(*it)->print();
}
+/**
+ * Sets a promise to explore meeting with the given node.
+ * @param i is the promise index.
+ */
void Node::set_promise(uint32_t i) {
if (i>=promises.size())
promises.resize(i+1,0);
promises[i]=1;
}
+/**
+ * Looks up whether a given promise should be satisfied by this node.
+ * @param i The promise index.
+ * @return true if the promise should be satisfied by the given model action.
+ */
bool Node::get_promise(uint32_t i) {
- return (promises[i]==2);
+ return (i<promises.size())&&(promises[i]==2);
}
-bool Node::increment_promises() {
+/**
+ * Increments to the next combination of promises.
+ * @return true if we have a valid combination.
+ */
+bool Node::increment_promise() {
for (unsigned int i=0;i<promises.size();i++) {
if (promises[i]==1) {
promises[i]=2;
return false;
}
-bool Node::promises_empty() {
+/**
+ * Returns whether the promise set is empty.
+ * @return true if we have explored all promise combinations.
+ */
+bool Node::promise_empty() {
for (unsigned int i=0;i<promises.size();i++)
if (promises[i]==1)
return false;
* Adds a value from a weakly ordered future write to backtrack to.
* @param value is the value to backtrack to.
*/
-
bool Node::add_future_value(uint64_t value) {
for(unsigned int i=0;i<future_values.size();i++)
if (future_values[i]==value)
return true;
}
-/**
+/**
* Checks whether the future_values set for this node is empty.
* @return true if the future_values set is empty.
*/
-
-bool Node::futurevalues_empty() {
+bool Node::future_value_empty() {
return ((future_index+1)>=future_values.size());
}
-
/**
* Checks if the Thread associated with this thread ID has been explored from
* this Node already.
return (numBacktracks == 0);
}
-
/**
* Checks whether the readsfrom set for this node is empty.
* @return true if the readsfrom set is empty.
*/
-bool Node::readsfrom_empty() {
+bool Node::read_from_empty() {
return ((read_from_index+1)>=may_read_from.size());
}
-
-
/**
* Mark the appropriate backtracking information for exploring a thread choice.
* @param act The ModelAction to explore
* where this->action is a 'read'.
* @return The first element in future_values
*/
-
uint64_t Node::get_future_value() {
ASSERT(future_index<future_values.size());
return future_values[future_index];
/**
* Gets the next 'may_read_from' action from this Node. Only valid for a node
* where this->action is a 'read'.
- * @todo Perform reads_from backtracking/replay properly, so that this function
- * may remove elements from may_read_from
* @return The first element in may_read_from
*/
const ModelAction * Node::get_read_from() {
* Increments the index into the future_values set to explore the next item.
* @return Returns false if we have explored all values.
*/
-
-bool Node::increment_future_values() {
+bool Node::increment_future_value() {
future_index++;
return (future_index<future_values.size());
}
}
static void clear_node_list(node_list_t *list, node_list_t::iterator start,
- node_list_t::iterator end)
+ node_list_t::iterator end)
{
node_list_t::iterator it;