mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 1 | // Copyright 2012 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_SWEEPER_THREAD_H_ |
| 29 | #define V8_SWEEPER_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 | |
| 40 | namespace v8 { |
| 41 | namespace internal { |
| 42 | |
| 43 | class SweeperThread : public Thread { |
| 44 | public: |
| 45 | explicit SweeperThread(Isolate* isolate); |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 46 | ~SweeperThread() {} |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 47 | |
| 48 | void Run(); |
| 49 | void Stop(); |
| 50 | void StartSweeping(); |
| 51 | void WaitForSweeperThread(); |
| 52 | intptr_t StealMemory(PagedSpace* space); |
| 53 | |
machenbach@chromium.org | 9af454f | 2013-11-20 09:25:57 +0000 | [diff] [blame^] | 54 | static int NumberOfThreads(int max_available); |
| 55 | |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 56 | private: |
| 57 | Isolate* isolate_; |
| 58 | Heap* heap_; |
| 59 | MarkCompactCollector* collector_; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 60 | Semaphore start_sweeping_semaphore_; |
| 61 | Semaphore end_sweeping_semaphore_; |
| 62 | Semaphore stop_semaphore_; |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 63 | FreeList free_list_old_data_space_; |
| 64 | FreeList free_list_old_pointer_space_; |
| 65 | FreeList private_free_list_old_data_space_; |
| 66 | FreeList private_free_list_old_pointer_space_; |
| 67 | volatile AtomicWord stop_thread_; |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 68 | }; |
| 69 | |
| 70 | } } // namespace v8::internal |
| 71 | |
| 72 | #endif // V8_SWEEPER_THREAD_H_ |