Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_HEAP_SWEEPER_THREAD_H_ |
| 6 | #define V8_HEAP_SWEEPER_THREAD_H_ |
| 7 | |
| 8 | #include "src/base/atomicops.h" |
| 9 | #include "src/base/platform/platform.h" |
| 10 | #include "src/flags.h" |
| 11 | #include "src/utils.h" |
| 12 | |
| 13 | #include "src/heap/spaces.h" |
| 14 | |
| 15 | #include "src/heap/heap.h" |
| 16 | |
| 17 | namespace v8 { |
| 18 | namespace internal { |
| 19 | |
| 20 | class SweeperThread : public base::Thread { |
| 21 | public: |
| 22 | explicit SweeperThread(Isolate* isolate); |
| 23 | ~SweeperThread() {} |
| 24 | |
| 25 | void Run(); |
| 26 | void Stop(); |
| 27 | void StartSweeping(); |
| 28 | void WaitForSweeperThread(); |
| 29 | bool SweepingCompleted(); |
| 30 | |
| 31 | static int NumberOfThreads(int max_available); |
| 32 | |
| 33 | private: |
| 34 | Isolate* isolate_; |
| 35 | Heap* heap_; |
| 36 | MarkCompactCollector* collector_; |
| 37 | base::Semaphore start_sweeping_semaphore_; |
| 38 | base::Semaphore end_sweeping_semaphore_; |
| 39 | base::Semaphore stop_semaphore_; |
| 40 | volatile base::AtomicWord stop_thread_; |
| 41 | }; |
| 42 | } |
| 43 | } // namespace v8::internal |
| 44 | |
| 45 | #endif // V8_HEAP_SWEEPER_THREAD_H_ |