1 files changed, 6 insertions, 2 deletions
diff --git a/Source/JavaScriptCore/heap/Heap.h b/Source/JavaScriptCore/heap/Heap.h
index edfd91483..296447d7b 100644
--- a/Source/JavaScriptCore/heap/Heap.h
+++ b/Source/JavaScriptCore/heap/Heap.h
@@ -47,6 +47,7 @@ namespace JSC {
     class GlobalCodeBlock;
     class Heap;
     class HeapRootVisitor;
+    class IncrementalSweeper;
     class JSCell;
     class JSGlobalData;
     class JSValue;
@@ -100,6 +101,8 @@ namespace JSC {
         JS_EXPORT_PRIVATE void setActivityCallback(PassOwnPtr<GCActivityCallback>);
         JS_EXPORT_PRIVATE void setGarbageCollectionTimerEnabled(bool);
 
+        IncrementalSweeper* sweeper();
+
         // true if an allocation or collection is in progress
         inline bool isBusy();
         
@@ -217,6 +220,7 @@ namespace JSC {
         OwnPtr<HashSet<MarkedArgumentBuffer*> > m_markListSet;
 
         OwnPtr<GCActivityCallback> m_activityCallback;
+        OwnPtr<IncrementalSweeper> m_sweeper;
         
         MachineThreads m_machineThreads;
         
@@ -240,9 +244,9 @@ namespace JSC {
     inline bool Heap::shouldCollect()
     {
 #if ENABLE(GGC)
-        return m_objectSpace.nurseryWaterMark() >= m_minBytesPerCycle && m_isSafeToCollect;
+        return m_objectSpace.nurseryWaterMark() >= m_minBytesPerCycle && m_isSafeToCollect && m_operationInProgress == NoOperation;
 #else
-        return m_bytesAllocated > m_bytesAllocatedLimit && m_isSafeToCollect;
+        return m_bytesAllocated > m_bytesAllocatedLimit && m_isSafeToCollect && m_operationInProgress == NoOperation;
 #endif
     }