/src/gnutls/lib/system/threads.c
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1  |  | /*  | 
2  |  |  * Copyright (C) 2010-2016 Free Software Foundation, Inc.  | 
3  |  |  * Copyright (C) 2015-2016 Red Hat, Inc.  | 
4  |  |  *  | 
5  |  |  * Author: Nikos Mavrogiannopoulos  | 
6  |  |  *  | 
7  |  |  * This file is part of GnuTLS.  | 
8  |  |  *  | 
9  |  |  * The GnuTLS is free software; you can redistribute it and/or  | 
10  |  |  * modify it under the terms of the GNU Lesser General Public License  | 
11  |  |  * as published by the Free Software Foundation; either version 2.1 of  | 
12  |  |  * the License, or (at your option) any later version.  | 
13  |  |  *  | 
14  |  |  * This library is distributed in the hope that it will be useful, but  | 
15  |  |  * 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 License  | 
20  |  |  * along with this program.  If not, see <https://www.gnu.org/licenses/>  | 
21  |  |  *  | 
22  |  |  */  | 
23  |  |  | 
24  |  | #include "config.h"  | 
25  |  | #include "system.h"  | 
26  |  | #include "gnutls_int.h"  | 
27  |  | #include "errors.h"  | 
28  |  |  | 
29  |  | #include <sys/socket.h>  | 
30  |  | #include <errno.h>  | 
31  |  | #include <sys/stat.h>  | 
32  |  | #include <sys/types.h>  | 
33  |  |  | 
34  |  | #include "glthread/lock.h"  | 
35  |  |  | 
36  |  | /* System specific lock function wrappers.  | 
37  |  |  */  | 
38  |  |  | 
39  |  | /* Thread stuff */  | 
40  |  |  | 
41  |  | static int gnutls_system_mutex_init(void **priv)  | 
42  | 0  | { | 
43  | 0  |   gl_lock_t *lock = malloc(sizeof(gl_lock_t));  | 
44  |  | 
  | 
45  | 0  |   if (!lock) { | 
46  | 0  |     return GNUTLS_E_MEMORY_ERROR;  | 
47  | 0  |   }  | 
48  |  |  | 
49  | 0  |   if (glthread_lock_init(lock)) { | 
50  | 0  |     free(lock);  | 
51  | 0  |     return gnutls_assert_val(GNUTLS_E_LOCKING_ERROR);  | 
52  | 0  |   }  | 
53  |  |  | 
54  | 0  |   *priv = lock;  | 
55  | 0  |   return 0;  | 
56  | 0  | }  | 
57  |  |  | 
58  |  | static int gnutls_system_mutex_deinit(void **priv)  | 
59  | 0  | { | 
60  | 0  |   if (glthread_lock_destroy((gl_lock_t *)*priv)) { | 
61  | 0  |     return gnutls_assert_val(GNUTLS_E_LOCKING_ERROR);  | 
62  | 0  |   }  | 
63  | 0  |   free(*priv);  | 
64  | 0  |   return 0;  | 
65  | 0  | }  | 
66  |  |  | 
67  |  | static int gnutls_system_mutex_lock(void **priv)  | 
68  | 0  | { | 
69  | 0  |   if (glthread_lock_lock((gl_lock_t *)*priv)) { | 
70  | 0  |     return gnutls_assert_val(GNUTLS_E_LOCKING_ERROR);  | 
71  | 0  |   }  | 
72  | 0  |   return 0;  | 
73  | 0  | }  | 
74  |  |  | 
75  |  | static int gnutls_system_mutex_unlock(void **priv)  | 
76  | 0  | { | 
77  | 0  |   if (glthread_lock_unlock((gl_lock_t *)*priv)) { | 
78  | 0  |     return gnutls_assert_val(GNUTLS_E_LOCKING_ERROR);  | 
79  | 0  |   }  | 
80  | 0  |   return 0;  | 
81  | 0  | }  | 
82  |  |  | 
83  |  | mutex_init_func gnutls_mutex_init = gnutls_system_mutex_init;  | 
84  |  | mutex_deinit_func gnutls_mutex_deinit = gnutls_system_mutex_deinit;  | 
85  |  | mutex_lock_func gnutls_mutex_lock = gnutls_system_mutex_lock;  | 
86  |  | mutex_unlock_func gnutls_mutex_unlock = gnutls_system_mutex_unlock;  |