FFI::Platypus::Type::PointerSizeBuffer - Convert string scalar to a buffer as a pointer / size_t

       Author: Graham Ollis <plicease@cpan.org>

       Contributors:

       Bakkiaraj Murugesan (bakkiaraj)

       Dylan Cali (calid)

       pipcet

       Zaki Mughal (zmughal)

       Fitz Elliott (felliott)

       Vickenty Fesunov (vyf)

       Gregor Herrmann (gregoa)

       Shlomi Fish (shlomif)

       Damyan Ivanov

       Ilya Pavlov (Ilya33)

       Petr Písař (ppisar)

       Mohammad S Anwar (MANWAR)

       Håkon Hægland (hakonhagland, HAKONH)

       Meredith (merrilymeredith, MHOWARD)

       Diab Jerius (DJERIUS)

       Eric Brine (IKEGAMI)

       szTheory

       José Joaquín Atria (JJATRIA)

       Pete Houston (openstrike, HOUSTON)

       Lukas Mai (MAUKE)

       This software is copyright (c) 2015-2022 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.

perl v5.40.0                                       2025-01-11             FFI::Platypus::...interSizeBuffer(3pm)

       A common pattern in C code is to pass in a region of memory as a buffer, consisting of a pointer and a
       size of the memory region.  In Perl, string scalars also point to a contiguous series of bytes that has a
       size, so when interfacing with C libraries it is handy to be able to pass in a string scalar as a pointer
       / size buffer pair.

       FFI::Platypus::Type::PointerSizeBuffer - Convert string scalar to a buffer as a pointer / size_t
       combination

       FFI::Platypus
           Main Platypus documentation.

       FFI::Platypus::Type
           Platypus types documentation.

       In your C code:

        void
        function_with_buffer(void *pointer, size_t size)
        {
          ...
        }

       In your Platypus::FFI code:

        use FFI::Platypus 2.00;

        my $ffi = FFI::Platypus->new( api => 2 );
        $ffi->load_custom_type('::PointerSizeBuffer' => 'buffer');

        $ffi->attach(function_with_buffer => ['buffer'] => 'void');
        my $string = "content of buffer";
        function_with_buffer($string);

       version 2.10