NAME

Mojo::IOLoop::ReadWriteProcess::Pool - Pool of Mojo::IOLoop::ReadWriteProcess objects.

SYNOPSIS

    use Mojo::IOLoop::ReadWriteProcess qw(parallel);
    my $n_proc = 20;
    my $fired;

    my $p = parallel sub { print "Hello world\n"; } => $n_proc;

    # Subscribe to all "stop" events in the pool
    $p->once(stop => sub { $fired++; });

    # Start all processes belonging to the pool
    $p->start();

    # Receive the process output
    $p->each(sub { my $p = shift; $p->getline(); });
    $p->wait_stop;

    # Get the last one! (it's a Mojo::Collection!)
    $p->last()->stop();

METHODS

Mojo::IOLoop::ReadWriteProcess::Pool inherits all methods from Mojo::Collection and implements the following new ones. Note: It proxies all the other methods of Mojo::IOLoop::ReadWriteProcess for the whole process group.

get

    use Mojo::IOLoop::ReadWriteProcess qw(parallel);
    my $pool = parallel(sub { print "Hello" } => 5);
    $pool->get(4);

Get the element specified in the pool (starting from 0).

add

    use Mojo::IOLoop::ReadWriteProcess qw(pool);
    my $pool = pool(maximum_processes => 2);
    $pool->add(sub { print "Hello 2! " });

Add the element specified in the pool.

remove

    use Mojo::IOLoop::ReadWriteProcess qw(parallel);
    my $pool = parallel(sub { print "Hello" } => 5);
    $pool->remove(4);

Remove the element specified in the pool.

maximum_processes

    use Mojo::IOLoop::ReadWriteProcess qw(parallel);
    my $pool = parallel(sub { print "Hello" } => 5);
    $pool->maximum_processes(30);
    $pool->add(...);

Prevent from adding processes to the pool. If we reach maximum_processes number of processes, add() will refuse to add more to the pool.

ENVIRONMENT

You can set the MOJO_PROCESS_MAXIMUM_PROCESSES environment variable to specify the the maximum number of processes allowed in Mojo::IOLoop::ReadWriteProcess instances.

    MOJO_PROCESS_MAXIMUM_PROCESSES=10000

LICENSE

Copyright (C) Ettore Di Giacinto.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR

Ettore Di Giacinto <edigiacinto@suse.com>