[Darwin] Duplicate / begin raising MTRDeviceController

src/darwin/Framework/CHIP/MTRDeviceController.h

@@ -57,8 +57,8 @@ MTR_AVAILABLE(ios(16.1), macos(13.0), watchos(9.1), tvos(16.1))
  * Once this returns non-nil, it's the caller's responsibility to call shutdown
  * on the controller to avoid leaking it.
  */
-- (nullable instancetype)initWithParameters:(MTRDeviceControllerAbstractParameters *)parameters
-                                      error:(NSError * __autoreleasing *)error MTR_AVAILABLE(ios(17.6), macos(14.6), watchos(10.6), tvos(17.6));
+- (nullable MTRDeviceController *)initWithParameters:(MTRDeviceControllerAbstractParameters *)parameters
+                                               error:(NSError * __autoreleasing *)error MTR_AVAILABLE(ios(17.6), macos(14.6), watchos(10.6), tvos(17.6));
 
 /**
  * If true, the controller has not been shut down yet.

src/darwin/Framework/CHIP/MTRDeviceController.mm

@@ -108,10 +108,6 @@
 using namespace chip::Tracing::DarwinFramework;
 
 @implementation MTRDeviceController {
-    // Atomic because they can be touched from multiple threads.
-    std::atomic<chip::FabricIndex> _storedFabricIndex;
-    std::atomic<std::optional<uint64_t>> _storedCompressedFabricID;
-
     // queue used to serialize all work performed by the MTRDeviceController
     dispatch_queue_t _chipWorkQueue;
 
@@ -120,8 +116,6 @@ @implementation MTRDeviceController {
     chip::Credentials::DefaultDACVerifier * _defaultDACVerifier;
     MTRDeviceControllerDelegateBridge * _deviceControllerDelegateBridge;
     MTROperationalCredentialsDelegate * _operationalCredentialsDelegate;
-    MTRP256KeypairBridge _signingKeypairBridge;
-    MTRP256KeypairBridge _operationalKeypairBridge;
     MTRDeviceAttestationDelegateBridge * _deviceAttestationDelegateBridge;
     MTRDeviceControllerFactory * _factory;
     NSMapTable * _nodeIDToDeviceMap;
@@ -133,9 +127,22 @@ @implementation MTRDeviceController {
     NSMutableArray<MTRServerEndpoint *> * _serverEndpoints;
 
     MTRDeviceStorageBehaviorConfiguration * _storageBehaviorConfiguration;
+    std::atomic<chip::FabricIndex> _storedFabricIndex;
+    std::atomic<std::optional<uint64_t>> _storedCompressedFabricID;
+    MTRP256KeypairBridge _signingKeypairBridge;
+    MTRP256KeypairBridge _operationalKeypairBridge;
+}
+
+- (instancetype)initForSubclasses
+{
+    if (self = [super init]) {
+        // nothing, as superclass of MTRDeviceController is NSObject
+    }
+
+    return self;
 }
 
-- (nullable instancetype)initWithParameters:(MTRDeviceControllerAbstractParameters *)parameters error:(NSError * __autoreleasing *)error
+- (nullable MTRDeviceController *)initWithParameters:(MTRDeviceControllerAbstractParameters *)parameters error:(NSError * __autoreleasing *)error
 {
     if (![parameters isKindOfClass:MTRDeviceControllerParameters.class]) {
         MTR_LOG_ERROR("Unsupported type of MTRDeviceControllerAbstractParameters: %@", parameters);
@@ -1575,15 +1582,6 @@ + (void)forceLocalhostAdvertisingOnly
 
 @end
 
-/**
- * Shim to allow us to treat an MTRDevicePairingDelegate as an
- * MTRDeviceControllerDelegate.
- */
-@interface MTRDevicePairingDelegateShim : NSObject <MTRDeviceControllerDelegate>
-@property (nonatomic, readonly) id<MTRDevicePairingDelegate> delegate;
-- (instancetype)initWithDelegate:(id<MTRDevicePairingDelegate>)delegate;
-@end
-
 @implementation MTRDevicePairingDelegateShim
 - (instancetype)initWithDelegate:(id<MTRDevicePairingDelegate>)delegate
 {

src/darwin/Framework/CHIP/MTRDeviceControllerFactory.h

@@ -23,6 +23,7 @@
 #import <Foundation/Foundation.h>
 #import <Matter/MTRCertificates.h>
 #import <Matter/MTRDefines.h>
+#import <Matter/MTRDeviceController.h>
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -31,7 +32,6 @@ NS_ASSUME_NONNULL_BEGIN
 @protocol MTROTAProviderDelegate;
 @protocol MTRKeypair;
 
-@class MTRDeviceController;
 @class MTRDeviceControllerStartupParams;
 @class MTRFabricInfo;
 

src/darwin/Framework/CHIP/MTRDeviceControllerFactory.mm

@@ -1133,9 +1133,9 @@ - (void)operationalInstanceAdded:(chip::PeerId &)operationalID
     }
 }
 
-- (MTRDeviceController * _Nullable)initializeController:(MTRDeviceController *)controller
-                                         withParameters:(MTRDeviceControllerParameters *)parameters
-                                                  error:(NSError * __autoreleasing *)error
+- (nullable MTRDeviceController *)initializeController:(MTRDeviceController *)controller
+                                        withParameters:(MTRDeviceControllerParameters *)parameters
+                                                 error:(NSError * __autoreleasing *)error
 {
     [self _assertCurrentQueueIsNotMatterQueue];
 

src/darwin/Framework/CHIP/MTRDeviceController_Concrete.h

@@ -19,6 +19,7 @@
 
 #import <Matter/MTRCommissionableBrowserDelegate.h>
 #import <Matter/MTRDefines.h>
+#import <Matter/MTRDeviceController.h>
 #import <Matter/MTROperationalCertificateIssuer.h>
 
 @class MTRBaseDevice;
@@ -37,15 +38,7 @@ typedef void (^MTRDeviceConnectionCallback)(MTRBaseDevice * _Nullable device, NS
 @protocol MTRDevicePairingDelegate;
 @protocol MTRDeviceControllerDelegate;
 
-MTR_AVAILABLE(ios(16.1), macos(13.0), watchos(9.1), tvos(16.1))
-@interface MTRDeviceController : NSObject
-
-/**
- * Controllers are created via the MTRDeviceControllerFactory object or
- * initialized via initWithParameters:error:.
- */
-- (instancetype)init NS_UNAVAILABLE;
-+ (instancetype)new NS_UNAVAILABLE;
+@interface MTRDeviceController_Concrete : MTRDeviceController
 
 /**
  * Initialize a device controller with the provided parameters.  This will:
@@ -57,8 +50,8 @@ MTR_AVAILABLE(ios(16.1), macos(13.0), watchos(9.1), tvos(16.1))
  * Once this returns non-nil, it's the caller's responsibility to call shutdown
  * on the controller to avoid leaking it.
  */
-- (nullable instancetype)initWithParameters:(MTRDeviceControllerAbstractParameters *)parameters
-                                      error:(NSError * __autoreleasing *)error MTR_AVAILABLE(ios(17.6), macos(14.6), watchos(10.6), tvos(17.6));
+- (nullable MTRDeviceController *)initWithParameters:(MTRDeviceControllerAbstractParameters *)parameters
+                                               error:(NSError * __autoreleasing *)error MTR_AVAILABLE(ios(17.6), macos(14.6), watchos(10.6), tvos(17.6));
 
 /**
  * If true, the controller has not been shut down yet.
@@ -262,7 +255,7 @@ MTR_AVAILABLE(ios(16.1), macos(13.0), watchos(9.1), tvos(16.1))
 
 @end
 
-@interface MTRDeviceController (Deprecated)
+@interface MTRDeviceController_Concrete (Deprecated)
 
 @property (readonly, nonatomic, nullable) NSNumber * controllerNodeId MTR_DEPRECATED(
     "Please use controllerNodeID", ios(16.1, 16.4), macos(13.0, 13.3), watchos(9.1, 9.4), tvos(16.1, 16.4));