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/services/network/public/interfaces/tcp_connected_socket.mojom.h"
  12 #include "net/socket/tcp_socket.h"
  13 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
  14
  15 namespace mojo {
  16
  17 class MojoToNetPendingBuffer;
  18 class NetToMojoPendingBuffer;
  19
  20 class TCPConnectedSocketImpl : public TCPConnectedSocket, public ErrorHandler {
  21  public:
  22   TCPConnectedSocketImpl(scoped_ptr<net::TCPSocket> socket,
  23                          ScopedDataPipeConsumerHandle send_stream,
  24                          ScopedDataPipeProducerHandle receive_stream,
  25                          InterfaceRequest<TCPConnectedSocket> request);
  26   ~TCPConnectedSocketImpl() override;
  27
  28  private:
  29     // ErrorHandler methods:
  30     void OnConnectionError() override;
  31
  32   // "Receiving" in this context means reading from TCPSocket and writing to
  33   // the Mojo receive_stream.
  34   void ReceiveMore();
  35   void OnReceiveStreamReady(MojoResult result);
  36   void DidReceive(bool completed_synchronously, int result);
  37   void ShutdownReceive();
  38   void ListenForReceivePeerClosed();
  39   void OnReceiveDataPipeClosed(MojoResult result);
  40
  41   // "Writing" is reading from the Mojo send_stream and writing to the
  42   // TCPSocket.
  43   void SendMore();
  44   void OnSendStreamReady(MojoResult result);
  45   void DidSend(bool completed_asynchronously, int result);
  46   void ShutdownSend();
  47   void ListenForSendPeerClosed();
  48   void OnSendDataPipeClosed(MojoResult result);
  49
  50   void DeleteIfNeeded();
  51
  52   scoped_ptr<net::TCPSocket> socket_;
  53
  54   // The *stream handles will be null while there is an in-progress transation
  55   // between net and mojo. During this time, the handle will be owned by the
  56   // *PendingBuffer.
  57
  58   // For reading from the network and writing to Mojo pipe.
  59   ScopedDataPipeConsumerHandle send_stream_;
  60   scoped_refptr<NetToMojoPendingBuffer> pending_receive_;
  61   common::HandleWatcher receive_handle_watcher_;
  62
  63   // For reading from the Mojo pipe and writing to the network.
  64   ScopedDataPipeProducerHandle receive_stream_;
  65   scoped_refptr<MojoToNetPendingBuffer> pending_send_;
  66   common::HandleWatcher send_handle_watcher_;
  67
  68   // To bind to the message pipe.
  69   Binding<TCPConnectedSocket> binding_;
  70
  71   base::WeakPtrFactory<TCPConnectedSocketImpl> weak_ptr_factory_;
  72 };
  73
  74 }  // namespace mojo
  75
  76 #endif  // MOJO_SERVICES_NETWORK_TCP_CONNECTED_SOCKET_H_