1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 20 #ifndef _THRIFT_TRANSPORT_WINDOWS_TWINSOCKSINGLETON_H_ 21 #define _THRIFT_TRANSPORT_WINDOWS_TWINSOCKSINGLETON_H_ 1 22 23 #if defined(_MSC_VER) && (_MSC_VER > 1200) 24 #pragma once 25 #endif // _MSC_VER 26 27 #ifndef _WIN32 28 #error This is a MSVC header only. 29 #endif 30 31 #include <thrift/thrift-config.h> 32 33 // boost 34 #include <thrift/TNonCopyable.h> 35 36 #include <memory> 37 #include <mutex> 38 39 40 namespace apache { 41 namespace thrift { 42 namespace transport { 43 44 /** 45 * Winsock2 must be intialised once only in order to create sockets. This class 46 * performs a one time initialisation when create is called. 47 */ 48 class TWinsockSingleton : private apache::thrift::TNonCopyable { 49 50 public: 51 typedef std::shared_ptr<TWinsockSingleton> instance_ptr; 52 53 private: 54 TWinsockSingleton(void); 55 56 public: 57 ~TWinsockSingleton(void); 58 59 public: 60 static void create(void); 61 62 private: 63 static void init(void); 64 65 private: 66 static instance_ptr instance_ptr_; 67 static std::once_flag flags_; 68 }; 69 } 70 } 71 } // apache::thrift::transport 72 73 #endif // _THRIFT_TRANSPORT_WINDOWS_TWINSOCKSINGLETON_H_ 74
