/[libspopc]/mutex.h
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Contents of /mutex.h

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Revision 25 - (show annotations)
Wed Apr 11 14:06:48 2012 UTC (7 years, 1 month ago) by ben
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Removed old homepage reference in docs and headers

1 /* this is mutex.h file, part of the libspopc library sources
2 * copyright © 2002- Benoit Rouits <brouits@free.fr>
3 * released under the terms of the GNU Lesser General Public Licence.
4 *
5 * libspopc offers simple API for a pop3 client.
6 * See RFC 1725 for pop3 specifications.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #ifndef MUTEX_H
24 #define MUTEX_H
25
26 #ifdef USE_SEM /* no posix thread mutex */
27 #include <semaphore.h>
28 typedef sem_t mutex; /* use unix rt semaphores from librt */
29 #else
30 #ifdef USE_PMUTEX
31 #include <pthread.h>
32 typedef pthread_mutex_t mutex; /* use posix thread mutexes */
33 #else
34 typedef int mutex;
35 #endif
36 #endif
37
38 /* initializes a thread-wide mutex */
39 int mutex_init(mutex* id);
40
41 /* acquire the given mutex to enter in a critical section */
42 int mutex_in (mutex* id);
43
44 /* quit the critical section, by releasing the given mutex */
45 int mutex_out (mutex* id);
46
47 /* clean the mutex, thus re-initable by mutex_init() */
48 int mutex_clean(mutex* id);
49
50 #endif

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