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 32 namespace talk_base { 33 34 // Please don't remove this function. 35 void 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 43 class 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 }; 60 WinsockInitializer g_winsockinit; 61 #endif 62 63 } // namespace talk_base 64
