From: Noam Noam <noam_abda@...>
Date: 2006-08-31T00:03:12+09:00
Subject: Re: problem using pstore with multi-users

thanks Kirk,
i didn't understand what do you meen by "under a user "
how can i solve this problem?
the output error "premisson denied" pops up from some of the threads 
(randomally) and not from all of them, so i figured its because to many 
threads attemps to write to the pstore file in the same time, isn't it?
Thanks again,
Noam

unknown wrote:
> On Wed, 30 Aug 2006, Noam Noam wrote:
> 
>> Hi all,
>> when i'm using pstore with multi-users:
>> Permission denied - ../comments.dat.new
>> it seems that more then one user is asking to use the same file.
>> i tried to use synchronize  for locking the transaction until it finsh,
>> but it seems that i can not using it when i using pstore.
>> any one having any idea???
>> Thanks.
> 
> pstore doesn't itself do any locking of any sort.
> 
> If you have multiple threads or processes that might try to use pstore 
> on
> the same file at the same time, you will have to handle the locking
> yourself.
> 
> If you aren't on Windows, I suggest Ara Howard's lockfile.rb if you are
> doing multiprocess work.  If it is multithreaded, you certainly can use 
> a
> mutex to synchronize access.
> 
> http://codeforpeople.com/lib/ruby/lockfile/
> 
> However, permission denied suggests a simple file permissions problem 
> that
> locking will not solve, so I suggest you take a look at whether you 
> might
> accidentally be be creating the pstore file under a user or with
> permissions that you don't intend.
> 
> 
> Kirk Haines


-- 
Posted via http://www.ruby-forum.com/.