diff options
| -rw-r--r-- | doc/multi-threaded.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/doc/multi-threaded.c b/doc/multi-threaded.c index a0a4ef50..68cd568d 100644 --- a/doc/multi-threaded.c +++ b/doc/multi-threaded.c @@ -116,7 +116,7 @@ void lock_mutex(void *user, int lock) { pthread_mutex_t *mutex = (pthread_mutex_t *) user; - if (pthread_mutex_lock(&mutex[lock]) < 0) + if (pthread_mutex_lock(&mutex[lock]) != 0) fail("pthread_mutex_lock()"); } @@ -124,7 +124,7 @@ void unlock_mutex(void *user, int lock) { pthread_mutex_t *mutex = (pthread_mutex_t *) user; - if (pthread_mutex_unlock(&mutex[lock]) < 0) + if (pthread_mutex_unlock(&mutex[lock]) != 0) fail("pthread_mutex_unlock()"); } @@ -140,7 +140,7 @@ int main(int argc, char **argv) for (i = 0; i < FZ_LOCK_MAX; i++) { - if (pthread_mutex_init(&mutex[i], NULL) < 0) + if (pthread_mutex_init(&mutex[i], NULL) != 0) fail("pthread_mutex_init()"); } @@ -219,7 +219,7 @@ int main(int argc, char **argv) // Create the thread and pass it the data structure. - if (pthread_create(&thread[i], NULL, renderer, data) < 0) + if (pthread_create(&thread[i], NULL, renderer, data) != 0) fail("pthread_create()"); } @@ -232,7 +232,7 @@ int main(int argc, char **argv) char filename[42]; struct data *data; - if (pthread_join(thread[i], (void **) &data) < 0) + if (pthread_join(thread[i], (void **) &data) != 0) fail("pthread_join"); sprintf(filename, "out%04d.png", i); |