Fixing shadow variables, and also fixing registration (#35473)

src/darwin/Framework/CHIP/MTRDeviceController.mm

@@ -142,6 +142,8 @@ @implementation MTRDeviceController {
     os_unfair_lock _assertionLock;
 }
 
+@synthesize uniqueIdentifier = _uniqueIdentifier;
+
 - (os_unfair_lock_t)deviceMapLock
 {
     return &_underlyingDeviceMapLock;
@@ -340,7 +342,7 @@ - (instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
 
 - (NSString *)description
 {
-    return [NSString stringWithFormat:@"<%@: %p uuid %@>", NSStringFromClass(self.class), self, _uniqueIdentifier];
+    return [NSString stringWithFormat:@"<%@: %p uuid %@>", NSStringFromClass(self.class), self, self.uniqueIdentifier];
 }
 
 - (BOOL)isRunning

src/darwin/Framework/CHIP/MTRDeviceController_Concrete.h

@@ -58,11 +58,6 @@ typedef void (^MTRDeviceConnectionCallback)(MTRBaseDevice * _Nullable device, NS
  */
 @property (readonly, nonatomic, getter=isRunning) BOOL running;
 
-/**
- * The ID assigned to this controller at creation time.
- */
-@property (readonly, nonatomic) NSUUID * uniqueIdentifier MTR_AVAILABLE(ios(17.6), macos(14.6), watchos(10.6), tvos(17.6));
-
 /**
  * Return the Node ID assigned to the controller.  Will return nil if the
  * controller is not running (and hence does not know its node id).

src/darwin/Framework/CHIP/MTRDeviceController_Concrete.mm

@@ -101,7 +101,6 @@ @interface MTRDeviceController_Concrete ()
 @property (nonatomic, readonly) MTRDeviceControllerDelegateBridge * deviceControllerDelegateBridge;
 @property (nonatomic, readonly) MTROperationalCredentialsDelegate * operationalCredentialsDelegate;
 @property (nonatomic, readonly) MTRDeviceAttestationDelegateBridge * deviceAttestationDelegateBridge;
-@property (nonatomic, readwrite) NSUUID * uniqueIdentifier;
 @property (nonatomic, readonly) dispatch_queue_t chipWorkQueue;
 @property (nonatomic, readonly, nullable) MTRDeviceControllerFactory * factory;
 @property (nonatomic, readonly, nullable) id<MTROTAProviderDelegate> otaProviderDelegate;
@@ -130,9 +129,6 @@ @implementation MTRDeviceController_Concrete {
     os_unfair_lock _assertionLock;
 }
 
-// TODO: Figure out whether uniqueIdentifier storage should live in the superclass.  It
-// probably should!
-@synthesize uniqueIdentifier = _uniqueIdentifier;
 // TODO: Figure out whether the work queue storage lives here or in the superclass
 // Right now we seem to have both?
 @synthesize chipWorkQueue = _chipWorkQueue;
@@ -208,7 +204,7 @@ - (instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
     if (self = [super initForSubclasses:startSuspended]) {
         // Make sure our storage is all set up to work as early as possible,
         // before we start doing anything else with the controller.
-        _uniqueIdentifier = uniqueIdentifier;
+        self.uniqueIdentifier = uniqueIdentifier;
 
         // Setup assertion variables
         _keepRunningAssertionCounter = 0;
@@ -340,7 +336,7 @@ - (instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
 
 - (NSString *)description
 {
-    return [NSString stringWithFormat:@"<%@: %p uuid %@>", NSStringFromClass(self.class), self, _uniqueIdentifier];
+    return [NSString stringWithFormat:@"<%@: %p uuid %@>", NSStringFromClass(self.class), self, self.uniqueIdentifier];
 }
 
 - (BOOL)isRunning
@@ -744,7 +740,7 @@ - (BOOL)startup:(MTRDeviceControllerStartupParamsInternal *)startupParams
     if (_controllerDataStore) {
         // If the storage delegate supports the bulk read API, then a dictionary of nodeID => cluster data dictionary would be passed to the handler. Otherwise this would be a no-op, and stored attributes for MTRDevice objects will be loaded lazily in -deviceForNodeID:.
         [_controllerDataStore fetchAttributeDataForAllDevices:^(NSDictionary<NSNumber *, NSDictionary<MTRClusterPath *, MTRDeviceClusterData *> *> * _Nonnull clusterDataByNode) {
-            MTR_LOG("%@ Loaded attribute values for %lu nodes from storage for controller uuid %@", self, static_cast<unsigned long>(clusterDataByNode.count), self->_uniqueIdentifier);
+            MTR_LOG("%@ Loaded attribute values for %lu nodes from storage for controller uuid %@", self, static_cast<unsigned long>(clusterDataByNode.count), self.uniqueIdentifier);
 
             std::lock_guard lock(*self.deviceMapLock);
             NSMutableArray * deviceList = [NSMutableArray array];
@@ -1290,7 +1286,7 @@ - (BOOL)addServerEndpoint:(MTRServerEndpoint *)endpoint
         [self->_serverEndpoints addObject:endpoint];
         [endpoint registerMatterEndpoint];
         MTR_LOG("%@ Added server endpoint %u to controller %@", self, static_cast<chip::EndpointId>(endpoint.endpointID.unsignedLongLongValue),
-            self->_uniqueIdentifier);
+            self.uniqueIdentifier);
     }
         errorHandler:^(NSError * error) {
             MTR_LOG_ERROR("%@ Unexpected failure dispatching to Matter queue on running controller in addServerEndpoint, adding endpoint %u", self,
@@ -1317,8 +1313,7 @@ - (void)removeServerEndpointInternal:(MTRServerEndpoint *)endpoint queue:(dispat
     // tearing it down.
     [self asyncDispatchToMatterQueue:^() {
         [self removeServerEndpointOnMatterQueue:endpoint];
-        MTR_LOG("%@ Removed server endpoint %u from controller %@", self, static_cast<chip::EndpointId>(endpoint.endpointID.unsignedLongLongValue),
-            self->_uniqueIdentifier);
+        MTR_LOG("%@ Removed server endpoint %u from controller %@", self, static_cast<chip::EndpointId>(endpoint.endpointID.unsignedLongLongValue), self.uniqueIdentifier);
         if (queue != nil && completion != nil) {
             dispatch_async(queue, completion);
         }

src/darwin/Framework/CHIP/MTRDeviceController_Internal.h

@@ -69,6 +69,8 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) NSMapTable<NSNumber *, MTRDevice *> * nodeIDToDeviceMap;
 @property (readonly, assign) os_unfair_lock_t deviceMapLock;
 
+@property (readwrite, nonatomic) NSUUID * uniqueIdentifier;
+
 // queue used to serialize all work performed by the MTRDeviceController
 // (moved here so subclasses can initialize differently)
 @property (readwrite, retain) dispatch_queue_t chipWorkQueue;

src/darwin/Framework/CHIP/MTRDeviceController_XPC.mm

@@ -236,6 +236,7 @@ - (nullable instancetype)initWithParameters:(MTRDeviceControllerAbstractParamete
             return nil;
         }
 
+        self.uniqueIdentifier = UUID;
         self.xpcParameters = xpcParameters;
         self.chipWorkQueue = dispatch_queue_create("MTRDeviceController_XPC_queue", DISPATCH_QUEUE_SERIAL_WITH_AUTORELEASE_POOL);
 
@@ -285,6 +286,13 @@ - (MTRDevice *)_setupDeviceForNodeID:(NSNumber *)nodeID prefetchedClusterData:(N
     MTRDevice * deviceToReturn = [[MTRDevice_XPC alloc] initWithNodeID:nodeID controller:self];
     [self.nodeIDToDeviceMap setObject:deviceToReturn forKey:nodeID];
     MTR_LOG("%s: returning XPC device for node id %@", __PRETTY_FUNCTION__, nodeID);
+
+    mtr_weakify(self);
+    [[self.xpcConnection synchronousRemoteObjectProxyWithErrorHandler:^(NSError * _Nonnull error) {
+        mtr_strongify(self);
+        MTR_LOG_ERROR("%@ Registration error for device nodeID: %@ : %@", self, nodeID, error);
+    }] deviceController:self.uniqueIdentifier registerNodeID:nodeID];
+
     return deviceToReturn;
 }