mm_event_dispatch_advance_epoch(struct mm_event_dispatch *dispatch)
{
ENTER();
uint32_t epoch = mm_memory_load(dispatch->reclaim_epoch);
bool rc = mm_event_dispatch_check_epoch(dispatch, epoch);
if (rc) {
mm_memory_fence(); // TODO: load_store fence
mm_memory_store(dispatch->reclaim_epoch, epoch + 1);
DEBUG("advance epoch %u", epoch + 1);
}
LEAVE();
return rc;
}
mm_thread_barrier_wait(struct mm_thread_barrier *const barrier, struct mm_thread_barrier_local *local)
{
uint32_t sense = ~local->sense;
if (mm_atomic_uint32_dec_and_test(&barrier->value) == 0) {
mm_memory_store(barrier->value, barrier->count);
mm_memory_store_fence();
mm_memory_store(barrier->sense, sense);
} else {
mm_memory_fence(); // TODO: atomic_load fence
while (mm_memory_load(barrier->sense) != sense)
mm_cpu_backoff();
}
local->sense = sense;
}