The READERWRITERLOCKINFORMATION system table describes reader-writer locks.
READERWRITERLOCKINFORMATION
READERWRITERLOCKADDRESS |
CHAR(20) |
Address in memory |
SPINLOCKPOOLNAME |
CHAR(40) |
Name of the spin lock pool used |
READERWRITERLOCKINDEX |
FIXED(20) |
Index in a group of reader-writer locks that use the spin lock pool |
LASTENTEREDTASKID |
FIXED(10) |
ID of the task that last gained access to the reader-writer lock |