From: Yukihiro Matsumoto <matz@...>
Date: 2009-01-30T02:50:57+09:00
Subject: Re: Errno::ENOMEM reading a device in Ruby, not in Java though

Hi,

In message "Re: Errno::ENOMEM reading a device in Ruby, not in Java though"
    on Thu, 29 Jan 2009 14:47:11 +0900, Heesob Park <phasis@gmail.com> writes:

|The another difference between ruby and java is read buffer size.
|Ruby's buffer size is 4096 and java's buffer size is 65536.
|
|The man page of st says:
|
|RETURN VALUE
|
|       ENOMEM        The byte count in read() is smaller than the next  physi-
|                     cal block on the tape. (Before 2.2.18 and 2.4.0-test6 the
|                     extra bytes have been silently ignored.)

I didn't know that.  In that case, you have to pre-allocate reading
buffer (string) and specify it to read method.

							matz.