Re: boost::asio::steady_timer only firing once

From: Christopher Pisz (christopherpisz_at_[hidden])
Date: 2019-07-12 05:06:19

No loop should be needed. io context runs until there is no more work.
There is always work as long as the timer is being waited on,

On Fri, Jul 12, 2019 at 12:00 AM degski via Boost-users <
boost-users_at_[hidden]> wrote:

> On Fri, 12 Jul 2019 at 03:43, Christopher Pisz via Boost-users <
> boost-users_at_[hidden]> wrote:
>
>> I am trying to perform a task on an interval and I made a POC using
>> boost::asio::steady_timer. When I debug it, it only performs the callback
>> once and does not fire again. I am not sure what I am doing wrong. Any
>> suggestions?
>>
>
> Why would it 'fire' more than once, there is no loop?
>
> int main() {
>     boost::asio::io_context ioContext;
>     auto pooper = Pooper(ioContext);
>     while ( true ) {
>          pooper.Run();
>         ioContext.run();
>     }
>     std::cerr << "Exited..." << std::endl;
> }
>
> Now it will poop till you drop.
>
> Other than that, this appears to be [you don't state what you would like
> to achieve] some kind of event-loop, where you suspend till the next frame.
> You can suspend the current thread with std::this_thread::sleep_for (
> std::chrono::milliseconds ( milliseconds_to_sleep ) ); or
> std::this_thread::sleep_until ( some_time_point_in_the_future ); using just
> std-lib facilities. Having said that, have a look at SFML (
> https://www.sfml-dev.org/), which has all those things, event-loop,
> event-polling, mouse, touch, joy-stick, sound, image rendering, window
> creation etc.
>
> degski
> --
> @realdegski
>
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