54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
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/*
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* exercise_1.hpp
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*
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* Created on: 10 окт. 2021 г.
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* Author: alexander
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*/
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#pragma once
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#include <iostream>
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#include <thread>
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#include <mutex>
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static std::mutex mtx_cout;
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class pcout
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{
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private:
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std::lock_guard<std::mutex> lk;
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public:
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pcout() : lk(std::lock_guard<std::mutex>(mtx_cout))
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{
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}
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template<typename T>
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pcout& operator<<(const T &data)
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{
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std::cout << data;
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return *this;
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}
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pcout& operator<<(std::ostream& (*fp)(std::ostream&)) // т.к. std::endl является функцией,
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{ // то для неё делаем перегрузку operator<<
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std::cout << fp; // которая принимает указатель на функцию
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return *this; // типа std::ostream& и возвращает наш
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} // защищённый поток вывода
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};
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void doSomething(int number)
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{
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pcout() << "start thread " << number << std::endl;
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pcout() << "stop thread " << number << std::endl;
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}
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void exercise_1()
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{
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std::thread th1(doSomething, 1);
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std::thread th2(doSomething, 2);
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std::thread th3(doSomething, 3);
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th1.join();
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th2.join();
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th3.join();
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}
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