diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libpthread/pthread_mutex_lock.c')
-rw-r--r-- | mdk-stage1/dietlibc/libpthread/pthread_mutex_lock.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/mdk-stage1/dietlibc/libpthread/pthread_mutex_lock.c b/mdk-stage1/dietlibc/libpthread/pthread_mutex_lock.c index 0c3ade9e8..0df2bcd8d 100644 --- a/mdk-stage1/dietlibc/libpthread/pthread_mutex_lock.c +++ b/mdk-stage1/dietlibc/libpthread/pthread_mutex_lock.c @@ -15,19 +15,18 @@ int pthread_mutex_lock(pthread_mutex_t *mutex) this = __thread_self(); - if (this!=mutex->owner) { - /* wait for mutex to free */ - __pthread_lock(&(mutex->lock)); - - mutex->owner=this; - } - else if (mutex->kind==PTHREAD_MUTEX_ERRORCHECK_NP) - { - (*(__errno_location()))=EDEADLK; - return -1; + if (this==mutex->owner) { + if (mutex->kind==PTHREAD_MUTEX_ERRORCHECK_NP) + return EDEADLK; + if (mutex->kind==PTHREAD_MUTEX_RECURSIVE_NP) { + ++(mutex->count); + return 0; + } } - if (mutex->kind==PTHREAD_MUTEX_RECURSIVE_NP) ++(mutex->count); + /* wait for mutex to free */ + __pthread_lock(&(mutex->lock)); + mutex->owner=this; return 0; } |