How do I handle errors with Boost Asio timers in C++?

How do I handle errors with Boost Asio timers in C++?

You can handle errors in Boost Asio timers by using the error_code parameter in your callback function.

Can you show me a code example of that?

Sure! Here's a simple example:

#include <boost/asio.hpp>
#include <iostream>

void timer_handler(const boost::system::error_code& e) {
    if (e) {
        std::cerr << "Timer error: " << e.message() << std::endl;
    } else {
        std::cout << "Timer expired!" << std::endl;
    }
}

int main() {
    boost::asio::io_context io;
    boost::asio::steady_timer timer(io, std::chrono::seconds(1));
    timer.async_wait(timer_handler);
    io.run();
    return 0;
}

What types of errors should I expect when using timers?

Common errors include operation_aborted if the timer is canceled before it expires, or system_errors related to the underlying I/O.

Is there a way to cancel a timer?

Yes, you can cancel a timer by calling the cancel() method on the timer object. This will trigger the error_code in your handler.