1 /* $OpenBSD: abuf.h,v 1.2 2016/03/23 06:11:52 ratchov Exp $ */ 2 /* 3 * Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 #ifndef ABUF_H 18 #define ABUF_H 19 20 struct abuf { 21 int start; /* offset (frames) where stored data starts */ 22 int used; /* frames stored in the buffer */ 23 unsigned int len; /* total size of the buffer (frames) */ 24 unsigned char *data; 25 }; 26 27 void abuf_init(struct abuf *, unsigned int); 28 void abuf_done(struct abuf *); 29 void abuf_log(struct abuf *); 30 unsigned char *abuf_rgetblk(struct abuf *, int *); 31 unsigned char *abuf_wgetblk(struct abuf *, int *); 32 void abuf_rdiscard(struct abuf *, int); 33 void abuf_wcommit(struct abuf *, int); 34 35 #endif /* !defined(ABUF_H) */ 36