#ifdef HAVE_FUTEX_H
#include <linux/futex.h>
+#include <limits.h>
#endif
#include "xbt/parmap.h"
{
xbt_os_mutex_acquire(parmap->ready_mutex);
/* wait for more work */
- if (parmap->work < round) {
+ if (parmap->work != round) {
xbt_os_cond_wait(parmap->ready_cond, parmap->ready_mutex);
}
xbt_os_mutex_release(parmap->ready_mutex);
unsigned count = __sync_add_and_fetch(&parmap->thread_counter, 1);
if (count == parmap->num_workers) {
/* all workers have finished, wake the controller */
- futex_wake(&parmap->thread_counter, 1);
+ futex_wake(&parmap->thread_counter, INT_MAX);
}
}
parmap->thread_counter = 1;
__sync_add_and_fetch(&parmap->work, 1);
/* wake all workers */
- futex_wake(&parmap->work, parmap->num_workers - 1);
+ futex_wake(&parmap->work, INT_MAX);
}
/**
{
unsigned work = parmap->work;
/* wait for more work */
- if (work < round)
+ while (work != round) {
futex_wait(&parmap->work, work);
+ work = parmap->work;
+ }
}
#endif
static void xbt_parmap_busy_worker_wait(xbt_parmap_t parmap, unsigned round)
{
/* wait for more work */
- while (parmap->work < round) {
+ while (parmap->work != round) {
xbt_os_thread_yield();
}
}