punit jain wrote:
Hi,
Hello,
I am facing an issue. Below is code snippet : -
my $pm = new Parallel::ForkManager(10);
my $count=0;
foreach my $user (@users) {
$pm->start($user) and next;
my $result;
--- do some processing ---
$pm->finish(0, \$result);
}
$pm->wait_all_children;
However the final value of count is not correct. Is there some race
condition on same variable updation by the processes ?
Regards,
Punit
pm -> run_on_finish (
sub {
my $result = @;
if (defined($result)) {
my $count += $result;
Here you are creating a variable named $count which is only visible
inside the scope of this subroutine, so your other $count variable is
not affected.
}
}
John
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