1 |
ben |
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 |
ben |
2 |
* more information on http://herewe.servebeer.com/libspopc/ |
8 |
ben |
1 |
* |
9 |
|
|
* This library is free software; you can redistribute it and/or |
10 |
|
|
* modify it under the terms of the GNU Lesser General Public |
11 |
|
|
* License as published by the Free Software Foundation; either |
12 |
|
|
* version 2.1 of the License, or (at your option) any later version. |
13 |
|
|
* |
14 |
|
|
* This library is distributed in the hope that it will be useful, |
15 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
17 |
|
|
* Lesser General Public License for more details. |
18 |
|
|
* |
19 |
|
|
* You should have received a copy of the GNU Lesser General Public |
20 |
|
|
* License along with this library; if not, write to the Free Software |
21 |
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
22 |
|
|
*/ |
23 |
|
|
|
24 |
|
|
#ifndef MUTEX_H |
25 |
|
|
#define MUTEX_H |
26 |
|
|
|
27 |
|
|
#include <semaphore.h> |
28 |
|
|
|
29 |
|
|
typedef sem_t mutex; |
30 |
|
|
|
31 |
|
|
/* initializes a thread-wide mutex */ |
32 |
|
|
int mutex_init(mutex* id); |
33 |
|
|
|
34 |
|
|
/* acquire the given mutex to enter in a critical section */ |
35 |
|
|
int mutex_in (mutex* id); |
36 |
|
|
|
37 |
|
|
/* quit the critical section, by releasing the given mutex */ |
38 |
|
|
int mutex_out (mutex* id); |
39 |
|
|
|
40 |
|
|
/* clean the mutex, thus re-initable by mutex_init() */ |
41 |
|
|
int mutex_clean(mutex* id); |
42 |
|
|
|
43 |
|
|
#endif |