NAME AnyEvent::Worker - Manage blocking task in external process SYNOPSIS use AnyEvent 5; use AnyEvent::Worker; my $worker1 = AnyEvent::Worker->new( [ 'Actual::Worker::Class' => @init_args ] ); my $worker2 = AnyEvent::Worker->new( sub { return "Cb 1 @_"; } ); my $worker3 = AnyEvent::Worker->new( { class => 'Actual::Worker::Class2', new => 'create', # alternative constructor args => [qw(arg1 arg2)], } ); # Invoke method `test' on Actual::Worker::Class with arguments @args $worker1->do( test => @args , sub { return warn "Request died: $@" if $@; warn "Received response: @_"; }); # Just call callback, passed to worker2 with arguments @args $worker2->do( @args , sub { return warn "Request died: $@" if $@; warn "Received response: @_"; }); CONSTRUCTOR new $cb->($req), %args Simple stateless worker. On any "do" a sub sill be invoked with "do" arguments new [ Class => @new_args ], %args Stateful, object-based worker. After fork, Class will we "use"d, then instantiated with new(@new_args). First argument to "do" will be interpreted as object method, rest -- as method arguments. new { class => 'Class', args => \@new_args, new => 'constructor_method' }, %args Same as previous, but allow to pass optional constructor name in "new" arg $args{on_error} = $cb->($worker,$error,$fatal,$file,$line) When an unexpected error occurs (for ex: child process exited or killed) "on_error" callback will be invoked METHODS do @args, $cb->($res) Only for stateless worker. do method => @args, $cb->($res) Only for stateful worker. METHODS $worker->on_error ($cb->($worker, $filename, $line, $fatal)) Sets (or clears, with "undef") the "on_error" handler. $worker->timeout ($seconds) Sets (or clears, with "undef") the database timeout. Useful to extend the timeout when you are about to make a really long query. $worker->do ( @args, $cb->( $worker, @response ) ) Executes worker code and execure the callback, when response is ready AUTHOR Mons Anderson, "" ACKNOWLEDGEMENTS This module based on Marc Lehmann's AnyEvent::DBI Thanks to Vladimir Timofeev "" for bugfixes and useful notes