/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * mono-mutex.h: Portability wrappers around POSIX Mutexes * * Authors: Jeffrey Stedfast * * Copyright 2002 Ximian, Inc. (www.ximian.com) */ #ifndef __MONO_MUTEX_H__ #define __MONO_MUTEX_H__ #include #ifdef HAVE_PTHREAD_H #include #endif #include G_BEGIN_DECLS #ifndef HOST_WIN32 typedef struct { pthread_mutex_t mutex; gboolean complete; } mono_once_t; #define MONO_ONCE_INIT { PTHREAD_MUTEX_INITIALIZER, FALSE } int mono_once (mono_once_t *once, void (*once_init) (void)); #ifdef USE_MONO_MUTEX #define MONO_THREAD_NONE ((pthread_t)~0) /* mutex types... */ enum { MONO_MUTEX_NORMAL, MONO_MUTEX_RECURSIVE, MONO_MUTEX_ERRORCHECK = MONO_MUTEX_NORMAL, MONO_MUTEX_DEFAULT = MONO_MUTEX_NORMAL }; /* mutex protocol attributes... */ enum { MONO_THREAD_PRIO_NONE, MONO_THREAD_PRIO_INHERIT, MONO_THREAD_PRIO_PROTECT, }; /* mutex process sharing attributes... */ enum { MONO_THREAD_PROCESS_PRIVATE, MONO_THREAD_PROCESS_SHARED }; typedef struct _mono_mutexattr_t { int type : 1; int shared : 1; int protocol : 2; int priority : 28; } mono_mutexattr_t; typedef struct _mono_mutex_t { int type; pthread_t owner; short waiters; short depth; pthread_mutex_t mutex; pthread_cond_t cond; } mono_mutex_t; /* static initializers */ #define MONO_MUTEX_INITIALIZER { 0, MONO_THREAD_NONE, 0, 0, PTHREAD_MUTEX_INITIALIZER, 0 } #define MONO_RECURSIVE_MUTEX_INITIALIZER { 0, MONO_THREAD_NONE, 0, 0, PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER } int mono_mutexattr_init (mono_mutexattr_t *attr); int mono_mutexattr_settype (mono_mutexattr_t *attr, int type); int mono_mutexattr_gettype (mono_mutexattr_t *attr, int *type); int mono_mutexattr_setpshared (mono_mutexattr_t *attr, int pshared); int mono_mutexattr_getpshared (mono_mutexattr_t *attr, int *pshared); int mono_mutexattr_setprotocol (mono_mutexattr_t *attr, int protocol); int mono_mutexattr_getprotocol (mono_mutexattr_t *attr, int *protocol); int mono_mutexattr_setprioceiling (mono_mutexattr_t *attr, int prioceiling); int mono_mutexattr_getprioceiling (mono_mutexattr_t *attr, int *prioceiling); int mono_mutexattr_destroy (mono_mutexattr_t *attr); int mono_mutex_init (mono_mutex_t *mutex, const mono_mutexattr_t *attr); int mono_mutex_lock (mono_mutex_t *mutex); int mono_mutex_trylock (mono_mutex_t *mutex); int mono_mutex_timedlock (mono_mutex_t *mutex, const struct timespec *timeout); int mono_mutex_unlock (mono_mutex_t *mutex); int mono_mutex_destroy (mono_mutex_t *mutex); #define mono_cond_init(cond,attr) pthread_cond_init (cond, attr) int mono_cond_wait (pthread_cond_t *cond, mono_mutex_t *mutex); int mono_cond_timedwait (pthread_cond_t *cond, mono_mutex_t *mutex, const struct timespec *timeout); #define mono_cond_signal(cond) pthread_cond_signal (cond) #define mono_cond_broadcast(cond) pthread_cond_broadcast (cond) #define mono_cond_destroy(cond) #else /* system is equipped with a fully-functional pthread mutex library */ #define MONO_MUTEX_NORMAL PTHREAD_MUTEX_NORMAL #define MONO_MUTEX_RECURSIVE PTHREAD_MUTEX_RECURSIVE #define MONO_MUTEX_ERRORCHECK PTHREAD_MUTEX_NORMAL #define MONO_MUTEX_DEFAULT PTHREAD_MUTEX_NORMAL #define MONO_THREAD_PRIO_NONE PTHREAD_PRIO_NONE #define MONO_THREAD_PRIO_INHERIT PTHREAD_PRIO_INHERIT #define MONO_THREAD_PRIO_PROTECT PTHREAD_PRIO_PROTECT #define MONO_THREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE #define MONO_THREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED typedef pthread_mutex_t mono_mutex_t; typedef pthread_mutexattr_t mono_mutexattr_t; typedef pthread_cond_t mono_cond_t; #define MONO_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER #define MONO_RECURSIVE_MUTEX_INITIALIZER PTHREAD_RECURSIVE_MUTEX_INITIALIZER #define MONO_COND_INITIALIZER PTHREAD_COND_INITIALIZER #define mono_mutexattr_init(attr) pthread_mutexattr_init (attr) #define mono_mutexattr_settype(attr,type) pthread_mutexattr_settype (attr, type) #define mono_mutexattr_gettype(attr,type) pthread_mutexattr_gettype (attr, type) #define mono_mutexattr_setpshared(attr,pshared) pthread_mutexattr_setpshared (attr, pshared) #define mono_mutexattr_getpshared(attr,pshared) pthread_mutexattr_getpshared (attr, pshared) #define mono_mutexattr_setprotocol(attr,protocol) pthread_mutexattr_setprotocol (attr, protocol) #define mono_mutexattr_getprotocol(attr,protocol) pthread_mutexattr_getprotocol (attr, protocol) #define mono_mutexattr_setprioceiling(attr,prioceiling) pthread_mutexattr_setprioceiling (attr, prioceiling) #define mono_mutexattr_getprioceiling(attr,prioceiling) pthread_mutexattr_getprioceiling (attr, prioceiling) #define mono_mutexattr_destroy(attr) pthread_mutexattr_destroy (attr) #define mono_mutex_init(mutex,attr) pthread_mutex_init (mutex, attr) #define mono_mutex_lock(mutex) pthread_mutex_lock (mutex) #define mono_mutex_trylock(mutex) pthread_mutex_trylock (mutex) #define mono_mutex_timedlock(mutex,timeout) pthread_mutex_timedlock (mutex, timeout) #define mono_mutex_unlock(mutex) pthread_mutex_unlock (mutex) #define mono_mutex_destroy(mutex) pthread_mutex_destroy (mutex) #define mono_cond_init(cond,attr) pthread_cond_init (cond,attr) #define mono_cond_wait(cond,mutex) pthread_cond_wait (cond, mutex) #define mono_cond_timedwait(cond,mutex,timeout) pthread_cond_timedwait (cond, mutex, timeout) #define mono_cond_signal(cond) pthread_cond_signal (cond) #define mono_cond_broadcast(cond) pthread_cond_broadcast (cond) #define mono_cond_destroy(cond) #endif /* USE_MONO_MUTEX */ /* This is a function so it can be passed to pthread_cleanup_push - * that is a macro and giving it a macro as a parameter breaks. */ G_GNUC_UNUSED static inline int mono_mutex_unlock_in_cleanup (mono_mutex_t *mutex) { return(mono_mutex_unlock (mutex)); } #else typedef CRITICAL_SECTION mono_mutex_t; typedef HANDLE mono_cond_t; #define mono_mutex_init(mutex,attr) InitializeCriticalSection((mutex)) #define mono_mutex_lock(mutex) EnterCriticalSection((mutex)) #define mono_mutex_unlock(mutex) LeaveCriticalSection((mutex)) #define mono_mutex_destroy(mutex) DeleteCriticalSection((mutex)) #define mono_cond_init(cond,attr) do{*(cond) = CreateEvent(NULL,FALSE,FALSE,NULL); } while (0) #define mono_cond_wait(cond,mutex) WaitForSingleObject(*(cond),INFINITE) #define mono_cond_timedwait(cond,mutex,timeout) WaitForSingleObject(*(cond),timeout) #define mono_cond_signal(cond) SetEvent(*(cond)) #define mono_cond_broadcast(cond) (!SetEvent(*(cond))) #define mono_cond_destroy(cond) CloseHandle(*(cond)) #define MONO_MUTEX_INITIALIZER NULL #define MONO_COND_INITIALIZER NULL #endif G_END_DECLS #endif /* __MONO_MUTEX_H__ */