exif-mem.h File Reference

Define the ExifMem data type and the associated functions. More...

#include <libexif/exif-utils.h>

Go to the source code of this file.

Typedefs
typedef void *(*	ExifMemAllocFunc) (ExifLong s)
	Should work like calloc()
typedef void *(*	ExifMemReallocFunc) (void *p, ExifLong s)
	Should work like realloc()
typedef void(*	ExifMemFreeFunc) (void *p)
	Free method for ExifMem.
typedef struct _ExifMem	ExifMem
	ExifMem define a memory allocator.

Functions
ExifMem *	exif_mem_new (ExifMemAllocFunc a, ExifMemReallocFunc r, ExifMemFreeFunc f)
	Create a new ExifMem.
void	exif_mem_ref (ExifMem *)
	Refcount an ExifMem.
void	exif_mem_unref (ExifMem *)
	Unrefcount an 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)
	Create a new ExifMem with default values for your convenience.

Detailed Description

Define the ExifMem data type and the associated functions.

ExifMem defines the memory management functions used within libexif.

Typedef Documentation

ExifMemAllocFunc

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.

ExifMemFreeFunc

typedef void(* ExifMemFreeFunc) (void *p)

Free method for ExifMem.

Parameters

[in]

p

the pointer to free

Returns

the freed pointer

ExifMemReallocFunc

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

Function Documentation

exif_mem_new()

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

Returns

allocated ExifMem, or NULL on error

exif_mem_new_default()

ExifMem * exif_mem_new_default

(

void

)

Create a new ExifMem with default values for your convenience.

Returns

return a new default ExifMem

exif_mem_unref()

void exif_mem_unref

(

ExifMem *

mem

)

Unrefcount an ExifMem.

If the refcount reaches 0, the ExifMem is freed