From: Yusuke ENDOH <mame@...>
Date: 2010-02-25T00:07:43+09:00
Subject: [ruby-core:28328] Re: [Bug:trunk] add explicit constraints for 	WONTFIX IO bug

Hi,

2010/2/24 Tanaka Akira <akr@fsij.org>:
>> These behaviors are caused by bug of core's wrong buffering handing.
>
> I think it is difficult to fix.
>
*snip*
>
> I think we should live with this behavior because
> buffering is important for performance.


OK, I agree.

Then, what should user care to avoid bizarre behavior?  IOW, what behavior
can be guaranteed?  How about:

  User must not read/write at the time multiple IOs that share the same
  file descriptor or duplicated file descriptor.


Anyway, I think we agreed these bizarre behaviors are WONTFIX.
IO#reopen's spec in rubyspec fails because of this.  I'll soon quarantine!
the spec.

-- 
Yusuke ENDOH <mame@tsg.ne.jp>