You might want to try this script, which was worked out by
andThenThereWasPERL in
forking with Storable and IPC::ShareLite. It may give you a way to get it working with Parallel::ForkManager, or at least clue you in as to why your code is failing.
#!/usr/bin/perl
use strict;
use Parallel::ForkManager;
use IPC::Shareable;
my $glue = $$;
my %options = (
create => 1,
exclusive => 0,
mode => 0644,
destroy => 1,
);
my %final_parent_hash;
my $parent_share = tie %final_parent_hash, 'IPC::Shareable', $glue, {
+%options } or die "parent : tie failed\n";
my $fork_manager = new Parallel::ForkManager(5);
foreach my $child ( 1 .. 10 ) {
my $pid = $fork_manager->start($child) and next;
my %options = (
create => 0,
exclusive => 0,
mode => 0644,
destroy => 0,
);
my %child_hash;
my $child_share = tie %child_hash, 'IPC::Shareable', $glue, { %opt
+ions } or die "client: tie failed\n";
for my $id (1 .. 20) {
my $key = $child . '-' . $id;
$child_share->shlock;
$final_parent_hash{$key} = qq{|Kid $child pushed $id};
$child_share->shunlock;
}
$fork_manager->finish($child);
}
print "Waiting for Children...\n";
$fork_manager->wait_all_children;
my $sleep_ctr = 10;
while ($sleep_ctr) {
if ((keys %final_parent_hash) == 200) {
last;
}
sleep 1;
$sleep_ctr--;
}
foreach my $child ( 1 .. 10 ) {
for my $id (1 .. 20) {
my $key = $child . '-' . $id;
if (! exists $final_parent_hash{$key} ) {
print "Missing data for Kid $child , data $id\n";
}
else {
print "$key = $final_parent_hash{$key}\n";
}
}
}
IPC::Shareable->clean_up_all;
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