From: Luis Lavena <luislavena@...>
Date: 2010-06-26T12:15:04+09:00
Subject: Re: $? is always new?

On Jun 25, 8:33 pm, Luis Lavena <luislav...@gmail.com> wrote:
> On Jun 25, 6:00 pm, Roger Pack <rogerpack2...@gmail.com> wrote:
>
>
>
>
>
> > >>>> $?
> > >> => #<Process::Status: pid 20122 exit 0>
> > >>>> $?
> > >> => #<Process::Status: pid 20134 exit 0>
>
> > >> What are those phantom processes?
> > >> -r
>
> > > What platform are you on? What ruby version? For me, with ruby
> > > 1.8.7.249-2 standard package from Ubuntu Lucid amd64:
>
> > > $ irb
> > > irb(main):001:0> $?
> > > => nil
>
> > On windows it appears to behave as expected.
>
> > On linux (Ubuntu, I believe latest revision).
>
> > All built from source:
>
> > [25:1557][rdp@ilab1:~]$ ruby -v
> > ruby 1.9.1p243 (2009-07-16 revision 24175) [i686-linux]
> > [25:1557][rdp@ilab1:~]$ export RUBYOPT=
> > [25:1558][rdp@ilab1:~]$ irb
> > irb(main):001:0> $?
> > => #<Process::Status: pid 21719 exit 0>
> > irb(main):002:0> $?
> > => #<Process::Status: pid 21731 exit 0>
> > irb(main):003:0> $?
> > => #<Process::Status: pid 21743 exit 0>
> > irb(main):004:0> exit
> > [25:1558][rdp@ilab1:~]$ ~/installs/ruby-1.8.7-p174_installed/bin/irb
> > irb(main):001:0> $?
> > => #<Process::Status: pid=21771,exited(0)>
> > irb(main):002:0> $?
> > => #<Process::Status: pid=21778,exited(0)>
> > irb(main):003:0> $?
> > => #<Process::Status: pid=21785,exited(0)>
>
> Linux or Windows, all the versions return nil when asked.
>
> Seems there is a thread you're running with your irb session that
> might be spawning a lot.
>

It could be associated with rb-readline, but under my system it
doesn't spawn more than once:

:\Users\Luis>irb
irb(main):001:0> $?
=> #<Process::Status: pid=3464,exited(0)>
irb(main):002:0> $?
=> #<Process::Status: pid=3464,exited(0)>
irb(main):003:0> $?
=> #<Process::Status: pid=3464,exited(0)>
irb(main):004:0> $?
=> #<Process::Status: pid=3464,exited(0)>

--
Luis Lavena