exif-mem.h File Reference

Define the ExifMem data type and the associated functions. ExifMem defines the memory management functions used by the ExifLoader. More...

#include <libexif/exif-utils.h>

Go to the source code of this file.

Typedefs
typedef void *(*	ExifMemAllocFunc )(ExifLong s)
typedef void *(*	ExifMemReallocFunc )(void *p, ExifLong s)
typedef void(*	ExifMemFreeFunc )(void *p)
typedef struct _ExifMem	ExifMem
Functions
ExifMem *	exif_mem_new (ExifMemAllocFunc a, ExifMemReallocFunc r, ExifMemFreeFunc f)
void	exif_mem_ref (ExifMem *)
void	exif_mem_unref (ExifMem *)
void *	exif_mem_alloc (ExifMem *m, ExifLong s)
void *	exif_mem_realloc (ExifMem *m, void *p, ExifLong s)
void	exif_mem_free (ExifMem *m, void *p)
ExifMem *	exif_mem_new_default (void)

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Detailed Description

Define the ExifMem data type and the associated functions. ExifMem defines the memory management functions used by the ExifLoader.

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Typedef Documentation

typedef struct _ExifMem ExifMem

ExifMem define a memory allocator

typedef void*(* ExifMemAllocFunc)(ExifLong s)

Should work like calloc()

Parameters:

[in]

s

the size of the block to allocate.

Returns:

the allocated memory and initialized.

typedef void(* ExifMemFreeFunc)(void *p)

Free method for ExifMem

Parameters:

[in]

p

the pointer to free

Returns:

the freed pointer

typedef void*(* ExifMemReallocFunc)(void *p, ExifLong s)

Should work like realloc()

Parameters:

[in]	p	the pointer to reallocate
[in]	s	the size of the reallocated block

Returns:

allocated memory

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Function Documentation

ExifMem* exif_mem_new	(	ExifMemAllocFunc	a,
		ExifMemReallocFunc	r,
		ExifMemFreeFunc	f
	)

Create a new ExifMem

Parameters:

[in]	a	the allocator function
[in]	r	the reallocator function
[in]	f	the free function

ExifMem* exif_mem_new_default

(

void

)

The default ExifMem for your convenience

Returns:

return the default ExifMem

void exif_mem_ref

(

ExifMem *

)

Refcount an ExifMem

void exif_mem_unref

(

ExifMem *

)

Unrefcount an ExifMem If the refcount reaches 0, the ExifMem is freed

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