From: ahoward <ahoward@...>
Date: 2003-01-27T02:13:59+09:00
Subject: Re: solaris porting problem -- flock failure?

On Sun, 26 Jan 2003, Joel VanderWerf wrote:

<snip>
> I'm having trouble porting some multi-thread, multi-process code from
> linux to solaris. I've already dealt with (or tried to deal with) some
> differences in flock (solaris flock is based on fcntl locks), like the
> fact that closing a file releases locks on the file held by other threads.
</snip>

you may want to try something like

  f.sync = true

because neither fflush nor close are required to flush data to disk - only to
kernel space so perhaps the solaris os is buffing too well and you need to
force the data to disk before the next read.

also, and i may be wrong on this, it looks like the implementation of
rb_file_flock should not cause the thread to block, but should send it into a
busy wait - are you sure that failing to aquire the lock blocked _all_
threads?

-a

ps.  i have to agree with guy that this program is a _long_ way from being
fairly simply

-- 

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