+void CycleGraph::dumpNodes(FILE *file) const
+{
+ for (unsigned int i = 0;i < nodeList.size();i++) {
+ CycleNode *n = nodeList[i];
+ print_node(file, n, 1);
+ fprintf(file, ";\n");
+ if (n->getRMW())
+ print_edge(file, n, n->getRMW(), "style=dotted");
+ for (unsigned int j = 0;j < n->getNumEdges();j++)
+ print_edge(file, n, n->getEdge(j), NULL);
+ }
+}
+
+void CycleGraph::dumpGraphToFile(const char *filename) const
+{
+ char buffer[200];
+ sprintf(buffer, "%s.dot", filename);
+ FILE *file = fopen(buffer, "w");
+ fprintf(file, "digraph %s {\n", filename);
+ dumpNodes(file);
+ fprintf(file, "}\n");
+ fclose(file);
+}
+#endif
+
+/**
+ * Checks whether one CycleNode can reach another.
+ * @param from The CycleNode from which to begin exploration
+ * @param to The CycleNode to reach
+ * @return True, @a from can reach @a to; otherwise, false
+ */
+bool CycleGraph::checkReachable(const CycleNode *from, const CycleNode *to) const
+{
+ return to->cv->synchronized_since(from->action);
+}
+
+/**
+ * Checks whether one ModelAction can reach another ModelAction
+ * @param from The ModelAction from which to begin exploration
+ * @param to The ModelAction to reach
+ * @return True, @a from can reach @a to; otherwise, false
+ */
+bool CycleGraph::checkReachable(const ModelAction *from, const ModelAction *to) const
+{
+ CycleNode *fromnode = getNode_noCreate(from);
+ CycleNode *tonode = getNode_noCreate(to);
+
+ if (!fromnode || !tonode)
+ return false;
+
+ return checkReachable(fromnode, tonode);
+}
+
+void CycleGraph::freeAction(const ModelAction * act) {
+ CycleNode *cn = actionToNode.remove(act);
+ for(unsigned int i=0;i<cn->edges.size();i++) {
+ CycleNode *dst = cn->edges[i];
+ dst->removeInEdge(cn);
+ }
+ for(unsigned int i=0;i<cn->inedges.size();i++) {
+ CycleNode *src = cn->inedges[i];
+ src->removeEdge(cn);
+ }
+ delete cn;
+}
+
+/**
+ * @brief Constructor for a CycleNode
+ * @param act The ModelAction for this node
+ */
+CycleNode::CycleNode(ModelAction *act) :
+ action(act),
+ hasRMW(NULL),
+ cv(new ClockVector(NULL, act))
+{
+}
+
+CycleNode::~CycleNode() {
+ delete cv;
+}
+
+void CycleNode::removeInEdge(CycleNode *src) {
+ for(unsigned int i=0;i < inedges.size();i++) {
+ if (inedges[i] == src) {
+ inedges[i] = inedges[inedges.size()-1];
+ inedges.pop_back();
+ break;
+ }
+ }
+}
+
+void CycleNode::removeEdge(CycleNode *dst) {
+ for(unsigned int i=0;i < edges.size();i++) {
+ if (edges[i] == dst) {
+ edges[i] = edges[edges.size()-1];
+ edges.pop_back();
+ break;
+ }
+ }
+}
+
+/**
+ * @param i The index of the edge to return
+ * @returns The CycleNode edge indexed by i
+ */
+CycleNode * CycleNode::getEdge(unsigned int i) const
+{
+ return edges[i];
+}
+
+/** @returns The number of edges leaving this CycleNode */
+unsigned int CycleNode::getNumEdges() const
+{
+ return edges.size();
+}
+
+/**
+ * @param i The index of the edge to return
+ * @returns The CycleNode edge indexed by i
+ */
+CycleNode * CycleNode::getInEdge(unsigned int i) const
+{
+ return inedges[i];
+}
+
+/** @returns The number of edges leaving this CycleNode */
+unsigned int CycleNode::getNumInEdges() const
+{
+ return inedges.size();
+}
+
+/**
+ * Adds an edge from this CycleNode to another CycleNode.
+ * @param node The node to which we add a directed edge
+ * @return True if this edge is a new edge; false otherwise
+ */
+void CycleNode::addEdge(CycleNode *node)
+{
+ for (unsigned int i = 0;i < edges.size();i++)
+ if (edges[i] == node)
+ return;