On 64-bit platforms, this value can be checked without the need to take a lock on the overall structure.
(Since expiry times are maintained as 64-bit values,
a check on the value cannot be done on 32-bit platforms without using either a compare-and-swap (CAS) instruction or using a lock,
On 64-bit platforms, this value can be checked without the need to take a lock on the overall structure.
(Since expiry times are maintained as 64-bit values,
a check on the value cannot be done on 32-bit platforms without using either a compare-and-swap (CAS) instruction or using a lock,