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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Google Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "core/dom/Microtask.h"
#include "bindings/core/v8/V8PerIsolateData.h"
#include "bindings/core/v8/V8RecursionScope.h"
#include "platform/ScriptForbiddenScope.h"
#include "platform/Task.h"
#include "public/platform/WebThread.h"
#include <v8.h>
namespace blink {
void Microtask::performCheckpoint()
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
V8PerIsolateData* isolateData = V8PerIsolateData::from(isolate);
ASSERT(isolateData);
if (isolateData->recursionLevel() || isolateData->performingMicrotaskCheckpoint() || isolateData->destructionPending() || ScriptForbiddenScope::isScriptForbidden())
return;
isolateData->setPerformingMicrotaskCheckpoint(true);
{
// Ensure that end-of-task-or-microtask actions are performed.
V8RecursionScope recursionScope(isolate);
isolate->RunMicrotasks();
}
isolateData->setPerformingMicrotaskCheckpoint(false);
}
bool Microtask::performingCheckpoint(v8::Isolate* isolate)
{
return V8PerIsolateData::from(isolate)->performingMicrotaskCheckpoint();
}
static void microtaskFunctionCallback(void* data)
{
OwnPtr<WebThread::Task> task = adoptPtr(static_cast<WebThread::Task*>(data));
task->run();
}
void Microtask::enqueueMicrotask(PassOwnPtr<WebThread::Task> callback)
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
isolate->EnqueueMicrotask(µtaskFunctionCallback, callback.leakPtr());
}
void Microtask::enqueueMicrotask(PassOwnPtr<Closure> callback)
{
enqueueMicrotask(adoptPtr(new Task(callback)));
}
} // namespace blink
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