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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/workers/WorkerBackingThread.h" | 5 #include "core/workers/WorkerBackingThread.h" |
6 | 6 |
7 #include "bindings/core/v8/V8Binding.h" | 7 #include "bindings/core/v8/V8Binding.h" |
8 #include "bindings/core/v8/V8GCController.h" | 8 #include "bindings/core/v8/V8GCController.h" |
9 #include "bindings/core/v8/V8IdleTaskRunner.h" | 9 #include "bindings/core/v8/V8IdleTaskRunner.h" |
10 #include "bindings/core/v8/V8Initializer.h" | 10 #include "bindings/core/v8/V8Initializer.h" |
11 #include "bindings/core/v8/V8PerIsolateData.h" | 11 #include "bindings/core/v8/V8PerIsolateData.h" |
12 #include "platform/RuntimeEnabledFeatures.h" | 12 #include "platform/RuntimeEnabledFeatures.h" |
13 #include "platform/ThreadSafeFunctional.h" | 13 #include "platform/ThreadSafeFunctional.h" |
14 #include "platform/WebThreadSupportingGC.h" | 14 #include "platform/WebThreadSupportingGC.h" |
15 #include "public/platform/Platform.h" | 15 #include "public/platform/Platform.h" |
16 #include "public/platform/WebTraceLocation.h" | 16 #include "public/platform/WebTraceLocation.h" |
17 | 17 |
18 namespace blink { | 18 namespace blink { |
19 | 19 |
| 20 #define DEFINE_STATIC_LOCAL_WITH_LOCK(type, name, arguments) \ |
| 21 ASSERT(isolatesMutex().locked()); \ |
| 22 static type& name = *new type arguments |
| 23 |
| 24 static Mutex& isolatesMutex() |
| 25 { |
| 26 DEFINE_THREAD_SAFE_STATIC_LOCAL(Mutex, mutex, new Mutex); |
| 27 return mutex; |
| 28 } |
| 29 |
| 30 static HashSet<v8::Isolate*>& isolates() |
| 31 { |
| 32 DEFINE_STATIC_LOCAL_WITH_LOCK(HashSet<v8::Isolate*>, isolates, ()); |
| 33 return isolates; |
| 34 } |
| 35 |
| 36 static void addWorkerIsolate(v8::Isolate* isolate) |
| 37 { |
| 38 MutexLocker lock(isolatesMutex()); |
| 39 isolates().add(isolate); |
| 40 } |
| 41 |
| 42 static void removeWorkerIsolate(v8::Isolate* isolate) |
| 43 { |
| 44 MutexLocker lock(isolatesMutex()); |
| 45 isolates().remove(isolate); |
| 46 } |
| 47 |
20 WorkerBackingThread::WorkerBackingThread(const char* name, bool shouldCallGCOnSh
utdown) | 48 WorkerBackingThread::WorkerBackingThread(const char* name, bool shouldCallGCOnSh
utdown) |
21 : m_backingThread(WebThreadSupportingGC::create(name)) | 49 : m_backingThread(WebThreadSupportingGC::create(name)) |
22 , m_isOwningThread(true) | 50 , m_isOwningThread(true) |
23 , m_shouldCallGCOnShutdown(shouldCallGCOnShutdown) | 51 , m_shouldCallGCOnShutdown(shouldCallGCOnShutdown) |
24 { | 52 { |
25 } | 53 } |
26 | 54 |
27 WorkerBackingThread::WorkerBackingThread(WebThread* thread, bool shouldCallGCOnS
hutdown) | 55 WorkerBackingThread::WorkerBackingThread(WebThread* thread, bool shouldCallGCOnS
hutdown) |
28 : m_backingThread(WebThreadSupportingGC::createForThread(thread)) | 56 : m_backingThread(WebThreadSupportingGC::createForThread(thread)) |
29 , m_isOwningThread(false) | 57 , m_isOwningThread(false) |
(...skipping 26 matching lines...) Expand all Loading... |
56 if (--m_workerScriptCount > 0) | 84 if (--m_workerScriptCount > 0) |
57 return; | 85 return; |
58 } | 86 } |
59 shutdown(); | 87 shutdown(); |
60 } | 88 } |
61 | 89 |
62 void WorkerBackingThread::initialize() | 90 void WorkerBackingThread::initialize() |
63 { | 91 { |
64 DCHECK(!m_isolate); | 92 DCHECK(!m_isolate); |
65 m_isolate = V8PerIsolateData::initialize(); | 93 m_isolate = V8PerIsolateData::initialize(); |
| 94 addWorkerIsolate(m_isolate); |
66 V8Initializer::initializeWorker(m_isolate); | 95 V8Initializer::initializeWorker(m_isolate); |
67 m_backingThread->initialize(); | 96 m_backingThread->initialize(); |
68 | 97 |
69 OwnPtr<V8IsolateInterruptor> interruptor = adoptPtr(new V8IsolateInterruptor
(m_isolate)); | 98 OwnPtr<V8IsolateInterruptor> interruptor = adoptPtr(new V8IsolateInterruptor
(m_isolate)); |
70 ThreadState::current()->addInterruptor(interruptor.release()); | 99 ThreadState::current()->addInterruptor(interruptor.release()); |
71 ThreadState::current()->registerTraceDOMWrappers(m_isolate, V8GCController::
traceDOMWrappers); | 100 ThreadState::current()->registerTraceDOMWrappers(m_isolate, V8GCController::
traceDOMWrappers); |
72 if (RuntimeEnabledFeatures::v8IdleTasksEnabled()) | 101 if (RuntimeEnabledFeatures::v8IdleTasksEnabled()) |
73 V8PerIsolateData::enableIdleTasks(m_isolate, adoptPtr(new V8IdleTaskRunn
er(backingThread().platformThread().scheduler()))); | 102 V8PerIsolateData::enableIdleTasks(m_isolate, adoptPtr(new V8IdleTaskRunn
er(backingThread().platformThread().scheduler()))); |
74 if (m_isOwningThread) | 103 if (m_isOwningThread) |
75 Platform::current()->didStartWorkerThread(); | 104 Platform::current()->didStartWorkerThread(); |
76 } | 105 } |
77 | 106 |
78 void WorkerBackingThread::shutdown() | 107 void WorkerBackingThread::shutdown() |
79 { | 108 { |
80 if (m_isOwningThread) | 109 if (m_isOwningThread) |
81 Platform::current()->willStopWorkerThread(); | 110 Platform::current()->willStopWorkerThread(); |
82 | 111 |
83 V8PerIsolateData::willBeDestroyed(m_isolate); | 112 V8PerIsolateData::willBeDestroyed(m_isolate); |
84 // TODO(yhirano): Remove this when https://crbug.com/v8/1428 is fixed. | 113 // TODO(yhirano): Remove this when https://crbug.com/v8/1428 is fixed. |
85 if (m_shouldCallGCOnShutdown) { | 114 if (m_shouldCallGCOnShutdown) { |
86 // This statement runs only in tests. | 115 // This statement runs only in tests. |
87 V8GCController::collectAllGarbageForTesting(m_isolate); | 116 V8GCController::collectAllGarbageForTesting(m_isolate); |
88 } | 117 } |
89 m_backingThread->shutdown(); | 118 m_backingThread->shutdown(); |
90 | 119 |
| 120 removeWorkerIsolate(m_isolate); |
91 V8PerIsolateData::destroy(m_isolate); | 121 V8PerIsolateData::destroy(m_isolate); |
92 m_isolate = nullptr; | 122 m_isolate = nullptr; |
93 } | 123 } |
94 | 124 |
| 125 // static |
| 126 void WorkerBackingThread::MemoryPressureNotificationToWorkerThreadIsolates( |
| 127 v8::MemoryPressureLevel level) |
| 128 { |
| 129 MutexLocker lock(isolatesMutex()); |
| 130 for (v8::Isolate* isolate : isolates()) |
| 131 isolate->MemoryPressureNotification(level); |
| 132 } |
| 133 |
95 } // namespace blink | 134 } // namespace blink |
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