Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine
 
PerlMonks  

Re: How to run the child process parellel to the parent process with fork

by bojinlund (Priest)
on Mar 15, 2013 at 23:04 UTC ( #1023792=note: print w/ replies, xml ) Need Help??


in reply to How to run the child process parellel to the parent process with fork

This shows two other alternatives of parallel processing (not explicitly using fork). Save this as MyChameleon.pm:

package MyChameleon; use strict; use warnings; use threads; $| = 1; # autoflush STDOUT my $used_as_script = not caller(); if ($used_as_script) { print "Start script\n"; my $thread_to_do = threads->create( \&to_do, 'thread', 5 ); my $thread_sys = threads->create( sub { system $^X, "-MMyChameleon", "-e", "MyChameleon::to_do('sy +stem')"; } ); to_do( 'script', 3 ); $thread_to_do->join; $thread_sys->join; exit; } sub to_do { my ( $tag, $times ) = @_; $times //= 10; print "$tag: Hello World!\n"; map { print "$tag ($_)\n"; sleep 1 } ( 1 .. $times ); print "$tag: is done\n"; } !!1;

Run it like this: “perl MyChameleon.pm”.

See also How a script becomes a module


Comment on Re: How to run the child process parellel to the parent process with fork
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1023792]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (13)
As of 2014-12-29 15:32 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (192 votes), past polls