if (!open(COPY,'>',$copyfile)) #open the file for writting before we s
+tart reading from it
{ 
    $cf_status = 0;
    open(COPY,'>&STDOUT');
};
my $pid;
if ($pid = fork)
{
  redirect_to_file(); #redirect output to the COPY file
  .
  .
  .
  open( OLDOUT, ">&STDOUT" ) or ...;
  open( OLDERR, ">&STDERR" ) or ...;

  # redirect everything to a capture file; fail if it already exists
  if ( !sysopen( STDOUT, $outFile, O_WRONLY|O_EXCL|O_CREAT ) ) { ... }
  open( STDERR, ">& STDOUT" ) or ...;
  select(STDERR); $| = 1;     # make unbuffered
  select(STDOUT); $| = 1;
  binmode( STDOUT );          # don't interpret CRLF/Unicode
  binmode( STDERR );
  system('command');
  open( STDOUT, ">&OLDOUT" ) or ...;
  open( STDERR, ">&OLDERR" ) or ...;
  close( OLDOUT ) or ...;
  close( OLDERR ) or ...;

  end_redirection(); 

  waitpid($pid,0); # wait for child process to finish reading and to e
+xit
}
else
{
  die "cannot fork: $!" unless defined $pid;
  .
  . #reads from COPY file
  .
}

[download]

edited: Thu Jun 26 15:10:13 2003 by jeffa - code tags

In reply to Re: Re: Re: Re: fork system() STDOUT redirection on WindowsXP by dave_usa
in thread fork system() STDOUT redirection on WindowsXP by dave_usa

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.