file.h File Reference

file operation functions More...

Functions
void *	spdk_posix_file_load (FILE *file, size_t *size)
	Load the input file content into a data buffer.
void *	spdk_posix_file_load_from_name (const char *file_name, size_t *size)
	Load content of a given file name into a data buffer.
int	spdk_read_sysfs_attribute (char **attribute, const char *path_format,...)
	Get the string value for a given sysfs attribute path.
int	spdk_read_sysfs_attribute_uint32 (uint32_t *attribute, const char *path_format,...)
	Get the uint32 value for a given sysfs attribute path.

Detailed Description

file operation functions

Function Documentation

spdk_posix_file_load()

void * spdk_posix_file_load	(	FILE *	file,
		size_t *	size
	)

Load the input file content into a data buffer.

Parameters

file	File handle.
size	Size of bytes read from the file.

Returns

data contains the content on success, NULL on failure.

spdk_posix_file_load_from_name()

void * spdk_posix_file_load_from_name	(	const char *	file_name,
		size_t *	size
	)

Load content of a given file name into a data buffer.

Parameters

file_name	File name.
size	Size of bytes read from the file.

Returns

data containing the content on success, NULL on failure.

spdk_read_sysfs_attribute()

int spdk_read_sysfs_attribute	(	char **	attribute,
		const char *	path_format,
			...
	)

Get the string value for a given sysfs attribute path.

When successful, the returned string will be null-terminated, without a trailing newline.

Parameters

attribute	output parameter for contents of the attribute; caller must free() the buffer pointed to by attribute at some point after a successful call
path_format	format string for constructing patch to sysfs file

Returns

0 on success negative errno if unable to read the attribute

spdk_read_sysfs_attribute_uint32()

int spdk_read_sysfs_attribute_uint32	(	uint32_t *	attribute,
		const char *	path_format,
			...
	)

Get the uint32 value for a given sysfs attribute path.

Parameters

attribute	output parameter for contents of the attribute
path_format	format string for constructing patch to sysfs file

Returns

0 on success negative errno if unable to read the attribute or it is not a uint32