Re^2: Perl Term::ReadLine::Gnu Signal Handling Difficulties

[sgt_b2002]

in reply to Re: Perl Term::ReadLine::Gnu Signal Handling Difficulties
in thread Perl Term::ReadLine::Gnu Signal Handling Difficulties

Hi Mr. Muskrat

Thanks for the help. I tried the script you provided and can see how to set the Gnu variables now, but my script still doesn't act how I think it should.

Given the script you provided, I'll hit control-c to send an INT to the script while at the prompt. I expect to see "I got a INT" right after I hit control-c. Instead, the script stays at the prompt until I hit enter. After hitting enter I see "I got a INT".

Is this the designed behavior? Ideally, I'd like to have the signal handlers trigger as soon as the signal is received.

Thanks again for helping me out. :)

[Mr. Muskrat]

It works for me; that is to say that when I run it and press ctrl-c, it exits with "I got a INT".

We are going to need more information about the environment where you are testing this. Let's start with operating system, version of Perl, version of Term::ReadLine::Gnu and version of GNU Readline library version should be sufficient for now.

By the way, it's impolite to cross-post without saying you've cross-posted. http://stackoverflow.com/questions/13316232/perl-termreadlinegnu-signal-handling-difficulties

[sgt_b2002]

Thanks again for the reply. I'll be sure to mention cross positing if it happens again as well.

So I've tested this in two environments and in each, the ctrl-c isn't handled until I press enter. Here are the two environments.

OS: Gentoo Linux 2.6.35 x86_64
Perl: 5.12.4
Term::ReadLine::Gnu: 1.20
readline version: 6.2_p1

OS: Gentoo Linux 3.3.8 x86_64
Perl: 5.16.1
Term::ReadLine::Gnu: 1.20
readline version: 6.2_p1

As an aside, I added the following line as a quick check to make sure I'm using Term::ReadLine::Gnu when testing this on different machines.

print $term->ReadLine."\n";

Again, thanks for your help with this. :)

[Mr. Muskrat]

My apologies. Apparently I tested this on the wrong box. I was using Term::ReadLine::Stub instead of Term::ReadLine::Gnu. I'll try again in a bit and keep you updated with what I find.