From: Lothar Scholz <mailinglists@...>
Date: 2004-03-14T04:28:00+09:00
Subject: Re: How to write a blocking ruby function in c ?

Hello Paul,

Friday, March 12, 2004, 9:17:19 PM, you wrote:

PB> I think what you want is something like this:

PB>   1. See if you have data waiting; if you do read and return.
Right.

PB>   2. If there is no data waiting, then call rb_thread_select with your
PB>      file descriptor to wait on data.
The problem is that the data is comming from another thread, and i
don't have a file descriptor. But it seems that there is really only
the chance of using a file descriptor, maybe a pipe on Linux. But
"select" does not work on pipes or file descriptors. So what can i do
here ? I'm very sure that writing a socket server and a client just
for wake up purpose is an overkill.

In the end someone must rewrite the braindead event loop model. I just
found that TCL is now offering asynchronous write/read operation which
gives a huge performance increase. It's always disappointing that the
implementation of Ruby looks like it is the worst of the currently
available main stream script language.



-- 
Best regards,
 Lothar                            mailto:mailinglists@scriptolutions.com