[REBOL] Re: Concurrent access to data file

[CRS - Psy Sel/SPO, COUSSEMENT Christophe, CPN]

> Hi,
> 
> the problem was discussed here some time before. 
        [sorry, I didn't got that]  
> You need some atomic
> operation, which cannot be successfully done by two processes at the
> same time. One such operation is in most OSes (including Windows NT)
> local file rename. Any operation on network drives (NetBios or NFS) is
> not atomic, so you cannot rely on it when synchronizing multiple PCs -
> file locking suggested by Brett Handley is reliable only with a local
> file, not a file on a network disk.
        [Now, I've learn something ! Thanks !]  

> I think that you should use TCP port on the server as suggested by
> Brett Handley. There are also several distributed mutual exclusion
> algorithms that don't require a central server, look at this paper for
> more information:
> http://www.cse.iitk.ac.in/~deepak/cs632/mutual-exclusion.ps
        [I'm not familiar with post-script files. Which soft do you use to
read it ?]  

> HTH,
> 
> -- 
> Michal Kracik
        [
        Thanks for your answer,

        chr==
        ]  


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