Jack2  1.9.10
ringbuffer.h
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1 /*
2  Copyright (C) 2000 Paul Davis
3  Copyright (C) 2003 Rohan Drape
4 
5  This program is free software; you can redistribute it and/or modify
6  it under the terms of the GNU Lesser General Public License as published by
7  the Free Software Foundation; either version 2.1 of the License, or
8  (at your option) any later version.
9 
10  This program is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  GNU Lesser General Public License for more details.
14 
15  You should have received a copy of the GNU Lesser General Public License
16  along with this program; if not, write to the Free Software
17  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 
19 */
20 
21 #ifndef _RINGBUFFER_H
22 #define _RINGBUFFER_H
23 
24 #ifdef __cplusplus
25 extern "C"
26 {
27 #endif
28 
29 #include <sys/types.h>
30 
45 typedef struct {
46  char *buf;
47  size_t len;
48 }
50 
51 typedef struct {
52  char *buf;
53  volatile size_t write_ptr;
54  volatile size_t read_ptr;
55  size_t size;
56  size_t size_mask;
57  int mlocked;
58 }
60 
72 
80 
103 
125 
136 size_t jack_ringbuffer_read(jack_ringbuffer_t *rb, char *dest, size_t cnt);
137 
153 size_t jack_ringbuffer_peek(jack_ringbuffer_t *rb, char *dest, size_t cnt);
154 
166 void jack_ringbuffer_read_advance(jack_ringbuffer_t *rb, size_t cnt);
167 
176 
185 
194 
203 void jack_ringbuffer_reset_size (jack_ringbuffer_t * rb, size_t sz);
204 
214 size_t jack_ringbuffer_write(jack_ringbuffer_t *rb, const char *src,
215  size_t cnt);
216 
229 
238 
239 #ifdef __cplusplus
240 }
241 #endif
242 
243 #endif
size_t jack_ringbuffer_read_space(const jack_ringbuffer_t *rb)
void jack_ringbuffer_write_advance(jack_ringbuffer_t *rb, size_t cnt)
jack_ringbuffer_t * jack_ringbuffer_create(size_t sz)
size_t jack_ringbuffer_write_space(const jack_ringbuffer_t *rb)
void jack_ringbuffer_free(jack_ringbuffer_t *rb)
void jack_ringbuffer_reset(jack_ringbuffer_t *rb)
void jack_ringbuffer_get_read_vector(const jack_ringbuffer_t *rb, jack_ringbuffer_data_t *vec)
void jack_ringbuffer_get_write_vector(const jack_ringbuffer_t *rb, jack_ringbuffer_data_t *vec)
size_t jack_ringbuffer_write(jack_ringbuffer_t *rb, const char *src, size_t cnt)
int jack_ringbuffer_mlock(jack_ringbuffer_t *rb)
void jack_ringbuffer_read_advance(jack_ringbuffer_t *rb, size_t cnt)
size_t jack_ringbuffer_read(jack_ringbuffer_t *rb, char *dest, size_t cnt)
void jack_ringbuffer_reset_size(jack_ringbuffer_t *rb, size_t sz)
size_t jack_ringbuffer_peek(jack_ringbuffer_t *rb, char *dest, size_t cnt)

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