5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 2002 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; version 2 of the License.
13 This program 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
16 GNU General Public License for more details.
19 /* I used Apache's APR code as a reference here. */
22 #include "silcincludes.h"
26 /* SILC Mutex structure */
27 struct SilcMutexStruct {
32 bool silc_mutex_alloc(SilcMutex *mutex)
36 *mutex = silc_calloc(1, sizeof(**mutex));
40 ret = create_sem(0, "SILC_MUTEX");
41 if (ret < B_NO_ERROR) {
46 (*mutex)->sema_count = 0;
52 void silc_mutex_free(SilcMutex mutex)
54 delete_sem(mutex->sema);
58 void silc_mutex_lock(SilcMutex mutex)
60 if (atomic_add(&mutex->sema_count, 1) > 0) {
61 if (acquire_sem(mutex->sema) < B_NO_ERROR)
66 void silc_mutex_unlock(SilcMutex mutex)
68 if (atomic_add(&mutes->sema_count, -1) > 1) {
69 if (release_sem(mutex->sema) < B_NO_ERROR)
74 #endif /* SILC_THREADS */