Hi Gary, On Wed, 23 Nov 2016 14:36:57 +0000 Gary Stainburn <gary.stainb...@ringways.co.uk> wrote:
> On Wednesday 23 November 2016 14:05:40 Shlomi Fish wrote: > > Aside from named pipes there are also unix-domain sockets and TCP sockets, > > both of which are more robust. > > The closest thing I've got to IPC is writing an xinetd service, which I then > called from perl scripts using Net::Telnet. IPC is therefore one of the > things I'm going to have to learn. The Domoticz service that I'm supporting > is itself an event driven service which runs pretty much all of my house. > The key requirement of whatever method I use is that I cannot under any > circumstance block Domoticz. That is one reason I'm wary of using a pipe.. > If my server dies, then writing to the pipe will block. It's also possible to do async and/or nonblocking writes. > The benefit of a pipe > is that it's very simple to code in however many ways I need, Perl, LUA etc. > (LUA is embedded in Domoticz) > > I have considered using a standard text file rather than a pipe, allowing > anything to append to the pipe, then my daemon reading when it's ready. One > things I have found to help with this is: > > https://gist.github.com/sugar84/1198879 > > which is an example of tail -f to a pipe. As Domoticz already writes to a > log file, I should be able to readm input from there too and respond to both > (hopefully) > > > Last time I checked, AnyEvent erred if IO-Async which is a different > > alternative was also used, causing some people to avoid using AnyEvent. I > > ended up sticking with AnyEvent for > > https://metacpan.org/release/App-ManiacDownloader because IO-Async's > > support for FTP was lacking. > > Are you saying that the problem only arrises if I use both AnyEvent and > IO-Async? I haven't had a look at the latter, but I doubt (hope) that my > daemon won't get too complicated. Yes, that's what I'm saying. > > > > > Also see the page I wrote here - http://perl-begin.org/uses/multitasking/ . > > There's also https://metacpan.org/release/Reflex which I think is a > > Moose-based rethinking of POE . > > Thanks for the extra links. I'll have a good look at them all before starting. > You're welcome. > Gary > -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ The devil created a 10th circle of hell for the inventors of XSLT, because the first nine circles were too mild for them. Please reply to list if it's a mailing list post -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
