tree eccafb623637fea1caf837c4dae2a6c251a82c97
parent c892f4a0a863ff982b108d1a73f65dacb2cfbdac
author Kun Yi <kunyi731@gmail.com> 1574199905 -0800
committer Kun Yi <kunyi731@gmail.com> 1574200211 -0800

Store the last action time in session info

Add a timestamp member in SessionStat to capture when the session
sees activity last, and update it with every action. The timestamp
will be used to check when the session should expire.

Signed-off-by: Kun Yi <kunyi731@gmail.com>
Change-Id: Ic781d54173099bff76b3c37dd296521680fe7986