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NAME

FFI::Raw::Callback - FFI::Platypus::Legacy::Raw function pointer type

VERSION

version 0.04

DESCRIPTION

A FFI::Raw::Callback represents a function pointer to a Perl routine. It can be passed to functions taking a FFI::Raw::ptr type.

CONSTRUCTOR

new

 my $callback = FFI::Raw::Callback->new( $coderef, $ret_type, @arg_types );

Create a FFI::Raw::Callback using the code reference $coderef as body. The signature (return and arguments types) must also be passed.

CAVEATS

For callbacks with a FFI::Raw::str return type, the string value will be copied to a private field on the callback object. The memory for this value will be freed the next time the callback is called, or when the callback itself is freed. For more exact control over when the return value is freed, you can instead use FFI::Raw::ptr type and return a FFI::Raw::MemPtr object.

AUTHOR

Graham Ollis <plicease@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2019 by Graham Ollis.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.