memory.c File Reference

#include "magick/studio.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/memory_.h"
#include "magick/semaphore.h"
#include "magick/string_.h"

Data Structures
struct	_DataSegmentInfo
struct	_MemoryInfo
Defines
#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)
Typedefs
typedef struct _DataSegmentInfo	DataSegmentInfo
typedef struct _MemoryInfo	MemoryInfo
Functions
MagickExport void *	AcquireMagickMemory (const size_t size)
MagickExport void *	AcquireQuantumMemory (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 *	RelinquishMagickMemory (void *memory)
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)

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Define Documentation

#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)

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Typedef Documentation

typedef struct _DataSegmentInfo DataSegmentInfo

typedef struct _MemoryInfo MemoryInfo

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Function Documentation

MagickExport void* AcquireMagickMemory

(

const size_t

size

)

MagickExport void* AcquireQuantumMemory	(	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* RelinquishMagickMemory

(

void *

memory

)

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
	)

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