[MacRuby] #1323: memory leak occurs when use a exception which was inherited by Exception.

12 Jun 2011

      #1323: memory leak occurs when use a exception which was inherited by Exception.
----------------------------------+-----------------------------------------
 Reporter:  watson1978@…          |       Owner:  lsansonetti@…        
     Type:  defect                |      Status:  new                  
 Priority:  blocker               |   Milestone:                       
Component:  MacRuby               |    Keywords:                       
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 Test Script:
 {{{
 #!ruby
 def memory
   pid = $$
   str = `ps alx | grep '#{pid}.*ruby'`
   str.split[7]
 end

 Thread.start {
   sec = 0
   loop do
     puts "#{sec} sec : " + memory + " KB"
     sleep 10
     sec += 10
   end
 }
 #=====================
 class Custom_Exception < Exception
 end

 def foo
   begin
     bar
   rescue Custom_Exception
   end
 end

 def bar
   begin
     baz
   rescue
     #rescue Custom_Exception
     # does not catch the Custom_Exception
     puts "non Custom_Exception"
   end
 end

 def baz
   raise  Custom_Exception
 end

 loop do
   foo
 end
 }}}

 Result:
 {{{
 $ macruby raise.rb
 0 sec : 13744 KB
 10 sec : 494708 KB
 20 sec : 971928 KB
 30 sec : 1420644 KB
 40 sec : 1896572 KB
 }}}

 This problem seems to occur if does not catch the inherited Exception at
 first begin-rescue.

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/1323>
MacRuby <http://macruby.org/>