NAME Parallel::QueueWorker - Simple worker support do jobs in parallel processes. SYNOPSIS use Parallel::QueueWorker; my $worker = Parallel::QueueWorker->new( # config file will load configfile => "$FindBin::Bin/../etc/app.yml", # callback/handler # loop to prepare job queue prepare_queue => sub { my ($self) = @_; $self->add_job({_id => $_ }) for (0..99); $self->{done} = 1 unless $self->{done}; # if you return non-zero , the prepare_queue will loop next, unless ($self->{done}) { $self->{done} = 1; return 100; } # this will flag no jobs queued anymore and break prepare_queue loop. # but, not, this is invoke again! return 0; }, # before call work will run this. before_work = sub { my ($self); # If you want to open resource,like socket,dbi, should in here. }, # work code work => sub { my ($self,$job) = @_; $self->say("job id:",$job->{_id}); }, ); DESCRIPTION METHODS run $worker->run; Start to process jobs , it will wait until all queued jobs done. add_job($job) # add job to queue $worker->add_job({_id => 3,foo => 'bar'}); Add job to the internal job queue. You should call this on prepare_queue callback. before_work(CodeRref) Callback will invoke before call work. work(CodeRref) work prototype => sub { my ($self,$job ) } Your work code, this code will fork and parallel running to process job. prepare_queue(CodeRref) The code to feed jobs into queue. If return non-zero, this code will invoke again after work, until it return 0, so you can make the code loop run or just once. say A helpful function to output message handy, additional master or worker PID. $self->say('hello'); # in master, output,xxxx meant master PID master xxxx >> hello # in worker, output,xxxx meant worker(childen process) PID worker xxxx >> hello fork_work Internal, fork workers and process queued jobs until jobs all done. run $worker->run; Start to run, its will call prepare_queue code, if any job is queued, then fork workers to process them in parallel. AUTHOR Night Sailer(Pan Fan) < nightsailer{at}gmail dot com > COPYRIGHT copyright nightsailer.com LICENSE This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.