distortos::anonymous_namespace{openFile.cpp} Namespace Reference

Functions
int	fileClose (void *const cookie)
	Wrapper for File::close() which can be used with fopencookie() More...
ssize_t	fileRead (void *const cookie, char *const buffer, const size_t size)
	Wrapper for File::read() which can be used with fopencookie() More...
int	fileSeek (void *const cookie, off_t *const offset, const int whence)
	Wrapper for File::seek() which can be used with fopencookie() More...
ssize_t	fileWrite (void *const cookie, const char *const buffer, const size_t size)
	Wrapper for File::write() which can be used with fopencookie() More...

Function Documentation

fileClose()

int distortos::anonymous_namespace{openFile.cpp}::fileClose

(

void *const

cookie

)

Wrapper for File::close() which can be used with fopencookie()

Parameters

[in]

cookie

is a cookie which was passed to fopencookie(), must be File!

Returns

0 on success, -1 otherwise; writes error code to errno:

• error codes returned by File::close();

fileRead()

ssize_t distortos::anonymous_namespace{openFile.cpp}::fileRead	(	void *const	cookie,
		char *const	buffer,
		const size_t	size
	)

Wrapper for File::read() which can be used with fopencookie()

Parameters

[in]	cookie	is a cookie which was passed to fopencookie(), must be File!
[out]	buffer	is the buffer into which the data will be read
[in]	size	is the size of buffer, bytes

Returns

0 on success, -1 otherwise; writes error code to errno:

• error codes returned by File::read();

fileSeek()

int distortos::anonymous_namespace{openFile.cpp}::fileSeek	(	void *const	cookie,
		off_t *const	offset,
		const int	whence
	)

Wrapper for File::seek() which can be used with fopencookie()

Parameters

[in]	cookie	is a cookie which was passed to fopencookie(), must be File!
[in,out]	offset	is a pointer the value of offset, bytes
[in]	whence	selects the mode of operation: SEEK_SET will set file offset to offset, SEEK_CUR will set file offset to its current value plus offset, SEEK_END will set file offset to the size of the file plus offset

Returns

0 on success, -1 otherwise; writes error code to errno:

• EINVAL - whence is not valid;
• error codes returned by File::seek();

fileWrite()

ssize_t distortos::anonymous_namespace{openFile.cpp}::fileWrite	(	void *const	cookie,
		const char *const	buffer,
		const size_t	size
	)

Wrapper for File::write() which can be used with fopencookie()

Parameters

[in]	cookie	is a cookie which was passed to fopencookie(), must be File!
[in]	buffer	is the buffer with data that will be written
[in]	size	is the size of buffer, bytes

Returns

0 on success, -1 otherwise; writes error code to errno:

• error codes returned by File::write();