1IO::Async::Future(3) User Contributed Perl Documentation IO::Async::Future(3)
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6 "IO::Async::Future" - use Future with IO::Async
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9 use IO::Async::Loop;
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11 my $loop = IO::Async::Loop->new;
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13 my $future = $loop->new_future;
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15 $loop->watch_time( after => 3, code => sub { $future->done( "Done" ) } );
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17 print $future->get, "\n";
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20 This subclass of Future stores a reference to the IO::Async::Loop
21 instance that created it, allowing the "await" method to block until
22 the Future is ready. These objects should not be constructed directly;
23 instead the "new_future" method on the containing Loop should be used.
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25 For a full description on how to use Futures, see the Future
26 documentation.
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29 New "IO::Async::Future" objects should be constructed by using the
30 following methods on the "Loop". For more detail see the
31 IO::Async::Loop documentation.
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33 $future = $loop->new_future
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35 Returns a new pending Future.
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37 $future = $loop->delay_future( %args )
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39 Returns a new Future that will become done at a given time.
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41 $future = $loop->timeout_future( %args )
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43 Returns a new Future that will become failed at a given time.
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46 loop
47 $loop = $future->loop
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49 Returns the underlying IO::Async::Loop object.
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51 done_later
52 $future->done_later( @result )
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54 A shortcut to calling the "done" method in a "later" idle watch on the
55 underlying Loop object. Ensures that a returned Future object is not
56 ready immediately, but will wait for the next IO round.
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58 Like "done", returns $future itself to allow easy chaining.
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60 fail_later
61 $future->fail_later( $exception, @details )
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63 A shortcut to calling the "fail" method in a "later" idle watch on the
64 underlying Loop object. Ensures that a returned Future object is not
65 ready immediately, but will wait for the next IO round.
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67 Like "fail", returns $future itself to allow easy chaining.
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70 Paul Evans <leonerd@leonerd.org.uk>
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74perl v5.32.1 2021-01-27 IO::Async::Future(3)