nsprpub/pr/src/md/os2/os2sem.c

branch
TOR_BUG_3246
changeset 5
4ab42b5ab56c
equal deleted inserted replaced
-1:000000000000 0:1f0735721584
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 /*
7 * OS/2-specific semaphore handling code.
8 *
9 */
10
11 #include "primpl.h"
12
13
14 void
15 _PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value)
16 {
17 int rv;
18
19 /* Our Sems don't support a value > 1 */
20 PR_ASSERT(value <= 1);
21
22 rv = DosCreateEventSem(NULL, &md->sem, 0, 0);
23 PR_ASSERT(rv == NO_ERROR);
24 }
25
26 void
27 _PR_MD_DESTROY_SEM(_MDSemaphore *md)
28 {
29 int rv;
30 rv = DosCloseEventSem(md->sem);
31 PR_ASSERT(rv == NO_ERROR);
32
33 }
34
35 PRStatus
36 _PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks)
37 {
38 int rv;
39 rv = DosWaitEventSem(md->sem, PR_IntervalToMilliseconds(ticks));
40
41 if (rv == NO_ERROR)
42 return PR_SUCCESS;
43 else
44 return PR_FAILURE;
45 }
46
47 PRStatus
48 _PR_MD_WAIT_SEM(_MDSemaphore *md)
49 {
50 return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT);
51 }
52
53 void
54 _PR_MD_POST_SEM(_MDSemaphore *md)
55 {
56 int rv;
57 rv = DosPostEventSem(md->sem);
58 PR_ASSERT(rv == NO_ERROR);
59 }
60
61

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