mojo/services/network/tcp_connected_socket_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_SERVICES_NETWORK_TCP_CONNECTED_SOCKET_H_
   6 #define MOJO_SERVICES_NETWORK_TCP_CONNECTED_SOCKET_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "mojo/common/handle_watcher.h"
  11 #include "mojo/public/cpp/bindings/interface_impl.h"
  12 #include "mojo/services/network/public/interfaces/tcp_connected_socket.mojom.h"
  13 #include "net/socket/tcp_socket.h"
  14
  15 namespace mojo {
  16
  17 class MojoToNetPendingBuffer;
  18 class NetToMojoPendingBuffer;
  19
  20 class TCPConnectedSocketImpl : public InterfaceImpl<TCPConnectedSocket> {
  21  public:
  22   TCPConnectedSocketImpl(scoped_ptr<net::TCPSocket> socket,
  23                          ScopedDataPipeConsumerHandle send_stream,
  24                          ScopedDataPipeProducerHandle receive_stream);
  25   ~TCPConnectedSocketImpl() override;
  26
  27  private:
  28   // "Receiving" in this context means reading from TCPSocket and writing to
  29   // the Mojo receive_stream.
  30   void ReceiveMore();
  31   void OnReceiveStreamReady(MojoResult result);
  32   void DidReceive(bool completed_synchronously, int result);
  33
  34   // "Writing" is reading from the Mojo send_stream and writing to the
  35   // TCPSocket.
  36   void SendMore();
  37   void OnSendStreamReady(MojoResult result);
  38   void DidSend(bool completed_asynchronously, int result);
  39
  40   scoped_ptr<net::TCPSocket> socket_;
  41
  42   // The *stream handles will be null while there is an in-progress transation
  43   // between net and mojo. During this time, the handle will be owned by the
  44   // *PendingBuffer.
  45
  46   // For reading from the network and writing to Mojo pipe.
  47   ScopedDataPipeConsumerHandle send_stream_;
  48   common::HandleWatcher receive_handle_watcher_;
  49   scoped_refptr<NetToMojoPendingBuffer> pending_receive_;
  50
  51   // For reading from the Mojo pipe and writing to the network.
  52   ScopedDataPipeProducerHandle receive_stream_;
  53   common::HandleWatcher send_handle_watcher_;
  54   scoped_refptr<MojoToNetPendingBuffer> pending_send_;
  55
  56   base::WeakPtrFactory<TCPConnectedSocketImpl> weak_ptr_factory_;
  57 };
  58
  59 }  // namespace mojo
  60
  61 #endif  // MOJO_SERVICES_NETWORK_TCP_CONNECTED_SOCKET_H_