Writing Interrupt proram in PERL

venkatesan_G02 has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks,

I am writing a PERL program in which the program has to wait for a user input. But i have a requirement that the program has to execute certain parts of the code until the user keys in an input.

Right now, my program just waits for the input but not executing the code until an input is provided

So, could anyone throw some light on how to solve this issue? Any reference to any PERL Module?

Thanks!!!

Comment on Writing Interrupt proram in PERL

Replies are listed 'Best First'.
Re: Writing Interrupt proram in PERL by Joost (Canon) on Oct 01, 2009 at 10:30 UTC
The low-level way of handling this sort of thing is to setup all your IO (including the terminal input) as non-blocking, and then use select to dispatch code whenever input arrives or output is flushed at a socket/handle, and possibly do other stuff in between. I'd recommend POE::Wheel::Readline in this case - it takes care of a lot of stuff for you, but you do need to read up a bit on POE. See also the example at the poe.perl.org site updated: fixed link to PWR "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply]
Re: Writing Interrupt proram in PERL by venkatesan_G02 (Sexton) on Oct 05, 2009 at 11:12 UTC
Hi, Sorry for late reply I tried the following code but it's throwing an error: `#!C:/Perl/bin/perl.exe use strict; use warnings; use POE; # The base system. use POE::Wheel::ReadLine; # For reading lines from the console.` [download] Error: MSWin32 cannot run POE::Wheel::ReadLine at C:/Perl/site/lib/POE/Wheel/ReadLine.p m line 17. Does this error mean i cannot use POE under windows environment?	[reply] [d/l]
Re^2: Writing Interrupt proram in PERL by marto (Cardinal) on Oct 05, 2009 at 11:19 UTC
See Lack of Windows Support from the documentation. Martin	[reply]
Re^3: Writing Interrupt proram in PERL by venkatesan_G02 (Sexton) on Oct 05, 2009 at 11:28 UTC
So, is there any work-around for using POE::Wheel::ReadLine under windows environment?	[reply]
Re^4: Writing Interrupt proram in PERL by marto (Cardinal) on Oct 05, 2009 at 11:34 UTC