Threading Library

Basics

What is multithreading?

Why multithreading?

Overview of C+ thread library

Let us start with an easy example:

#include <iostream>

#include <thread>

void helloFunction() {

 std::this_thread::sleep_for(std::chrono::milliseconds(rand() % 1000));

 std::cout << "Hello from a thread!\n";

}

int main() {

 std::thread t1(helloFunction);

 std::thread t2(helloFunction);

 

 std::cout << "We have launched two threads to operate in parallel!" << std::endl;

 t1.join(); // Wait for the thread to finish

 t2.join();

 

 return 0;

}