X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=model.h;h=8593b98f06a186aa7e297cd661219edf1c69c264;hb=84e24d516d4e9dbd30f1fff7e9a185d1540d20eb;hp=ab961f840b03613492a4da2b8585453bbe6b2847;hpb=eec79bb1863a2d706aa89505afd5f8159e144030;p=model-checker.git diff --git a/model.h b/model.h index ab961f8..8593b98 100644 --- a/model.h +++ b/model.h @@ -1,5 +1,5 @@ /** @file model.h - * @brief Core model checker. + * @brief Core model checker. */ #ifndef __MODEL_H__ @@ -13,14 +13,14 @@ #include "schedule.h" #include "mymemory.h" -#include #include "libthreads.h" -#include "libatomic.h" #include "threads.h" #include "action.h" +#include "clockvector.h" /* Forward declaration */ class NodeStack; +class CycleGraph; /** @brief The central structure for model-checking */ class ModelChecker { @@ -29,7 +29,7 @@ public: ~ModelChecker(); /** The scheduler to use: tracks the running/ready Threads */ - class Scheduler *scheduler; + Scheduler *scheduler; /** Stores the context for the main model-checking system thread (call * once) @@ -40,13 +40,6 @@ public: /** @returns the context for the main model-checking system thread */ ucontext_t * get_system_context(void) { return system_context; } - /** - * Stores the ModelAction for the current thread action. Call this - * immediately before switching from user- to system-context to pass - * data between them. - * @param act The ModelAction created by the user-thread action - */ - void set_current_action(ModelAction *act) { current_action = act; } void check_current_action(void); void print_summary(void); Thread * schedule_next_thread(); @@ -57,18 +50,27 @@ public: thread_id_t get_next_id(); int get_num_threads(); - int get_next_seq_num(); + modelclock_t get_next_seq_num(); int switch_to_master(ModelAction *act); - + ClockVector * get_cv(thread_id_t tid); bool next_execution(); + bool isfeasible(); MEMALLOC private: int next_thread_id; - int used_sequence_numbers; + modelclock_t used_sequence_numbers; int num_executions; + /** + * Stores the ModelAction for the current thread action. Call this + * immediately before switching from user- to system-context to pass + * data between them. + * @param act The ModelAction created by the user-thread action + */ + void set_current_action(ModelAction *act) { current_action = act; } + ModelAction * get_last_conflict(ModelAction *act); void set_backtracking(ModelAction *act); thread_id_t get_next_replay_thread(); @@ -78,9 +80,12 @@ private: void add_action_to_lists(ModelAction *act); ModelAction * get_last_action(thread_id_t tid); ModelAction * get_parent_action(thread_id_t tid); + ModelAction * get_last_seq_cst(const void *location); void build_reads_from_past(ModelAction *curr); + ModelAction * process_rmw(ModelAction * curr); + void r_modification_order(ModelAction * curr, const ModelAction *rf); + void w_modification_order(ModelAction * curr); - void print_list(action_list_t *list); ModelAction *current_action; ModelAction *diverge; @@ -88,11 +93,17 @@ private: ucontext_t *system_context; action_list_t *action_trace; - std::map *thread_map; + std::map *thread_map; + + /** Per-object list of actions. Maps an object (i.e., memory location) + * to a trace of all actions performed on the object. */ + std::map *obj_map; + std::map > *obj_thrd_map; std::vector *thrd_last_action; - class NodeStack *node_stack; + NodeStack *node_stack; ModelAction *next_backtrack; + CycleGraph * cyclegraph; }; extern ModelChecker *model;