model: update switch_to_master() comment

[model-checker.git] / model.cc

diff --git a/model.cc b/model.cc
index 4d6d7634bf26c58eb83e2070b99df902c05b41ba..6ec608038ecd348eac26dbec8ed4468da25a9b0c 100644 (file)
--- a/model.cc
+++ b/model.cc
@@ -1481,6 +1481,7 @@ bool ModelChecker::resolve_promises(ModelAction *write)
                        //Make sure the promise's value matches the write's value
                        ASSERT(promise->get_value() == write->get_value());
 
+                       delete(promise);
                        promises->erase(promises->begin() + promise_index);
                        resolved = true;
                } else
@@ -1688,7 +1689,10 @@ void ModelChecker::remove_thread(Thread *t)
  * context). This switch is made with the intention of exploring a particular
  * model-checking action (described by a ModelAction object). Must be called
  * from a user-thread context.
- * @param act The current action that will be explored. Must not be NULL.
+ *
+ * @param act The current action that will be explored. May be NULL only if
+ * trace is exiting via an assertion (see ModelChecker::set_assert and
+ * ModelChecker::has_asserted).
  * @return Return status from the 'swap' call (i.e., success/fail, 0/-1)
  */
 int ModelChecker::switch_to_master(ModelAction *act)