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This commit is contained in:
Ulrich Drepper 2000-03-16 21:42:07 +00:00
parent 8654617791
commit ee5cda9b43
2 changed files with 6 additions and 14 deletions
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6
linuxthreads/ChangeLog
View File

@ -1,9 +1,3 @@
2000-03-16 Ulrich Drepper <drepper@redhat.com>
* mutex.c (__pthread_mutex_lock): Always initialize __m_owner.
(__pthread_mutex_trylock): Likewise.
(__pthread_mutex_unlock): Always clear __m_owner.
2000-03-14 Ulrich Drepper <drepper@redhat.com>
* condvar.c (pthread_cond_wait): Check whether mutex is owned by

14
linuxthreads/mutex.c
View File

@ -50,7 +50,6 @@ int __pthread_mutex_trylock(pthread_mutex_t * mutex)
switch(mutex->__m_kind) {
case PTHREAD_MUTEX_FAST_NP:
retcode = __pthread_trylock(&mutex->__m_lock);
mutex->__m_owner = thread_self();
return retcode;
case PTHREAD_MUTEX_RECURSIVE_NP:
self = thread_self();
@ -78,12 +77,12 @@ strong_alias (__pthread_mutex_trylock, pthread_mutex_trylock)
int __pthread_mutex_lock(pthread_mutex_t * mutex)
{
pthread_descr self = thread_self();
pthread_descr self;
switch(mutex->__m_kind) {
case PTHREAD_MUTEX_FAST_NP:
__pthread_lock(&mutex->__m_lock, NULL);
break;
return 0;
case PTHREAD_MUTEX_RECURSIVE_NP:
self = thread_self();
if (mutex->__m_owner == self) {
@ -91,18 +90,18 @@ int __pthread_mutex_lock(pthread_mutex_t * mutex)
return 0;
}
__pthread_lock(&mutex->__m_lock, self);
mutex->__m_owner = self;
mutex->__m_count = 0;
break;
return 0;
case PTHREAD_MUTEX_ERRORCHECK_NP:
self = thread_self();
if (mutex->__m_owner == self) return EDEADLK;
__pthread_lock(&mutex->__m_lock, self);
break;
mutex->__m_owner = self;
return 0;
default:
return EINVAL;
}
mutex->__m_owner = self;
return 0;
}
strong_alias (__pthread_mutex_lock, pthread_mutex_lock)
@ -111,7 +110,6 @@ int __pthread_mutex_unlock(pthread_mutex_t * mutex)
switch (mutex->__m_kind) {
case PTHREAD_MUTEX_FAST_NP:
__pthread_unlock(&mutex->__m_lock);
mutex->__m_owner = NULL;
return 0;
case PTHREAD_MUTEX_RECURSIVE_NP:
if (mutex->__m_count > 0) {