Re: [Ssh-sftp-perl-users] Trap connection errors somehow instead of just letting the whole script die.

[Hans de G. <ha...@da...>]

Hello,

What I tried before I posting here was this:

sub copy_file 
    {   
    my $source=shift;
    my $dest=shift;  
    my $f;
    
    eval($f=$sftp->get($source,$dest));
    if ($@) 
        {   
        print "Connection error!!\n";
        #try to reconnect here..    
        }   

    }

But what happened was that the script did not die, but also no error
message or something. I mean it did not print the "connection error!!"
message.
It just sat there doing nothing.

But maybe the eval should be betwen {} instead of () ? Could that
explain the "waiting"?

Thanks for your help.

Hans



On Wed, 28 Mar 2012 22:44:44 +1000 (EST)
"Christian King" <chr...@ch...> wrote:

> Wrap the relevant call(s) in an eval {} block.
> 
> If there is a syntax error or runtime error, or a die statement is
> executed, eval returns undef in scalar context or an empty list--or, for
> syntax errors, a list containing a single undefined value--in list
> context, and $@  is set to the error message.
> 
> http://perldoc.perl.org/functions/eval.html
> 
> The execution will drop out of the code within eval {} and back to your
> program when there is an error.
> 
> > Hello list,
> >
> > I made a sftp script that should copy stuff from a to b.
> >
> > But some times during a session (lots of data) the script dies with:
> >
> > Connection failed: Connection reset by peer
> >   at /usr/lib/perl5/site_perl/5.8.8/Net/SFTP.pm line 568
> >
> > But I need the script to keep running and detect these errors and try to
> > reconnect and resume copyinf file. But it seems it's out of my hands?
> >
> > The script dies in the net::sftp module.
> >
> > Are there any config settings I could pass to net:sftp or maybe net::ssh?
> >
> > It is rather irritating the way it works now.
> >
> > The only work arround I could think of now is have my script call an
> > other script that copies the files and when it dies I can see it in the
> > output. But tracking whichs files have been copied is a lot harder this
> > way.
> >
> > Regards,
> >
> >
> > --
> > Hans de Groot <ha...@da...>
> >
> >
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-- 
Hans de Groot <ha...@da...>