This change affects GenericMap only, as it's used globally in a few places and we have a proven crash there.
I have a more complete solution (total cleanup of default accessors from BePlusTree and SparseBitmap) in my local tree (thanks to Dmitry Kovalenko), but it's incomplete (requires more changes inside the engine) and IMHO risky (~20 core modules are affected), so I'd like to defer finalization of this cleanup till v3.0.
All objects of these types seem being protected by dbb_sync, so they shouldn't cause us any problems currently.
The new code is expected to work 100-200 times faster. To be field-tested.
Implemented CORE-2233: Allow non-SYSDBA users to monitor not only their current attachment but other their attachments as well.
Sorry for mixing two fixes inside a single commit, but they're somewhat related.
Ability to stop execution of external query when :
- engine is shutted down
- database is shutted down
- local statement is cancelled
- local connection is cancelled
related with local events from isc_sync.cpp.
2. Cleanup - removed unused parameter 'number of events' from ISC_event_wait()
and two unused parameters from ISC_event_init().
3. Added SYSV-semaphore based implementation of IPC to isc_sync.cpp.
This should fix CORE-2102: Firebird 2.5 does not build on MacOS (Darwin).
4. Fixed use of posic CS without (x)inetd (i.e. fb_inet_server -s).
5. Fixed (to be reviewed by Dmitry) recovery after some process death in lock manager.
2) Replaced "early" (before LM) checkouts with "late" (inside LM) ones.
3) Removed the mutex protection that's no longer necessary.
Note: the new LM contains some future code (currently commented out) which will be enabled and tested after the Alpha release.
1) Make memory counters aggregated.
2) Add attachment pool and allocate appropriate resources out of this pool.
3) Always release attachments explicitly (via destructor).
4) Always delete user requests prior to attachment deletion.
5) Introduce memory usage counters per every monitoring object.
6) Misc refactoring.
Some pieces are still incomplete (although everything basically works), but I'd like to get feedback and testing sooner rather than later.
Move active requests cancellation at engine shutdown from Y-valve into engine and let them stop execution before deletion of attachments.
Make sweep run in separate thread despite of engine architecture.
