From: Kero van Gelder <kero@...>
Date: 2003-08-03T05:22:14+09:00
Subject: Re: 1.8.0-previewX  rb_sys_fail() on socket instead of an Exception.

> Aha, I understand.  If I move clearerr() before rb_sys_fail(), will it
> solve the problem?
> 
> 							matz.
> --- io.c	1 Aug 2003 07:23:00 -0000	1.227
> +++ io.c	2 Aug 2003 17:59:02 -0000
> @@ -910,5 +910,5 @@ appendline(fptr, delim, strp)
>  	    if (ferror(f)) {
> +		clearerr(f);
>  		if (!rb_io_wait_readable(fileno(f)))
>  		    rb_sys_fail(fptr->path);
> -		clearerr(f);
>  		continue;

Interestingly, the program now never stops with printing 'nil' (as if the
Thread is never switched; the second loop in server.rb (with socket.puts
in it) isn't processed anymore).

Even if I put a small sleep directly after gets, and the CPU usage drops
from 100% to negligible, the second loop is not scheduled anymore.

Thanks,
Kero.