1/***
2  This file is part of PulseAudio.
3
4  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
5
6  PulseAudio is free software; you can redistribute it and/or modify
7  it under the terms of the GNU Lesser General Public License as published
8  by the Free Software Foundation; either version 2.1 of the License,
9  or (at your option) any later version.
10
11  PulseAudio is distributed in the hope that it will be useful, but
12  WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  General Public License for more details.
15
16  You should have received a copy of the GNU Lesser General Public License
17  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
18***/
19
20#ifdef HAVE_CONFIG_H
21#include <config.h>
22#endif
23
24#include <windows.h>
25
26#include <pulse/xmalloc.h>
27#include <pulsecore/macro.h>
28
29#include "semaphore.h"
30
31struct pa_semaphore {
32    HANDLE sema;
33};
34
35pa_semaphore* pa_semaphore_new(unsigned value) {
36    pa_semaphore *s;
37
38    s = pa_xnew(pa_semaphore, 1);
39
40    s->sema = CreateSemaphore(NULL, value, 32767, NULL);
41    pa_assert(s->sema != NULL);
42
43    return s;
44}
45
46void pa_semaphore_free(pa_semaphore *s) {
47    pa_assert(s);
48    CloseHandle(s->sema);
49    pa_xfree(s);
50}
51
52void pa_semaphore_post(pa_semaphore *s) {
53    pa_assert(s);
54    ReleaseSemaphore(s->sema, 1, NULL);
55}
56
57void pa_semaphore_wait(pa_semaphore *s) {
58    pa_assert(s);
59    WaitForSingleObject(s->sema, INFINITE);
60}
61