generate and save a string defining the struct timeval as a FFI struct

Author: chuckremes

library/ffi/generators/structures.rb

@@ -159,6 +159,14 @@ def write_config(io)
         @fields.each { |field| io.puts field.to_config(@name) }
       end
 
+      def write_class(io)
+        layout = generate_layout.gsub(/\n/, '').squeeze(' ')
+        struct_name = @struct_name.split(' ').last.capitalize + "_t"
+        struct_class = "class #{struct_name} < FFI::Struct; #{layout}; end"
+
+        io.puts "rbx.platform.#{@name}.class = #{struct_class}"
+      end
+
       def generate_layout
         buf = ""
 

rakelib/platform.rake

@@ -62,7 +62,7 @@ file 'runtime/platform.conf' => deps do |task|
       s.name 'struct timeval'
       s.field :tv_sec, :time_t
       s.field :tv_usec, :suseconds_t
-    end.write_config(f)
+    end.tap { |struct| struct.write_config(f); struct.write_class(f) }
 
     Rubinius::FFI::Generators::Structures.new 'sockaddr_in' do |s|
       if BUILD_CONFIG[:windows]