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Manual Reference Pages  -  IO::ASYNC::FUTURE (3)

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NAME

"IO::Async::Future" - use Future with IO::Async

CONTENTS

SYNOPSIS



 use IO::Async::Loop;

 my $loop = IO::Async::Loop->new;

 my $future = $loop->new_future;

 $loop->watch_time( after => 3, code => sub { $future->done( "Done" ) } );

 print $future->get, "\n";



DESCRIPTION

This subclass of Future stores a reference to the IO::Async::Loop instance that created it, allowing the await method to block until the Future is ready. These objects should not be constructed directly; instead the new_future method on the containing Loop should be used.

For a full description on how to use Futures, see the Future documentation.

CONSTRUCTORS

New IO::Async::Future objects should be constructed by using the following methods on the Loop. For more detail see the IO::Async::Loop documentation.



   $future = $loop->new_future



Returns a new pending Future.



   $future = $loop->delay_future( %args )



Returns a new Future that will become done at a given time.



   $future = $loop->timeout_future( %args )



Returns a new Future that will become failed at a given time.

METHODS

    loop



   $loop = $future->loop



Returns the underlying IO::Async::Loop object.

    done_later



   $future->done_later( @result )



A shortcut to calling the done method in a later idle watch on the underlying Loop object. Ensures that a returned Future object is not ready immediately, but will wait for the next IO round.

Like done, returns $future itself to allow easy chaining.

    fail_later



   $future->fail_later( $exception, @details )



A shortcut to calling the fail method in a later idle watch on the underlying Loop object. Ensures that a returned Future object is not ready immediately, but will wait for the next IO round.

Like fail, returns $future itself to allow easy chaining.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>
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perl v5.20.3 IO::ASYNC::FUTURE (3) 2015-12-15

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