promise: update names/comments

Make it more clear what 'act' is (it's a 'read' action).

diff --git a/promise.h b/promise.h
index 35515d24b2da913b387e5ec06b786a83e3d43877..8ff8c3e319bd5b2f4a4b758be51c8adb7a5dbeb6 100644 (file)
--- a/promise.h
+++ b/promise.h
@@ -21,15 +21,15 @@ struct future_value {
 
 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)
        {
                add_thread(fv.tid);
-               eliminate_thread(act->get_tid());
+               eliminate_thread(read->get_tid());
        }
        modelclock_t get_expiration() const { return expiration; }
        ModelAction * get_action() const { return read; }
@@ -54,7 +54,10 @@ class Promise {
 
        const uint64_t value;
        const modelclock_t expiration;
+
+       /** @brief The action which reads a promised value */
        ModelAction * const read;
+
        const ModelAction *write;
 };