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/* $Id: buffer.h,v 1.7 2001-11-25 22:05:42 rjkaes Exp $
*
* See 'buffer.c' for a detailed description.
*
* Copyright (C) 1999 Robert James Kaes (rjkaes@flarenet.com)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef _TINYPROXY_BUFFER_H_
#define _TINYPROXY_BUFFER_H_
/*
* This structure contains the total size of a buffer, plus pointers to the
* head and tail of the buffer.
*/
struct buffer_s {
struct bufline_s *head; /* top of the buffer */
struct bufline_s *tail; /* bottom of the buffer */
size_t size; /* total size of the buffer */
};
/*
* Return the size of a buffer (pass a pointer to a buffer_s structure.)
*/
#define BUFFER_SIZE(x) (x)->size
extern struct buffer_s *new_buffer(void);
extern void delete_buffer(struct buffer_s *buffptr);
/*
* Add a new line to the given buffer. The data IS copied into the structure.
*/
extern int add_to_buffer(struct buffer_s *buffptr, unsigned char *data,
size_t length);
extern ssize_t read_buffer(int fd, struct buffer_s *buffptr);
extern ssize_t write_buffer(int fd, struct buffer_s *buffptr);
#endif /* __BUFFER_H_ */
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