Phil, thank you very much for the pointer and the book reference, it got me in the right direction.

The final solution is almost like the one you suggested:

my $buffer = '';
$rdr->blocking(0);
while ($buffer eq '') {
    $rdr->read($buffer,1024);
}

[download]

$rdr->read is just an OO wrapper for read.

The key to making this work was to use $rdr->blocking(0), which makes the pipe reading non-blocking. Otherwise a deadlock occurs -- maybe because the read command blocks while waiting for 1k to be filled, but not sure.

Thank you,
Tibi

In reply to Re^2: Reading partial lines/strings from a pipe by slightly72
in thread Reading partial lines/strings from a pipe by slightly72

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.