buffer.c File Reference

Buffering of output and input. More...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stddef.h>
#include <sys/uio.h>
#include <osmocom/core/talloc.h>
#include <osmocom/vty/buffer.h>
#include <osmocom/vty/vty.h>

Data Structures
struct	buffer
struct	buffer_data

Macros
#define	BUFFER_SIZE_DEFAULT   4096
#define	BUFFER_DATA_FREE(D)   talloc_free((D))
#define	MAX_CHUNKS   16
#define	MAX_FLUSH   131072

Functions
struct buffer *	buffer_new (void *ctx, size_t size)
void	buffer_free (struct buffer *b)
char *	buffer_getstr (struct buffer *b)
int	buffer_empty (struct buffer *b)
void	buffer_reset (struct buffer *b)
static struct buffer_data *	buffer_add (struct buffer *b)
void	buffer_put (struct buffer *b, const void *p, size_t size)
void	buffer_putc (struct buffer *b, unsigned char c)
void	buffer_putstr (struct buffer *b, const char *c)
buffer_status_t	buffer_flush_all (struct buffer *b, int fd)
buffer_status_t	buffer_flush_available (struct buffer *b, int fd)
buffer_status_t	buffer_write (struct buffer *b, int fd, const void *p, size_t size)

Detailed Description

Buffering of output and input.

Macro Definition Documentation

BUFFER_DATA_FREE

#define BUFFER_DATA_FREE

(

D

)

talloc_free((D))

BUFFER_SIZE_DEFAULT

#define BUFFER_SIZE_DEFAULT   4096

MAX_CHUNKS

#define MAX_CHUNKS   16

MAX_FLUSH

#define MAX_FLUSH   131072

Function Documentation

buffer_add()

static struct buffer_data * buffer_add ( struct buffer *  b )

static

References buffer_data::cp, data, buffer::head, buffer_data::next, buffer::size, buffer_data::sp, and buffer::tail.

Referenced by buffer_put().

buffer_empty()

int buffer_empty

(

struct buffer *

b

)

References buffer::head.

buffer_flush_all()

buffer_status_t buffer_flush_all	(	struct buffer *	b,
		int	fd
	)

References BUFFER_EMPTY, buffer_flush_available(), BUFFER_PENDING, fd, buffer::head, and buffer_data::sp.

Referenced by client_data(), vty_close(), and vty_flush().

buffer_flush_available()

buffer_status_t buffer_flush_available	(	struct buffer *	b,
		int	fd
	)

References BUFFER_DATA_FREE, BUFFER_EMPTY, BUFFER_ERROR, BUFFER_PENDING, buffer_data::cp, buffer_data::data, ERRNO_IO_RETRY, fd, buffer::head, MAX_CHUNKS, MAX_FLUSH, buffer_data::next, buffer_data::sp, and buffer::tail.

Referenced by buffer_flush_all(), and buffer_write().

buffer_free()

void buffer_free

(

struct buffer *

b

)

References buffer_reset().

Referenced by vty_close(), and vty_new().

buffer_getstr()

char * buffer_getstr

(

struct buffer *

b

)

References data, buffer::head, and tall_vty_ctx.

buffer_new()

struct buffer * buffer_new	(	void *	ctx,
		size_t	size
	)

References BUFFER_SIZE_DEFAULT, and buffer::size.

Referenced by vty_new().

buffer_put()

void buffer_put	(	struct buffer *	b,
		const void *	p,
		size_t	size
	)

References buffer_add(), data, buffer::size, and buffer::tail.

Referenced by buffer_putc(), buffer_putstr(), buffer_write(), vty_out_newline(), vty_out_va(), and vty_write().

buffer_putc()

void buffer_putc	(	struct buffer *	b,
		unsigned char	c
	)

References buffer_put(), and c.

buffer_putstr()

void buffer_putstr	(	struct buffer *	b,
		const char *	c
	)

References buffer_put(), and c.

buffer_reset()

void buffer_reset

(

struct buffer *

b

)

References BUFFER_DATA_FREE, data, buffer::head, buffer_data::next, and buffer::tail.

Referenced by buffer_free(), vty_buffer_reset(), vty_read(), and vty_reset().

buffer_write()

buffer_status_t buffer_write	(	struct buffer *	b,
		int	fd,
		const void *	p,
		size_t	size
	)

References BUFFER_EMPTY, BUFFER_ERROR, buffer_flush_available(), BUFFER_PENDING, buffer_put(), ERRNO_IO_RETRY, fd, and buffer::head.