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Combo: only reject bolus requests if the requested bolus was delivered

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Since history is being read now (also just before starting to bolus),
it's safe to only reject boluses if the previous request actually
lead to insulin delivery.

Fixes #700.
This commit is contained in:
Johannes Mockenhaupt 2018-03-18 00:07:49 +01:00
parent 17219c08d1
commit a2ac21ea67
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GPG key ID: 9E1EA6AF7BBBB0D1
1 changed files with 9 additions and 18 deletions
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27
app/src/main/java/info/nightscout/androidaps/plugins/PumpCombo/ComboPlugin.java
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@ -115,12 +115,6 @@ public class ComboPlugin implements PluginBase, PumpInterface, ConstraintsInterf
* will reset this flag. */
private volatile boolean cancelBolus;
/** Used to reject boluses with the same amount requested within two minutes.
* Used solely by {@link #deliverBolus(DetailedBolusInfo)}. This is independent of the
* pump history and is meant as a safety feature to block multiple requests due to an
* application bug. Whether the requested bolus was delivered once is not taken into account. */
private Bolus lastRequestedBolus;
/**
* This is set (in {@link #checkHistory()} whenever a connection to the pump is made and
* indicates if new history records on the pump have been found. This effectively blocks
@ -538,18 +532,6 @@ public class ComboPlugin implements PluginBase, PumpInterface, ConstraintsInterf
pump.activity = MainApp.gs(R.string.combo_pump_action_bolusing, detailedBolusInfo.insulin);
MainApp.bus().post(new EventComboPumpUpdateGUI());
// Guard against boluses issued multiple times within two minutes.
// Two minutes, so that the resulting timestamp and bolus are different with the Combo
// history records which only store with minute-precision
if (lastRequestedBolus != null
&& Math.abs(lastRequestedBolus.amount - detailedBolusInfo.insulin) < 0.01
&& lastRequestedBolus.timestamp + 120 * 1000 > System.currentTimeMillis()) {
log.error("Bolus request rejected, same bolus requested recently: " + lastRequestedBolus);
return new PumpEnactResult().success(false).enacted(false)
.comment(MainApp.gs(R.string.bolus_frequency_exceeded));
}
lastRequestedBolus = new Bolus(System.currentTimeMillis(), detailedBolusInfo.insulin, true);
// check pump is ready and all pump bolus records are known
CommandResult stateResult = runCommand(null, 2, () -> ruffyScripter.readQuickInfo(1));
if (!stateResult.success) {
@ -570,6 +552,15 @@ public class ComboPlugin implements PluginBase, PumpInterface, ConstraintsInterf
? stateResult.history.bolusHistory.get(0)
: new Bolus(0, 0, false);
// reject a bolus if one with the exact same size was successfully delivered
// within the last 1-2 minutes
if (Math.abs(previousBolus.amount - detailedBolusInfo.insulin) < 0.01
&& previousBolus.timestamp + 60 * 1000 > System.currentTimeMillis()) {
log.debug("Bolu request rejected, same bolus was successfully delivered very recently");
return new PumpEnactResult().success(false).enacted(false)
.comment(MainApp.gs(R.string.bolus_frequency_exceeded));
}
// if the last bolus was given in the current minute, wait till the pump clock moves
// to the next minute to ensure timestamps are unique and can be imported
CommandResult timeCheckResult = stateResult;