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Re^2: Multi-thread combining the results together

by marioroy (Vicar)
on Jul 25, 2019 at 12:18 UTC ( #11103365=note: print w/replies, xml ) Need Help??

in reply to Re: Multi-thread combining the results together
in thread Multi-thread combining the results together

Sharing data is feasible using a parallel module of your choice. Here is a demonstration using Parallel::ForkManager and MCE::Shared.

use strict; use warnings; use Parallel::ForkManager; use MCE::Shared; use Data::Dumper; my @tokens = qw( ab bc cd de ef fg gh ); sub build_regex { my ($token) = @_; chop $token; } my $pm = Parallel::ForkManager->new(4); $pm->set_waitpid_blocking_sleep(0); tie my %result, 'MCE::Shared'; DATA_LOOP: foreach my $token ( @tokens ) { # forks and returns the pid for the child my $pid = $pm->start and next DATA_LOOP; my $regex = build_regex($token); my @line_results = grep { $_ ne $token and /$regex/ } @tokens; $result{ $token } = \@line_results if @line_results; $pm->finish(0); } $pm->wait_all_children; print Dumper( tied(%result)->export({ unbless => 1 }) ), "\n"; __END__ $VAR1 = { 'ef' => [ 'fg' ], 'fg' => [ 'gh' ], 'cd' => [ 'de' ], 'de' => [ 'ef' ], 'bc' => [ 'cd' ], 'ab' => [ 'bc' ] };

Regards, Mario

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