Search⌘ K
AI Features
Home
Courses
Master Software Design Patterns and Architecture in C++

Solution: Check the Race Condition

Understand how to detect race conditions in concurrent C++ programs and explore methods to resolve them through synchronization. This lesson explains using ThreadSanitizer to identify data races and guides you in applying safe concurrency patterns to avoid conflicts.

We'll cover the following...
C++
#include <functional>
#include <iostream>
#include <string>
#include <thread>
using namespace std::chrono_literals;
void byCopy(bool b){
    std::this_thread::sleep_for(1ms);
    std::cout << "byCopy: " << b << '\n';
}
void byReference(bool& b){
    std::this_thread::sleep_for(1ms);
    std::cout << "byReference: " << b << '\n';
}
void byConstReference(const bool& b){
    std::this_thread::sleep_for(1ms);
    std::cout << "byConstReference: " << b << '\n';
}
int main(){
    std::cout << std::boolalpha << '\n';
    bool shared{false};
    
    std::thread t1(byCopy, shared);
    std::thread t2(byReference, std::ref(shared));
    std::thread t3(byConstReference, std::cref(shared));
    
    shared = true;
    
    t1.join();
    t2.join();
    t3.join();
    std::cout << '\n';
}

Explanation

There is a data race condition in the code above, as ...