Multi-page growing and shrinking new-space

src/incremental-marking.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 20 matching lines @@
 
 #include "execution.h"
 #include "mark-compact.h"
 #include "objects.h"
 
 namespace v8 {
 namespace internal {
 
 
 // TODO(gc) rename into IncrementalMarker after merge.
-class IncrementalMarking : public AllStatic {
+class IncrementalMarking {
  public:
   enum State {
     STOPPED,
     SWEEPING,
     MARKING,
     COMPLETE
   };
 
   explicit IncrementalMarking(Heap* heap);
 
@@ skipping 82 matching lines @@
   }
 
   inline double steps_took() {
     return steps_took_;
   }
 
   inline void SetOldSpacePageFlags(MemoryChunk* chunk) {
     SetOldSpacePageFlags(chunk, IsMarking());
   }
 
-  inline void SetNewSpacePageFlags(MemoryChunk* chunk) {
+  inline void SetNewSpacePageFlags(NewSpacePage* chunk) {
     SetNewSpacePageFlags(chunk, IsMarking());
   }
 
   MarkingDeque* marking_deque() { return &marking_deque_; }
 
  private:
   void set_should_hurry(bool val) {
     should_hurry_ = val;
   }
 
   void ResetStepCounters() {
     steps_count_ = 0;
     steps_took_ = 0;
     allocation_marking_factor_ = kInitialAllocationMarkingFactor;
   }
 
   static void ClearMarkbits(PagedSpace* space);
+  static void ClearMarkbits(NewSpace* space);
   void ClearMarkbits();
 
 #ifdef DEBUG
   void VerifyMarkbitsAreClean();
   static void VerifyMarkbitsAreClean(PagedSpace* space);
+  static void VerifyMarkbitsAreClean(NewSpace* space);
 #endif
 
   void StartMarking();
 
-  void DeactivateWriteBarrierForSpace(PagedSpace* space);
-  void DeactivateWriteBarrier();
+  void DeactivateIncrementalWriteBarrierForSpace(PagedSpace* space);
+  void DeactivateIncrementalWriteBarrierForSpace(NewSpace* space);
+  void DeactivateIncrementalWriteBarrier();
 
   static void SetOldSpacePageFlags(MemoryChunk* chunk, bool is_marking);
-  static void SetNewSpacePageFlags(MemoryChunk* chunk, bool is_marking);
+  static void SetNewSpacePageFlags(NewSpacePage* chunk, bool is_marking);
 
   void EnsureMarkingDequeIsCommitted();
 
   Heap* heap_;
 
   State state_;
 
   VirtualMemory* marking_deque_memory_;
   MarkingDeque marking_deque_;
 
   int steps_count_;
   double steps_took_;
   bool should_hurry_;
   int allocation_marking_factor_;
   intptr_t allocated_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_INCREMENTAL_MARKING_H_