63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
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/* $Id: buffer.h,v 1.1.1.1 2000-02-16 17:32:22 sdyoung Exp $
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*
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* See 'buffer.c' for a detailed description.
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*
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* Copyright (C) 1999 Robert James Kaes (rjkaes@flarenet.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef __BUFFER_H_
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#define __BUFFER_H_ 1
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#define MAXBUFFSIZE 20480
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struct bufline_s {
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unsigned char *string; /* the actual string of data */
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struct bufline_s *next; /* pointer to next in linked list */
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unsigned int length; /* length of the string of data */
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unsigned int pos; /* start sending from this offset */
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};
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struct buffer_s {
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struct bufline_s *head; /* top of the buffer */
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struct bufline_s *tail; /* bottom of the buffer */
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unsigned long int size; /* total size of the buffer */
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};
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#define buffer_head(x) (((struct buffer_s *)(x))->head)
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#define buffer_tail(x) (((struct buffer_s *)(x))->tail)
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#define buffer_size(x) (((struct buffer_s *)(x))->size)
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/* Create and delete buffers */
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extern struct buffer_s *new_buffer(void);
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extern void delete_buffer(struct buffer_s *buffptr);
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/* Operate on the end of the list */
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extern struct bufline_s *push_buffer(struct buffer_s *buffptr,
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unsigned char *data, unsigned int length);
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extern struct bufline_s *pop_buffer(struct buffer_s *buffptr);
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/* Operate on the head of the list */
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extern struct bufline_s *unshift_buffer(struct buffer_s *buffptr,
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unsigned char *data,
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unsigned int length);
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extern struct bufline_s *shift_buffer(struct buffer_s *buffptr);
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/* Free a buffer line */
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extern void free_line(struct bufline_s *line);
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/* Read/Write the buffer to a socket */
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extern int readbuff(int fd, struct buffer_s *buffptr);
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extern int writebuff(int fd, struct buffer_s *buffptr);
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#endif /* __BUFFER_H_ */
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