return (type == ATOMIC_TRYLOCK && value == VALUE_TRYFAILED);
}
+/** @return True if this operation is performed on a C/C++ atomic variable */
+bool ModelAction::is_atomic_var() const
+{
+ return is_read() || could_be_write();
+}
+
bool ModelAction::is_uninitialized() const
{
return type == ATOMIC_UNINIT;
*/
bool ModelAction::could_synchronize_with(const ModelAction *act) const
{
- //Same thread can't be reordered
+ // Same thread can't be reordered
if (same_thread(act))
return false;
(act->could_be_write() || act->is_fence()))
return true;
- //lock just released...we can grab lock
+ // lock just released...we can grab lock
if ((is_lock() ||is_trylock()) && (act->is_unlock()||act->is_wait()))
return true;
- //lock just acquired...we can fail to grab lock
+ // lock just acquired...we can fail to grab lock
if (is_trylock() && act->is_success_lock())
return true;
- //other thread stalling on lock...we can release lock
+ // other thread stalling on lock...we can release lock
if (is_unlock() && (act->is_trylock()||act->is_lock()))
return true;
bool ModelAction::is_conflicting_lock(const ModelAction *act) const
{
- //Must be different threads to reorder
+ // Must be different threads to reorder
if (same_thread(act))
return false;
- //Try to reorder a lock past a successful lock
+ // 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
+ // Try to push a successful trylock past an unlock
if (act->is_unlock() && is_trylock() && value == VALUE_TRYSUCCESS)
return true;
- //Try to push a successful trylock past a wait
+ // Try to push a successful trylock past a wait
if (act->is_wait() && is_trylock() && value == VALUE_TRYSUCCESS)
return true;
type_str = "unknown type";
}
- uint64_t valuetoprint=type==ATOMIC_READ?(reads_from!=NULL?reads_from->value:VALUE_NONE):value;
+ uint64_t valuetoprint;
+ if (type == ATOMIC_READ && reads_from != NULL)
+ valuetoprint = reads_from->value;
+ else
+ valuetoprint = value;
switch (this->order) {
case std::memory_order_relaxed: