Hi Monks-

I'm trying to run a remote command (via Net::SSH::Perl) that never returns, and would like to be able to break out of it whenever I want.

How can I do this?

Below is some sample code I've written to illustrate what I want to do.

In the alarm handler, I would like to break the currently running command (close doesn't work), then re-run the command to start counting again.

Any pointers are much appreciated!

Thanks

-Craig

Update: Searching through the code, I see that $ssh->_disconnect is available, but it is a null subroutine. Still looking...

Update 2: Using $ssh->break_client_loop seems to work. Not sure of side-effects yet... 

use strict;
use warnings;

use Net::SSH::Perl;

my $myssh;

$SIG{ALRM} = sub {
    print STDERR "\nALARM\n";
    $myssh->close;    ### There is no close - what can I use?
    remcount($myssh);
    alarm 5;
};

$myssh = Net::SSH::Perl->new( "MY.REMOTE.SERVER", protocol => 2 );

alarm 5;
remcount($myssh);
  
sub remcount
{
    my $ssh = shift || die "missing ssh object";

    $ssh->login("MYLOGIN", "MYPASSWORD") or die "Failed to login: $!\n
+";

    # STDOUT handler...
    $ssh->register_handler('stdout', sub {
        my ($channel, $buffer) = @_;
        print STDERR "OUT BYTES: ", $buffer->bytes, "\n";
    });

    my $perlcmd = join('', <DATA>);

    my $cmd = "/bin/perl -  -heartbeat ";

    print STDERR "REMOTE: $cmd\n";

    my ($stdout, $stderr, $exit) = $ssh->cmd($cmd, $perlcmd);
}

__DATA__
use strict;
use warnings;

$|++;

my $c=0;
while(1) {
    print $c++;
    sleep 1;
}

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In reply to Net::SSH::Perl - Breaking out of a running command? by cmv

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