[ruby-core:23354] Ruby/DL Documentation

Hello,


recently i have been trying to learn and use dl library. while searching i found this excellent link
http://www.jbrowse.com/text/rdl_en.html

unfortunately it is specific to 1.8.x

i wonder how people here use DL, since it is very scarcely documented. i have been trying to 
hack around ./ext/dl/*.c files but i have gained very little usable information.

ok, my question is about passing an array from ruby to some native libraries (IPP(http://software.intel.com/en-us/intel-ipp/) to be specific)
on windows. yes i about other alternatives, i could embed ruby in my app and do whatever, there is gr8 support there
but this is about quickly loading and using native libraries via dynamic loader.

consider code below
some_fast_math_function( float* array, int len);

then how to pass 'array' argument from ruby ?
i tried this

require 'dl'

module NativeLibs
# do the job for accessing some_fast_math_function
end

array = DL.malloc(size)
NativeLibs.some_fast_math_function( array, size) # crashes :(

some how sucess is elusive for me, this crashes(core dumps) for me, i am sure this is due to my inexperienced stunts with DL

Aston


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