delete cv;
}
+void ModelAction::copy_from_new(ModelAction *newaction) {
+ seq_number=newaction->seq_number;
+}
+
+bool ModelAction::is_mutex_op() const {
+ return type == ATOMIC_LOCK || type == ATOMIC_TRYLOCK || type == ATOMIC_UNLOCK;
+}
+
+bool ModelAction::is_lock() const {
+ return type == ATOMIC_LOCK;
+}
+
+bool ModelAction::is_unlock() const {
+ return type == ATOMIC_UNLOCK;
+}
+
+bool ModelAction::is_trylock() const {
+ return type == ATOMIC_TRYLOCK;
+}
+
bool ModelAction::is_success_lock() const {
return type == ATOMIC_LOCK || (type == ATOMIC_TRYLOCK && value == VALUE_TRYSUCCESS);
}
return false;
}
+bool ModelAction::is_conflicting_lock(const ModelAction *act) const
+{
+ //Must be different threads to reorder
+ if (same_thread(act))
+ return false;
+
+ //Try to reorder a lock past a successful lock
+ if (act->is_success_lock())
+ return true;
+
+ //Try to push a successful trylock past an unlock
+ if (act->is_unlock() && is_trylock() && value == VALUE_TRYSUCCESS)
+ return true;
+
+ return false;
+}
+
void ModelAction::create_cv(const ModelAction *parent)
{
if (cv)
cv = new ClockVector(NULL, this);
}
+void ModelAction::set_try_lock(bool obtainedlock) {
+ if (obtainedlock)
+ value=VALUE_TRYSUCCESS;
+ else
+ value=VALUE_TRYFAILED;
+}
+
/** Update the model action's read_from action */
void ModelAction::read_from(const ModelAction *act)
{
ASSERT(cv);
reads_from = act;
if (act != NULL && this->is_acquire()) {
- std::vector< const ModelAction *, MyAlloc<const ModelAction *> > release_heads;
+ rel_heads_list_t release_heads;
model->get_release_seq_heads(this, &release_heads);
for (unsigned int i = 0; i < release_heads.size(); i++)
synchronize_with(release_heads[i]);
* @param act The ModelAction to synchronize with
*/
void ModelAction::synchronize_with(const ModelAction *act) {
- ASSERT(*act < *this);
+ ASSERT(*act < *this || type == THREAD_JOIN || type == ATOMIC_LOCK );
model->check_promises(cv, act->cv);
cv->merge(act->cv);
}
case ATOMIC_INIT:
type_str = "init atomic";
break;
+ case ATOMIC_LOCK:
+ type_str = "lock";
+ break;
+ case ATOMIC_UNLOCK:
+ type_str = "unlock";
+ break;
+ case ATOMIC_TRYLOCK:
+ type_str = "trylock";
+ break;
default:
type_str = "unknown type";
}