Re: libcrm114 ready - but can't get into sourceforge --> libcrm114 usage and the p_db's

=?ISO-8859-15?Q?Jaakko_Hyv=E4tti?= <[email protected]> writes:

> The signal could be a byte in db, which the classifier checks before each 
> operation.
>
> 1. Writer: write new db
> 2. Writer: open old db
> 3. Writer: rename new db to old filename
> 4. Writer: write signal flag to old open db filehandle.
> 5. Writer: close old db filehandle.
> 6. Reader: check flag before every operation, or every now and then.
>
> How does this work over nfs3, nfs4 etc..?

It doesn't work.  NFSen do not support guaranteed visibility of 
updates.  (been down that rathole before...)  Heck, they don't 
even support sequential atomicity of directory contents...

          - Bill


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