Mercurial > hg > index.fcgi > gift-gnutella > gift-gnutella-0.0.11-1pba

annotate src/io/io_buf.h @ 0:d39e1d0d75b6

find changesets by author, revision, files, or words in the commit message
initial add
author paulo@hit-nxdomain.opendns.com
date Sat, 20 Feb 2010 21:18:28 -0800
parents
children
rev   line source
paulo@0 1 /*
paulo@0 2 * $Id: io_buf.h,v 1.2 2003/09/17 17:44:11 hipnod Exp $
paulo@0 3 *
paulo@0 4 * Copyright (C) 2003 giFT project (gift.sourceforge.net)
paulo@0 5 *
paulo@0 6 * This program is free software; you can redistribute it and/or modify it
paulo@0 7 * under the terms of the GNU General Public License as published by the
paulo@0 8 * Free Software Foundation; either version 2, or (at your option) any
paulo@0 9 * later version.
paulo@0 10 *
paulo@0 11 * This program is distributed in the hope that it will be useful, but
paulo@0 12 * WITHOUT ANY WARRANTY; without even the implied warranty of
paulo@0 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
paulo@0 14 * General Public License for more details.
paulo@0 15 */
paulo@0 16
paulo@0 17 #ifndef GIFT_GT_IO_BUF_H_
paulo@0 18 #define GIFT_GT_IO_BUF_H_
paulo@0 19
paulo@0 20 /*****************************************************************************/
paulo@0 21
paulo@0 22 /*
paulo@0 23 * This duplicates libgift's String somewhat...
paulo@0 24 */
paulo@0 25 struct io_buf
paulo@0 26 {
paulo@0 27 uint8_t *data;
paulo@0 28 size_t size;
paulo@0 29 size_t r_offs;
paulo@0 30 size_t w_offs;
paulo@0 31 };
paulo@0 32
paulo@0 33 /*****************************************************************************/
paulo@0 34
paulo@0 35 /*
paulo@0 36 * Macros for accessing particular things about an I/O buf...
paulo@0 37 */
paulo@0 38
paulo@0 39 #define io_buf_read_avail(io_buf) \
paulo@0 40 ((io_buf)->w_offs - (io_buf)->r_offs)
paulo@0 41
paulo@0 42 #define io_buf_len(io_buf) \
paulo@0 43 ((io_buf)->w_offs)
paulo@0 44
paulo@0 45 #define io_buf_size(io_buf) \
paulo@0 46 ((io_buf)->size)
paulo@0 47
paulo@0 48 #define io_buf_write_avail(io_buf) \
paulo@0 49 ((io_buf)->size - (io_buf)->w_offs)
paulo@0 50
paulo@0 51 #define io_buf_write_ptr(io_buf) \
paulo@0 52 (&(io_buf)->data[(io_buf)->w_offs])
paulo@0 53
paulo@0 54 #define io_buf_read_ptr(iobuf) \
paulo@0 55 (&(iobuf)->data[(iobuf)->r_offs])
paulo@0 56
paulo@0 57 /*****************************************************************************/
paulo@0 58
paulo@0 59 struct io_buf *io_buf_new (size_t len);
paulo@0 60 void io_buf_free (struct io_buf *buf);
paulo@0 61 uint8_t *io_buf_free_keep (struct io_buf *buf);
paulo@0 62
paulo@0 63 BOOL io_buf_resize (struct io_buf *buf, size_t len);
paulo@0 64 void io_buf_reset (struct io_buf *buf);
paulo@0 65
paulo@0 66 void io_buf_push (struct io_buf *buf, size_t len);
paulo@0 67 void io_buf_pop (struct io_buf *buf, size_t len);
paulo@0 68
paulo@0 69 size_t io_buf_copy (struct io_buf *dst, struct io_buf *src,
paulo@0 70 size_t len);
paulo@0 71
paulo@0 72 /*****************************************************************************/
paulo@0 73
paulo@0 74 #endif /* GIFT_GT_IO_BUF_H_ */