1// Copyright 2013 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28#ifndef V8_MARKING_THREAD_H_ 29#define V8_MARKING_THREAD_H_ 30 31#include "atomicops.h" 32#include "flags.h" 33#include "platform.h" 34#include "v8utils.h" 35 36#include "spaces.h" 37 38#include "heap.h" 39 40namespace v8 { 41namespace internal { 42 43class MarkingThread : public Thread { 44 public: 45 explicit MarkingThread(Isolate* isolate); 46 47 void Run(); 48 void Stop(); 49 void StartMarking(); 50 void WaitForMarkingThread(); 51 52 ~MarkingThread() { 53 delete start_marking_semaphore_; 54 delete end_marking_semaphore_; 55 delete stop_semaphore_; 56 } 57 58 private: 59 Isolate* isolate_; 60 Heap* heap_; 61 Semaphore* start_marking_semaphore_; 62 Semaphore* end_marking_semaphore_; 63 Semaphore* stop_semaphore_; 64 volatile AtomicWord stop_thread_; 65 int id_; 66 static Atomic32 id_counter_; 67}; 68 69} } // namespace v8::internal 70 71#endif // V8_MARKING_THREAD_H_ 72