CVSROOT: /home/projects/pgsql/cvsroot
Module name: pgsql
Changes by: tgl(at)hub(dot)org 01/06/21 20:04:59
Modified files:
contrib/userlock: README.user_locks user_locks.c
src/backend/storage/lmgr: lmgr.c lock.c
src/include/storage: lmgr.h lock.h
Log message:
Add support to lock manager for conditionally locking a lock (ie,
return without waiting if we can't get the lock immediately).
Not used yet, but will be needed for concurrent VACUUM.