What are some examples of unique locks in C++?

Can you explain what unique locks are in C++?

Unique locks are a type of mutex wrapper in C++ that manage the locking and unlocking of a mutex.

What are some examples of using unique locks?

You can use unique locks to protect shared resources in multithreaded applications, ensuring only one thread accesses the resource at a time.

Can you show me a code example?

Sure! Here's a simple example:

#include <iostream>
#include <thread>
#include <mutex>

std::mutex mtx;

void printThreadId(int id) {
    std::unique_lock<std::mutex> lock(mtx);
    std::cout << "Thread ID: " << id << std::endl;
}

int main() {
    std::thread t1(printThreadId, 1);
    std::thread t2(printThreadId, 2);
    t1.join();
    t2.join();
    return 0;
}

What happens if I forget to unlock the unique lock?

If you forget to unlock a unique lock, it will automatically unlock when the unique lock object goes out of scope, preventing deadlocks.