ruby - Timeout not working with IO on Windows

Question

The following code does not time out in Ruby 1.9.3p194 (2012-04-20) [i386-mingw32]:

require 'timeout'
Timeout.timeout(1) { gets }

I expected it to work since Ruby 1.9 uses native threads. Is this intended (or documented) behavior or a bug? In the documentation of Timeout there is no mention of any restriction wrt. blocking IO or whatever.

(According to the comments, this seems to be an issue of the Windows version only.)

Answer 1

It was a bug of the current Ruby 1.9.3 for Windows which had already been fixed in trunk. The fix has been backported into 1.9.3: http://bugs.ruby-lang.org/issues/6661.