3 * $Id: buffer.h,v 1.2 1998/11/12 06:01:19 gram Exp $
6 * Copyright (c) 1998 by Gilbert Ramirez <gram@verdict.uthscsa.edu>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #define SOME_FUNCTIONS_ARE_DEFINES
26 typedef struct Buffer {
29 unsigned int allocated;
31 unsigned int first_free;
35 void buffer_init(Buffer* buffer, unsigned int space);
36 void buffer_free(Buffer* buffer);
37 void buffer_assure_space(Buffer* buffer, unsigned int space);
38 void buffer_append(Buffer* buffer, char *from, unsigned int bytes);
39 void buffer_remove_start(Buffer* buffer, unsigned int bytes);
41 #ifdef SOME_FUNCTIONS_ARE_DEFINES
42 #define buffer_increase_length(buffer,bytes) (buffer)->first_free += (bytes)
43 #define buffer_length(buffer) ((buffer)->first_free - (buffer)->start)
44 #define buffer_start_ptr(buffer) ((buffer)->data + (buffer)->start)
45 #define buffer_end_ptr(buffer) ((buffer)->data + (buffer)->first_free)
47 void buffer_increase_length(Buffer* buffer, unsigned int bytes);
48 unsigned int buffer_length(Buffer* buffer);
49 char* buffer_start_ptr(Buffer* buffer);
50 char* buffer_end_ptr(Buffer* buffer);