[PATCH] Easy process shared semaphores
[fio.git] / fio.c
diff --git a/fio.c b/fio.c
index 09c960f..ccf0ad8 100644 (file)
--- a/fio.c
+++ b/fio.c
@@ -63,7 +63,7 @@ enum {
 
 #define should_fsync(td)       ((td_write(td) || td_rw(td)) && (!(td)->odirect || (td)->override_sync))
 
-static sem_t startup_sem;
+static volatile int startup_sem;
 
 #define TERMINATE_ALL          (-1)
 #define JOB_START_TIMEOUT      (5 * 1000)
@@ -1336,8 +1336,8 @@ static void *thread_main(void *data)
                goto err;
 
        td_set_runstate(td, TD_INITIALIZED);
-       sem_post(&startup_sem);
-       sem_wait(&td->mutex);
+       fio_sem_up(&startup_sem);
+       fio_sem_down(&td->mutex);
 
        if (!td->create_serialize && setup_file(td))
                goto err;
@@ -1788,7 +1788,7 @@ static void run_threads(void)
                         */
                        td_set_runstate(td, TD_CREATED);
                        map[this_jobs++] = td;
-                       sem_init(&startup_sem, 0, 1);
+                       fio_sem_init(&startup_sem, 1);
                        nr_started++;
 
                        if (td->use_thread) {
@@ -1798,7 +1798,7 @@ static void run_threads(void)
                                }
                        } else {
                                if (fork())
-                                       sem_wait(&startup_sem);
+                                       fio_sem_down(&startup_sem);
                                else {
                                        fork_main(shm_id, i);
                                        exit(0);
@@ -1862,7 +1862,7 @@ static void run_threads(void)
                        m_rate += td->ratemin;
                        t_rate += td->rate;
                        todo--;
-                       sem_post(&td->mutex);
+                       fio_sem_up(&td->mutex);
                }
 
                reap_threads(&nr_running, &t_rate, &m_rate);