commit 0eb7257421b137de51e8f68dfda9ad9df2498965
author Kiet Tran <kiettran@google.com> Mon Jul 26 22:00:51 2021 +0000
committer CQ Bot <commit-bot@chromium.org> Mon Jul 26 22:00:51 2021 +0000
tree ce653c6fd632cf5d6ae4a4f522f4e9e59f4f84aa
parent 95106fd2c8c1e5de6495739b60b437c561880b52

[wlan][policy] Add telemetry for connection uptime

Keep track of:
- connected_duration
- downtime_duration
- downtime_no_saved_neighbor_duration

for the last one day and seven days, separately, and log them into
Inspect.

These counters will be used to compute the uptime ratio.

Bug: 78170
Bug: 78318
Test:

Added unit tests. Performed the following manual test.

1. Connect to network, verify that connected_duration counter goes up
   periodically.
2. Disconnect via StopClientConnection, verify that no counter goes up.
3. Reconnect.
4. Disconnect via wlan-dev API, verify that downtime_duration counter
   goes up, while downtime_no_saved_neighbor_duration doesn't.
5. Policy would reconnect automatically. Now, disconnect by turning off
   AP. Verify that both downtime_duration and
   downtime_no_saved_neighbor_duration counters go up periodically.

Change-Id: I549770c97d19994c5b8624e9421a1001a7bd11d3
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/543627
Commit-Queue: Kiet Tran <kiettran@google.com>
Reviewed-by: Marc Khouri <mnck@google.com>
Reviewed-by: Charles Celerier <chcl@google.com>