Windows only: Move client socket functionality from TCPClientSocket into TCPSocket.

net/socket/tcp_client_socket_win.h

-// Copyright (c) 2012 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 NET_SOCKET_TCP_CLIENT_SOCKET_WIN_H_
-#define NET_SOCKET_TCP_CLIENT_SOCKET_WIN_H_
-
-#include <winsock2.h>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/threading/non_thread_safe.h"
-#include "net/base/address_list.h"
-#include "net/base/completion_callback.h"
-#include "net/base/net_log.h"
-#include "net/socket/stream_socket.h"
-
-namespace net {
-
-class BoundNetLog;
-
-class NET_EXPORT TCPClientSocketWin : public StreamSocket,
-                                      NON_EXPORTED_BASE(base::NonThreadSafe) {
- public:
-  // The IP address(es) and port number to connect to.  The TCP socket will try
-  // each IP address in the list until it succeeds in establishing a
-  // connection.
-  TCPClientSocketWin(const AddressList& addresses,
-                     net::NetLog* net_log,
-                     const net::NetLog::Source& source);
-
-  virtual ~TCPClientSocketWin();
-
-  // AdoptSocket causes the given, connected socket to be adopted as a TCP
-  // socket. This object must not be connected. This object takes ownership of
-  // the given socket and then acts as if Connect() had been called. This
-  // function is used by TCPServerSocket() to adopt accepted connections
-  // and for testing.
-  int AdoptSocket(SOCKET socket);
-
-  // Binds the socket to a local IP address and port.
-  int Bind(const IPEndPoint& address);
-
-  // StreamSocket implementation.
-  virtual int Connect(const CompletionCallback& callback);
-  virtual void Disconnect();
-  virtual bool IsConnected() const;
-  virtual bool IsConnectedAndIdle() const;
-  virtual int GetPeerAddress(IPEndPoint* address) const;
-  virtual int GetLocalAddress(IPEndPoint* address) const;
-  virtual const BoundNetLog& NetLog() const { return net_log_; }
-  virtual void SetSubresourceSpeculation();
-  virtual void SetOmniboxSpeculation();
-  virtual bool WasEverUsed() const;
-  virtual bool UsingTCPFastOpen() const;
-  virtual bool WasNpnNegotiated() const OVERRIDE;
-  virtual NextProto GetNegotiatedProtocol() const OVERRIDE;
-  virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE;
-
-  // Socket implementation.
-  // Multiple outstanding requests are not supported.
-  // Full duplex mode (reading and writing at the same time) is supported
-  virtual int Read(IOBuffer* buf, int buf_len,
-                   const CompletionCallback& callback);
-  virtual int Write(IOBuffer* buf, int buf_len,
-                    const CompletionCallback& callback);
-
-  virtual bool SetReceiveBufferSize(int32 size);
-  virtual bool SetSendBufferSize(int32 size);
-
-  virtual bool SetKeepAlive(bool enable, int delay);
-  virtual bool SetNoDelay(bool no_delay);
-
- private:
-  // State machine for connecting the socket.
-  enum ConnectState {
-    CONNECT_STATE_CONNECT,
-    CONNECT_STATE_CONNECT_COMPLETE,
-    CONNECT_STATE_NONE,
-  };
-
-  class Core;
-
-  // State machine used by Connect().
-  int DoConnectLoop(int result);
-  int DoConnect();
-  int DoConnectComplete(int result);
-
-  // Helper used by Disconnect(), which disconnects minus the logging and
-  // resetting of current_address_index_.
-  void DoDisconnect();
-
-  // Returns true if a Connect() is in progress.
-  bool waiting_connect() const {
-    return next_connect_state_ != CONNECT_STATE_NONE;
-  }
-
-  // Called after Connect() has completed with |net_error|.
-  void LogConnectCompletion(int net_error);
-
-  int DoRead(IOBuffer* buf, int buf_len, const CompletionCallback& callback);
-  void DoReadCallback(int rv);
-  void DoWriteCallback(int rv);
-  void DidCompleteConnect();
-  void DidCompleteWrite();
-  void DidSignalRead();
-
-  SOCKET socket_;
-
-  // Local IP address and port we are bound to. Set to NULL if Bind()
-  // was't called (in that cases OS chooses address/port).
-  scoped_ptr<IPEndPoint> bind_address_;
-
-  // Stores bound socket between Bind() and Connect() calls.
-  SOCKET bound_socket_;
-
-  // The list of addresses we should try in order to establish a connection.
-  AddressList addresses_;
-
-  // Where we are in above list. Set to -1 if uninitialized.
-  int current_address_index_;
-
-  // The various states that the socket could be in.
-  bool waiting_read_;
-  bool waiting_write_;
-
-  // The core of the socket that can live longer than the socket itself. We pass
-  // resources to the Windows async IO functions and we have to make sure that
-  // they are not destroyed while the OS still references them.
-  scoped_refptr<Core> core_;
-
-  // External callback; called when connect or read is complete.
-  CompletionCallback read_callback_;
-
-  // External callback; called when write is complete.
-  CompletionCallback write_callback_;
-
-  // The next state for the Connect() state machine.
-  ConnectState next_connect_state_;
-
-  // The OS error that CONNECT_STATE_CONNECT last completed with.
-  int connect_os_error_;
-
-  BoundNetLog net_log_;
-
-  // This socket was previously disconnected and has not been re-connected.
-  bool previously_disconnected_;
-
-  // Record of connectivity and transmissions, for use in speculative connection
-  // histograms.
-  UseHistory use_history_;
-
-  DISALLOW_COPY_AND_ASSIGN(TCPClientSocketWin);
-};
-
-}  // namespace net
-
-#endif  // NET_SOCKET_TCP_CLIENT_SOCKET_WIN_H_