I want to make a chat script based on SOCKET.It listen() to a port and when a user come it accept() it and builds a NEW_SOCKET contacting with the user(print the web page). The parent process fork() a child process that will print to the NEW_SOCKETand use pipe() talk to the child. The child section looks like: ############
$connect=0; $readpipe="READ$connect"; $writepipe="WRITE$connect"; pipe($readpipe,$writepipe); $writepipe->autoflush(); my $pid; if (!($pid=fork)) { close $writepipe; $readpipe->autoflush; select(NEW_SOCKET); while(1) { my $words; my $rbits=''; vec($rbits,fileno($readpipe),1)=1; select($rbits,undef,undef,undef); $words=<$readpipe>; print "<br>$words"; } close NEW_SOCKET; exit; } $connect++; close $readpipe; $writepipe->autoflush(); $pipes{$pid}=$writepipe;
############### First it worked well lasting for 3 or 4 minutes.But suddenly it was out of control.I think "select($rbits,undef,undef,undef);" statement lose his effect and he didn't like to wait for the filehandle become ready any more.The child print innumerable "
" to user's browser Madly and Continually! Now I am stranded.Can you give me a lesson?Thank you.

In reply to Can you tell me why? by Anonymous Monk

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.