How can I handle errors in C++ thread pools?

How can I handle errors in C++ thread pools?

In C++, you can handle errors in thread pools by using exception handling within the thread functions. You can catch exceptions and log them or rethrow them to be handled by the main thread.

Can you give me an example of how to implement that?

Sure! You can wrap your thread function code in a try-catch block. For instance:

void threadFunction() {
    try {
        // Your code here
    } catch (const std::exception& e) {
        std::cerr << "Error: " << e.what() << std::endl;
    }
}

What if I want to propagate the error back to the main thread?

You can use a shared data structure, like a std::promise or std::future, to communicate errors back to the main thread. When an error occurs, set the promise with the exception.

Are there any libraries that can help with this?

Yes, libraries like Boost.Thread or Intel TBB provide higher-level abstractions for thread pools and error handling, making it easier to manage errors.