scheduler: refactor round-robin loop

[c11tester.git] / promise.h

diff --git a/promise.h b/promise.h
index 7e6e396e15f9330e24ed7590e6abaefc9f3b1c38..852fe714f896dfbffc0b409fcd499058841a1ee0 100644 (file)
--- a/promise.h
+++ b/promise.h
@@ -16,33 +16,50 @@
 struct future_value {
        uint64_t value;
        modelclock_t expiration;
+       thread_id_t tid;
 };
 
 class Promise {
  public:
-       Promise(ModelAction *act, struct future_value fv) :
+       Promise(ModelAction *read, struct future_value fv) :
+               num_available_threads(0),
                value(fv.value),
                expiration(fv.expiration),
-               read(act),
+               read(read),
                write(NULL)
        {
-               eliminate_thread(act->get_tid());
+               add_thread(fv.tid);
+               eliminate_thread(read->get_tid());
        }
        modelclock_t get_expiration() const { return expiration; }
        ModelAction * get_action() const { return read; }
        bool eliminate_thread(thread_id_t tid);
-       bool thread_is_eliminated(thread_id_t tid) const;
+       void add_thread(thread_id_t tid);
+       bool thread_is_available(thread_id_t tid) const;
        bool has_failed() const;
        uint64_t get_value() const { return value; }
        void set_write(const ModelAction *act) { write = act; }
-       const ModelAction * get_write() { return write; }
+       const ModelAction * get_write() const { return write; }
+       int get_num_available_threads() const { return num_available_threads; }
+       bool is_compatible(const ModelAction *act) const;
+       bool is_compatible_exclusive(const ModelAction *act) const;
+
+       void print() const;
 
        SNAPSHOTALLOC
  private:
-       std::vector< bool, SnapshotAlloc<bool> > eliminated_thread;
+       /** @brief Thread ID(s) for thread(s) that potentially can satisfy this
+        *  promise */
+       std::vector< bool, SnapshotAlloc<bool> > available_thread;
+
+       int num_available_threads;
+
        const uint64_t value;
        const modelclock_t expiration;
+
+       /** @brief The action which reads a promised value */
        ModelAction * const read;
+
        const ModelAction *write;
 };