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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * 3. Neither the name of Google Inc. nor the names of its contributors
15 * may be used to endorse or promote products derived from this
16 * software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
29 */
30
31 #include "config.h"
32 #include "core/dom/Microtask.h"
33
34 #include "bindings/v8/V8PerIsolateData.h"
35 #include "platform/Task.h"
36 #include "public/platform/WebThread.h"
37 #include "wtf/Vector.h"
38 #include <v8.h>
39
40 namespace WebCore {
41
performCheckpoint()42 void Microtask::performCheckpoint()
43 {
44 v8::Isolate* isolate = v8::Isolate::GetCurrent();
45 V8PerIsolateData* isolateData = V8PerIsolateData::from(isolate);
46 ASSERT(isolateData);
47 if (isolateData->recursionLevel() || isolateData->performingMicrotaskCheckpoint())
48 return;
49 isolateData->setPerformingMicrotaskCheckpoint(true);
50 isolate->RunMicrotasks();
51 isolateData->setPerformingMicrotaskCheckpoint(false);
52 }
53
microtaskFunctionCallback(void * data)54 static void microtaskFunctionCallback(void* data)
55 {
56 OwnPtr<blink::WebThread::Task> task = adoptPtr(static_cast<blink::WebThread::Task*>(data));
57 task->run();
58 }
59
enqueueMicrotask(PassOwnPtr<blink::WebThread::Task> callback)60 void Microtask::enqueueMicrotask(PassOwnPtr<blink::WebThread::Task> callback)
61 {
62 v8::Isolate* isolate = v8::Isolate::GetCurrent();
63 isolate->EnqueueMicrotask(µtaskFunctionCallback, callback.leakPtr());
64 }
65
enqueueMicrotask(const Closure & callback)66 void Microtask::enqueueMicrotask(const Closure& callback)
67 {
68 enqueueMicrotask(adoptPtr(new Task(callback)));
69 }
70
71 } // namespace WebCore
72