We need mutexes in the event system

[Stefan (metze) Metzmacher]

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Andrew Bartlett schrieb:
> I'm trying to avoid running heimdal code from within heimdal code - as
> this leads to data corruption.  (It just doesn't expect to have data
> structures modified while talking to the KDC).
> 
> This is my first attempt at adding in a mutex system - flawed, because
> the second time we run across the mutex, we deadlock until we timeout.
> But we do need a way to handle this, preferably in a generic way.
> 
> I presume we will end up with a linked list of callbacks to be called
> after each time the mutex becomes available.  
> 
> Thoughts?

Hi Andrew,

I'll comment tomorrow...

metze
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