diff options
Diffstat (limited to 'contrib/gcc/gthr-posix.h')
| -rw-r--r-- | contrib/gcc/gthr-posix.h | 212 |
1 files changed, 112 insertions, 100 deletions
diff --git a/contrib/gcc/gthr-posix.h b/contrib/gcc/gthr-posix.h index 58bfcb3..9149e64 100644 --- a/contrib/gcc/gthr-posix.h +++ b/contrib/gcc/gthr-posix.h @@ -35,6 +35,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #define __GTHREADS 1 #include <pthread.h> +#include <unistd.h> typedef pthread_key_t __gthread_key_t; typedef pthread_once_t __gthread_once_t; @@ -52,12 +53,12 @@ typedef pthread_mutex_t __gthread_mutex_t; #pragma weak pthread_setspecific #pragma weak pthread_create -#pragma weak pthread_mutex_lock -#pragma weak pthread_mutex_trylock -#pragma weak pthread_mutex_unlock +#pragma weak pthread_mutex_lock +#pragma weak pthread_mutex_trylock +#pragma weak pthread_mutex_unlock #ifdef _LIBOBJC -/* Objective C. */ +/* Objective-C. */ #pragma weak pthread_cond_broadcast #pragma weak pthread_cond_destroy #pragma weak pthread_cond_init @@ -67,15 +68,21 @@ typedef pthread_mutex_t __gthread_mutex_t; #pragma weak pthread_mutex_init #pragma weak pthread_mutex_destroy #pragma weak pthread_self +/* These really should be protected by _POSIX_PRIORITY_SCHEDULING, but + we use them inside a _POSIX_THREAD_PRIORITY_SCHEDULING block. */ +#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING #pragma weak sched_get_priority_max #pragma weak sched_get_priority_min +#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ #pragma weak sched_yield #pragma weak pthread_attr_destroy #pragma weak pthread_attr_init #pragma weak pthread_attr_setdetachstate +#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING #pragma weak pthread_getschedparam #pragma weak pthread_setschedparam -#endif +#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ +#endif /* _LIBOBJC */ static inline int __gthread_active_p (void) @@ -114,21 +121,21 @@ static void *thread_local_storage = NULL; /* Initialize the threads subsystem. */ static inline int -__gthread_objc_init_thread_system(void) +__gthread_objc_init_thread_system (void) { if (__gthread_active_p ()) { /* Initialize the thread storage key */ - if (pthread_key_create(&_objc_thread_storage, NULL) == 0) - { - /* The normal default detach state for threads is - * PTHREAD_CREATE_JOINABLE which causes threads to not die - * when you think they should. */ - if (pthread_attr_init(&_objc_thread_attribs) == 0 - && pthread_attr_setdetachstate(&_objc_thread_attribs, - PTHREAD_CREATE_DETACHED) == 0) - return 0; - } + if (pthread_key_create (&_objc_thread_storage, NULL) == 0) + { + /* The normal default detach state for threads is + * PTHREAD_CREATE_JOINABLE which causes threads to not die + * when you think they should. */ + if (pthread_attr_init (&_objc_thread_attribs) == 0 + && pthread_attr_setdetachstate (&_objc_thread_attribs, + PTHREAD_CREATE_DETACHED) == 0) + return 0; + } } return -1; @@ -136,11 +143,11 @@ __gthread_objc_init_thread_system(void) /* Close the threads subsystem. */ static inline int -__gthread_objc_close_thread_system(void) +__gthread_objc_close_thread_system (void) { if (__gthread_active_p () - && pthread_key_delete(_objc_thread_storage) == 0 - && pthread_attr_destroy(&_objc_thread_attribs) == 0) + && pthread_key_delete (_objc_thread_storage) == 0 + && pthread_attr_destroy (&_objc_thread_attribs) == 0) return 0; return -1; @@ -150,93 +157,98 @@ __gthread_objc_close_thread_system(void) /* Create a new thread of execution. */ static inline objc_thread_t -__gthread_objc_thread_detach(void (*func)(void *), void *arg) +__gthread_objc_thread_detach (void (*func)(void *), void *arg) { objc_thread_t thread_id; pthread_t new_thread_handle; if (!__gthread_active_p ()) return NULL; - - if ( !(pthread_create(&new_thread_handle, NULL, (void *)func, arg)) ) + + if (!(pthread_create (&new_thread_handle, NULL, (void *) func, arg))) thread_id = (objc_thread_t) new_thread_handle; else thread_id = NULL; - + return thread_id; } /* Set the current thread's priority. */ static inline int -__gthread_objc_thread_set_priority(int priority) +__gthread_objc_thread_set_priority (int priority) { - if (!__gthread_active_p()) - return -1; - else { - pthread_t thread_id = pthread_self(); - int policy; - struct sched_param params; - int priority_min, priority_max; - - if (pthread_getschedparam(thread_id, &policy, ¶ms) == 0) - { - if ((priority_max = sched_get_priority_max(policy)) != 0) - return -1; - - if ((priority_min = sched_get_priority_min(policy)) != 0) - return -1; - - if (priority > priority_max) - priority = priority_max; - else if (priority < priority_min) - priority = priority_min; - params.sched_priority = priority; - - /* - * The solaris 7 and several other man pages incorrectly state that - * this should be a pointer to policy but pthread.h is universally - * at odds with this. - */ - if (pthread_setschedparam(thread_id, policy, ¶ms) == 0) - return 0; - } + if (!__gthread_active_p ()) return -1; - } + else + { +#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING + pthread_t thread_id = pthread_self (); + int policy; + struct sched_param params; + int priority_min, priority_max; + + if (pthread_getschedparam (thread_id, &policy, ¶ms) == 0) + { + if ((priority_max = sched_get_priority_max (policy)) == -1) + return -1; + + if ((priority_min = sched_get_priority_min (policy)) == -1) + return -1; + + if (priority > priority_max) + priority = priority_max; + else if (priority < priority_min) + priority = priority_min; + params.sched_priority = priority; + + /* + * The solaris 7 and several other man pages incorrectly state that + * this should be a pointer to policy but pthread.h is universally + * at odds with this. + */ + if (pthread_setschedparam (thread_id, policy, ¶ms) == 0) + return 0; + } +#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ + return -1; + } } /* Return the current thread's priority. */ static inline int -__gthread_objc_thread_get_priority(void) +__gthread_objc_thread_get_priority (void) { +#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING if (__gthread_active_p ()) { int policy; struct sched_param params; - if (pthread_getschedparam(pthread_self(), &policy, ¶ms) == 0) - return params.sched_priority; + if (pthread_getschedparam (pthread_self (), &policy, ¶ms) == 0) + return params.sched_priority; else - return -1; + return -1; } else +#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ return OBJC_THREAD_INTERACTIVE_PRIORITY; } /* Yield our process time to another thread. */ static inline void -__gthread_objc_thread_yield(void) +__gthread_objc_thread_yield (void) { if (__gthread_active_p ()) - sched_yield(); + sched_yield (); } /* Terminate the current thread. */ static inline int -__gthread_objc_thread_exit(void) +__gthread_objc_thread_exit (void) { if (__gthread_active_p ()) /* exit the thread */ - pthread_exit(&__objc_thread_exit_status); + pthread_exit (&__objc_thread_exit_status); /* Failed if we reached here */ return -1; @@ -244,20 +256,20 @@ __gthread_objc_thread_exit(void) /* Returns an integer value which uniquely describes a thread. */ static inline objc_thread_t -__gthread_objc_thread_id(void) +__gthread_objc_thread_id (void) { if (__gthread_active_p ()) - return (objc_thread_t) pthread_self(); + return (objc_thread_t) pthread_self (); else return (objc_thread_t) 1; } /* Sets the thread's local storage pointer. */ static inline int -__gthread_objc_thread_set_data(void *value) +__gthread_objc_thread_set_data (void *value) { if (__gthread_active_p ()) - return pthread_setspecific(_objc_thread_storage, value); + return pthread_setspecific (_objc_thread_storage, value); else { thread_local_storage = value; @@ -267,10 +279,10 @@ __gthread_objc_thread_set_data(void *value) /* Returns the thread's local storage pointer. */ static inline void * -__gthread_objc_thread_get_data(void) +__gthread_objc_thread_get_data (void) { if (__gthread_active_p ()) - return pthread_getspecific(_objc_thread_storage); + return pthread_getspecific (_objc_thread_storage); else return thread_local_storage; } @@ -279,15 +291,15 @@ __gthread_objc_thread_get_data(void) /* Allocate a mutex. */ static inline int -__gthread_objc_mutex_allocate(objc_mutex_t mutex) +__gthread_objc_mutex_allocate (objc_mutex_t mutex) { if (__gthread_active_p ()) { - mutex->backend = objc_malloc(sizeof(pthread_mutex_t)); + mutex->backend = objc_malloc (sizeof (pthread_mutex_t)); - if (pthread_mutex_init((pthread_mutex_t *)mutex->backend, NULL)) + if (pthread_mutex_init ((pthread_mutex_t *) mutex->backend, NULL)) { - objc_free(mutex->backend); + objc_free (mutex->backend); mutex->backend = NULL; return -1; } @@ -298,7 +310,7 @@ __gthread_objc_mutex_allocate(objc_mutex_t mutex) /* Deallocate a mutex. */ static inline int -__gthread_objc_mutex_deallocate(objc_mutex_t mutex) +__gthread_objc_mutex_deallocate (objc_mutex_t mutex) { if (__gthread_active_p ()) { @@ -311,16 +323,16 @@ __gthread_objc_mutex_deallocate(objc_mutex_t mutex) do { - count = pthread_mutex_unlock((pthread_mutex_t *)mutex->backend); + count = pthread_mutex_unlock ((pthread_mutex_t *) mutex->backend); if (count < 0) return -1; } while (count); - if (pthread_mutex_destroy((pthread_mutex_t *)mutex->backend)) + if (pthread_mutex_destroy ((pthread_mutex_t *) mutex->backend)) return -1; - objc_free(mutex->backend); + objc_free (mutex->backend); mutex->backend = NULL; } return 0; @@ -328,10 +340,10 @@ __gthread_objc_mutex_deallocate(objc_mutex_t mutex) /* Grab a lock on a mutex. */ static inline int -__gthread_objc_mutex_lock(objc_mutex_t mutex) +__gthread_objc_mutex_lock (objc_mutex_t mutex) { - if (__gthread_active_p () - && pthread_mutex_lock((pthread_mutex_t *)mutex->backend) != 0) + if (__gthread_active_p () + && pthread_mutex_lock ((pthread_mutex_t *) mutex->backend) != 0) { return -1; } @@ -341,10 +353,10 @@ __gthread_objc_mutex_lock(objc_mutex_t mutex) /* Try to grab a lock on a mutex. */ static inline int -__gthread_objc_mutex_trylock(objc_mutex_t mutex) +__gthread_objc_mutex_trylock (objc_mutex_t mutex) { - if (__gthread_active_p () - && pthread_mutex_trylock((pthread_mutex_t *)mutex->backend) != 0) + if (__gthread_active_p () + && pthread_mutex_trylock ((pthread_mutex_t *) mutex->backend) != 0) { return -1; } @@ -354,10 +366,10 @@ __gthread_objc_mutex_trylock(objc_mutex_t mutex) /* Unlock the mutex */ static inline int -__gthread_objc_mutex_unlock(objc_mutex_t mutex) +__gthread_objc_mutex_unlock (objc_mutex_t mutex) { - if (__gthread_active_p () - && pthread_mutex_unlock((pthread_mutex_t *)mutex->backend) != 0) + if (__gthread_active_p () + && pthread_mutex_unlock ((pthread_mutex_t *) mutex->backend) != 0) { return -1; } @@ -369,15 +381,15 @@ __gthread_objc_mutex_unlock(objc_mutex_t mutex) /* Allocate a condition. */ static inline int -__gthread_objc_condition_allocate(objc_condition_t condition) +__gthread_objc_condition_allocate (objc_condition_t condition) { if (__gthread_active_p ()) { - condition->backend = objc_malloc(sizeof(pthread_cond_t)); + condition->backend = objc_malloc (sizeof (pthread_cond_t)); - if (pthread_cond_init((pthread_cond_t *)condition->backend, NULL)) + if (pthread_cond_init ((pthread_cond_t *) condition->backend, NULL)) { - objc_free(condition->backend); + objc_free (condition->backend); condition->backend = NULL; return -1; } @@ -388,14 +400,14 @@ __gthread_objc_condition_allocate(objc_condition_t condition) /* Deallocate a condition. */ static inline int -__gthread_objc_condition_deallocate(objc_condition_t condition) +__gthread_objc_condition_deallocate (objc_condition_t condition) { if (__gthread_active_p ()) { - if (pthread_cond_destroy((pthread_cond_t *)condition->backend)) + if (pthread_cond_destroy ((pthread_cond_t *) condition->backend)) return -1; - objc_free(condition->backend); + objc_free (condition->backend); condition->backend = NULL; } return 0; @@ -403,31 +415,31 @@ __gthread_objc_condition_deallocate(objc_condition_t condition) /* Wait on the condition */ static inline int -__gthread_objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) +__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) { if (__gthread_active_p ()) - return pthread_cond_wait((pthread_cond_t *)condition->backend, - (pthread_mutex_t *)mutex->backend); + return pthread_cond_wait ((pthread_cond_t *) condition->backend, + (pthread_mutex_t *) mutex->backend); else return 0; } /* Wake up all threads waiting on this condition. */ static inline int -__gthread_objc_condition_broadcast(objc_condition_t condition) +__gthread_objc_condition_broadcast (objc_condition_t condition) { if (__gthread_active_p ()) - return pthread_cond_broadcast((pthread_cond_t *)condition->backend); + return pthread_cond_broadcast ((pthread_cond_t *) condition->backend); else return 0; } /* Wake up one thread waiting on this condition. */ static inline int -__gthread_objc_condition_signal(objc_condition_t condition) +__gthread_objc_condition_signal (objc_condition_t condition) { if (__gthread_active_p ()) - return pthread_cond_signal((pthread_cond_t *)condition->backend); + return pthread_cond_signal ((pthread_cond_t *) condition->backend); else return 0; } |
