I am running a remote process watching script (nothing more than 'ssh user@host pslist.exe' - yes, the damn remote host is a WinNT with Cygwin+OpenSSH) 
    my $pid = open(PSLIST, " ssh -2 $user\@ $peer ./pslist | ")
        || die "Remote process list gathering error:\n$!.\n";

    while(<PSLIST>){
        chomp($_);
        push(@pslist, $_);
    }
    close(PSLIST);

    foreach (@service){
        # .. check the existence of a process
    }

[download]
Unfortunately, sometimes the spawned process simply does not finish. In order to prevent processes hanging out there, I wish to set a timeout, but I would need to set an asynchronous process (spam the ssh session, wait for its output in a loop, while incrementing a counter; when the counter exceeds the limit, just kill it). So, the question: there is a way to implement this kind of asynchronous communication?

In reply to Read a process output asynchronously by redbrick

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.