forgot to add two files...
[model-checker.git] / action.cc
index 5705892..16f2327 100644 (file)
--- a/action.cc
+++ b/action.cc
@@ -187,6 +187,19 @@ bool ModelAction::is_seqcst() const
 
 bool ModelAction::same_var(const ModelAction *act) const
 {
+       if ( act->is_wait() || is_wait() ) {
+               if ( act->is_wait() && is_wait() ) {
+                       if ( ((void *)value) == ((void *)act->value) )
+                               return true;
+               } else if ( is_wait() ) {
+                       if ( ((void *)value) == act->location )
+                               return true;
+               } else if ( act->is_wait() ) {
+                       if ( location == ((void *)act->value) )
+                               return true;
+               }
+       }
+
        return location == act->location;
 }
 
@@ -244,6 +257,27 @@ bool ModelAction::could_synchronize_with(const ModelAction *act) const
        if (is_read() && is_acquire() && act->could_be_write() && act->is_release())
                return true;
 
+       //lock just released...we can grab lock
+       if ((is_lock() ||is_trylock()) && (act->is_unlock()||act->is_wait()))
+               return true;
+
+       //lock just acquired...we can fail to grab lock
+       if (is_trylock() && act->is_success_lock())
+               return true;
+
+       //other thread stalling on lock...we can release lock
+       if (is_unlock() && (act->is_trylock()||act->is_lock()))
+               return true;
+
+       if (is_trylock() && (act->is_unlock()||act->is_wait()))
+               return true;
+
+       if ( is_notify() && act->is_wait() )
+               return true;
+
+       if ( is_wait() && act->is_notify() )
+               return true;
+
        // Otherwise handle by reads_from relation
        return false;
 }
@@ -398,6 +432,15 @@ void ModelAction::print() const
        case ATOMIC_TRYLOCK:
                type_str = "trylock";
                break;
+       case ATOMIC_WAIT:
+               type_str = "wait";
+               break;
+       case ATOMIC_NOTIFY_ONE:
+               type_str = "notify one";
+               break;
+       case ATOMIC_NOTIFY_ALL:
+               type_str = "notify all";
+               break;
        default:
                type_str = "unknown type";
        }