may_read_from(),
read_from_index(0),
future_values(),
- future_index(0)
+ future_index(-1)
{
if (act)
act->set_node(this);
(*it)->print();
}
+void Node::set_promise(uint32_t i) {
+ if (i>=promises.size())
+ promises.resize(i+1,0);
+ promises[i]=1;
+}
+
+bool Node::get_promise(uint32_t i) {
+ return (promises[i]==2);
+}
+
+bool Node::increment_promise() {
+ for (unsigned int i=0;i<promises.size();i++) {
+ if (promises[i]==1) {
+ promises[i]=2;
+ while (i>0) {
+ i--;
+ if (promises[i]==2)
+ promises[i]=1;
+ }
+ return true;
+ }
+ }
+ return false;
+}
+
+bool Node::promise_empty() {
+ for (unsigned int i=0;i<promises.size();i++)
+ if (promises[i]==1)
+ return false;
+ return true;
+}
+
/**
* 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(int i=0;i<future_values.size();i++)
+ for(unsigned int i=0;i<future_values.size();i++)
if (future_values[i]==value)
return false;
+
future_values.push_back(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::future_value_empty() {
+ return ((future_index+1)>=future_values.size());
+}
+
/**
* Checks if the Thread associated with this thread ID has been explored from
* 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());
}
-/**
- * Checks whether the future_values set for this node is empty.
- * @return true if the future_values set is empty.
- */
-bool Node::futurevalues_empty() {
- return ((future_index+1)>=future_values.size());
-}
/**
* Mark the appropriate backtracking information for exploring a thread choice.
* @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());
}