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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SCRIPT_STREAMER_THREAD_H_
#define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SCRIPT_STREAMER_THREAD_H_
#include <memory>
#include "base/macros.h"
#include "third_party/blink/public/platform/web_thread.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/threading_primitives.h"
#include "v8/include/v8.h"
namespace blink {
class ScriptStreamer;
// A singleton thread for running background tasks for script streaming.
class CORE_EXPORT ScriptStreamerThread {
USING_FAST_MALLOC(ScriptStreamerThread);
public:
static void Init();
static ScriptStreamerThread* Shared();
void PostTask(CrossThreadClosure);
bool IsRunningTask() const {
MutexLocker locker(mutex_);
return running_task_;
}
void TaskDone();
static void RunScriptStreamingTask(
std::unique_ptr<v8::ScriptCompiler::ScriptStreamingTask>,
ScriptStreamer*);
private:
ScriptStreamerThread() : running_task_(false) {}
bool IsRunning() const { return !!thread_; }
WebThread& PlatformThread();
// At the moment, we only use one thread, so we can only stream one script
// at a time. FIXME: Use a thread pool and stream multiple scripts.
std::unique_ptr<WebThread> thread_;
bool running_task_;
mutable Mutex mutex_; // Guards m_runningTask.
DISALLOW_COPY_AND_ASSIGN(ScriptStreamerThread);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_SCRIPT_STREAMER_THREAD_H_
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