1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
3 * mono-mutex.h: Portability wrappers around POSIX Mutexes
5 * Authors: Jeffrey Stedfast <fejj@ximian.com>
7 * Copyright 2002 Ximian, Inc. (www.ximian.com)
10 #ifndef __MONO_MUTEX_H__
11 #define __MONO_MUTEX_H__
31 pthread_mutex_t mutex;
35 #define MONO_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, FALSE }
37 int mono_once (mono_once_t *once, void (*once_init) (void));
39 typedef pthread_mutex_t mono_mutex_t;
40 typedef pthread_cond_t mono_cond_t;
42 #define mono_mutex_init(mutex) pthread_mutex_init (mutex, NULL)
43 #define mono_mutex_lock(mutex) pthread_mutex_lock (mutex)
44 #define mono_mutex_trylock(mutex) pthread_mutex_trylock (mutex)
45 #define mono_mutex_timedlock(mutex,timeout) pthread_mutex_timedlock (mutex, timeout)
46 #define mono_mutex_unlock(mutex) pthread_mutex_unlock (mutex)
47 #define mono_mutex_destroy(mutex) pthread_mutex_destroy (mutex)
49 #define mono_cond_init(cond,attr) pthread_cond_init (cond,attr)
50 #define mono_cond_wait(cond,mutex) pthread_cond_wait (cond, mutex)
51 #define mono_cond_timedwait(cond,mutex,timeout) pthread_cond_timedwait (cond, mutex, timeout)
52 #define mono_cond_signal(cond) pthread_cond_signal (cond)
53 #define mono_cond_broadcast(cond) pthread_cond_broadcast (cond)
54 #define mono_cond_destroy(cond)
57 * This should be used instead of mono_cond_timedwait, since that function is not implemented on windows.
59 int mono_cond_timedwait_ms (mono_cond_t *cond, mono_mutex_t *mutex, int timeout_ms);
61 /* This is a function so it can be passed to pthread_cleanup_push -
62 * that is a macro and giving it a macro as a parameter breaks.
65 static inline int mono_mutex_unlock_in_cleanup (mono_mutex_t *mutex)
67 return(mono_mutex_unlock (mutex));
70 /* Returns zero on success. */
72 mono_mutex_init_recursive (mono_mutex_t *mutex)
75 pthread_mutexattr_t attr;
77 pthread_mutexattr_init (&attr);
78 pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
79 res = pthread_mutex_init (mutex, &attr);
80 pthread_mutexattr_destroy (&attr);
87 typedef CRITICAL_SECTION mono_mutex_t;
88 typedef CONDITION_VARIABLE mono_cond_t;
90 #define mono_mutex_init(mutex) (InitializeCriticalSection((mutex)), 0)
91 #define mono_mutex_init_recursive(mutex) (InitializeCriticalSection((mutex)), 0)
92 #define mono_mutex_lock(mutex) EnterCriticalSection((mutex))
93 #define mono_mutex_trylock(mutex) (!TryEnterCriticalSection((mutex)))
94 #define mono_mutex_unlock(mutex) LeaveCriticalSection((mutex))
95 #define mono_mutex_destroy(mutex) DeleteCriticalSection((mutex))
98 mono_cond_init (mono_cond_t *cond, int attr)
100 InitializeConditionVariable (cond);
105 mono_cond_wait (mono_cond_t *cond, mono_mutex_t *mutex)
107 return SleepConditionVariableCS (cond, mutex, INFINITE) ? 0 : 1;
111 mono_cond_timedwait (mono_cond_t *cond, mono_mutex_t *mutex, struct timespec *timeout)
114 g_assert_not_reached ();
119 mono_cond_signal (mono_cond_t *cond)
121 WakeConditionVariable (cond);
126 mono_cond_broadcast (mono_cond_t *cond)
128 WakeAllConditionVariable (cond);
133 mono_cond_destroy (mono_cond_t *cond)
139 mono_cond_timedwait_ms (mono_cond_t *cond, mono_mutex_t *mutex, int timeout_ms)
141 return SleepConditionVariableCS (cond, mutex, timeout_ms) ? 0 : 1;
146 int mono_mutex_init_suspend_safe (mono_mutex_t *mutex);
150 #endif /* __MONO_MUTEX_H__ */