A simplified approach without log file rotation: 
#!/opt/coolstack/bin/perl -w
use strict;
use warnings;

use threads;
use Thread::Queue;

my $file = "logfile.log";
my $queue = Thread::Queue->new() or die "$!";
my $thr = threads->create(
    sub{
      my $q = shift;
      my $line;
      open(my $fh,">>", $file) or die "Cant open file $! [$file]";
      print $fh "$line\n" while $line = $queue->dequeue();
    }, $queue
);


my @thrs;
push @thrs , threads->create(sub{
  $queue->enqueue(threads->tid ."> Log Message: $_") for (1..100);
}) for (1..10);

$_->join for @thrs;
$queue->enqueue(undef); # End Logger Thread
$thr->join;

exit;

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«A contentious debate is always associated with a lack of valid arguments.»

In reply to Re: [threads] Open a file in one thread and allow others to write to it by gulden
in thread [threads] Open a file in one thread and allow others to write to it by Gangabass

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