureFileToStringInfo(), ConnectedComponentsImage(), ConstantString(), ContrastStretchImage(), ConvertLatin1ToUTF8(), ConvertPathToPolygon(), ConvertPrimitiveToPath(), ConvertUTF16ToUTF8(), CopyDelegateFile(), CreateMagickThreadKey(), CustomStreamToImage(), DeleteImages(), DeskewImage(), DistortImage(), DrawDashPolygon(), 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(), GetNodeInfo(), GetPathComponents(), GetPolicyInfoList(), GetPolicyList(), GetThresholdMapFile(), GetTypeInfoList(), GetTypeList(), GetVirtualPixelCacheNexus(), GradientImage(), HuffmanDecodeImage(), HuffmanEncodeImage(), IdentifyImage(), ImageListToArray(), ImagesToBlob(), ImagesToCustomStream(), ImageToBlob(), ImageToCustomStream(), ImageToFile(), ImportImagePixels(), InitializeIntervalTree(), InjectImageBlob(), IterateOverSplayTree(), KapurThreshold(), LinearStretchImage(), ListFiles(), LZWEncodeImage(), MontageImageList(), MorphologyPrimitive(), MotionBlurImage(), NewXMLTree(), OptimalTau(), OptimizeLayerFrames(), OTSUThreshold(), PackbitsEncodeImage(), ParseEntities(), ParseInternalDoctype(), ParseKernelArray(), ParseProcessingInstructions(), ReduceImageColors(), RenderMVGContent(), RotationalBlurImage(), SampleImage(), ScaleImage(), ScaleSpace(), SegmentImage(), SetGrayscaleImage(), SetImageDepth(), SetStringInfoLength(), SetXMLTreeAttribute(), SortColormapByIntensity(), sRGBTransformImage(), StreamImagePixels(), StringInfoToHexString(), StringInfoToString(), StringToArgv(), StringToArrayOfDoubles(), StringToStrings(), TraceBezier(), TraceStrokePolygon(), TransformsRGBImage(), WaveImage(), and WaveletDenoiseImage().

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

Definition at line 581 of file memory.c.

References AcquireAlignedMemory(), AcquireQuantumMemory(), AcquireUniqueFileResource(), AlignedVirtualMemory, _MemoryInfo::blob, DestroyString(), _MemoryInfo::filename, GetMaxMemoryRequest(), GetPolicyValue(), HeapOverflowSanityCheck(), IOMode, _MemoryInfo::length, LocaleCompare(), MagickAssumeAligned, MagickCoreSignature, MagickFalse, MapBlob(), MapVirtualMemory, RelinquishUniqueFileResource(), RelinquishVirtualMemory(), ResourceLimitFatalError, _MemoryInfo::signature, ThrowFatalException, _MemoryInfo::type, UnalignedVirtualMemory, and virtual_anonymous_memory.

Referenced by AcquireQuantumPixels(), CLAHE(), CLAHEImage(), DespeckleImage(), FloodfillPaintImage(), GetCubeInfo(), LocalContrastImage(), and WaveletDenoiseImage().

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

Definition at line 712 of file memory.c.

MagickExport void DestroyMagickMemory

(

void

)

Definition at line 760 of file memory.c.

References ActivateSemaphoreInfo(), _DataSegmentInfo::allocation, _MagickMemoryMethods::destroy_memory_handler, _DataSegmentInfo::length, LockSemaphoreInfo(), MagickFalse, _DataSegmentInfo::mapped, memory_methods, _MemoryPool::number_segments, RelinquishSemaphoreInfo(), _MemoryPool::segments, UnlockSemaphoreInfo(), and UnmapBlob().

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

Definition at line 888 of file memory.c.

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

MagickExport size_t GetMaxMemoryRequest

(

void

)

Definition at line 919 of file memory.c.

References DestroyString(), GetPolicyValue(), MagickULLConstant, max_memory_request, and StringToSizeType().

Referenced by AcquireVirtualMemory(), CheckPrimitiveExtent(), and TraceEllipse().

MagickExport void* GetVirtualMemoryBlob

(

const MemoryInfo *

memory_info

)

Definition at line 963 of file memory.c.

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

Referenced by AcquireQuantumPixels(), CLAHE(), CLAHEImage(), DespeckleImage(), DestroyQuantumPixels(), FloodfillPaintImage(), GetCubeInfo(), GetQuantumPixels(), LocalContrastImage(), and WaveletDenoiseImage().

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

Definition at line 994 of file memory.c.

References MagickFalse, and MagickTrue.

MagickExport void* RelinquishAlignedMemory

(

void *

memory

)

Definition at line 1032 of file memory.c.

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

MagickExport void* RelinquishMagickMemory

(

void *

memory

)

Definition at line 1069 of file memory.c.

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

Referenced by access_utf8(), AcquireCoderCache(), AcquireFxInfo(), AcquireMagickMatrix(), AcquirePolygonThreadSet(), AcquireUniqueSymbolicLink(), AddPathToXMLTree(), AnnotateImage(), AutoThresholdImage(), BalanceSplayTree(), Base64Decode(), CanonicalXMLContent(), CheckPrimitiveExtent(), Classify(), ClearLinkedList(), ClonePixelCacheOnDisk(), ClutImage(), ColorDecisionListImage(), CompareImagesLayers(), 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(), DestroyPixelCacheNexus(), DestroyPixelChannelMap(), DestroyPixelList(), DestroyPixelListThreadSet(), 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(), DrawStrokePolygon(), EqualizeImage(), ExpandFilenames(), ExportImagePixels(), ExternalDelegateCommand(), FileToBlob(), FileToImage(), 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(), GetMVGMacros(), GetNormalizedCrossCorrelationDistortion(), GetNumberColors(), GetPerceptualHashDistortion(), GetVirtualPixelCacheNexus(), GetXMLTreePath(), GetXMPProperty(), HuffmanDecodeImage(), HuffmanEncodeImage(), IdentifyImage(), ImagesToBlob(), ImagesToCustomStream(), ImageToBlob(), ImageToCustomStream(), ImageToFile(), ImportImagePixels(), InitializeIntervalTree(), InjectImageBlob(), InsertValueInSortedLinkedList(), InvokeDelegate(), IsOptionMember(), IterateOverSplayTree(), KapurThreshold(), LinearStretchImage(), ListCoderInfo(), ListColorInfo(), ListConfigureInfo(), ListDelegateInfo(), ListFiles(), ListLocaleInfo(), ListLogInfo(), ListMagicInfo(), ListMagickInfo(), ListMimeInfo(), ListPolicyInfo(), ListTypeInfo(), LoadColorCache(), LoadConfigureCache(), LoadDelegateCache(), LoadLocaleCache(), LoadLogCache(), LoadPolicyCache(), LoadTypeCache(), LogMagickEventList(), LZWEncodeImage(), MontageImageList(), MorphologyPrimitive(), MotionBlurImage(), open_utf8(), OptimalTau(), OptimizeLayerFrames(), OTSUThreshold(), PackbitsEncodeImage(), ParseInternalDoctype(), popen_utf8(), PreviewImage(), ReadInlineImage(), ReduceImageColors(), RelinquishMagickMatrix(), RelinquishVirtualMemory(), remove_utf8(), RemoveElementByValueFromLinkedList(), RemoveElementFromLinkedList(), RemoveLastElementFromLinkedList(), RemoveNodeByValueFromSplayTree(), RemoveNodeFromSplayTree(), rename_utf8(), RenderMVGContent(), RenderType(), ResetSplayTree(), ResizeMagickMemory(), ResizeQuantumMemory(), RotationalBlurImage(), SampleImage(), ScaleImage(), ScaleSpace(), SegmentImage(), SetGrayscaleImage(), SetImageArtifact(), SetImageDepth(), SetImageInfo(), SetImageOption(), SetImageProfileInternal(), SetImageProperty(), SetImageRegistry(), SetPolicyValue(), SortColormapByIntensity(), SparseColorImage(), sRGBTransformImage(), stat_utf8(), StreamImagePixels(), StringToArgv(), TraceBezier(), TraceStrokePolygon(), TransformsRGBImage(), WaveImage(), and WaveletDenoiseImage().

MagickExport MemoryInfo* RelinquishVirtualMemory

(

MemoryInfo *

memory_info

)

Definition at line 1136 of file memory.c.

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

Referenced by AcquireVirtualMemory(), CLAHE(), CLAHEImage(), DespeckleImage(), DestroyCubeInfo(), DestroyQuantumPixels(), FloodfillPaintImage(), LocalContrastImage(), and WaveletDenoiseImage().

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

Definition at line 1195 of file memory.c.

Referenced by GetPixelInfoPixel().

MagickPrivate void ResetMaxMemoryRequest

(

void

)

Definition at line 1219 of file memory.c.

References max_memory_request.

MagickPrivate void ResetVirtualAnonymousMemory

(

void

)

Definition at line 1242 of file memory.c.

References virtual_anonymous_memory.

Referenced by SetMagickSecurityPolicyValue().

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

Definition at line 1294 of file memory.c.

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

Referenced by ResizeQuantumMemory().

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

Definition at line 1354 of file memory.c.

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

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

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

Definition at line 1399 of file memory.c.

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

Variable Documentation

size_t max_memory_request = 0

static

Definition at line 169 of file memory.c.

Referenced by GetMaxMemoryRequest(), and ResetMaxMemoryRequest().

MagickMemoryMethods memory_methods

static

Initial value:

=
  {





    (AcquireMemoryHandler) malloc,
    (ResizeMemoryHandler) realloc,
    (DestroyMemoryHandler) free

  }

Definition at line 188 of file memory.c.

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

size_t virtual_anonymous_memory = 0

static

Definition at line 170 of file memory.c.

Referenced by AcquireVirtualMemory(), and ResetVirtualAnonymousMemory().