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keepalive: Cleanup, more detailed comments, and time threshold change

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This commit is contained in:
Carlos Rafael Giani 2023-02-18 20:16:30 +01:00
parent 02386ae9ca
commit 7bcb862729
1 changed files with 16 additions and 6 deletions
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22
app/src/main/java/info/nightscout/androidaps/receivers/KeepAliveWorker.kt
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@ -171,12 +171,22 @@ class KeepAliveWorker(
val requestedProfile = ProfileSealed.PS(ps)
val runningProfile = profileFunction.getProfile()
val lastConnection = pump.lastDataTime()
val isStatusOutdated = lastConnection + STATUS_UPDATE_FREQUENCY < dateUtil.now()
val now = dateUtil.now()
val isStatusOutdated = lastConnection + STATUS_UPDATE_FREQUENCY < now
val isBasalOutdated = abs(requestedProfile.getBasal() - pump.baseBasalRate) > pump.pumpDescription.basalStep
aapsLogger.debug(LTag.CORE, "Last connection: " + dateUtil.dateAndTimeString(lastConnection))
// sometimes keep alive broadcast stops
// as as workaround test if readStatus was requested before an alarm is generated
if (lastReadStatus != 0L && lastReadStatus > dateUtil.now() - T.mins(5).msecs()) {
// Sometimes it can happen that keepalive is not triggered every 5 minutes as it should.
// In some cases, it may not even have been started at all.
// If these cases aren't handled, false "pump unreachable" alarms can be produced.
// Avoid this by checking that (a) readStatus was requested at least once (lastReadStatus
// is != 0 in that case) and (b) the last read status request was not too long ago.
//
// Also, use 5:30 as the threshold for (b) above instead of 5 minutes sharp. The keepalive
// checks come in 5 minute intervals, but due to temporal jitter, the interval between the
// last read status attempt and the current time can be slightly over 5 minutes (for example,
// 300041 milliseconds instead of exactly 300000). Add 30 extra seconds to allow for
// plenty of tolerance.
if (lastReadStatus != 0L && (now - lastReadStatus).coerceIn(minimumValue = 0, maximumValue = null) <= T.secs(5 * 60 + 30).msecs()) {
localAlertUtils.checkPumpUnreachableAlarm(lastConnection, isStatusOutdated, loop.isDisconnected)
}
if (loop.isDisconnected) {
@ -184,10 +194,10 @@ class KeepAliveWorker(
} else if (runningProfile == null || ((!pump.isThisProfileSet(requestedProfile) || !requestedProfile.isEqual(runningProfile)) && !commandQueue.isRunning(Command.CommandType.BASAL_PROFILE))) {
rxBus.send(EventProfileSwitchChanged())
} else if (isStatusOutdated && !pump.isBusy()) {
lastReadStatus = dateUtil.now()
lastReadStatus = now
commandQueue.readStatus(rh.gs(info.nightscout.core.ui.R.string.keepalive_status_outdated), null)
} else if (isBasalOutdated && !pump.isBusy()) {
lastReadStatus = dateUtil.now()
lastReadStatus = now
commandQueue.readStatus(rh.gs(info.nightscout.core.ui.R.string.keepalive_basal_outdated), null)
}
}