|  | /* | 
|  | *  Copyright 2009 The WebRTC Project Authors. All rights reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #include "webrtc/base/win32socketinit.h" | 
|  |  | 
|  | #include "webrtc/base/win32.h" | 
|  |  | 
|  | namespace rtc { | 
|  |  | 
|  | // Please don't remove this function. | 
|  | void EnsureWinsockInit() { | 
|  | // The default implementation uses a global initializer, so WSAStartup | 
|  | // happens at module load time.  Thus we don't need to do anything here. | 
|  | // The hook is provided so that a client that statically links with | 
|  | // libjingle can override it, to provide its own initialization. | 
|  | } | 
|  |  | 
|  | #if defined(WEBRTC_WIN) | 
|  | class WinsockInitializer { | 
|  | public: | 
|  | WinsockInitializer() { | 
|  | WSADATA wsaData; | 
|  | WORD wVersionRequested = MAKEWORD(1, 0); | 
|  | err_ = WSAStartup(wVersionRequested, &wsaData); | 
|  | } | 
|  | ~WinsockInitializer() { | 
|  | if (!err_) | 
|  | WSACleanup(); | 
|  | } | 
|  | int error() { | 
|  | return err_; | 
|  | } | 
|  | private: | 
|  | int err_; | 
|  | }; | 
|  | WinsockInitializer g_winsockinit; | 
|  | #endif | 
|  |  | 
|  | }  // namespace rtc |