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- // Copyright 2020 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 DEVICE_BLUETOOTH_SOCKET_H_
- #define DEVICE_BLUETOOTH_SOCKET_H_
- #include <memory>
- #include <string>
- #include "base/memory/ref_counted.h"
- #include "base/memory/weak_ptr.h"
- #include "device/bluetooth/bluetooth_socket.h"
- #include "device/bluetooth/public/mojom/adapter.mojom.h"
- #include "mojo/public/cpp/system/data_pipe.h"
- #include "mojo/public/cpp/system/simple_watcher.h"
- namespace net {
- class IOBuffer;
- } // namespace net
- namespace bluetooth {
- // Implementation of Mojo Socket in
- // device/bluetooth/public/mojom/adapter.mojom.
- // It handles requests to interact with a Socket.
- // Uses the platform abstraction of //device/bluetooth.
- // An instance of this class is constructed by Adapter and strongly bound to its
- // MessagePipe. When the instance is destroyed, the underlying BluetoothSocket
- // is destroyed.
- class Socket : public mojom::Socket {
- public:
- Socket(scoped_refptr<device::BluetoothSocket> bluetooth_socket,
- mojo::ScopedDataPipeProducerHandle receive_stream,
- mojo::ScopedDataPipeConsumerHandle send_stream);
- ~Socket() override;
- Socket(const Socket&) = delete;
- Socket& operator=(const Socket&) = delete;
- // mojom::Socket:
- void Disconnect(DisconnectCallback callback) override;
- private:
- // "Receiving" in this context means receiving data from |bluetooth_socket_|
- // via BluetoothSocket::Receive() and *writing* it to |receive_stream_|.
- void OnReceiveStreamWritable(MojoResult result);
- void ShutdownReceive();
- void ReceiveMore();
- void OnBluetoothSocketReceive(void* pending_write_buffer,
- int num_bytes_received,
- scoped_refptr<net::IOBuffer> io_buffer);
- void OnBluetoothSocketReceiveError(
- device::BluetoothSocket::ErrorReason error_reason,
- const std::string& error_message);
- // "Sending" in this context means *reading* data from |send_stream_| and
- // sending it over the |bluetooth_socket_| via BluetoothSocket::Send().
- void OnSendStreamReadable(MojoResult result);
- void ShutdownSend();
- void SendMore();
- void OnBluetoothSocketSend(int num_bytes_sent);
- void OnBluetoothSocketSendError(const std::string& error_message);
- scoped_refptr<device::BluetoothSocket> bluetooth_socket_;
- mojo::ScopedDataPipeProducerHandle receive_stream_;
- mojo::ScopedDataPipeConsumerHandle send_stream_;
- mojo::SimpleWatcher receive_stream_watcher_;
- mojo::SimpleWatcher send_stream_watcher_;
- base::WeakPtrFactory<Socket> weak_ptr_factory_{this};
- };
- } // namespace bluetooth
- #endif // DEVICE_BLUETOOTH_SOCKET_H_
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