// Copyright 2018 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_PUBLIC_CPP_PLATFORM_PLATFORM_CHANNEL_ENDPOINT_H_
#define MOJO_PUBLIC_CPP_PLATFORM_PLATFORM_CHANNEL_ENDPOINT_H_

#include "base/component_export.h"
#include "base/macros.h"
#include "mojo/public/cpp/platform/platform_handle.h"

namespace mojo {

// A PlatformHandle with a little extra type information to convey that it's
// a channel endpoint, i.e. a handle that can be used to send or receive
// invitations as |MOJO_INVITATION_TRANSPORT_TYPE_CHANNEL| to a remote
// PlatformChannelEndpoint.
class COMPONENT_EXPORT(MOJO_CPP_PLATFORM) PlatformChannelEndpoint {
 public:
  PlatformChannelEndpoint();
  PlatformChannelEndpoint(PlatformChannelEndpoint&& other);
  explicit PlatformChannelEndpoint(PlatformHandle handle);
  ~PlatformChannelEndpoint();

  PlatformChannelEndpoint& operator=(PlatformChannelEndpoint&& other);

  bool is_valid() const { return handle_.is_valid(); }
  void reset();
  PlatformChannelEndpoint Clone() const;

  const PlatformHandle& platform_handle() const { return handle_; }

  PlatformHandle TakePlatformHandle() WARN_UNUSED_RESULT {
    return std::move(handle_);
  }

 private:
  PlatformHandle handle_;

  DISALLOW_COPY_AND_ASSIGN(PlatformChannelEndpoint);
};

}  // namespace mojo

#endif  // MOJO_PUBLIC_CPP_PLATFORM_PLATFORM_CHANNEL_ENDPOINT_H_