diff options
| author | Morgan Deters <mdeters@gmail.com> | 2010-03-12 19:41:04 +0000 |
|---|---|---|
| committer | Morgan Deters <mdeters@gmail.com> | 2010-03-12 19:41:04 +0000 |
| commit | 20b3dabb4823ede8147a08a47f8d909980414bee (patch) | |
| tree | 6d6ea617bef8d840de8f8ff737e00acadb6675f9 /src/util/decision_engine.h | |
| parent | 3cf73e344987c2449943ca3a97054565eb9d5726 (diff) | |
* Added shutdown() functions to SmtEngine, TheoryEngine, PropEngine,
DecisionEngine, and Theory. These are triggered from the SmtEngine
dtor before the other engines are deleted. This is important
because of potential issues with outstanding TNodes in Theory
implementations (which fail if the destruction is done in the wrong
order, in certain cases).
* Favor "FactQueueResetter" instead of clearAssertionQueues() for
resetting facts queue in Theory implementations.
* Better theory-rewriting code.
* Minor cleanups.
Diffstat (limited to 'src/util/decision_engine.h')
| -rw-r--r-- | src/util/decision_engine.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/util/decision_engine.h b/src/util/decision_engine.h index ac9fc5ffd..fd757b734 100644 --- a/src/util/decision_engine.h +++ b/src/util/decision_engine.h @@ -41,6 +41,15 @@ public: */ virtual Node nextDecision();// = 0 + /** + * This is called by SmtEngine, at shutdown time, just before + * destruction. It is important because there are destruction + * ordering issues between some parts of the system. For now, + * there's nothing to do here in the DecisionEngine. + */ + virtual void shutdown() { + } + // TODO: design decision: decision engine should be notified of // propagated lits, and also why(?) (so that it can make decisions // based on the utility of various theories and various theory |