From: SASADA Koichi <ko1@...>
Date: 2007-11-17T06:37:58+09:00
Subject: Re: Suggestion for native thread tests

Hi,

Eust�quio Rangel wrote:
> I'm checking 1.9 and I'm curious for some test which shows me that there
> are really native threads there.
> 
> I made a test with two threads reading two files and one reading a FIFO,
> but seems that the FIFO is blocking the other threads. Is this a valid
> test for native threads? Using Java it works as expected. Here's the code:
> 
> files    = %w(thread_test.txt thread_test.fifo thread_test2.txt)
> threads  = []
> 
> files.each_with_index do |item,index|
>    threads << Thread.new do
>       while true
>          puts "(#{index}) Reading #{item} on #{Time.now} ..."
>          puts File.read(item)
>          puts "-"*50
>          sleep 1
>       end
>    end
> end
> threads.first.join
> 
> Using an updated 1.9 it still blocks when reading the FIFO.
> I need some suggestion of some test to prove that the native threads are
> there. :-)

I can't understand what do you mean.  Where is a FIFO?  On my
laptop, this code doesn't block, but continues to show file contents.

-- 
// SASADA Koichi at atdot dot net