Ruby wrapper over a existing C library

Question

I want write a ruby wrapper for a existing C library (.so files). Can anyone point me to books/websites that can get me started with this.

Thanks,
Sivakumar

Answer 1

Take a look at FFI gem.

Answer 2

You have several options:

• swig / hand written C extension but those won't be usable in other VM than MRI (won't work in jruby, rubinius...)

• FFI which will be usable on other VM. example here