1FFI::Platypus::Closure(U3s)er Contributed Perl DocumentatFiFoIn::Platypus::Closure(3)
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NAME

6       FFI::Platypus::Closure - Platypus closure object
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VERSION

9       version 0.94
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SYNOPSIS

12       create closure with OO interface
13
14        use FFI::Platypus::Closure;
15        my $closure = FFI::Platypus::Closure->new(sub { print "hello world\n" });
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17       create closure from Platypus object
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19        use FFI::Platypus;
20        my $ffi = FFI::Platypus->new;
21        my $closure = $ffi->closure(sub { print "hello world\n" });
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23       use closure
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25        $ffi->function(foo => ['()->void'] => 'void')->call($closure);
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DESCRIPTION

28       This class represents a Perl code reference that can be called from
29       compiled code.  When you create a closure object, you can pass it into
30       any function that expects a function pointer.  Care needs to be taken
31       with closures because compiled languages typically have a different way
32       of handling lifetimes of objects.  You have to make sure that if the
33       compiled code is going to call a closure that the closure object is
34       still in scope somewhere, or has been made sticky, otherwise you may
35       get a segment violation or other mysterious crash.
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CONSTRUCTOR

38   new
39        my $closure = FFI::Platypus::Closure->new($coderef);
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41       Create a new closure object; $coderef must be a subroutine code
42       reference.
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METHODS

45   call
46        $closure->call(@arguments);
47        $closure->(@arguments);
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49       Call the closure from Perl space.  May also be invoked by treating the
50       closure object as a code reference.
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52   sticky
53        $closure->sticky;
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55       Mark the closure sticky, meaning that it won't be free'd even if all
56       the reference of the object fall out of scope.
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58   unstick
59        $closure->unstick;
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61       Unmark the closure as sticky.
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AUTHOR

64       Author: Graham Ollis <plicease@cpan.org>
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66       Contributors:
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68       Bakkiaraj Murugesan (bakkiaraj)
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70       Dylan Cali (calid)
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72       pipcet
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74       Zaki Mughal (zmughal)
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76       Fitz Elliott (felliott)
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78       Vickenty Fesunov (vyf)
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80       Gregor Herrmann (gregoa)
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82       Shlomi Fish (shlomif)
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84       Damyan Ivanov
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86       Ilya Pavlov (Ilya33)
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88       Petr Pisar (ppisar)
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90       Mohammad S Anwar (MANWAR)
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93       This software is copyright (c) 2015,2016,2017,2018,2019 by Graham
94       Ollis.
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96       This is free software; you can redistribute it and/or modify it under
97       the same terms as the Perl 5 programming language system itself.
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101perl v5.30.0                      2019-07-26         FFI::Platypus::Closure(3)
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