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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 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 | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. 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 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
(...skipping 15 matching lines...) Expand all Loading... |
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 #include "config.h" | 31 #include "config.h" |
32 #include "core/dom/Microtask.h" | 32 #include "core/dom/Microtask.h" |
33 | 33 |
34 #include "bindings/v8/V8PerIsolateData.h" | 34 #include "bindings/v8/V8PerIsolateData.h" |
35 #include "wtf/Vector.h" | 35 #include "wtf/Vector.h" |
36 #include <v8.h> | |
37 | 36 |
38 namespace WebCore { | 37 namespace WebCore { |
39 | 38 |
| 39 typedef Vector<MicrotaskCallback> MicrotaskQueue; |
| 40 |
| 41 static MicrotaskQueue& microtaskQueue() |
| 42 { |
| 43 DEFINE_STATIC_LOCAL(MicrotaskQueue, microtaskQueue, ()); |
| 44 return microtaskQueue; |
| 45 } |
| 46 |
40 void Microtask::performCheckpoint() | 47 void Microtask::performCheckpoint() |
41 { | 48 { |
42 v8::Isolate* isolate = v8::Isolate::GetCurrent(); | 49 V8PerIsolateData* isolateData = V8PerIsolateData::current(); |
43 V8PerIsolateData* isolateData = V8PerIsolateData::from(isolate); | |
44 ASSERT(isolateData); | 50 ASSERT(isolateData); |
45 if (isolateData->recursionLevel() || isolateData->performingMicrotaskCheckpo
int()) | 51 if (isolateData->recursionLevel() || isolateData->performingMicrotaskCheckpo
int()) |
46 return; | 52 return; |
47 isolateData->setPerformingMicrotaskCheckpoint(true); | 53 isolateData->setPerformingMicrotaskCheckpoint(true); |
48 | 54 |
49 v8::HandleScope handleScope(isolate); | 55 while (!microtaskQueue().isEmpty()) { |
50 v8::Local<v8::Context> context = isolateData->ensureDomInJSContext(); | 56 Vector<MicrotaskCallback> microtasks; |
51 v8::Context::Scope scope(context); | 57 microtasks.swap(microtaskQueue()); |
52 v8::V8::RunMicrotasks(isolate); | 58 for (size_t i = 0; i < microtasks.size(); ++i) { |
| 59 microtasks[i](); |
| 60 } |
| 61 } |
53 | 62 |
54 isolateData->setPerformingMicrotaskCheckpoint(false); | 63 isolateData->setPerformingMicrotaskCheckpoint(false); |
55 } | 64 } |
56 | 65 |
57 COMPILE_ASSERT(sizeof(void*) == sizeof(MicrotaskCallback), VoidPtrAndFunctionPtr
AreSameSize); | |
58 | |
59 static void microtaskFunctionCallback(const v8::FunctionCallbackInfo<v8::Value>&
info) | |
60 { | |
61 MicrotaskCallback callback = | |
62 reinterpret_cast<MicrotaskCallback>(reinterpret_cast<intptr_t>( | |
63 info.Data().As<v8::External>()->Value())); | |
64 (*callback)(); | |
65 } | |
66 | |
67 void Microtask::enqueueMicrotask(MicrotaskCallback callback) | 66 void Microtask::enqueueMicrotask(MicrotaskCallback callback) |
68 { | 67 { |
69 v8::Isolate* isolate = v8::Isolate::GetCurrent(); | 68 microtaskQueue().append(callback); |
70 V8PerIsolateData* isolateData = V8PerIsolateData::from(isolate); | |
71 v8::HandleScope handleScope(isolate); | |
72 v8::Local<v8::Context> context = isolateData->ensureDomInJSContext(); | |
73 v8::Context::Scope scope(context); | |
74 v8::Local<v8::External> handler = | |
75 v8::External::New(isolate, | |
76 reinterpret_cast<void*>(reinterpret_cast<intptr_t>(callback))); | |
77 v8::V8::EnqueueMicrotask(isolate, v8::Function::New(isolate, µtaskFunct
ionCallback, handler)); | |
78 } | 69 } |
79 | 70 |
80 } // namespace WebCore | 71 } // namespace WebCore |
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