Gracefully shut down tarpc

[massimo79m]

I'm writing a daemon with two threads: a tarpc that gets the client requests, and a "worker".
When i terminate (TERM signal, not KILL), i need that the tarpc shuts down gracefully, simply not accepting further connections but serving the active requests.
Is there a way?
i've read #307 but i could not find a way.

[tikue]

Hi, thanks for the question! It should be possible. Can you share your code? Do you have a task that accepts new channels, and then you have a separate task executing each channel? If so, basically you'd just want the channel-accepting task to be abortable (might be able to just wrap it in an abortable future), and then there'd be a signal handler that aborts it. I haven't used signal handlers in rust. The CLI book has some instructions for setting up a thread that handles signals: https://rust-cli.github.io/book/in-depth/signals.html

[massimo79m]

Thank you for the comment!
sadly i can't share the code, because actually i'm writing the business logic library that will be used by this daemon, not the daemon itself, i will write it eventually.

Actually i used the term "worker" in a different way: the "worker thread" will do some math, file, net and db work, constantly and independently, and another thread (the one with tarpc) that listens for the client requests (simple CLI + tarpc applications on client PCs), and this thread will read the requests from tarpc and it will set some variables used by the "worker thread".
the "task" of the tarpc will be very fast, i will not need to spawn a thread for a request.

I used "abortable" and works perfectly.
thank you very much.