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// Copyright (c) 2006-2008 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_BASE_TCP_CONNECTING_SOCKET_H_
#define NET_BASE_TCP_CONNECTING_SOCKET_H_
#include <deque>
#include <map>
#include <string>
#include "base/scoped_ptr.h"
#include "base/timer.h"
#include "net/base/address_list.h"
#include "net/base/client_socket_pool.h"
#include "net/base/host_resolver.h"
namespace net {
class ClientSocketFactory;
class ClientSocketPoolBase;
// TCPConnectingSocket handles host resolution and socket connection for a TCP
// socket.
class TCPConnectingSocket {
public:
TCPConnectingSocket(const std::string& group_name,
const std::string& host,
int port,
const ClientSocketHandle* handle,
CompletionCallback* callback,
ClientSocketFactory* client_socket_factory,
const scoped_refptr<ClientSocketPoolBase>& pool);
~TCPConnectingSocket();
// Begins the host resolution and the TCP connect. Returns OK on success
// and ERR_IO_PENDING if it cannot immediately service the request.
// Otherwise, it returns a net error code.
int Connect();
// TODO(willchan): Delete this function once we decouple connecting sockets
// from requests, since we'll keep around the idle connected socket.
// Called by the ClientSocketPoolBase to cancel this TCPConnectingSocket.
// Only necessary if a ClientSocketHandle is reused.
void Cancel();
private:
// Handles asynchronous completion of IO. |result| represents the result of
// the IO operation.
void OnIOComplete(int result);
// Handles both asynchronous and synchronous completion of IO. |result|
// represents the result of the IO operation. |synchronous| indicates
// whether or not the previous IO operation completed synchronously or
// asynchronously. OnIOCompleteInternal returns the result of the next IO
// operation that executes, or just the value of |result|.
int OnIOCompleteInternal(int result, bool synchronous);
const std::string group_name_;
const std::string host_;
const int port_;
const ClientSocketHandle* const handle_;
CompletionCallback* const user_callback_;
ClientSocketFactory* const client_socket_factory_;
CompletionCallbackImpl<TCPConnectingSocket> callback_;
scoped_ptr<ClientSocket> socket_;
const scoped_refptr<ClientSocketPoolBase> pool_;
HostResolver resolver_;
AddressList addresses_;
bool canceled_;
// The time the Connect() method was called (if it got called).
base::Time connect_start_time_;
DISALLOW_COPY_AND_ASSIGN(TCPConnectingSocket);
};
} // namespace net
#endif // NET_BASE_TCP_CONNECTING_SOCKET_H_
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