* ext/fiddle/*: Adding fiddle library to wrap libffi

* test/fiddle/*: testing fiddle extension
* ext/dl/lib/dl.rb: Requiring fiddle if it is available
* ext/dl/lib/dl/callback.rb: using Fiddle if it is available
* ext/dl/lib/dl/func.rb: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27640 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 3 deletions

diff --git a/ext/dl/lib/dl/import.rb b/ext/dl/lib/dl/import.rb
index 199354c18e..fd23bc9676 100644
--- a/ext/dl/lib/dl/import.rb
+++ b/ext/dl/lib/dl/import.rb
@@ -211,9 +211,17 @@ module DL
     end
 
     def bind_function(name, ctype, argtype, call_type = nil, &block)
-      f = Function.new(CFunc.new(0, ctype, name, call_type || :cdecl), argtype)
-      f.bind(&block)
-      f
+      if DL.fiddle?
+        closure = Class.new(Fiddle::Closure) {
+          define_method(:call, block)
+        }.new(ctype, argtype)
+
+        Function.new(closure, argtype)
+      else
+        f = Function.new(CFunc.new(0, ctype, name, call_type || :cdecl), argtype)
+        f.bind(&block)
+        f
+      end
     end
 
     def create_temp_function(name, ctype, argtype, call_type = nil)