C+＋並發類成員函數調用（練習1）

標籤：ble   with   and   bool   his   condition   函數調用   std   type   

一般類成員函數開線程格式 std::thread t1(&類名::函數，&執行個體化對象，參數....) ||std::thread t1(std::bind(&&類名::函數，&執行個體化對象，參數....))

 1 #include <iostream> 2 #include <mutex> 3 #include <thread> 4 #include <vector> 5 #include <string> 6 #include <condition_variable> 7 #include <future> 8  9 10 template<typename T>11 class vector_safe12 {13 public:14     vector_safe():ready(false),proccess(false){}15 public:16     void push(T& value)17     {18         std::unique_lock<std::mutex> m_guard(mut);19         vec.push_back(value);20         ready=true;21         m_guard.unlock();22         condit_va.notify_one();23     }24     void get_and_pop(T& value)25     {26         std::unique_lock<std::mutex> m_guard(mut);27         condit_va.wait(m_guard,[this](){return ready;});//wait-------線程完畢資料；28                        29         value=vec.front();30         vec.pop_back();31         proccess=true;32          m_guard.unlock();33     34     }35 private:36     std::vector<T> vec;37     std::mutex mut;38     std::condition_variable condit_va;39     bool ready;40     bool proccess;41 42 };43 vector_safe<std::string> obj;44 45 int main()46 {47     48         std::string str1("this is dream");49         std::string str2("沒覆蓋?");50     std::thread t1(std::bind(&vector_safe<std::string>::push,&obj,std::ref(str1)));51     std::thread t2(std::bind(&vector_safe<std::string>::get_and_pop,&obj,std::ref(str2)));52         t1.join();53         t2.join();54         std::cout<<str2<<std::endl;55         return 0;56 }

運行結果：xcode 7.2this is dreamProgram ended with exit code: 0

 

C+＋並發類成員函數調用（練習1）