[mapguide-users] Crash in MapGuide Web Extensions upon web server shutdown

[Jackie Ng]

You might want to cross-post this to mapguide-internals as well given the
somewhat technical subject matter.

Not a true multi-threading expert here, but I do know that any
variables/members in MapGuide that can be accessed from multiple threads are
usually protected by mutexes. An ACE_MT(ACE_GUARD(...)) macro does the mutex
locking and any code following that in the same block is a thread-safe
critical section.

I also see a MgSiteManager::StopCheckServersThread() that supposedly stops
the background thread, but I can't see anything in the Web Tier that calls
into this. Perhaps this is what MgUninitializeWebTierInternal() should also
be calling?

- Jackie



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