CyberDem0n / bg_mon / 133

88%

master: 89%

Pull #20

travis-ci

Fix buffer overflow in get_pg_locks

Every item returned by GetLockStatusData contains information about lock
held mode (ExclusiveLock, AccessShareLock, RowExclusiveLock and so on).
pg_locks view reports all modes for the same object and pg_lock_status()
was copied without full understanding how it supposed to work, what
cause buffer overflow. In fact we are not interested on all modes, but
only about lock status. Taking into account that the given record can
represent granted lock on a given object and at the same time it could
be waiting for a more strict lock, we need to extend array size by 2.

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