X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=cyclegraph.h;h=e2b586403994b5573c863d4825857e7945d28c8d;hp=d5c6a92af78715de0ff4f2c323a578b7a43f6ff1;hb=241f7577895a5c74aad14d9903b6c25ea02e217d;hpb=7524803854c2de38c0311fe5037e3c17105ccfaa diff --git a/cyclegraph.h b/cyclegraph.h index d5c6a92a..e2b58640 100644 --- a/cyclegraph.h +++ b/cyclegraph.h @@ -9,129 +9,80 @@ #ifndef __CYCLEGRAPH_H__ #define __CYCLEGRAPH_H__ -#include "stl_wrappers.h" #include #include #include "hashtable.h" #include "config.h" #include "mymemory.h" - -class Promise; -class CycleNode; -class ModelAction; - -typedef model_vector< const Promise * > promise_list_t; +#include "stl-model.h" +#include "classlist.h" /** @brief A graph of Model Actions for tracking cycles. */ class CycleGraph { - public: +public: CycleGraph(); ~CycleGraph(); + void addEdge(const ModelAction *from, const ModelAction *to); + void addEdge(const ModelAction *from, const ModelAction *to, bool forceedge); + void addRMWEdge(const ModelAction *from, const ModelAction *rmw); + bool checkReachable(const ModelAction *from, const ModelAction *to) const; - template - bool addEdge(const T *from, const U *to); - - template - void addRMWEdge(const T *from, const ModelAction *rmw); - - bool checkForCycles() const; - bool checkPromise(const ModelAction *from, Promise *p) const; - - template - bool checkReachable(const T *from, const U *to) const; - - void startChanges(); - void commitChanges(); - void rollbackChanges(); #if SUPPORT_MOD_ORDER_DUMP void dumpNodes(FILE *file) const; void dumpGraphToFile(const char *filename) const; - void dot_print_node(FILE *file, const ModelAction *act); - template - void dot_print_edge(FILE *file, const T *from, const U *to, const char *prop); + void dot_print_edge(FILE *file, const ModelAction *from, const ModelAction *to, const char *prop); #endif - bool resolvePromise(const Promise *promise, ModelAction *writer); - + CycleNode * getNode_noCreate(const ModelAction *act) const; SNAPSHOTALLOC - private: - bool addNodeEdge(CycleNode *fromnode, CycleNode *tonode); +private: + void addNodeEdge(CycleNode *fromnode, CycleNode *tonode, bool forceedge); void putNode(const ModelAction *act, CycleNode *node); - void putNode(const Promise *promise, CycleNode *node); - void erasePromiseNode(const Promise *promise); CycleNode * getNode(const ModelAction *act); - CycleNode * getNode(const Promise *promise); - CycleNode * getNode_noCreate(const ModelAction *act) const; - CycleNode * getNode_noCreate(const Promise *promise) const; - bool mergeNodes(CycleNode *node1, CycleNode *node2); - - HashTable *discovered; - model_vector< const CycleNode * > * queue; - /** @brief A table for mapping ModelActions to CycleNodes */ HashTable actionToNode; - /** @brief A table for mapping Promises to CycleNodes */ - HashTable promiseToNode; + SnapVector * queue; #if SUPPORT_MOD_ORDER_DUMP - std::vector< CycleNode *, SnapshotAlloc > nodeList; + SnapVector nodeList; #endif bool checkReachable(const CycleNode *from, const CycleNode *to) const; - - /** @brief A flag: true if this graph contains cycles */ - bool hasCycles; - bool oldCycles; - - std::vector< CycleNode *, SnapshotAlloc > rollbackvector; - std::vector< CycleNode *, SnapshotAlloc > rmwrollbackvector; }; /** - * @brief A node within a CycleGraph; corresponds either to one ModelAction or - * to a promised future value + * @brief A node within a CycleGraph; corresponds either to one ModelAction */ class CycleNode { - public: +public: CycleNode(const ModelAction *act); - CycleNode(const Promise *promise); - bool addEdge(CycleNode *node); + void addEdge(CycleNode *node); CycleNode * getEdge(unsigned int i) const; unsigned int getNumEdges() const; - CycleNode * getBackEdge(unsigned int i) const; - unsigned int getNumBackEdges() const; CycleNode * removeEdge(); - CycleNode * removeBackEdge(); - bool setRMW(CycleNode *); CycleNode * getRMW() const; void clearRMW() { hasRMW = NULL; } const ModelAction * getAction() const { return action; } - const Promise * getPromise() const { return promise; } - bool is_promise() const { return !action; } - void resolvePromise(const ModelAction *writer); SNAPSHOTALLOC - private: +private: /** @brief The ModelAction that this node represents */ const ModelAction *action; - /** @brief The promise represented by this node; only valid when action - * is NULL */ - const Promise *promise; - /** @brief The edges leading out from this node */ - std::vector< CycleNode *, SnapshotAlloc > edges; - - /** @brief The edges leading into this node */ - std::vector< CycleNode *, SnapshotAlloc > back_edges; + SnapVector edges; /** Pointer to a RMW node that reads from this node, or NULL, if none * exists */ CycleNode *hasRMW; + + /** ClockVector for this Node. */ + ClockVector *cv; + friend class CycleGraph; }; -#endif /* __CYCLEGRAPH_H__ */ +#endif /* __CYCLEGRAPH_H__ */