$#tmp count is 100. 
 foreach my $i (0..$#tmp) {
      # Forks and returns the pid for the child:
        my $pid = $pm->start($i);
        if ($pid) {
        print "Pid of Child process $pid\n";
        next;
        };
}

[download]
Prints out the child process 100 times. The below code reads the files in directory and splits files and directory name. 
  my $filename = $tmp[$i]->filename();

      my $file = IO::File->new("<$filename") or die "Can't open $filen
+ame\n";
      while((my $line) = $file->getline()) {
        last unless defined($line);
        chomp $line;
        my ($dir, $file) = split(/\t/, $line);

[download]
The below code calls the subroutine which opens the log file in append mode and write to file. here all the process write to the file and it is not synchronized. The problem is to write to log file one process after the another. 
        $process->($dir, $file, $config, $log);
}
      $pm->finish; # Terminates the child process

[download]
How can I do this

In reply to Re^4: process synchronize.... Please help me out by sandy1028
in thread process synchronize.... Please help me out by sandy1028

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.