Subversion Repositories HelenOS-historic

Rev

Rev 534 | Rev 1502 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 534 Rev 1416
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