allow the fuzzer to continue if only a few data races are detected

[c11tester.git] / execution.cc

diff --git a/execution.cc b/execution.cc
index c5c40a91f7776d43e98dd3cc027e8b9b05db56b0..e0d49808f2bd14844a5cd9d72f916b1af55c13c7 100644 (file)
--- a/execution.cc
+++ b/execution.cc
@@ -27,6 +27,7 @@ struct model_snapshot_members {
                next_thread_id(INITIAL_THREAD_ID),
                used_sequence_numbers(0),
                bugs(),
+               dataraces(),
                bad_synchronization(false),
                asserted(false)
        { }
@@ -34,12 +35,16 @@ struct model_snapshot_members {
        ~model_snapshot_members() {
                for (unsigned int i = 0;i < bugs.size();i++)
                        delete bugs[i];
+               for (unsigned int i = 0;i < dataraces.size(); i++) 
+                       delete dataraces[i];
                bugs.clear();
+               dataraces.clear();
        }
 
        unsigned int next_thread_id;
        modelclock_t used_sequence_numbers;
        SnapVector<bug_message *> bugs;
+       SnapVector<bug_message *> dataraces;
        /** @brief Incorrectly-ordered synchronization was made */
        bool bad_synchronization;
        bool asserted;
@@ -185,12 +190,38 @@ bool ModelExecution::assert_bug(const char *msg)
        return false;
 }
 
+/* @brief Put data races in a different list from other bugs. The purpose
+ *  is to continue the program untill the number of data races exceeds a 
+ *  threshold */
+
+/* TODO: check whether set_assert should be called */
+bool ModelExecution::assert_race(const char *msg)
+{
+       priv->dataraces.push_back(new bug_message(msg));
+
+       if (isfeasibleprefix()) {
+               set_assert();
+               return true;
+       }
+       return false;
+}
+
 /** @return True, if any bugs have been reported for this execution */
 bool ModelExecution::have_bug_reports() const
 {
        return priv->bugs.size() != 0;
 }
 
+/** @return True, if any fatal bugs have been reported for this execution.
+ *  Any bug other than a data race is considered a fatal bug. Data races 
+ *  are not considered fatal unless the number of races is exceeds
+ *  a threshold (temporarily set as 15). 
+ */
+bool ModelExecution::have_fatal_bug_reports() const
+{
+       return priv->bugs.size() != 0 || priv->dataraces.size() >= 15;
+}
+
 SnapVector<bug_message *> * ModelExecution::get_bugs() const
 {
        return &priv->bugs;