Added parallel marking threads.

src/marking-thread.h

 // Copyright 2012 the V8 project authors. All rights reserved.

[Michael Starzinger, 2013/01/31 14:00:04]

2013

[Hannes Payer (out of office), 2013/01/31 14:09:10]

Done.

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-#ifndef V8_SWEEPER_THREAD_H_
-#define V8_SWEEPER_THREAD_H_
+#ifndef V8_MARKING_THREAD_H_
+#define V8_MARKING_THREAD_H_
 
 #include "atomicops.h"
 #include "flags.h"
 #include "platform.h"
 #include "v8utils.h"
 
 #include "spaces.h"
 
 #include "heap.h"

[Michael Starzinger, 2013/01/31 14:00:04]

Is it possible to alpha-sort the includes or does that cause dependency errors?

[Hannes Payer (out of office), 2013/01/31 14:09:10]

It results in dependency errors.

 
 namespace v8 {
 namespace internal {
 
-class SweeperThread : public Thread {
+class MarkingThread : public Thread {
  public:
-  explicit SweeperThread(Isolate* isolate);
+  explicit MarkingThread(Isolate* isolate);
 
   void Run();
   void Stop();
-  void StartSweeping();
-  void WaitForSweeperThread();
-  intptr_t StealMemory(PagedSpace* space);
+  void StartMarking();
+  void WaitForMarkingThread();
 
-  static bool sweeping_pending() { return sweeping_pending_; }
-  static void set_sweeping_pending(bool sweeping_pending) {
-    sweeping_pending_ = sweeping_pending;
-  }
-
-  ~SweeperThread() {
-    delete start_sweeping_semaphore_;
-    delete end_sweeping_semaphore_;
+  ~MarkingThread() {
+    delete start_marking_semaphore_;
+    delete end_marking_semaphore_;
     delete stop_semaphore_;
   }
 
  private:
   Isolate* isolate_;
   Heap* heap_;
-  MarkCompactCollector* collector_;
-  Semaphore* start_sweeping_semaphore_;
-  Semaphore* end_sweeping_semaphore_;
+  Semaphore* start_marking_semaphore_;
+  Semaphore* end_marking_semaphore_;
   Semaphore* stop_semaphore_;
-  FreeList free_list_old_data_space_;
-  FreeList free_list_old_pointer_space_;
-  FreeList private_free_list_old_data_space_;
-  FreeList private_free_list_old_pointer_space_;
   volatile AtomicWord stop_thread_;
-  static bool sweeping_pending_;
+  int id_;
+  static Atomic32 id_counter_;
 };
 
 } }  // namespace v8::internal
 
-#endif  // V8_SWEEPER_THREAD_H_
+#endif  // V8_MARKING_THREAD_H_