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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All Rights Reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 * | |
| 25 */ | |
| 26 | |
| 27 #include "core/dom/MainThreadTaskRunner.h" | |
| 28 | |
| 29 #include "core/dom/ExecutionContext.h" | |
| 30 #include "core/dom/ExecutionContextTask.h" | |
| 31 #include "core/inspector/InspectorInstrumentation.h" | |
| 32 #include "platform/CrossThreadFunctional.h" | |
| 33 #include "public/platform/Platform.h" | |
| 34 #include "wtf/Assertions.h" | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 MainThreadTaskRunner::MainThreadTaskRunner(ExecutionContext* context) | |
| 39 : m_context(context), | |
| 40 m_weakFactory(this), | |
| 41 // Bind a WeakPtr now to avoid data races creating a WeakPtr inside | |
| 42 // postTask. | |
| 43 m_weakPtr(m_weakFactory.createWeakPtr()) {} | |
| 44 | |
| 45 MainThreadTaskRunner::~MainThreadTaskRunner() {} | |
| 46 | |
| 47 void MainThreadTaskRunner::postTask(const WebTraceLocation& location, | |
| 48 std::unique_ptr<ExecutionContextTask> task, | |
| 49 const String& taskNameForInstrumentation) { | |
| 50 if (!taskNameForInstrumentation.isEmpty()) | |
| 51 InspectorInstrumentation::asyncTaskScheduled( | |
| 52 m_context, taskNameForInstrumentation, task.get()); | |
| 53 const bool instrumenting = !taskNameForInstrumentation.isEmpty(); | |
| 54 Platform::current()->mainThread()->getWebTaskRunner()->postTask( | |
| 55 location, crossThreadBind(&MainThreadTaskRunner::perform, m_weakPtr, | |
| 56 passed(std::move(task)), instrumenting)); | |
| 57 } | |
| 58 | |
| 59 void MainThreadTaskRunner::perform(std::unique_ptr<ExecutionContextTask> task, | |
| 60 bool instrumenting) { | |
| 61 // If the owner m_context is about to be swept then it | |
| 62 // is no longer safe to access. | |
| 63 if (ThreadHeap::willObjectBeLazilySwept(m_context.get())) | |
| 64 return; | |
| 65 | |
| 66 InspectorInstrumentation::AsyncTask asyncTask(m_context, task.get(), | |
| 67 instrumenting); | |
| 68 task->performTask(m_context); | |
| 69 } | |
| 70 | |
| 71 } // namespace blink | |
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Chromium Code Reviews
Issue 2543723005:
Remove MainThreadTaskRunner (Closed)
