1/*
2 * libjingle
3 * Copyright 2004--2005, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_BASE_WIN32SOCKETSERVER_H_
29#define TALK_BASE_WIN32SOCKETSERVER_H_
30
31#ifdef WIN32
32#include "talk/base/asyncsocket.h"
33#include "talk/base/criticalsection.h"
34#include "talk/base/messagequeue.h"
35#include "talk/base/socketserver.h"
36#include "talk/base/socketfactory.h"
37#include "talk/base/socket.h"
38#include "talk/base/thread.h"
39#include "talk/base/win32window.h"
40
41namespace talk_base {
42
43///////////////////////////////////////////////////////////////////////////////
44// Win32Socket
45///////////////////////////////////////////////////////////////////////////////
46
47class Win32Socket : public AsyncSocket {
48 public:
49  Win32Socket();
50  virtual ~Win32Socket();
51
52  bool CreateT(int type);
53
54  int Attach(SOCKET s);
55  void SetTimeout(int ms);
56
57  // AsyncSocket Interface
58  virtual SocketAddress GetLocalAddress() const;
59  virtual SocketAddress GetRemoteAddress() const;
60  virtual int Bind(const SocketAddress& addr);
61  virtual int Connect(const SocketAddress& addr);
62  virtual int Send(const void *pv, size_t cb);
63  virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr);
64  virtual int Recv(void *pv, size_t cb);
65  virtual int RecvFrom(void *pv, size_t cb, SocketAddress *paddr);
66  virtual int Listen(int backlog);
67  virtual Win32Socket *Accept(SocketAddress *paddr);
68  virtual int Close();
69  virtual int GetError() const;
70  virtual void SetError(int error);
71  virtual ConnState GetState() const;
72  virtual int EstimateMTU(uint16* mtu);
73  virtual int GetOption(Option opt, int* value);
74  virtual int SetOption(Option opt, int value);
75
76 private:
77  bool SetAsync(int events);
78  int DoConnect(const SocketAddress& addr);
79  bool HandleClosed(int close_error);
80  void PostClosed();
81  void UpdateLastError();
82  static int TranslateOption(Option opt, int* slevel, int* sopt);
83
84  void OnSocketNotify(SOCKET socket, int event, int error);
85  void OnDnsNotify(HANDLE task, int error);
86
87  SOCKET socket_;
88  int error_;
89  ConnState state_;
90  SocketAddress addr_;         // address that we connected to (see DoConnect)
91  uint32 connect_time_;
92  bool closing_;
93  int close_error_;
94
95  class EventSink;
96  friend class EventSink;
97  EventSink * sink_;
98
99  struct DnsLookup;
100  DnsLookup * dns_;
101};
102
103///////////////////////////////////////////////////////////////////////////////
104// Win32SocketServer
105///////////////////////////////////////////////////////////////////////////////
106
107class Win32SocketServer : public SocketServer {
108 public:
109  explicit Win32SocketServer(MessageQueue *message_queue);
110  virtual ~Win32SocketServer();
111
112  // SocketServer Interface
113  virtual Socket* CreateSocket(int type);
114  virtual AsyncSocket* CreateAsyncSocket(int type);
115  virtual void SetMessageQueue(MessageQueue* queue);
116  virtual bool Wait(int cms, bool process_io);
117  virtual void WakeUp();
118
119  void Pump();
120
121  HWND handle() { return wnd_.handle(); }
122
123 private:
124  class MessageWindow : public Win32Window {
125   public:
126    explicit MessageWindow(Win32SocketServer* ss) : ss_(ss) {}
127   private:
128    virtual bool OnMessage(UINT msg, WPARAM wp, LPARAM lp, LRESULT& result);
129    Win32SocketServer* ss_;
130  };
131
132  static const TCHAR kWindowName[];
133  MessageQueue *message_queue_;
134  MessageWindow wnd_;
135  CriticalSection cs_;
136  bool posted_;
137};
138
139///////////////////////////////////////////////////////////////////////////////
140// Win32Thread. Automatically pumps Windows messages.
141///////////////////////////////////////////////////////////////////////////////
142
143class Win32Thread : public Thread {
144 public:
145  Win32Thread() : ss_(this), id_(0) {
146    set_socketserver(&ss_);
147  }
148  virtual ~Win32Thread() {
149    set_socketserver(NULL);
150  }
151  virtual void Run() {
152    MSG msg;
153    id_ = GetCurrentThreadId();
154    while (GetMessage(&msg, NULL, 0, 0)) {
155      TranslateMessage(&msg);
156      DispatchMessage(&msg);
157    }
158    id_ = 0;
159  }
160  virtual void Quit() {
161    PostThreadMessage(id_, WM_QUIT, 0, 0);
162  }
163 private:
164  Win32SocketServer ss_;
165  DWORD id_;
166};
167
168///////////////////////////////////////////////////////////////////////////////
169
170}  // namespace talk_base
171
172#endif  // WIN32
173
174#endif  // TALK_BASE_WIN32SOCKETSERVER_H_
175