#include <unistd.h>
#include <sched.h>
#include <errno.h>
#include <pthread.h>
#include "thread_internal.h"
/* will never return EINVAL ! */
static int __thread_mutex_lock(pthread_mutex_t*mutex,_pthread_descr this) {
if (mutex->owner!=this) {
/* wait for mutex to free */
LOCK(mutex);
mutex->owner=this;
mutex->count=0;
}
else if (mutex->kind==PTHREAD_MUTEX_ERRORCHECK_NP) return EDEADLK;
if (mutex->kind==PTHREAD_MUTEX_RECURSIVE_NP) ++(mutex->count);
return 0;
}
int __pthread_mutex_lock(pthread_mutex_t*mutex,_pthread_descr this)
__attribute__((alias("__thread_mutex_lock")));
int pthread_mutex_lock(pthread_mutex_t*mutex) {
return __thread_mutex_lock(mutex,__thread_self());
}
LinuxTV legacy CVS <linuxtv.org/cvs>