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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifndef __CONDVAR_H__ |
29 | #ifndef __CONDVAR_H__ |
30 | #define __CONDVAR_H__ |
30 | #define __CONDVAR_H__ |
31 | 31 | ||
32 | #include <arch/types.h> |
32 | #include <arch/types.h> |
33 | #include <synch/waitq.h> |
33 | #include <synch/waitq.h> |
34 | #include <typedefs.h> |
34 | #include <typedefs.h> |
35 | #include <synch/synch.h> |
35 | #include <synch/synch.h> |
36 | 36 | ||
37 | struct condvar { |
37 | struct condvar { |
38 | waitq_t wq; |
38 | waitq_t wq; |
39 | }; |
39 | }; |
40 | 40 | ||
41 | #define condvar_wait(cv,mtx) \ |
41 | #define condvar_wait(cv,mtx) \ |
42 | _condvar_wait_timeout((cv),(mtx),SYNCH_NO_TIMEOUT,SYNCH_BLOCKING) |
42 | _condvar_wait_timeout((cv),(mtx),SYNCH_NO_TIMEOUT) |
43 | #define condvar_trywait(cv,mtx) \ |
- | |
44 | _condvar_wait_timeout((cv),(mtx),SYNCH_NO_TIMEOUT,SYNCH_NON_BLOCKING) |
- | |
45 | #define condvar_wait_timeout(cv,mtx,usec) \ |
43 | #define condvar_wait_timeout(cv,mtx,usec) \ |
46 | _condvar_wait_timeout((cv),(mtx),(usec),SYNCH_NON_BLOCKING) |
44 | _condvar_wait_timeout((cv),(mtx),(usec)) |
47 | 45 | ||
48 | extern void condvar_initialize(condvar_t *cv); |
46 | extern void condvar_initialize(condvar_t *cv); |
49 | extern void condvar_signal(condvar_t *cv); |
47 | extern void condvar_signal(condvar_t *cv); |
50 | extern void condvar_broadcast(condvar_t *cv); |
48 | extern void condvar_broadcast(condvar_t *cv); |
51 | extern int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec, int trywait); |
49 | extern int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec); |
52 | 50 | ||
53 | #endif |
51 | #endif |
54 | 52 |