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/application/public/cpp/app_lifetime_helper.h"
  11 #include "mojo/message_pump/handle_watcher.h"
  12 #include "mojo/services/network/public/interfaces/tcp_connected_socket.mojom.h"
  13 #include "net/socket/tcp_socket.h"
  14 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
  15
  16 namespace mojo {
  17
  18 class MojoToNetPendingBuffer;
  19 class NetToMojoPendingBuffer;
  20
  21 class TCPConnectedSocketImpl : public TCPConnectedSocket {
  22  public:
  23   TCPConnectedSocketImpl(scoped_ptr<net::TCPSocket> socket,
  24                          ScopedDataPipeConsumerHandle send_stream,
  25                          ScopedDataPipeProducerHandle receive_stream,
  26                          InterfaceRequest<TCPConnectedSocket> request,
  27                          scoped_ptr<mojo::AppRefCount> app_refcount);
  28   ~TCPConnectedSocketImpl() override;
  29
  30  private:
  31   void OnConnectionError();
  32
  33   // "Receiving" in this context means reading from TCPSocket and writing to
  34   // the Mojo receive_stream.
  35   void ReceiveMore();
  36   void OnReceiveStreamReady(MojoResult result);
  37   void DidReceive(bool completed_synchronously, int result);
  38   void ShutdownReceive();
  39   void ListenForReceivePeerClosed();
  40   void OnReceiveDataPipeClosed(MojoResult result);
  41
  42   // "Writing" is reading from the Mojo send_stream and writing to the
  43   // TCPSocket.
  44   void SendMore();
  45   void OnSendStreamReady(MojoResult result);
  46   void DidSend(bool completed_asynchronously, int result);
  47   void ShutdownSend();
  48   void ListenForSendPeerClosed();
  49   void OnSendDataPipeClosed(MojoResult result);
  50
  51   void DeleteIfNeeded();
  52
  53   scoped_ptr<net::TCPSocket> socket_;
  54
  55   // The *stream handles will be null while there is an in-progress transation
  56   // between net and mojo. During this time, the handle will be owned by the
  57   // *PendingBuffer.
  58
  59   // For reading from the network and writing to Mojo pipe.
  60   ScopedDataPipeConsumerHandle send_stream_;
  61   scoped_refptr<NetToMojoPendingBuffer> pending_receive_;
  62   common::HandleWatcher receive_handle_watcher_;
  63
  64   // For reading from the Mojo pipe and writing to the network.
  65   ScopedDataPipeProducerHandle receive_stream_;
  66   scoped_refptr<MojoToNetPendingBuffer> pending_send_;
  67   common::HandleWatcher send_handle_watcher_;
  68
  69   // To bind to the message pipe.
  70   Binding<TCPConnectedSocket> binding_;
  71
  72   scoped_ptr<mojo::AppRefCount> app_refcount_;
  73
  74   base::WeakPtrFactory<TCPConnectedSocketImpl> weak_ptr_factory_;
  75 };
  76
  77 }  // namespace mojo
  78
  79 #endif  // MOJO_SERVICES_NETWORK_TCP_CONNECTED_SOCKET_H_