I'd be very careful with signals and mono, for one thing, the soft-debugger uses signals to convey things like step in/out/next
Remember, that signal handlers are supposed to never make function calls beyond the standard library. If you signal handler is written in c# you've already broken than particular idea. Ian On Thu, Jan 17, 2013 at 04:02:50PM +0000, mickeyf wrote: > I'm new to signals. Looking over the Mono docs, and various articles on the > web, it's clear that this has evolved as Mono matured. I just want to make > sure I understand how it actually works today, and what I should expect. > > I see in this documentation: > <http://oddacon.hopto.org:8181/1.1/handlers/monodoc.ashx?link=T%3AMono.Unix.UnixSignal> > > > "In a multi-threaded program, a thread is selected at random among the > threads that can handle the signal, and that thread is hijacked to run the > signal" > > I understand that that is referring to _unmanaged_ *nix code, not Mono. > > Further along in the same doc, we have > > "[Mono.Unix.UnixSignal] uses an internal unmanaged signal handler." > > So, I'm thinking of using code based on height8's (only 2 year old) blog > post : here <http://www.height8.com/?unixsignal_mono> > > So my questions are: > > If I have a Mono application with an arbitrary number of threads, can I use > this approach to make sure that any signal is properly caught and handled by > a single method? That is, will any signals that are raised be seen only by > my signal handler, and ignored by everything else? > > If my Mono app is using unmanaged libraries, I presumably have to ensure > that the library code also either ignores any signals or handles them in a > sensible way. (Using signal(2), or SIGACTION(2) ?) > > What I'm ultimately aiming at is that I can > > a) make sure that I can shut down my application cleanly and completely by > sending it a signal (ctrl-C from the keyboard for example), and that > > b) it does not get tripped up by signals that may originate from other > processes other than a system shut down, an intentional "kill", etc. > > thanks > > > > -- > View this message in context: > http://mono.1490590.n4.nabble.com/Question-on-unix-signal-handling-tp4658167.html > Sent from the Mono - General mailing list archive at Nabble.com. > _______________________________________________ > Mono-list maillist - [email protected] > http://lists.ximian.com/mailman/listinfo/mono-list _______________________________________________ Mono-list maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-list
