// 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.chromium file.

#ifndef SHELL_COMMON_GIN_HELPER_LOCKER_H_

#define SHELL_COMMON_GIN_HELPER_LOCKER_H_

#include <memory>

#include "base/macros.h"

#include "v8/include/v8.h"

namespace gin_helper {

// Only lock when lockers are used in current thread.

class Locker {

public:

explicit Locker(v8::Isolate* isolate);

~Locker();

// Returns whether current process is browser process, currently we detect it

// by checking whether current has used V8 Lock, but it might be a bad idea.

static inline bool IsBrowserProcess() { return v8::Locker::IsActive(); }

private:

void* operator new(size_t size);

void operator delete(void*, size_t);

std::unique_ptr<v8::Locker> locker_;

DISALLOW_COPY_AND_ASSIGN(Locker);

};

} // namespace gin_helper

#endif // SHELL_COMMON_GIN_HELPER_LOCKER_H_