H5FD_file_image_callbacks_t Struct Reference

#include <src/H5FDpublic.h>

Detailed Description

Define structure to hold file image callbacks

Data Fields
void *(*	image_malloc )(size_t size, H5FD_file_image_op_t file_image_op, void *udata)
void *(*	image_memcpy )(void *dest, const void *src, size_t size, H5FD_file_image_op_t file_image_op, void *udata)
void *(*	image_realloc )(void *ptr, size_t size, H5FD_file_image_op_t file_image_op, void *udata)
herr_t(*	image_free )(void *ptr, H5FD_file_image_op_t file_image_op, void *udata)
void *(*	udata_copy )(void *udata)
herr_t(*	udata_free )(void *udata)
void *	udata
	The final field in the H5FD_file_image_callbacks_t struct, provides a pointer to user-defined data. This pointer will be passed to the image_malloc, image_memcpy, image_realloc, and image_free callbacks. Define udata as NULL if no user-defined data is provided.

Field Documentation

image_free

herr_t(* image_free) (void *ptr, H5FD_file_image_op_t file_image_op, void *udata)

Parameters

[in]	ptr	Pointer to the buffer being reallocated
[in]	file_image_op	A value from H5FD_file_image_op_t indicating the operation being performed on the file image when this callback is invoked
[in]	udata	Value passed in in the H5Pset_file_image_callbacks parameter udata

image_malloc

void *(* image_malloc) (size_t size, H5FD_file_image_op_t file_image_op, void *udata)

Parameters

[in]	size	Size in bytes of the file image buffer to allocate
[in]	file_image_op	A value from H5FD_file_image_op_t indicating the operation being performed on the file image when this callback is invoked
[in]	udata	Value passed in in the H5Pset_file_image_callbacks parameter udata

image_memcpy

void *(* image_memcpy) (void *dest, const void *src, size_t size, H5FD_file_image_op_t file_image_op, void *udata)

Parameters

[in]	dest	Address of the destination buffer
[in]	src	Address of the source buffer
[in]	size	Size in bytes of the file image buffer to allocate
[in]	file_image_op	A value from H5FD_file_image_op_t indicating the operation being performed on the file image when this callback is invoked
[in]	udata	Value passed in in the H5Pset_file_image_callbacks parameter udata

image_realloc

void *(* image_realloc) (void *ptr, size_t size, H5FD_file_image_op_t file_image_op, void *udata)

Parameters

[in]	ptr	Pointer to the buffer being reallocated
[in]	size	Size in bytes of the file image buffer to allocate
[in]	file_image_op	A value from H5FD_file_image_op_t indicating the operation being performed on the file image when this callback is invoked
[in]	udata	Value passed in in the H5Pset_file_image_callbacks parameter udata

udata

void* udata

The final field in the H5FD_file_image_callbacks_t struct, provides a pointer to user-defined data. This pointer will be passed to the image_malloc, image_memcpy, image_realloc, and image_free callbacks. Define udata as NULL if no user-defined data is provided.

udata_copy

void *(* udata_copy) (void *udata)

Parameters

[in]

udata

Value passed in in the H5Pset_file_image_callbacks parameter udata

udata_free

herr_t(* udata_free) (void *udata)

Parameters

[in]

udata

Value passed in in the H5Pset_file_image_callbacks parameter udata

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The documentation for this struct was generated from the following file:

• src/H5FDpublic.h