action: add const qualifiers

[model-checker.git] / action.cc

diff --git a/action.cc b/action.cc
index 6ae1d861150151133b7b878525705aac9fa5e910..34650c63927e03e471f9f17354fe39e786e46c77 100644 (file)
--- a/action.cc
+++ b/action.cc
@@ -26,22 +26,22 @@ ModelAction::~ModelAction()
                delete cv;
 }
 
-bool ModelAction::is_read()
+bool ModelAction::is_read() const
 {
        return type == ATOMIC_READ;
 }
 
-bool ModelAction::is_write()
+bool ModelAction::is_write() const
 {
        return type == ATOMIC_WRITE;
 }
 
-bool ModelAction::is_rmw()
+bool ModelAction::is_rmw() const
 {
        return type == ATOMIC_RMW;
 }
 
-bool ModelAction::is_acquire()
+bool ModelAction::is_acquire() const
 {
        switch (order) {
        case memory_order_acquire:
@@ -53,7 +53,7 @@ bool ModelAction::is_acquire()
        }
 }
 
-bool ModelAction::is_release()
+bool ModelAction::is_release() const
 {
        switch (order) {
        case memory_order_release:
@@ -65,17 +65,17 @@ bool ModelAction::is_release()
        }
 }
 
-bool ModelAction::is_seqcst()
+bool ModelAction::is_seqcst() const
 {
        return order==memory_order_seq_cst;
 }
 
-bool ModelAction::same_var(ModelAction *act)
+bool ModelAction::same_var(const ModelAction *act) const
 {
        return location == act->location;
 }
 
-bool ModelAction::same_thread(ModelAction *act)
+bool ModelAction::same_thread(const ModelAction *act) const
 {
        return tid == act->tid;
 }
@@ -90,7 +90,7 @@ bool ModelAction::same_thread(ModelAction *act)
  *  @return tells whether we have to explore a reordering.
  */
 
-bool ModelAction::is_synchronizing(ModelAction *act)
+bool ModelAction::is_synchronizing(const ModelAction *act) const
 {
        //Same thread can't be reordered
        if (same_thread(act))
@@ -117,8 +117,7 @@ bool ModelAction::is_synchronizing(ModelAction *act)
 
 void ModelAction::create_cv(ModelAction *parent)
 {
-       if (cv)
-               return;
+       ASSERT(cv == NULL);
 
        if (parent)
                cv = new ClockVector(parent->cv, this);