X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=model.h;h=574ed21a041f934c411992b9aa73f94d624b06a6;hp=57959b7c1609c838a7164ae0104eacd50c2ff1b7;hb=bbf356ecc0554af1ecff878e305055ac1673d75e;hpb=728a295c57047984407babb1aa0184cd2fb022b1 diff --git a/model.h b/model.h index 57959b7c..574ed21a 100644 --- a/model.h +++ b/model.h @@ -1,71 +1,114 @@ +/** @file model.h + * @brief Core model checker. + */ + #ifndef __MODEL_H__ #define __MODEL_H__ #include -#include #include #include #include #include "schedule.h" #include "mymemory.h" -#include #include "libthreads.h" -#include "libatomic.h" #include "threads.h" #include "action.h" +#include "clockvector.h" +#include "hashtable.h" /* Forward declaration */ class NodeStack; +class CycleGraph; +class Promise; +/** @brief The central structure for model-checking */ class ModelChecker { public: ModelChecker(); ~ModelChecker(); - class Scheduler *scheduler; + /** The scheduler to use: tracks the running/ready Threads */ + Scheduler *scheduler; + + /** Stores the context for the main model-checking system thread (call + * once) + * @param ctxt The system context structure + */ void set_system_context(ucontext_t *ctxt) { system_context = ctxt; } + + /** @returns the context for the main model-checking system thread */ ucontext_t * get_system_context(void) { return system_context; } - void set_current_action(ModelAction *act) { current_action = act; } void check_current_action(void); void print_summary(void); Thread * schedule_next_thread(); int add_thread(Thread *t); void remove_thread(Thread *t); - Thread * get_thread(thread_id_t tid) { return (*thread_map)[id_to_int(tid)]; } + Thread * get_thread(thread_id_t tid) { return thread_map->get(id_to_int(tid)); } thread_id_t get_next_id(); - int get_next_seq_num(); + int get_num_threads(); + modelclock_t get_next_seq_num(); int switch_to_master(ModelAction *act); - + ClockVector * get_cv(thread_id_t tid); bool next_execution(); + bool isfeasible(); + void check_promises(ClockVector *old_cv, ClockVector * merge_cv); 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(); ModelAction * get_next_backtrack(); void reset_to_initial_state(); - - void print_list(action_list_t *list); - + void resolve_promises(ModelAction *curr); + void compute_promises(ModelAction *curr); + + 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); + ModelAction *current_action; ModelAction *diverge; thread_id_t nextThread; ucontext_t *system_context; action_list_t *action_trace; - std::map *thread_map; - class NodeStack *node_stack; + HashTable *thread_map; + + /** Per-object list of actions. Maps an object (i.e., memory location) + * to a trace of all actions performed on the object. */ + HashTable *obj_map; + + HashTable, uintptr_t, 4 > *obj_thrd_map; + std::vector * promises; + std::vector *thrd_last_action; + NodeStack *node_stack; ModelAction *next_backtrack; + CycleGraph * cyclegraph; + bool failed_promise; }; extern ModelChecker *model;