blob: 5188cd0199610c6776d292dc2cfe6e04c76144b1 [file] [log] [blame]
// 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.
#include <stdint.h>
#include <memory>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "build/build_config.h"
#include "ipc/ipc.mojom.h"
#include "ipc/ipc_channel.h"
#include "ipc/ipc_listener.h"
#include "mojo/public/cpp/bindings/associated_group.h"
#include "mojo/public/cpp/system/message_pipe.h"
namespace IPC {
// MojoBootstrap establishes a pair of associated interfaces between two
// processes in Chrome.
// Clients should implement MojoBootstrap::Delegate to get the associated pipes
// from MojoBootstrap object.
// This lives on IO thread other than Create(), which can be called from
// UI thread as Channel::Create() can be.
class IPC_EXPORT MojoBootstrap {
class Delegate {
virtual ~Delegate() {}
virtual void OnPipesAvailable(mojom::ChannelAssociatedPtr sender,
mojom::ChannelAssociatedRequest receiver) = 0;
virtual ~MojoBootstrap() {}
// Create the MojoBootstrap instance, using |handle| as the message pipe, in
// mode as specified by |mode|. The result is passed to |delegate|.
static std::unique_ptr<MojoBootstrap> Create(
mojo::ScopedMessagePipeHandle handle,
Channel::Mode mode,
Delegate* delegate,
const scoped_refptr<base::SingleThreadTaskRunner>& ipc_task_runner);
// Start the handshake over the underlying message pipe.
virtual void Connect() = 0;
// Stop transmitting messages and start queueing them instead.
virtual void Pause() = 0;
// Stop queuing new messages and start transmitting them instead.
virtual void Unpause() = 0;
// Flush outgoing messages which were queued before Start().
virtual void Flush() = 0;
virtual mojo::AssociatedGroup* GetAssociatedGroup() = 0;
} // namespace IPC