1) Fixed CORE-1696 - "Deadlock in LM by using nbackup utility" with priority rating of lock requesting for LCK_backup_database and LCK_bdb.
2) A lot of stability fixes were made.
3) The key thing is using new GlobalRWLock for removing LCK_set_owner_handle function and speed up performance.
4) The code is still ready for using both in shared cache architecture and in claster architecture.
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
and CORE-1079: Every attach of fbclient/fbembed library leaks 64KB of memory
To do it:
- created new template GlobalPtr, controlling access to destructors of global objects.
- applied it to global objects.
Also some related cleanup.
The change in CCH allows to report isc_shutdown instead of the LM error code in Classic (GFIX depends on this behaviour).
Also, refactored the SHUT logic a bit to assert on unexpected shutdown modes.
2. Fixed a couple of old problems, when sysdba could perform operations, but
database owner - could not.
3. Fixed CORE-84 - nbackup operations were allowed for everybody who can login
to the given database.
4. Disabled creating shadows and adding additional DB-files for non super-user.
Sixth step: remove the places protected by the macro PC_ENGINE. More to come. (I guess all of you who have pending functional changes to post will love this commit. <g>)
2.- Put inside PC_ENGINE several data members that belong to that feature.
3.- Put inside PC_ENGINE the code that does cleanup on those unused data members.
- redundant attempts to get an exclusive database lock
- wrong timeout counting
- database lock is not released after bringing database online in the exclusive mode
- removed a 5 sec timeout when bringing database online in the shared mode
PandoraBox* pbox = reinterpret_cast<PandoraBox*>(&can_of_worms);
pbox->open();
pbox->flush();
Nickolay may want to undo my ods.h changes if gcc insists
in its crusade against non-PODs and poodles.
