Module: DL

Defined in:
lib/aalib.rb

Overview

:nodoc:all

Defined Under Namespace

Classes: PtrData

Class Method Summary collapse

Class Method Details

.tryopen(libs) ⇒ Object

Attempts to open each library in the Array libs with DL.dlopen. Returns the first that is successfully opened. This is a convenience function for compatibility with different platforms where the dynamic library may be named differently.



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# File 'lib/aalib.rb', line 24

def tryopen(libs)
  dllib = nil
  errs = Array.new

  libs.each do |lib|
    begin
      dllib = DL.dlopen lib
    rescue => err
      errs << err
    end
    break if dllib
  end

  unless dllib
    msg = errs.collect{ |e| e.message }.join('; ')
    raise RuntimeError.new("failed to open library: (#{msg})")
  else
    dllib
  end
end