refactor power_event_watcher for configurable subscriber behavior #1764
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| // knapsackSubscriber implements the powerEventSubscriber interface and | ||
| // updates the knapsack.InModernStandby state based on the power events observed | ||
| knapsackSubscriber struct { |
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This might just be me, but I was confused because knapsackSubscriber sounds like something subscribing to the knapsack and not (effectively) the knapsack subscribing to something else. What about something like knapsackUpdater (or something along those lines but more specific, like knapsackSleepStateUpdater)?
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oh yeah, that makes more sense thank you. will do knapsackSleepStateUpdater
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RebeccaMahany
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Jun 27, 2024
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To support the windows watchdog efforts, we will be re-using the
power_event_watchercode from the watchdog service. Currently the power_event_watcher component takes a knapsack reference and directly manipulates theInModernStandbyvalue as a result of the observed events. These are also persisted to bbolt, making this a little tricky for sharing with a separate service as is.We can't simply read the values from bbolt within watchdog because if launcher proper stops functioning (and requires watchdog intervention) we shouldn't trust the latest stored value.
We also likely won't want two versions of the same logs always being added from both watchdog and launcher, and I didn't want to just duplicate all of this code. This was the cleanest approach I could come up with, and should allow watchdog to simply define a new
powerEventSubscriber(and avoid knapsack/stores setup). happy to hear any alternative suggestions!