Re: [Expectperl-discuss] Occasional Pty problems with Expect on FreeBSD. Please help me!

[Dave S. <kin...@ya...>]

Thanks I'm trying to install this module now, though
I'm running into some dependency issues.

Can I ask you some questions in the mean time?

1) How does the SSH module operate when I call
commands that take a long time to run, and have a lot
of output (i.e. cat'ing a large file). Will the 'cmd'
subroutine time out ever? Will it be able to return
that much data in the return value list?

2) Can I add in a timeout value to the 'cmd', such
that it will never wait longer than x seconds for a
command to complete. This is useful for some of my
tests, which can often get hung if there's a bug in
them.

Thanks,
Dave

--- Chris Snyder <cas...@pe...> wrote:
> You might want to look at using Net::SSH instead.
> 
> 
> At 12:08 PM 7/31/2003 -0700, you wrote:
> >Hi!
> >
> >I really need some help, and am so glad that I've
> >finally found this discussion group!
> >
> >I am using Perl and Expect to manage a simple test
> >infrastructure at my company. Every so often a cron
> >job fires off a Perl script. That script then
> executes
> >other Perl scripts, which monitor tests via Expect.
> >Most of those scripts start out by calling
> >Expect->spawn("ssh"), to ssh to another machine and
> >run/monitor their specific test.
> >
> >Occasionally though, Expect's spawn routine dies
> with
> >one of two errors, both of which come from the
> Pty.pm
> >module. I can't figure out what they mean or how to
> >fix them though, which is driving me batty!
> >
> >1) "Cannot open a pty".
> >   This comes from a failure of the pty_allocate
> >function, in the "new" subroutine of Pty.pm. My
> Pty.pm
> >is version 1.02. I cannot find the "pty_allocate"
> >subroutine in any .pm or .pl file on my system, so
> I
> >don't know why it is failing sometimes.
> >
> >2) "Error: could not connect pty as controlling
> >terminal!"
> >   I see this one more often. It is also in Pty.pm,
> in
> >the make_slave_controlling_terminal subroutine.
> >According to the code, it comes from a failure to
> open
> >/dev/tty.
> >
> >Can anyone help me? Expect is about the only tool I
> >can use for my testing infrastructure (that I know
> >about at least). But these occasional failures make
> my
> >infrastructure itself unreliable. I could really
> use
> >some assistance.
> >
> >Thanks so much,
> >Dave
> >
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