commit 6a9f0db983ed87cfd66396b9fed86535fd458965
author chiachangwang <chiachangwang@google.com> Wed Dec 14 08:40:42 2022 +0000
committer chiachangwang <chiachangwang@google.com> Tue Jan 17 07:24:48 2023 +0000
tree 7147c5f559af4b99e04acfe32fb65e47923d0bfc
parent cd9399be1e910503b5c2d88e1203211115fa06c7

[DK1]Add TCP polling mechanism

Add TCP polling mechanism in KeepaliveTracker to understand if
there are any TCP sockets in the target network. This is a
preparation commit for dynamically control keepalive based on
the existence of TCP sockets. This is non-functional now since
there is no caller to retrieve the information now.

Bug: 259000745
Test: atest FrameworksNetTests
Test: Manually test by creating TCP sockets on the target network
      in device and check if deisgn works.
Change-Id: I355ac340cad2fac618bb9d65fb1b1539ea644959