Re: Defaults being destroyed (Solved?)

[Stefan Urbanek]

On 2002-08-27 11:05:56 +0400 Alexey I. Froloff <raorn@binec.ru> wrote:

> On Tue, Aug 27, 2002 at 07:15:07AM +0100, Stefan Urbanek wrote:
> [/dev/null]
> > It seems, that if a program does not see some domain in
> > database at program startup, it will not write it back. It
> > may be a problem in -[NSUserDefaults synchronize] I think,
> > but I am not sure.
> -[NSUserDefaults synchronize] uses NSLock than works between
> threads but not processes. Writinig defaults database is not
> atomic operation.
>
> I think solution can be in using NSDistributedLock, but
> timeout is needed in case some program dies when writing this
> file...

This might be also an addition to the solution.

I have attached a patch for NSUserDefaults that seems to fix the problem. 
Attached is also the testing script. But it needs more testing.

Stefan


<NSUserDefaults.m.patch><test>

NSUserDefaults.m.patch
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test
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