diff options
Diffstat (limited to 'libpthread/linuxthreads/mutex.c')
| -rw-r--r-- | libpthread/linuxthreads/mutex.c | 57 |
1 files changed, 31 insertions, 26 deletions
diff --git a/libpthread/linuxthreads/mutex.c b/libpthread/linuxthreads/mutex.c index 3c97ea7d6..890841452 100644 --- a/libpthread/linuxthreads/mutex.c +++ b/libpthread/linuxthreads/mutex.c @@ -14,7 +14,6 @@ /* Mutexes */ -#include <bits/libc-lock.h> #include <errno.h> #include <sched.h> #include <stddef.h> @@ -25,7 +24,7 @@ #include "queue.h" #include "restart.h" -int __pthread_mutex_init(pthread_mutex_t * mutex, +int attribute_hidden __pthread_mutex_init(pthread_mutex_t * mutex, const pthread_mutexattr_t * mutex_attr) { __pthread_init_lock(&mutex->__m_lock); @@ -37,7 +36,7 @@ int __pthread_mutex_init(pthread_mutex_t * mutex, } strong_alias (__pthread_mutex_init, pthread_mutex_init) -int __pthread_mutex_destroy(pthread_mutex_t * mutex) +int attribute_hidden __pthread_mutex_destroy(pthread_mutex_t * mutex) { switch (mutex->__m_kind) { case PTHREAD_MUTEX_ADAPTIVE_NP: @@ -56,7 +55,7 @@ int __pthread_mutex_destroy(pthread_mutex_t * mutex) } strong_alias (__pthread_mutex_destroy, pthread_mutex_destroy) -int __pthread_mutex_trylock(pthread_mutex_t * mutex) +int attribute_hidden __pthread_mutex_trylock(pthread_mutex_t * mutex) { pthread_descr self; int retcode; @@ -92,7 +91,7 @@ int __pthread_mutex_trylock(pthread_mutex_t * mutex) } strong_alias (__pthread_mutex_trylock, pthread_mutex_trylock) -int __pthread_mutex_lock(pthread_mutex_t * mutex) +int attribute_hidden __pthread_mutex_lock(pthread_mutex_t * mutex) { pthread_descr self; @@ -125,7 +124,7 @@ int __pthread_mutex_lock(pthread_mutex_t * mutex) } strong_alias (__pthread_mutex_lock, pthread_mutex_lock) -int __pthread_mutex_timedlock (pthread_mutex_t *mutex, +int pthread_mutex_timedlock (pthread_mutex_t *mutex, const struct timespec *abstime) { pthread_descr self; @@ -167,9 +166,8 @@ int __pthread_mutex_timedlock (pthread_mutex_t *mutex, return EINVAL; } } -strong_alias (__pthread_mutex_timedlock, pthread_mutex_timedlock) -int __pthread_mutex_unlock(pthread_mutex_t * mutex) +int attribute_hidden __pthread_mutex_unlock(pthread_mutex_t * mutex) { switch (mutex->__m_kind) { case PTHREAD_MUTEX_ADAPTIVE_NP: @@ -200,20 +198,20 @@ int __pthread_mutex_unlock(pthread_mutex_t * mutex) } strong_alias (__pthread_mutex_unlock, pthread_mutex_unlock) -int __pthread_mutexattr_init(pthread_mutexattr_t *attr) +int attribute_hidden __pthread_mutexattr_init(pthread_mutexattr_t *attr) { attr->__mutexkind = PTHREAD_MUTEX_TIMED_NP; return 0; } -strong_alias (__pthread_mutexattr_init, pthread_mutexattr_init) +strong_alias(__pthread_mutexattr_init,pthread_mutexattr_init) -int __pthread_mutexattr_destroy(pthread_mutexattr_t *attr) +int attribute_hidden __pthread_mutexattr_destroy(pthread_mutexattr_t *attr attribute_unused) { return 0; } -strong_alias (__pthread_mutexattr_destroy, pthread_mutexattr_destroy) +strong_alias(__pthread_mutexattr_destroy,pthread_mutexattr_destroy) -int __pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind) +int attribute_hidden __pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind) { if (kind != PTHREAD_MUTEX_ADAPTIVE_NP && kind != PTHREAD_MUTEX_RECURSIVE_NP @@ -223,10 +221,11 @@ int __pthread_mutexattr_settype(pthread_mutexattr_t *attr, int kind) attr->__mutexkind = kind; return 0; } -weak_alias (__pthread_mutexattr_settype, pthread_mutexattr_settype) -strong_alias ( __pthread_mutexattr_settype, __pthread_mutexattr_setkind_np) +strong_alias(__pthread_mutexattr_settype,pthread_mutexattr_settype) +strong_alias (__pthread_mutexattr_settype, __pthread_mutexattr_setkind_np) weak_alias (__pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np) +int __pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *kind) attribute_hidden; int __pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *kind) { *kind = attr->__mutexkind; @@ -236,7 +235,9 @@ weak_alias (__pthread_mutexattr_gettype, pthread_mutexattr_gettype) strong_alias (__pthread_mutexattr_gettype, __pthread_mutexattr_getkind_np) weak_alias (__pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np) -int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *attr, +int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *attr attribute_unused, + int *pshared) attribute_hidden; +int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *attr attribute_unused, int *pshared) { *pshared = PTHREAD_PROCESS_PRIVATE; @@ -244,7 +245,8 @@ int __pthread_mutexattr_getpshared (const pthread_mutexattr_t *attr, } weak_alias (__pthread_mutexattr_getpshared, pthread_mutexattr_getpshared) -int __pthread_mutexattr_setpshared (pthread_mutexattr_t *attr, int pshared) +int __pthread_mutexattr_setpshared (pthread_mutexattr_t *attr attribute_unused, int pshared) attribute_hidden; +int __pthread_mutexattr_setpshared (pthread_mutexattr_t *attr attribute_unused, int pshared) { if (pshared != PTHREAD_PROCESS_PRIVATE && pshared != PTHREAD_PROCESS_SHARED) return EINVAL; @@ -273,9 +275,9 @@ static void pthread_once_cancelhandler(void *arg) { pthread_once_t *once_control = arg; - pthread_mutex_lock(&once_masterlock); + __pthread_mutex_lock(&once_masterlock); *once_control = NEVER; - pthread_mutex_unlock(&once_masterlock); + __pthread_mutex_unlock(&once_masterlock); pthread_cond_broadcast(&once_finished); } @@ -293,7 +295,7 @@ int __pthread_once(pthread_once_t * once_control, void (*init_routine)(void)) state_changed = 0; - pthread_mutex_lock(&once_masterlock); + __pthread_mutex_lock(&once_masterlock); /* If this object was left in an IN_PROGRESS state in a parent process (indicated by stale generation field), reset it to NEVER. */ @@ -308,16 +310,16 @@ int __pthread_once(pthread_once_t * once_control, void (*init_routine)(void)) /* Here *once_control is stable and either NEVER or DONE. */ if (*once_control == NEVER) { *once_control = IN_PROGRESS | fork_generation; - pthread_mutex_unlock(&once_masterlock); + __pthread_mutex_unlock(&once_masterlock); pthread_cleanup_push(pthread_once_cancelhandler, once_control); init_routine(); pthread_cleanup_pop(0); - pthread_mutex_lock(&once_masterlock); + __pthread_mutex_lock(&once_masterlock); WRITE_MEMORY_BARRIER(); *once_control = DONE; state_changed = 1; } - pthread_mutex_unlock(&once_masterlock); + __pthread_mutex_unlock(&once_masterlock); if (state_changed) pthread_cond_broadcast(&once_finished); @@ -336,19 +338,22 @@ strong_alias (__pthread_once, pthread_once) * and reset them back to NEVER. */ +void __pthread_once_fork_prepare(void); void __pthread_once_fork_prepare(void) { - pthread_mutex_lock(&once_masterlock); + __pthread_mutex_lock(&once_masterlock); } +void __pthread_once_fork_parent(void); void __pthread_once_fork_parent(void) { - pthread_mutex_unlock(&once_masterlock); + __pthread_mutex_unlock(&once_masterlock); } +void __pthread_once_fork_child(void); void __pthread_once_fork_child(void) { - pthread_mutex_init(&once_masterlock, NULL); + __pthread_mutex_init(&once_masterlock, NULL); pthread_cond_init(&once_finished, NULL); if (fork_generation <= INT_MAX - 4) fork_generation += 4; /* leave least significant two bits zero */ |