If I read from a pipe (pipe open), then it fails on close if pipe is broken -- this is why I check exit status of close.

Yes, checking the return value of close is very important on piped opens - as per its documentation:

close $fh or die $! ? "Error closing pipe: $!"
    : "Piped open exit status: $?";

[download]
when data read from local file is broken in the middle of the process of reading

It depends a bit on what "broken" means - if you are always reading from a pipe, then yes, you should be able to detect this condition. However, if you're reading from a regular file, then I don't think the reading program will be able to detect a failure in the writer, if that is what you mean. If the file format allows for any kind of sanity checks (like headers with record lengths or other well-formedness checks), or even checksums, then I would use those.

In reply to Re^3: bullet proof SLURP file by haukex
in thread bullet proof SLURP file by leszekdubiel

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.