Timer service

[Martin Furmanski]

Hello!

Did you ever consider exposing a pure timer service? I think a timer service would fit neatly in the framework as a general capability. You also already have the basic infrastructure of making it efficient, e.g. native timerfd-support on Linux.

Best Regards,

Martin Furmanski

[Norman Maurer]

I am not sure what exactly you are looking for but we have HashedWheelTimer or EventLoop for this.

What is missing here ?

Bye

Norman

[Martin Furmanski]

Well a timer service is a different type of service. Not sure I can find you a good reference, but read for example the beginning of this article:

https://lwn.net/Articles/735887/

"The other subsystem is just called "kernel timers"; it offers less precision but is more efficient in situations where the timer will probably be canceled before it fires."

Something like a Timer#reset() method, which resets the countdown to the event, is not natural with a task scheduler, although you can surely emulate it sort of.

They are related, but different.

You can read about Linux timerfd_settimer or POSIX setitimer to get a better feeling for what a timer service might offer.