clockvector: snapshot our clock vectors

[model-checker.git] / action.cc

diff --git a/action.cc b/action.cc
index c744c65f1b5b06223ea08618c3ea1d1700b6c500..0063d0b27169f29dbe46d2fa71c3535fea2abc9c 100644 (file)
--- a/action.cc
+++ b/action.cc
@@ -201,11 +201,16 @@ bool ModelAction::is_conflicting_lock(const ModelAction *act) const
        return false;
 }
 
+/**
+ * Create a new clock vector for this action. Note that this function allows a
+ * user to clobber (and leak) a ModelAction's existing clock vector. A user
+ * should ensure that the vector has already either been rolled back
+ * (effectively "freed") or freed.
+ *
+ * @param parent A ModelAction from which to inherit a ClockVector
+ */
 void ModelAction::create_cv(const ModelAction *parent)
 {
-       if (cv)
-               delete cv;
-
        if (parent)
                cv = new ClockVector(parent->cv, this);
        else