eiffelroom - daemon - Comments

Ok. I would have thought

Neitsdelf — Mon, 16 Apr 2007 06:28:33 -0700

Ok. I would have thought that when detach returned, after the call to fork, that execution would have continued within the if-then, and then fallen through bypassing the call to execute. I was confused, I guess, so I'll have to study it some more.

No. Detach, forks and then

patrickr — Sun, 15 Apr 2007 23:46:34 -0700

No. Detach, forks and then calls execute in the new process.

Correction?

Neitsdelf — Fri, 13 Apr 2007 07:13:56 -0700

Shouldn't the call to "execute" be outside of the if-then conditional?

Eiffel and Unix

mtn — Mon, 02 Apr 2007 15:40:24 -0700

I personally would be interested to know how to setup signal handlers in Eiffel.

That's basically not that

patrickr — Mon, 02 Apr 2007 15:33:05 -0700

That's basically not that hard. In general on Unix/Linux, the way it is done is to let the process fork itself and then end the parent process. As soon as the parent process exits, the child process is automatically inherited by the init process and can therefore be considered a daemon. In Eiffel probably the easiest way to do it, is to use eposix. Another aspect that should also be done is to implement some signal handlers (e.g. for the TERM signal, to be able to shut down a daemon), I also did this using eposix. If there's interest I can write a quick article about it.

How do you turn your processes into daemons?

mtn — Mon, 02 Apr 2007 15:21:43 -0700

Would be interesting to know.