nodestack: add const

diff --git a/nodestack.cc b/nodestack.cc
index 11b83cc1b341145c1ed1faf130afa4bf9ae28d8b..2f99aef24639a9cf128f5083362596aaf0c374e5 100644 (file)
--- a/nodestack.cc
+++ b/nodestack.cc
@@ -386,7 +386,8 @@ int Node::get_read_from_size() const
        return may_read_from.size();
 }
 
-const ModelAction * Node::get_read_from_at(int i) {
+const ModelAction * Node::get_read_from_at(int i) const
+{
        return may_read_from[i];
 }
 

diff --git a/nodestack.h b/nodestack.h
index d7c13688e54898dc4fa09d0a532d8866622659a2..94bb58ee1e64d235e4daf0801ee6861491c6b292 100644 (file)
--- a/nodestack.h
+++ b/nodestack.h
@@ -89,7 +89,7 @@ public:
        bool increment_read_from();
        bool read_from_empty() const;
        int get_read_from_size() const;
-       const ModelAction * get_read_from_at(int i);
+       const ModelAction * get_read_from_at(int i) const;
 
        void set_promise(unsigned int i, bool is_rmw);
        bool get_promise(unsigned int i) const;
@@ -114,9 +114,9 @@ public:
 private:
        void explore(thread_id_t tid);
 
-       ModelAction *action;
-       Node *parent;
-       int num_threads;
+       ModelAction * const action;
+       Node * const parent;
+       const int num_threads;
        std::vector< bool, ModelAlloc<bool> > explored_children;
        std::vector< bool, ModelAlloc<bool> > backtrack;
        std::vector< struct fairness_info, ModelAlloc< struct fairness_info> > fairness;