tree c14fe0cfab67d3a0c44e2c54b8d182915380d23e
parent 4fc3ee5be223122792ebc0ee8a05c93d93e26a52
author Hugo Benichi <hugobenichi@google.com> 1465281316 +0900
committer Hugo Benichi <hugobenichi@google.com> 1467278793 +0900

Log RA listening statistics

This patch adds a new ApfStats event class that counts RA packet
reception statistics on the RA listener thread of ApfFilter and reports
the maximum program size advertised by hardware.

Statistics are gathered for the lifetime of a network with APF
capabilities and uploaded at network teardown when the listener thread
exits.

Example event:
ConnectivityMetricsEvent(15:44:23.741, 0, 0): ApfStats(284945ms 2048B RA: 2 received, 0 matching, 0 ignored, 0 expired, 0 parse errors, 2 program updates)

Bug: 28204408
Change-Id: Id2eaafdca97f61152a4b66d06061c971bc0aba4c