+/** @file model.h
+ * @brief Core model checker.
+ */
+
#ifndef __MODEL_H__
#define __MODEL_H__
-struct model_checker {
- struct scheduler *scheduler;
+#include <cstddef>
+#include <inttypes.h>
+
+#include "mymemory.h"
+#include "hashtable.h"
+#include "config.h"
+#include "modeltypes.h"
+#include "stl-model.h"
+#include "context.h"
+#include "params.h"
+
+/* Forward declaration */
+class Node;
+class NodeStack;
+class CycleGraph;
+class Promise;
+class Scheduler;
+class Thread;
+class ClockVector;
+class TraceAnalysis;
+class ModelExecution;
+class ModelAction;
+
+typedef SnapList<ModelAction *> action_list_t;
+
+/** @brief Model checker execution stats */
+struct execution_stats {
+ int num_total; /**< @brief Total number of executions */
+ int num_infeasible; /**< @brief Number of infeasible executions */
+ int num_buggy_executions; /** @brief Number of buggy executions */
+ int num_complete; /**< @brief Number of feasible, non-buggy, complete executions */
+ int num_redundant; /**< @brief Number of redundant, aborted executions */
};
+/** @brief The central structure for model-checking */
+class ModelChecker {
+public:
+ ModelChecker(struct model_params params);
+ ~ModelChecker();
+
+ void run();
+
+ /** @returns the context for the main model-checking system thread */
+ ucontext_t * get_system_context() { return &system_context; }
+
+ ModelExecution * get_execution() const { return execution; }
+
+ int get_execution_number() const { return execution_number; }
+
+ Thread * get_thread(thread_id_t tid) const;
+ Thread * get_thread(const ModelAction *act) const;
+
+ Thread * get_current_thread() const;
+
+ void switch_from_master(Thread *thread);
+ uint64_t switch_to_master(ModelAction *act);
+
+ bool assert_bug(const char *msg, ...);
+ void assert_user_bug(const char *msg);
+
+ const model_params params;
+ void add_trace_analysis(TraceAnalysis *a) {
+ trace_analyses.push_back(a);
+ }
+
+ MEMALLOC
+private:
+ /** The scheduler to use: tracks the running/ready Threads */
+ Scheduler * const scheduler;
+ NodeStack * const node_stack;
+ ModelExecution *execution;
+
+ int execution_number;
+
+ unsigned int get_num_threads() const;
+
+ void execute_sleep_set();
+
+ bool next_execution();
+ bool should_terminate_execution();
+
+ Thread * get_next_thread();
+ void reset_to_initial_state();
+
+
+ ModelAction *diverge;
+ ModelAction *earliest_diverge;
+
+ ucontext_t system_context;
+
+ ModelVector<TraceAnalysis *> trace_analyses;
+
+ /** @brief The cumulative execution stats */
+ struct execution_stats stats;
+ void record_stats();
+ void run_trace_analyses();
+ void print_bugs() const;
+ void print_execution(bool printbugs) const;
+ void print_stats() const;
+
+ friend void user_main_wrapper();
+};
+
+extern ModelChecker *model;
+
#endif /* __MODEL_H__ */