clock: add modelclock_t typedef, use 'unsigned int'

[model-checker.git] / model.cc

diff --git a/model.cc b/model.cc
index 9be04b6956cc7ff852a012f3a5b1f98746eebf6d..4e2bb0250f05480ca3ccde1f6b99c26afe344a8b 100644 (file)
--- a/model.cc
+++ b/model.cc
@@ -78,7 +78,7 @@ int ModelChecker::get_num_threads()
 }
 
 /** @returns a sequence number for a new ModelAction */
-int ModelChecker::get_next_seq_num()
+modelclock_t ModelChecker::get_next_seq_num()
 {
        return ++used_sequence_numbers;
 }
@@ -205,6 +205,7 @@ void ModelChecker::set_backtracking(ModelAction *act)
        if (node->has_been_explored(t->get_id()))
                return;
 
+       /* Cache the latest backtracking point */
        if (!next_backtrack || *prev > *next_backtrack)
                next_backtrack = prev;