MagickCore  7.0.10
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/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 BlockThreshold   1024
 
#define MaxBlockExponent   16
 
#define MaxBlocks   ((BlockThreshold/(4*sizeof(size_t)))+MaxBlockExponent+1)
 
#define MaxSegments   1024
 
#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 ALIGNMENT_OVERHEAD   (MAGICKCORE_MAX_ALIGNMENT_PADDING(CACHE_LINE_SIZE) + MAGICKCORE_SIZEOF_VOID_P)
 
#define AcquireAlignedMemory_Actual   AcquireAlignedMemory_Generic
 

Typedefs

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

Enumerations

enum  VirtualMemoryType { UndefinedVirtualMemory, AlignedVirtualMemory, MapVirtualMemory, UnalignedVirtualMemory }
 

Functions

static void * reserve_space_for_actual_base_address (void *const p)
 
static void ** pointer_to_space_for_actual_base_address (void *const p)
 
static void * actual_base_address (void *const p)
 
static void * align_to_cache (void *const p)
 
static void * adjust (void *const p)
 
static void * AcquireAlignedMemory_Generic (const size_t size)
 
MagickExport void * AcquireAlignedMemory (const size_t count, const size_t quantum)
 
MagickExport void * AcquireMagickMemory (const size_t size)
 
MagickExport void * AcquireCriticalMemory (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 *magick_restrict destination, const void *magick_restrict 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 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 SetMagickAlignedMemoryMethods (AcquireAlignedMemoryHandler acquire_aligned_memory_handler, RelinquishAlignedMemoryHandler relinquish_aligned_memory_handler)
 
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

◆ AcquireAlignedMemory_Actual

#define AcquireAlignedMemory_Actual   AcquireAlignedMemory_Generic

Definition at line 309 of file memory.c.

Referenced by AcquireAlignedMemory().

◆ ALIGNMENT_OVERHEAD

#define ALIGNMENT_OVERHEAD   (MAGICKCORE_MAX_ALIGNMENT_PADDING(CACHE_LINE_SIZE) + MAGICKCORE_SIZEOF_VOID_P)

Definition at line 282 of file memory.c.

Referenced by AcquireAlignedMemory_Generic().

◆ BlockFooter

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

Definition at line 73 of file memory.c.

Referenced by RelinquishMagickMemory().

◆ BlockHeader

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

Definition at line 75 of file memory.c.

Referenced by RelinquishMagickMemory().

◆ BlockThreshold

#define BlockThreshold   1024

Definition at line 76 of file memory.c.

◆ MaxBlockExponent

#define MaxBlockExponent   16

Definition at line 77 of file memory.c.

◆ MaxBlocks

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

Definition at line 78 of file memory.c.

Referenced by AcquireMagickMemory().

◆ MaxSegments

#define MaxSegments   1024

Definition at line 79 of file memory.c.

Referenced by AcquireMagickMemory().

◆ NextBlock

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

Definition at line 80 of file memory.c.

Referenced by RelinquishMagickMemory().

◆ NextBlockInList

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

Definition at line 81 of file memory.c.

◆ PreviousBlock

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

Definition at line 82 of file memory.c.

Referenced by RelinquishMagickMemory().

◆ PreviousBlockBit

#define PreviousBlockBit   0x01

Definition at line 83 of file memory.c.

Referenced by RelinquishMagickMemory().

◆ PreviousBlockInList

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

Definition at line 84 of file memory.c.

◆ SegmentSize

#define SegmentSize   (2*1024*1024)

Definition at line 85 of file memory.c.

Referenced by AcquireMagickMemory().

◆ SizeMask

#define SizeMask   (~0x01)

Definition at line 86 of file memory.c.

Referenced by AcquireMagickMemory(), and RelinquishMagickMemory().

◆ SizeOfBlock

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

Definition at line 87 of file memory.c.

Referenced by RelinquishMagickMemory().

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 92 of file memory.c.

Function Documentation

◆ AcquireAlignedMemory()

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

Definition at line 337 of file memory.c.

References _MagickMemoryMethods::acquire_aligned_memory_handler, AcquireAlignedMemory_Actual, CACHE_LINE_SIZE, HeapOverflowSanityCheckGetSize(), MagickFalse, and memory_methods.

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

◆ AcquireAlignedMemory_Generic()

static void* AcquireAlignedMemory_Generic ( const size_t  size)
inlinestatic

Definition at line 310 of file memory.c.

References AcquireMagickMemory(), adjust(), ALIGNMENT_OVERHEAD, and pointer_to_space_for_actual_base_address().

◆ AcquireCriticalMemory()

MagickExport void* AcquireCriticalMemory ( const size_t  size)

Definition at line 595 of file memory.c.

References AcquireMagickMemory(), ResourceLimitFatalError, and ThrowFatalException.

Referenced by AcquireCustomStreamInfo(), AcquireDistributeCacheInfo(), AcquireDrawInfo(), AcquireExceptionInfo(), AcquireFxInfo(), AcquireImage(), AcquireImageInfo(), AcquireMagickInfo(), AcquireQuantizeInfo(), AcquireQuantumInfo(), AcquireRandomInfo(), AcquireResampleFilter(), AcquireResizeFilter(), AcquireSignatureInfo(), AcquireStreamInfo(), AcquireStringInfoContainer(), AcquireTimerInfo(), AcquireTokenInfo(), CheckPrimitiveExtent(), CloneBlobInfo(), CloneDrawInfo(), CloneExceptionInfo(), CloneImage(), CloneImageView(), CloneMontageInfo(), CloneQuantizeInfo(), GetThresholdMapFile(), InitializeIntervalTree(), LoadColorCache(), LoadConfigureCache(), LoadDelegateCache(), LoadLocaleCache(), LoadLogCache(), LoadMimeCache(), LoadPolicyCache(), LoadTypeCache(), NewImageView(), NewImageViewRegion(), NewLinkedList(), NewSplayTree(), OptimalTau(), ParseProcessingInstructions(), SetImageRegistry(), SetPolicyValue(), and TraceStrokePolygon().

◆ AcquireMagickMemory()

MagickExport void* AcquireMagickMemory ( const size_t  size)

Definition at line 521 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 AcquireAlignedMemory_Generic(), 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(), RenderHoughLines(), RenderMVGContent(), ResizeMagickMemory(), SetImageInfo(), and ThrowException().

◆ AcquireQuantumMemory()

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

Definition at line 634 of file memory.c.

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

Referenced by AcquireContributionThreadSet(), AcquireFxInfo(), AcquireFxThreadSet(), AcquireHistogramThreadSet(), AcquireImageColormap(), AcquireKmeansThreadSet(), AcquireMagickMatrix(), AcquirePixelCacheNexus(), AcquirePixelChannelMap(), AcquirePixelListThreadSet(), AcquirePixelThreadSet(), AcquirePolygonThreadSet(), AcquireQuantumPixels(), AcquireRandomInfoThreadSet(), AcquireResampleFilterThreadSet(), AcquireSignatureInfo(), AcquireString(), AcquireStringInfo(), AcquireUniqueSymbolicLink(), AcquireVirtualMemory(), AnnotateImage(), AutoThresholdImage(), BalanceSplayTree(), Base64Decode(), Base64Encode(), BlobToStringInfo(), CLAHE(), 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(), EvaluateImages(), ExpandFilenames(), ExportImagePixels(), FileToBlob(), FileToImage(), FileToXML(), GammaImage(), GaussJordanElimination(), GenerateCoefficients(), Get8BIMProperty(), GetCoderInfoList(), GetCoderList(), GetColorInfoList(), GetColorList(), GetCommandOptions(), GetConfigureInfoList(), GetConfigureList(), GetDelegateInfoList(), GetDelegateList(), GetExecutionPath(), GetEXIFProperty(), GetImageConvexHull(), GetImageDepth(), GetImageDistortion(), GetImageDistortions(), GetImageDynamicThreshold(), GetImageFeatures(), GetImageHistogram(), GetImageMinimumBoundingBox(), 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(), SetFxSymbolValue(), SetGrayscaleImage(), SetImageDepth(), SetStringInfoLength(), SetXMLTreeAttribute(), SortColormapByIntensity(), sRGBTransformImage(), StreamImagePixels(), StringInfoToHexString(), StringInfoToString(), StringToArgv(), StringToArrayOfDoubles(), StringToStrings(), TraceBezier(), TraceStrokePolygon(), TransformsRGBImage(), WaveImage(), and WaveletDenoiseImage().

◆ AcquireVirtualMemory()

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

Definition at line 670 of file memory.c.

References AcquireAlignedMemory(), AcquireQuantumMemory(), AcquireUniqueFileResource(), AlignedVirtualMemory, _MemoryInfo::blob, DestroyString(), _MemoryInfo::filename, GetMaxMemoryRequest(), GetPolicyValue(), HeapOverflowSanityCheckGetSize(), 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(), GetImageConvexHull(), LocalContrastImage(), and WaveletDenoiseImage().

◆ actual_base_address()

static void* actual_base_address ( void *const  p)
inlinestatic

Definition at line 294 of file memory.c.

References pointer_to_space_for_actual_base_address().

Referenced by RelinquishAlignedMemory().

◆ adjust()

static void* adjust ( void *const  p)
inlinestatic

Definition at line 304 of file memory.c.

References align_to_cache(), and reserve_space_for_actual_base_address().

Referenced by AcquireAlignedMemory_Generic(), and ClutImage().

◆ align_to_cache()

static void* align_to_cache ( void *const  p)
inlinestatic

Definition at line 299 of file memory.c.

References CACHE_ALIGNED.

Referenced by adjust().

◆ CopyMagickMemory()

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

Definition at line 799 of file memory.c.

◆ DestroyMagickMemory()

MagickExport void DestroyMagickMemory ( void  )

Definition at line 847 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().

◆ GetMagickMemoryMethods()

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

Definition at line 975 of file memory.c.

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

◆ GetMaxMemoryRequest()

MagickExport size_t GetMaxMemoryRequest ( void  )

Definition at line 1006 of file memory.c.

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

Referenced by AcquireVirtualMemory(), and CheckPrimitiveExtent().

◆ GetVirtualMemoryBlob()

MagickExport void* GetVirtualMemoryBlob ( const MemoryInfo *  memory_info)

Definition at line 1050 of file memory.c.

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

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

◆ pointer_to_space_for_actual_base_address()

static void** pointer_to_space_for_actual_base_address ( void *const  p)
inlinestatic

Definition at line 289 of file memory.c.

Referenced by AcquireAlignedMemory_Generic(), and actual_base_address().

◆ RelinquishAlignedMemory()

MagickExport void* RelinquishAlignedMemory ( void *  memory)

Definition at line 1080 of file memory.c.

References actual_base_address(), memory_methods, _MagickMemoryMethods::relinquish_aligned_memory_handler, and RelinquishMagickMemory().

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

◆ RelinquishMagickMemory()

MagickExport void* RelinquishMagickMemory ( void *  memory)

Definition at line 1122 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(), CLAHE(), 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(), DestroyKmeansThreadSet(), 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(), EvaluateImages(), ExpandFilenames(), ExportImagePixels(), ExternalDelegateCommand(), FileToBlob(), FileToImage(), FileToXML(), fopen_utf8(), FreeNodes(), GammaImage(), GaussJordanElimination(), GenerateCoefficients(), GetConfigureOptions(), GetConfigurePaths(), GetDelegateCommand(), GetExecutionPath(), GetHostname(), GetImageConvexHull(), GetImageDepth(), GetImageDistortion(), GetImageDistortions(), GetImageDynamicThreshold(), GetImageEntropy(), GetImageFeatures(), GetImageKurtosis(), GetImageMean(), GetImageMinimumBoundingBox(), GetImageMoments(), GetImagePerceptualHash(), GetImageStatistics(), GetLocaleOptions(), GetMagickHomeURL(), GetMagickProperty(), 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(), RelinquishAlignedMemory(), 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().

◆ RelinquishVirtualMemory()

MagickExport MemoryInfo* RelinquishVirtualMemory ( MemoryInfo *  memory_info)

Definition at line 1189 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(), GetImageConvexHull(), LocalContrastImage(), and WaveletDenoiseImage().

◆ reserve_space_for_actual_base_address()

static void* reserve_space_for_actual_base_address ( void *const  p)
inlinestatic

Definition at line 284 of file memory.c.

Referenced by adjust().

◆ ResetMagickMemory()

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

Definition at line 1248 of file memory.c.

Referenced by GetPixelInfoPixel().

◆ ResetMaxMemoryRequest()

MagickPrivate void ResetMaxMemoryRequest ( void  )

Definition at line 1272 of file memory.c.

References max_memory_request.

◆ ResetVirtualAnonymousMemory()

MagickPrivate void ResetVirtualAnonymousMemory ( void  )

Definition at line 1295 of file memory.c.

References virtual_anonymous_memory.

Referenced by SetMagickSecurityPolicyValue().

◆ ResizeMagickMemory()

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

Definition at line 1347 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 1407 of file memory.c.

References HeapOverflowSanityCheckGetSize(), 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(), SetImageColormap(), SetStringInfoLength(), SetXMLTreeAttribute(), StringToStrings(), SubstituteString(), TranslateEvent(), TranslateFilename(), WriteBlob(), XMLTreeInfoToXML(), and XMLTreeTagToXML().

◆ SetMagickAlignedMemoryMethods()

MagickExport void SetMagickAlignedMemoryMethods ( AcquireAlignedMemoryHandler  acquire_aligned_memory_handler,
RelinquishAlignedMemoryHandler  relinquish_aligned_memory_handler 
)

Definition at line 1448 of file memory.c.

References _MagickMemoryMethods::acquire_aligned_memory_handler, memory_methods, and _MagickMemoryMethods::relinquish_aligned_memory_handler.

◆ SetMagickMemoryMethods()

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

Definition at line 1487 of file memory.c.

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

Variable Documentation

◆ max_memory_request

size_t max_memory_request = 0
static

Definition at line 173 of file memory.c.

Referenced by GetMaxMemoryRequest(), and ResetMaxMemoryRequest().

◆ memory_methods

MagickMemoryMethods memory_methods
static
Initial value:
=
{
(AcquireMemoryHandler) malloc,
(ResizeMemoryHandler) realloc,
(DestroyMemoryHandler) free,
(AcquireAlignedMemoryHandler) NULL,
(RelinquishAlignedMemoryHandler) NULL
}
AcquireMemoryHandler
void *(* AcquireMemoryHandler)(size_t) magick_alloc_size(1)
Definition: memory_.h:32
DestroyMemoryHandler
void *(*)(* DestroyMemoryHandler)(void *)
Definition: memory_.h:33
RelinquishAlignedMemoryHandler
void *(*)(*) *(*) *(*)(* RelinquishAlignedMemoryHandler)(void *)
Definition: memory_.h:36
AcquireAlignedMemoryHandler
void *(*)(*) *(*) *(* AcquireAlignedMemoryHandler)(const size_t, const size_t)
Definition: memory_.h:35
ResizeMemoryHandler
void *(*)(*) *(* ResizeMemoryHandler)(void *, size_t) magick_alloc_size(2)
Definition: memory_.h:34

Definition at line 194 of file memory.c.

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

◆ virtual_anonymous_memory

size_t virtual_anonymous_memory = 0
static

Definition at line 174 of file memory.c.

Referenced by AcquireVirtualMemory(), and ResetVirtualAnonymousMemory().