gistfile1.txt

deploy@foxtrot:~$ uname -a
Linux XXXXXXX 2.6.35.4-rscloud #8 SMP Mon Sep 20 15:54:
33 UTC 2010 x86_64 GNU/Linux
deploy@foxtrot:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 10.04.3 LTS
Release:        10.04
Codename:       lucid

1.9.3p327 :002 > puts RUBY_VERSION
1.9.3
 => nil 
1.9.3p327 :003 > (1..10).each do |i|
1.9.3p327 :004 >       passes = true
1.9.3p327 :005?>     begin
1.9.3p327 :006 >           (rp, wp) = IO.pipe
1.9.3p327 :007?>         wp.write_nonblock ("F" * i) while(select [], 
wp], [], 0)
1.9.3p327 :008?>       rescue Errno::EAGAIN
1.9.3p327 :009?>         puts "#{i}: FAIL"
1.9.3p327 :010?>         passes = false
1.9.3p327 :011?>       ensure
1.9.3p327 :012 >           rp.close
1.9.3p327 :013?>         wp.close
1.9.3p327 :014?>       end
1.9.3p327 :015?>     puts "#{i}: PASS" if passes
1.9.3p327 :016?>   end
1: PASS
2: PASS
3: PASS
4: PASS
5: PASS
6: PASS
7: PASS
8: PASS
9: PASS
10: PASS
 => 1..10