state.locked = NULL;
thread_id_t tid = thread_current()->get_id();
state.alloc_tid = tid;
- state.alloc_clock = model->get_execution()->get_cv(tid)->getClock(tid);
+ ClockVector *cv = model->get_execution()->get_cv(tid);
+ state.alloc_clock = cv == NULL ? 0 : cv->getClock(tid);
}
-
+
void mutex::lock()
{
model->switch_to_master(new ModelAction(ATOMIC_LOCK, std::memory_order_seq_cst, this));
}
-
+
bool mutex::try_lock()
{
return model->switch_to_master(new ModelAction(ATOMIC_TRYLOCK, std::memory_order_seq_cst, this));