model: add read-acquire/fence-release support

[c11tester.git] / model.h

diff --git a/model.h b/model.h
index 432399ea22eb7124557cb8cdc9bcfa8b38b6d605..a2bbab2eee0aef821ae9e7ef1e79820a71da958c 100644 (file)
--- a/model.h
+++ b/model.h
@@ -5,7 +5,6 @@
 #ifndef __MODEL_H__
 #define __MODEL_H__
 
-#include <list>
 #include <vector>
 #include <cstddef>
 #include <ucontext.h>
@@ -111,25 +110,21 @@ public:
 
        thread_id_t get_next_id();
        unsigned int get_num_threads() const;
-       Thread * get_current_thread();
+       Thread * get_current_thread() const;
 
        int switch_to_master(ModelAction *act);
-       ClockVector * get_cv(thread_id_t tid);
-       ModelAction * get_parent_action(thread_id_t tid);
-       bool isfinalfeasible() const;
+       ClockVector * get_cv(thread_id_t tid) const;
+       ModelAction * get_parent_action(thread_id_t tid) const;
        void check_promises_thread_disabled();
        void mo_check_promises(thread_id_t tid, const ModelAction *write);
        void check_promises(thread_id_t tid, ClockVector *old_cv, ClockVector * merge_cv);
-       void get_release_seq_heads(ModelAction *act, rel_heads_list_t *release_heads);
        bool isfeasibleprefix() const;
 
        bool assert_bug(const char *msg);
        void assert_user_bug(const char *msg);
 
-       void set_bad_synchronization();
-
        const model_params params;
-       Node * get_curr_node();
+       Node * get_curr_node() const;
 
        MEMALLOC
 private:
@@ -141,6 +136,7 @@ private:
        bool mo_may_allow(const ModelAction * writer, const ModelAction *reader);
        bool has_asserted() const;
        void set_assert();
+       void set_bad_synchronization();
        bool promises_expired() const;
        void execute_sleep_set();
        void wake_up_sleeping_actions(ModelAction * curr);
@@ -155,6 +151,7 @@ private:
        bool process_mutex(ModelAction *curr);
        bool process_thread_action(ModelAction *curr);
        void process_relseq_fixup(ModelAction *curr, work_queue_t *work_queue);
+       bool read_from(ModelAction *act, const ModelAction *rf);
        bool check_action_enabled(ModelAction *curr);
 
        bool take_step();
@@ -172,13 +169,16 @@ private:
        void check_curr_backtracking(ModelAction * curr);
        void add_action_to_lists(ModelAction *act);
        ModelAction * get_last_action(thread_id_t tid) const;
-       ModelAction * get_last_seq_cst(ModelAction *curr) const;
+       ModelAction * get_last_fence_release(thread_id_t tid) const;
+       ModelAction * get_last_seq_cst_write(ModelAction *curr) const;
+       ModelAction * get_last_seq_cst_fence(thread_id_t tid, const ModelAction *before_fence) const;
        ModelAction * get_last_unlock(ModelAction *curr) const;
        void build_reads_from_past(ModelAction *curr);
        ModelAction * process_rmw(ModelAction *curr);
        void post_r_modification_order(ModelAction *curr, const ModelAction *rf);
        bool r_modification_order(ModelAction *curr, const ModelAction *rf);
        bool w_modification_order(ModelAction *curr);
+       void get_release_seq_heads(ModelAction *act, rel_heads_list_t *release_heads);
        bool release_seq_heads(const ModelAction *rf, rel_heads_list_t *release_heads, struct release_seq *pending) const;
        bool resolve_release_sequences(void *location, work_queue_t *work_queue);
 
@@ -214,6 +214,7 @@ private:
        std::vector< struct release_seq *, SnapshotAlloc<struct release_seq *> > *pending_rel_seqs;
 
        std::vector< ModelAction *, SnapshotAlloc<ModelAction *> > *thrd_last_action;
+       std::vector< ModelAction *, SnapshotAlloc<ModelAction *> > *thrd_last_fence_release;
        NodeStack *node_stack;
 
        /** Private data members that should be snapshotted. They are grouped
@@ -244,6 +245,7 @@ private:
        struct execution_stats stats;
        void record_stats();
 
+       bool is_feasible_prefix_ignore_relseq() const;
        bool is_infeasible_ignoreRMW() const;
        bool is_infeasible() const;
        bool is_deadlocked() const;