by Wayne Meissner http://kenai.com/projects/ruby-ffi
Ruby-FFI is a ruby extension for programmatically loading dynamic libraries, binding functions within them, and calling those functions from Ruby code. Moreover, a Ruby-FFI extension works without changes on Ruby and JRuby. Discover why should you write your next extension using Ruby-FFI here.
It has a very intuitive DSL
It supports all C native types
It supports C structs (also nested), enums and global variables
It supports callbacks
It has smart methods to handle memory management of pointers and structs
require 'ffi' module MyLib extend FFI::Library attach_function :puts, [ :string ], :int end MyLib.puts 'Hello boys using libc!'
For less minimalistic and more sane examples you may look at:
You need a sane building environment in order to compile the extension.
[sudo] gem install ffi
or from the mercurial repository on Kenai:
hg clone https://kenai.com/hg/ruby-ffi~mercurial ruby-ffi cd ruby-ffi rake gem:install
Special thanks to:
See LICENSE file.