use strict;
use warnings;

use MCE::Loop;
use MCE::Shared;

my @dirs = qw( a b c d e f );
my %hash = map { $_ => MCE::Shared->hash } @dirs;

MCE::Loop->init(
   max_workers => $#dirs,
   chunk_size  => 1
);

mce_loop {
  my $dir = $_;
  proccess_1_file($dir, "syn.log") if (-e "$dir/syn.log");
} @dirs;

print $hash{"a"}{"area"}, "\n";

sub proccess_1_file  {
  my ($dir, $file) = @_;
  open(my $fh, "$dir/$file") or die "cannot open $dir/$file $!";
  while (<$fh>) {
    chomp;
    if ($_ =~ /^area=(.*)/) {
      $hash{"$dir"}{"area"} = $1;
    }
  }
}