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. 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.

>
> 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.

Gary

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