lib/bindata/int.rb in bindata-2.4.3 vs lib/bindata/int.rb in bindata-2.4.4

@@ -1,19 +1,24 @@
+require 'thread'
 require 'bindata/base_primitive'
 
 module BinData
   # Defines a number of classes that contain an integer.  The integer
   # is defined by endian, signedness and number of bytes.
 
   module Int #:nodoc: all
+    @@mutex = Mutex.new
+
     class << self
       def define_class(name, nbits, endian, signed)
-        unless BinData.const_defined?(name)
-          BinData.module_eval <<-END
-            class #{name} < BinData::BasePrimitive
-              Int.define_methods(self, #{nbits}, :#{endian}, :#{signed})
-            end
-          END
+        @@mutex.synchronize do
+          unless BinData.const_defined?(name)
+            new_class = Class.new(BinData::BasePrimitive)
+            Int.define_methods(new_class, nbits, endian.to_sym, signed.to_sym)
+            RegisteredClasses.register(name, new_class)
+
+            BinData.const_set(name, new_class)
+          end
         end
 
         BinData.const_get(name)
       end