Fix bug in fio mutex initialization

[fio.git] / mutex.c

diff --git a/mutex.c b/mutex.c
index be3258df8347937a47bf68a99402283d2381b51a..17e62c9f5152c0ab29966915b8874a4a1592ce45 100644 (file)
--- a/mutex.c
+++ b/mutex.c
@@ -19,6 +19,7 @@ struct fio_sem *fio_sem_init(int value)
        char sem_name[] = "/tmp/.fio_sem.XXXXXX";
        struct fio_sem *sem = NULL;
        pthread_mutexattr_t attr;
+       pthread_condattr_t cond;
        int fd;
 
        fd = mkstemp(sem_name);
@@ -53,6 +54,11 @@ struct fio_sem *fio_sem_init(int value)
                perror("pthread_mutexattr_setpshared");
                goto err;
        }
+
+       pthread_condattr_init(&cond);
+       pthread_condattr_setpshared(&cond, PTHREAD_PROCESS_SHARED);
+       pthread_cond_init(&sem->cond, &cond);
+
        if (pthread_mutex_init(&sem->lock, &attr)) {
                perror("pthread_mutex_init");
                goto err;