From 088984b93b504789096ade5654dca3399debc6fe Mon Sep 17 00:00:00 2001
From: Alexander Zhirov <alexander@zhirov.website>
Date: Sun, 10 Oct 2021 23:46:11 +0300
Subject: [PATCH] added exercise 1

---
 lesson_6/exercise_1.hpp | 53 +++++++++++++++++++++++++++++++++++++++++
 lesson_6/main.cpp       | 14 +++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 lesson_6/exercise_1.hpp
 create mode 100644 lesson_6/main.cpp

diff --git a/lesson_6/exercise_1.hpp b/lesson_6/exercise_1.hpp
new file mode 100644
index 0000000..ad56841
--- /dev/null
+++ b/lesson_6/exercise_1.hpp
@@ -0,0 +1,53 @@
+/*
+ * exercise_1.hpp
+ *
+ *  Created on: 10 окт. 2021 г.
+ *      Author: alexander
+ */
+
+#pragma once
+
+#include <iostream>
+#include <thread>
+#include <mutex>
+
+static std::mutex mtx_cout;
+
+class pcout
+{
+private:
+    std::lock_guard<std::mutex> lk;
+public:
+    pcout() : lk(std::lock_guard<std::mutex>(mtx_cout))
+    {
+    }
+
+    template<typename T>
+    pcout& operator<<(const T &data)
+    {
+        std::cout << data;
+        return *this;
+    }
+
+    pcout& operator<<(std::ostream& (*fp)(std::ostream&))                // т.к. std::endl является функцией,
+    {                                                                    // то для неё делаем перегрузку operator<<
+        std::cout << fp;                                                 // которая принимает указатель на функцию
+        return *this;                                                    // типа std::ostream& и возвращает наш
+    }                                                                    // защищённый поток вывода
+};
+
+void doSomething(int number)
+{
+    pcout() << "start thread " << number << std::endl;
+    pcout() << "stop thread " << number << std::endl;
+}
+
+void exercise_1()
+{
+    std::thread th1(doSomething, 1);
+    std::thread th2(doSomething, 2);
+    std::thread th3(doSomething, 3);
+    th1.join();
+    th2.join();
+    th3.join();
+}
diff --git a/lesson_6/main.cpp b/lesson_6/main.cpp
new file mode 100644
index 0000000..f84106c
--- /dev/null
+++ b/lesson_6/main.cpp
@@ -0,0 +1,14 @@
+/*
+ * main.cpp
+ *
+ *  Created on: 10 окт. 2021 г.
+ *      Author: alexander
+ */
+#include "exercise_1.hpp"
+
+int main()
+{
+    exercise_1();
+
+    return 0;
+}