mojo/edk/test/scoped_ipc_support.h

// Copyright 2015 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 MOJO_EDK_TEST_SCOPED_IPC_SUPPORT_H_
#define MOJO_EDK_TEST_SCOPED_IPC_SUPPORT_H_

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/synchronization/waitable_event.h"
#include "base/task_runner.h"
#include "mojo/edk/embedder/process_delegate.h"

namespace mojo {
namespace test {

// A simple class that calls |mojo::embedder::InitIPCSupport()| (with
// |ProcessType::NONE|) on construction and |ShutdownIPCSupport()| on
// destruction (or |ShutdownIPCSupportOnIOThread()| if destroyed on the I/O
// thread).
// TODO(vtl): Need master/slave versions.
class ScopedIPCSupport : public embedder::ProcessDelegate {
 public:
  ScopedIPCSupport(scoped_refptr<base::TaskRunner> io_thread_task_runner);
  ~ScopedIPCSupport() override;

 private:
  // ProcessDelegate| implementation:
  // Note: Executed on the I/O thread.
  void OnShutdownComplete() override;

  scoped_refptr<base::TaskRunner> io_thread_task_runner_;

  // Set after shut down.
  base::WaitableEvent event_;

  DISALLOW_COPY_AND_ASSIGN(ScopedIPCSupport);
};

}  // namespace test
}  // namespace mojo

#endif  // MOJO_EDK_TEST_SCOPED_IPC_SUPPORT_H_