resolves two retain cycles

this also resolves a issue where wrong infectionStatus was provided to the app after resetting the SDK
DP-3T · May 11, 2021 · d32fd86 · d32fd86
1 parent fc0ef0b
commit d32fd86
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diff --git a/Sources/DP3TSDK/Background/DP3TBackgroundTaskManager.swift b/Sources/DP3TSDK/Background/DP3TBackgroundTaskManager.swift
@@ -30,7 +30,7 @@ class DP3TBackgroundTaskManager {
 
     private let serviceClient: ExposeeServiceClientProtocol
 
-    private let tracer: Tracer
+    private weak var tracer: Tracer!
 
     init(handler: DP3TBackgroundHandler?,
          keyProvider: DiagnosisKeysProvider,

diff --git a/Sources/DP3TSDK/Tracing/ExposureNotificationTracer.swift b/Sources/DP3TSDK/Tracing/ExposureNotificationTracer.swift
@@ -19,7 +19,7 @@ class ExposureNotificationTracer: Tracer {
     private var stateObservation: NSKeyValueObservation?
     private var enabledObservation: NSKeyValueObservation?
 
-    var delegate: TracerDelegate?
+    weak var delegate: TracerDelegate?
 
     private let queue = DispatchQueue(label: "org.dpppt.tracer")