The SYSINFO.SHARELOCKINFORMATION system table describes reader-writer locks (share locks).
SHARELOCKADDRESS |
CHAR(20) |
Address in memory |
SPINLOCKPOOLNAME |
CHAR(40) |
Name of the spin lock pool used |
SHARELOCKINDEX |
FIXED(20) |
Index in a group of reader-writer locks (share locks) that use the spin lock pool |
LASTENTEREDTASKID |
FIXED(10) |
ID of the task that last gained access to the reader-writer lock (share lock) |
SHARELOCKSTATISTICS, SHARELOCKWAITINGTASKS
Concepts of the Database System, Working Memory Areas
Glossary, Critical Section