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| 1 /* | 1 /* |
| 2 * Copyright (C) 2014 Google Inc. All rights reserved. | 2 * Copyright (C) 2014 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ | 29 */ |
| 30 | 30 |
| 31 #ifndef GCTaskRunner_h | 31 #ifndef GCTaskRunner_h |
| 32 #define GCTaskRunner_h | 32 #define GCTaskRunner_h |
| 33 | 33 |
| 34 #include "platform/ThreadSafeFunctional.h" | 34 #include "platform/CrossThreadFunctional.h" |
| 35 #include "platform/heap/ThreadState.h" | 35 #include "platform/heap/ThreadState.h" |
| 36 #include "public/platform/WebTaskRunner.h" | 36 #include "public/platform/WebTaskRunner.h" |
| 37 #include "public/platform/WebThread.h" | 37 #include "public/platform/WebThread.h" |
| 38 #include "public/platform/WebTraceLocation.h" | 38 #include "public/platform/WebTraceLocation.h" |
| 39 #include "wtf/PtrUtil.h" | 39 #include "wtf/PtrUtil.h" |
| 40 #include <memory> | 40 #include <memory> |
| 41 | 41 |
| 42 namespace blink { | 42 namespace blink { |
| 43 | 43 |
| 44 class MessageLoopInterruptor final : public BlinkGCInterruptor { | 44 class MessageLoopInterruptor final : public BlinkGCInterruptor { |
| 45 public: | 45 public: |
| 46 explicit MessageLoopInterruptor(WebTaskRunner* taskRunner) : m_taskRunner(ta
skRunner) { } | 46 explicit MessageLoopInterruptor(WebTaskRunner* taskRunner) : m_taskRunner(ta
skRunner) { } |
| 47 | 47 |
| 48 void requestInterrupt() override | 48 void requestInterrupt() override |
| 49 { | 49 { |
| 50 // GCTask has an empty run() method. Its only purpose is to guarantee | 50 // GCTask has an empty run() method. Its only purpose is to guarantee |
| 51 // that MessageLoop will have a task to process which will result | 51 // that MessageLoop will have a task to process which will result |
| 52 // in GCTaskRunner::didProcessTask being executed. | 52 // in GCTaskRunner::didProcessTask being executed. |
| 53 m_taskRunner->postTask(BLINK_FROM_HERE, threadSafeBind(&runGCTask)); | 53 m_taskRunner->postTask(BLINK_FROM_HERE, crossThreadBind(&runGCTask)); |
| 54 } | 54 } |
| 55 | 55 |
| 56 private: | 56 private: |
| 57 static void runGCTask() | 57 static void runGCTask() |
| 58 { | 58 { |
| 59 // Don't do anything here because we don't know if this is | 59 // Don't do anything here because we don't know if this is |
| 60 // a nested event loop or not. GCTaskRunner::didProcessTask | 60 // a nested event loop or not. GCTaskRunner::didProcessTask |
| 61 // will enter correct safepoint for us. | 61 // will enter correct safepoint for us. |
| 62 // We are not calling onInterrupted() because that always | 62 // We are not calling onInterrupted() because that always |
| 63 // conservatively enters safepoint with pointers on stack. | 63 // conservatively enters safepoint with pointers on stack. |
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| 115 } | 115 } |
| 116 | 116 |
| 117 private: | 117 private: |
| 118 std::unique_ptr<GCTaskObserver> m_gcTaskObserver; | 118 std::unique_ptr<GCTaskObserver> m_gcTaskObserver; |
| 119 WebThread* m_thread; | 119 WebThread* m_thread; |
| 120 }; | 120 }; |
| 121 | 121 |
| 122 } // namespace blink | 122 } // namespace blink |
| 123 | 123 |
| 124 #endif | 124 #endif |
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