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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 |
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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> |
36 | 37 |
37 namespace WebCore { | 38 namespace WebCore { |
38 | 39 |
39 typedef Vector<MicrotaskCallback> MicrotaskQueue; | |
40 | |
41 static MicrotaskQueue& microtaskQueue() | |
42 { | |
43 DEFINE_STATIC_LOCAL(MicrotaskQueue, microtaskQueue, ()); | |
44 return microtaskQueue; | |
45 } | |
46 | |
47 void Microtask::performCheckpoint() | 40 void Microtask::performCheckpoint() |
48 { | 41 { |
49 V8PerIsolateData* isolateData = V8PerIsolateData::current(); | 42 v8::Isolate* isolate = v8::Isolate::GetCurrent(); |
| 43 V8PerIsolateData* isolateData = V8PerIsolateData::from(isolate); |
50 ASSERT(isolateData); | 44 ASSERT(isolateData); |
51 if (isolateData->performingMicrotaskCheckpoint()) | 45 if (isolateData->performingMicrotaskCheckpoint()) |
52 return; | 46 return; |
53 isolateData->setPerformingMicrotaskCheckpoint(true); | 47 isolateData->setPerformingMicrotaskCheckpoint(true); |
54 | 48 |
55 while (!microtaskQueue().isEmpty()) { | 49 v8::HandleScope handleScope(isolate); |
56 Vector<MicrotaskCallback> microtasks; | 50 v8::Local<v8::Context> context = isolateData->ensureDomInJSContext(); |
57 microtasks.swap(microtaskQueue()); | 51 v8::Context::Scope scope(context); |
58 for (size_t i = 0; i < microtasks.size(); ++i) { | 52 v8::V8::RunMicrotasks(isolate); |
59 microtasks[i](); | |
60 } | |
61 } | |
62 | 53 |
63 isolateData->setPerformingMicrotaskCheckpoint(false); | 54 isolateData->setPerformingMicrotaskCheckpoint(false); |
64 } | 55 } |
65 | 56 |
| 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 |
66 void Microtask::enqueueMicrotask(MicrotaskCallback callback) | 67 void Microtask::enqueueMicrotask(MicrotaskCallback callback) |
67 { | 68 { |
68 microtaskQueue().append(callback); | 69 v8::Isolate* isolate = v8::Isolate::GetCurrent(); |
| 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)); |
69 } | 78 } |
70 | 79 |
71 } // namespace WebCore | 80 } // namespace WebCore |
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