module MatlabRuby

# File lib/matlab_ruby.rb, line 10
def self.initialize(matlab_dll_dir = ENV['MATLAB_RUBY_LIBS_PATH'])
  ffi_lib "#{matlab_dll_dir}/libeng.so"
  attach_function :engOpen,         [:string], :pointer
  attach_function :engClose,        [:pointer], :int
  attach_function :engPutVariable,  [:pointer, :string, :pointer ], :int
  attach_function :engGetVariable,  [:pointer, :string], :pointer
  attach_function :engEvalString,   [:pointer, :string ], :int

  ffi_lib "#{matlab_dll_dir}/libmx.so"
  attach_function :mxGetNumberOfFields,  [:pointer], :int

  attach_function :mxGetScalar, [:pointer], :double
  attach_function :mxGetChars,  [:pointer], :pointer
  attach_function :mxGetString, [:pointer, :pointer, :int], :int
  attach_function :mxGetN,      [:pointer], :int

  attach_function :mxCreateDoubleMatrix, [:int, :int, :int], :pointer
  attach_function :mxDestroyArray,       [:pointer], :void
  attach_function :mxGetClassName,       [:pointer], :string

  ffi_lib FFI::Library::LIBC
  attach_function :malloc, [:size_t], :pointer
  attach_function :free,   [:pointer], :void
end

# File lib/matlab_ruby.rb, line 35
def self.start_engine(matlab_start_arguments = "-nosplash -nodisplay -nojvm")
  engOpen "matlab #{matlab_start_arguments}"
end

# File lib/matlab_ruby.rb, line 39
def self.stop_engine(engine_ref)
  engClose engine_ref
end