2011/3/28 Eric Wong <normalperson / yhbt.net>:
>
> Issue #4532 has been reported by Eric Wong.
>
> ----------------------------------------
> Feature #4532: [PATCH] add IO#pread and IO#pwrite methods
> http://redmine.ruby-lang.org/issues/4532
>
> Author: Eric Wong
> Status: Open
> Priority: Normal
> Assignee:
> Category: core
> Target version: 1.9.x
>
>
> These methods are useful for safe/concurrent file I/O in
> multi-thread/process environments and also fairly standard
> nowadays especially in systems supporting pthreads.
>
> pread() is already used internally for IO.copy_stream

Do we really need to introduce new method? Why can't we overload
IO.read and IO.write?
too complex?

I agree "offset" argument is useful. But I'm not convinced this API
design is best. The description
is too quiet.

Ok, back to meta reviewing comments. All new API proposal need to
explain why this way
is best and need to persuade matz.