Re: [Waba-spec] The registry, etc.

[Christian G. <chr...@sm...>]

Hello,

On Wed, Oct 17, 2001 at 03:59:58PM -0400, Sean Luke wrote:
> Here are my initial thoughts on the final Registry description.

Thank you for the feedback!

> 1. There is no reason why you shouldn't be able to skip negative bytes.  
> If you back up to position X, and then start writing, the Registry 
> should assume that everything after X is automatically deleted.

I modified 'skipBytes' accordingly. I am assuming that no platform will
have a problem with this (reel tapes are not that common on PDA's :-) ).

> 2. What happens if you delete the registry while it's open?  Can you 
> continue to write?  Would that recreate the registry (I assume not)?  Or 
> do you have to call getRegistry() again?

Reading/writing after having deleted the Registry is undefined; one should
re-obtain it. I modified the documentation accordingly.

> 3. There should be a function indicating the maximum feasible number of 
> bytes that the registry can hold.

I added a 'spaceAvailable()' method, which would return the amount of
registry space available at that moment. Is that what you had in mind?

> 4. I presume that the registry does not take locking into consideration: 
> if you have multiple instances of your application open, I presume the 
> result is undefined?  Which is fine, just as long as we state this.

Another good point. The result would indeed be undefined, and I modified
the documentation accordingly.


Let me know what you think.

Thanks,

-Christian