From: Keith Barr <keith.barr@...>
Date: 2008-02-22T06:56:34+09:00
Subject: Newbie Mem Leak Issue

I am fairly new to Ruby and a program that I have created seems to have
a memory leak.  I have generated a small program which does the basics
of my program that leaks, and the test program also seems to leak.  Can
anyone spot the design flaw?

Any help you can provide is greatly appreciated.

Thanks,
Keith


=================================
class LeakTest
  def initialize
    print("initialized\n")
    # fill up the standard 8M of space so the leak becomes apparent
faster
    str = "0123456789 0123456789 0123456789 0123456789 0123456789
0123456789 0123456789 0123456789 0123456789 0123456789 "
    @huge_mem = Array.new(1000000, str)
  end

  def get_files(pathname)
    listing = Array.new

    Dir.glob("#{pathname}/*",0) do |f|
      # add the files
      listing << f
      # now add directories.
      if(File.directory?(f))
        returnlist = get_files(f)
        returnlist.each {|filename| listing << filename }
      end
    end
    return listing
  end

  include GC
  def cleanup
    printf("cleaning up")
    GC.start
    5.times do
      print"."
      sleep(1)
    end
    print"\n"
  end

  def monitor
    listing = get_files("C:/Program Files")
    printf("Found %d files\n", listing.length)
    5.times do
      print"."
      sleep(1)
    end
    print"\n"
  end
end

lt = LeakTest.new
while true
  lt.monitor
  lt.cleanup
end
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