1/*
2 * libjingle
3 * Copyright 2009, 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#include "talk/base/win32socketinit.h"
29
30#include "talk/base/win32.h"
31
32namespace talk_base {
33
34// Please don't remove this function.
35void EnsureWinsockInit() {
36  // The default implementation uses a global initializer, so WSAStartup
37  // happens at module load time.  Thus we don't need to do anything here.
38  // The hook is provided so that a client that statically links with
39  // libjingle can override it, to provide its own initialization.
40}
41
42#ifdef WIN32
43class WinsockInitializer {
44 public:
45  WinsockInitializer() {
46    WSADATA wsaData;
47    WORD wVersionRequested = MAKEWORD(1, 0);
48    err_ = WSAStartup(wVersionRequested, &wsaData);
49  }
50  ~WinsockInitializer() {
51    if (!err_)
52      WSACleanup();
53  }
54  int error() {
55    return err_;
56  }
57 private:
58  int err_;
59};
60WinsockInitializer g_winsockinit;
61#endif
62
63}  // namespace talk_base
64