model: remove useless return code from add_thread()

[model-checker.git] / model.h

diff --git a/model.h b/model.h
index 4a55c52b5e9f2ac637b952f12598d7374ccb561f..723ca43fe3a4f76a667d3ca921f07ea76fdf6f5b 100644 (file)
--- a/model.h
+++ b/model.h
@@ -23,15 +23,19 @@ class NodeStack;
 class CycleGraph;
 class Promise;
 
+/**
+ * Model checker parameter structure. Holds run-time configuration options for
+ * the model checker.
+ */
+struct model_params {
+};
+
 /** @brief The central structure for model-checking */
 class ModelChecker {
 public:
-       ModelChecker();
+       ModelChecker(struct model_params params);
        ~ModelChecker();
 
-       /** 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
@@ -42,10 +46,13 @@ public:
        ucontext_t * get_system_context(void) { return system_context; }
 
        void check_current_action(void);
-       void print_summary(void);
+
+       /** Prints an execution summary with trace information. */
+       void print_summary();
+
        Thread * schedule_next_thread();
 
-       int add_thread(Thread *t);
+       void add_thread(Thread *t);
        void remove_thread(Thread *t);
        Thread * get_thread(thread_id_t tid) { return thread_map->get(id_to_int(tid)); }
 
@@ -53,6 +60,9 @@ public:
        int get_num_threads();
        modelclock_t get_next_seq_num();
 
+       /** @return The currently executing Thread. */
+       Thread * get_current_thread() { return scheduler->get_current_thread(); }
+
        int switch_to_master(ModelAction *act);
        ClockVector * get_cv(thread_id_t tid);
        bool next_execution();
@@ -60,12 +70,19 @@ public:
        bool isfinalfeasible();
        void check_promises(ClockVector *old_cv, ClockVector * merge_cv);
 
+       void finish_execution();
+
        MEMALLOC
 private:
+       /** The scheduler to use: tracks the running/ready Threads */
+       Scheduler *scheduler;
+
        int next_thread_id;
        modelclock_t used_sequence_numbers;
        int num_executions;
 
+       const model_params params;
+
        /**
         * Stores the ModelAction for the current thread action.  Call this
         * immediately before switching from user- to system-context to pass
@@ -74,6 +91,8 @@ private:
         */
        void set_current_action(ModelAction *act) { current_action = act; }
 
+       bool take_step();
+
        ModelAction * get_last_conflict(ModelAction *act);
        void set_backtracking(ModelAction *act);
        thread_id_t get_next_replay_thread();