#include "clockvector.h"
#include "common.h"
+#define ACTION_INITIAL_CLOCK 0
+
ModelAction::ModelAction(action_type_t type, memory_order order, void *loc, uint64_t value) :
type(type),
order(order),
location(loc),
value(value),
reads_from(NULL),
+ seq_number(ACTION_INITIAL_CLOCK),
cv(NULL)
{
Thread *t = thread_current();
this->tid = t->get_id();
- this->seq_number = model->get_next_seq_num();
}
+/** @brief ModelAction destructor */
ModelAction::~ModelAction()
{
- if (cv)
- delete cv;
+ /**
+ * We can't free the clock vector:
+ * Clock vectors are snapshotting state. When we delete model actions,
+ * they are at the end of the node list and have invalid old clock
+ * vectors which have already been rolled back to an unallocated state.
+ */
+
+ /*
+ if (cv)
+ delete cv; */
}
void ModelAction::copy_from_new(ModelAction *newaction)
seq_number = newaction->seq_number;
}
+void ModelAction::set_seq_number(modelclock_t num)
+{
+ ASSERT(seq_number == ACTION_INITIAL_CLOCK);
+ seq_number = num;
+}
+
bool ModelAction::is_mutex_op() const
{
return type == ATOMIC_LOCK || type == ATOMIC_TRYLOCK || type == ATOMIC_UNLOCK;