Rubyinstaller devel - Nov 2008 - overcoming readline''s cpu

appears you can somewhat avoid the ''irb 100% cpu''
by changing lib\irb\input-method.rb

from
      def gets
        if l = readline(@prompt, false)
          ...
to
      def gets
        print @prompt
        if l = $stdin.gets
          ...

Which at least doesn''t use 100% cpu :)
Wonder if any other libraries have found this weirdness with readline
+ mingw...and why it doesn''t happen sometimes. Odd.  msvcrt versioning
weirdness?

-=R

On Sun, Nov 23, 2008 at 12:39 AM, Roger Pack <rogerpack2005 at gmail.com>
wrote:
> appears you can somewhat avoid the ''irb 100% cpu''
> by changing lib\irb\input-method.rb
>
> from
>      def gets
>        if l = readline(@prompt, false)
>          ...
> to
>      def gets
>        print @prompt
>        if l = $stdin.gets
>          ...
>
Doing that you loose the readline autocompletion functionality
> Which at least doesn''t use 100% cpu :)
> Wonder if any other libraries have found this weirdness with readline
> + mingw...and why it doesn''t happen sometimes. Odd.  msvcrt
versioning
> weirdness?
No, is GNU Readline issue and linking to a different version of
readline. Going to 4.2 instead of 5 version doesn''t produce that CPU
usage.

FYI.
-- 
Luis Lavena
AREA 17
-
Human beings, who are almost unique in having the ability to learn from
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