use Thread::Semaphore;

my $writelog = Thread::Semaphore->new(); #sequential log writing

use diagConfig; #$sourcepath, %files, and helper functions

open my $LOGFH ,">", $files{log}{file};
#disable write buffer
my $stdout = select($LOGFH);
$| = 1;
select($stdout);

use License (\$LOGFH, \$writelog);