FIFO/Pipe File System Support

Interface to the POSIX FIFO/Pipe File System. More...

Files
file	fifo.c
	FIFO/Pipe Support.
file	pipe.c
	Create an Anonymous Pipe.

Data Structures
struct	pipe_control

Typedefs
typedef struct pipe_control	pipe_control_t

Functions
void	pipe_release (pipe_control_t **pipep, rtems_libio_t *iop)
	Release a pipe.
int	fifo_open (pipe_control_t **pipep, rtems_libio_t *iop)
	File system open. Interface to file system open.
ssize_t	pipe_read (pipe_control_t *pipe, void *buffer, size_t count, rtems_libio_t *iop)
	File system read.
ssize_t	pipe_write (pipe_control_t *pipe, const void *buffer, size_t count, rtems_libio_t *iop)
	File system write.
int	pipe_ioctl (pipe_control_t *pipe, ioctl_command_t cmd, void *buffer, rtems_libio_t *iop)
	File system Input/Output control.

Detailed Description

Interface to the POSIX FIFO/Pipe File System.

Function Documentation

fifo_open()

int fifo_open	(	pipe_control_t **	pipep,
		rtems_libio_t *	iop
	)

File system open. Interface to file system open.

*pipep points to pipe control structure. If called with *pipep = NULL, fifo_open will try allocating and initializing a control structure. If the call succeeds, *pipep will be set to address of new control structure.

pipe_ioctl()

int pipe_ioctl	(	pipe_control_t *	pipe,
		ioctl_command_t	cmd,
		void *	buffer,
		rtems_libio_t *	iop
	)

File system Input/Output control.

Interface to file system ioctl.

pipe_read()

ssize_t pipe_read	(	pipe_control_t *	pipe,
		void *	buffer,
		size_t	count,
		rtems_libio_t *	iop
	)

File system read.

Interface to file system read.

pipe_release()

void pipe_release	(	pipe_control_t **	pipep,
		rtems_libio_t *	iop
	)

Release a pipe.

Interface to file system close.

*pipep points to pipe control structure. When the last user releases pipe, it will be set to NULL.

pipe_write()

ssize_t pipe_write	(	pipe_control_t *	pipe,
		const void *	buffer,
		size_t	count,
		rtems_libio_t *	iop
	)

File system write.

Interface to file system write.