Make RCTPackagerConnection a singleton

Reviewed By: fromcelticpark

Differential Revision: D6361741

fbshipit-source-id: 96e92dff5dd3d7aa1f7555442b0eba90e7dbf47c

Libraries/WebSocket/RCTReconnectingWebSocket.h

@@ -11,28 +11,29 @@
 
 #if RCT_DEV // Only supported in dev mode
 
-@class RCTSRWebSocket;
+@class RCTReconnectingWebSocket;
-
-@protocol RCTWebSocketProtocolDelegate
-
-- (void)webSocketDidOpen:(RCTSRWebSocket *)webSocket;
-
-- (void)webSocket:(RCTSRWebSocket *)webSocket didReceiveMessage:(id)message;
-
-- (void)webSocket:(RCTSRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean;
 
+@protocol RCTReconnectingWebSocketDelegate
+- (void)reconnectingWebSocketDidOpen:(RCTReconnectingWebSocket *)webSocket;
+- (void)reconnectingWebSocket:(RCTReconnectingWebSocket *)webSocket didReceiveMessage:(id)message;
+/** Sent when the socket has closed due to error or clean shutdown. An automatic reconnect will start shortly. */
+- (void)reconnectingWebSocketDidClose:(RCTReconnectingWebSocket *)webSocket;
 @end
 
 @interface RCTReconnectingWebSocket : NSObject
 
-- (instancetype)initWithURL:(NSURL *)url;
+/** Delegate will be messaged on the given queue (required). */
-@property (nonatomic, weak) id<RCTWebSocketProtocolDelegate> delegate;
+- (instancetype)initWithURL:(NSURL *)url queue:(dispatch_queue_t)queue;
-/** @brief Must be set before -start to have effect */
+
-@property (nonatomic, strong) dispatch_queue_t delegateDispatchQueue;
+@property (nonatomic, weak) id<RCTReconnectingWebSocketDelegate> delegate;
 - (void)send:(id)data;
 - (void)start;
 - (void)stop;
 
+- (instancetype)initWithURL:(NSURL *)url __deprecated_msg("Use initWithURL:queue: instead");
+/** @brief Must be set before -start to have effect */
+@property (nonatomic, strong) dispatch_queue_t delegateDispatchQueue __deprecated_msg("Use initWithURL:queue: instead");
+
 @end
 
 #endif

Libraries/WebSocket/RCTReconnectingWebSocket.m

@@ -58,8 +58,6 @@ static void my_os_log_error_impl(void *dso, os_log_t log, os_log_type_t type, co
   RCTSRWebSocket *_socket;
 }
 
-@synthesize delegate = _delegate;
-
 + (void)load
 {
   static dispatch_once_t onceToken;
@@ -75,14 +73,20 @@ static void my_os_log_error_impl(void *dso, os_log_t log, os_log_type_t type, co
   });
 }
 
-- (instancetype)initWithURL:(NSURL *)url
+- (instancetype)initWithURL:(NSURL *)url queue:(dispatch_queue_t)queue
 {
   if (self = [super init]) {
     _url = url;
+    _delegateDispatchQueue = queue;
   }
   return self;
 }
 
+- (instancetype)initWithURL:(NSURL *)url
+{
+  return [self initWithURL:url queue:dispatch_get_main_queue()];
+}
+
 - (void)send:(id)data
 {
   [_socket send:data];
@@ -93,9 +97,7 @@ static void my_os_log_error_impl(void *dso, os_log_t log, os_log_type_t type, co
   [self stop];
   _socket = [[RCTSRWebSocket alloc] initWithURL:_url];
   _socket.delegate = self;
-  if (_delegateDispatchQueue) {
   [_socket setDelegateDispatchQueue:_delegateDispatchQueue];
-  }
   [_socket open];
 }
 
@@ -108,9 +110,7 @@ static void my_os_log_error_impl(void *dso, os_log_t log, os_log_type_t type, co
 
 - (void)webSocket:(RCTSRWebSocket *)webSocket didReceiveMessage:(id)message
 {
-  if (_delegate) {
+  [_delegate reconnectingWebSocket:self didReceiveMessage:message];
-    [_delegate webSocket:webSocket didReceiveMessage:message];
-  }
 }
 
 - (void)reconnect
@@ -126,17 +126,18 @@ static void my_os_log_error_impl(void *dso, os_log_t log, os_log_type_t type, co
 
 - (void)webSocketDidOpen:(RCTSRWebSocket *)webSocket
 {
-  [self.delegate webSocketDidOpen:webSocket];
+  [_delegate reconnectingWebSocketDidOpen:self];
 }
 
 - (void)webSocket:(RCTSRWebSocket *)webSocket didFailWithError:(NSError *)error
 {
+  [_delegate reconnectingWebSocketDidClose:self];
   [self reconnect];
 }
 
 - (void)webSocket:(RCTSRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean
 {
-  [self.delegate webSocket:webSocket didCloseWithCode:code reason:reason wasClean:wasClean];
+  [_delegate reconnectingWebSocketDidClose:self];
   [self reconnect];
 }
 

React/Base/RCTBridge+Private.h

@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  */
 
+#import <JavaScriptCore/JavaScriptCore.h>
 #import <JavaScriptCore/JSBase.h>
 
 #import <React/RCTBridge.h>
@@ -158,6 +159,15 @@ RCT_EXTERN void RCTVerifyAllModulesExported(NSArray *extraModules);
 
 @end
 
+@interface RCTBridge (JavaScriptCore)
+
+/**
+ * The raw JSGlobalContextRef used by the bridge.
+ */
+@property (nonatomic, readonly, assign) JSGlobalContextRef jsContextRef;
+
+@end
+
 @interface RCTBatchedBridge : RCTBridge <RCTInvalidating>
 
 @property (nonatomic, weak, readonly) RCTBridge *parentBridge;

React/Base/RCTBridge.m

@@ -17,7 +17,6 @@
 #if RCT_ENABLE_INSPECTOR
 #import "RCTInspectorDevServerHelper.h"
 #endif
-#import "RCTJSEnvironment.h"
 #import "RCTLog.h"
 #import "RCTModuleData.h"
 #import "RCTPerformanceLogger.h"
@@ -403,15 +402,6 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
   [self.batchedBridge registerSegmentWithId:segmentId path:path];
 }
 
-@end
-
-@implementation RCTBridge (JavaScriptCore)
-
-- (JSContext *)jsContext
-{
-  return [self.batchedBridge jsContext];
-}
-
 - (JSGlobalContextRef)jsContextRef
 {
   return [self.batchedBridge jsContextRef];

React/Base/RCTBundleURLProvider.h

@@ -59,11 +59,6 @@ extern const NSUInteger kRCTBundleURLProviderDefaultPort;
                     resourceExtension:(NSString *)extension
                         offlineBundle:(NSBundle *)offlineBundle;
 
-/**
- * Returns the URL of the packager server.
- */
-- (NSURL *)packagerServerURL;
-
 /**
  * The IP address or hostname of the packager.
  */

React/Base/RCTBundleURLProvider.m

@@ -111,12 +111,6 @@ static NSURL *serverRootWithHost(NSString *host)
   return nil;
 }
 
-- (NSURL *)packagerServerURL
-{
-  NSString *const host = [self packagerServerHost];
-  return host ? serverRootWithHost(host) : nil;
-}
-
 - (NSURL *)jsBundleURLForBundleRoot:(NSString *)bundleRoot fallbackResource:(NSString *)resourceName fallbackExtension:(NSString *)extension
 {
   NSString *packagerServerHost = [self packagerServerHost];

React/Base/RCTJSEnvironment.h

@@ -1,29 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import <JavaScriptCore/JavaScriptCore.h>
-
-#import <React/RCTBridge.h>
-
-@protocol RCTJSEnvironment <NSObject>
-
-/**
- * The JSContext used by the bridge.
- */
-@property (nonatomic, readonly, strong) JSContext *jsContext;
-/**
- * The raw JSGlobalContextRef used by the bridge.
- */
-@property (nonatomic, readonly, assign) JSGlobalContextRef jsContextRef;
-
-@end
-
-@interface RCTBridge (RCTJSEnvironment) <RCTJSEnvironment>
-
-@end

React/CxxBridge/RCTCxxBridge.mm

@@ -188,11 +188,6 @@ struct RCTInstanceCallback : public InstanceCallback {
   }
 }
 
-- (JSContext *)jsContext
-{
-  return contextForGlobalContextRef([self jsContextRef]);
-}
-
 - (JSGlobalContextRef)jsContextRef
 {
   return (JSGlobalContextRef)(self->_reactInstance ? self->_reactInstance->getJavaScriptContext() : nullptr);

React/DevSupport/RCTPackagerClient.h

@@ -12,14 +12,14 @@
 #if RCT_DEV // Only supported in dev mode
 
 @class RCTPackagerClientResponder;
-@class RCTSRWebSocket;
+@class RCTReconnectingWebSocket;
 
 extern const int RCT_PACKAGER_CLIENT_PROTOCOL_VERSION;
 
 @protocol RCTPackagerClientMethod <NSObject>
 
-- (void)handleRequest:(id)params withResponder:(RCTPackagerClientResponder *)responder;
+- (void)handleRequest:(NSDictionary<NSString *, id> *)params withResponder:(RCTPackagerClientResponder *)responder;
-- (void)handleNotification:(id)params;
+- (void)handleNotification:(NSDictionary<NSString *, id> *)params;
 
 @optional
 
@@ -30,7 +30,7 @@ extern const int RCT_PACKAGER_CLIENT_PROTOCOL_VERSION;
 
 @interface RCTPackagerClientResponder : NSObject
 
-- (instancetype)initWithId:(id)msgId socket:(RCTSRWebSocket *)socket;
+- (instancetype)initWithId:(id)msgId socket:(RCTReconnectingWebSocket *)socket;
 - (void)respondWithResult:(id)result;
 - (void)respondWithError:(id)error;
 

React/DevSupport/RCTPackagerClient.m

@@ -10,7 +10,7 @@
 #import "RCTPackagerClient.h"
 
 #import <React/RCTLog.h>
-#import <React/RCTSRWebSocket.h>
+#import <React/RCTReconnectingWebSocket.h>
 #import <React/RCTUtils.h>
 
 #if RCT_DEV // Only supported in dev mode
@@ -19,10 +19,10 @@ const int RCT_PACKAGER_CLIENT_PROTOCOL_VERSION = 2;
 
 @implementation RCTPackagerClientResponder {
   id _msgId;
-  __weak RCTSRWebSocket *_socket;
+  __weak RCTReconnectingWebSocket *_socket;
 }
 
-- (instancetype)initWithId:(id)msgId socket:(RCTSRWebSocket *)socket
+- (instancetype)initWithId:(id)msgId socket:(RCTReconnectingWebSocket *)socket
 {
   if (self = [super init]) {
     _msgId = msgId;

React/DevSupport/RCTPackagerConnection.h

@@ -15,27 +15,62 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@class RCTBridge;
 @protocol RCTPackagerClientMethod;
-@protocol RCTPackagerConnectionConfig;
+@class RCTPackagerClientResponder;
 
-/**
+typedef uint32_t RCTHandlerToken;
- * Encapsulates connection to React Native packager.
+typedef void (^RCTNotificationHandler)(NSDictionary<NSString *, id> *);
- * Dispatches messages from websocket to message handlers that must implement
+typedef void (^RCTRequestHandler)(NSDictionary<NSString *, id> *, RCTPackagerClientResponder *);
- * <RCTPackagerClientMethod> protocol.
+typedef void (^RCTConnectedHandler)(void);
- * Message dispatch is performed on the main queue, unless message handler
+
- * provides its own queue by overriding "methodQueue" method.
+/** Encapsulates singleton connection to React Native packager. */
- */
 @interface RCTPackagerConnection : NSObject
 
-+ (void)checkDefaultConnectionWithCallback:(void (^)(BOOL isRunning))callback
++ (instancetype)sharedPackagerConnection;
+
+/**
+ * Registers a handler for a notification broadcast from the packager. An
+ * example is "reload" - an instruction to reload from the packager.
+ * If multiple notification handlers are registered for the same method, they
+ * will all be invoked sequentially.
+ */
+- (RCTHandlerToken)addNotificationHandler:(RCTNotificationHandler)handler
+                                    queue:(dispatch_queue_t)queue
+                                forMethod:(NSString *)method;
+
+/**
+ * Registers a handler for a request from the packager. An example is
+ * pokeSamplingProfiler; it asks for profile data from the client.
+ * Only one handler can be registered for a given method; calling this
+ * displaces any previous request handler registered for that method.
+ */
+- (RCTHandlerToken)addRequestHandler:(RCTRequestHandler)handler
+                               queue:(dispatch_queue_t)queue
+                           forMethod:(NSString *)method;
+
+/**
+ * Registers a handler that runs at most once, when the connection to the
+ * packager has been established. The handler will be dispatched immediately
+ * if the connection is already established.
+ */
+- (RCTHandlerToken)addConnectedHandler:(RCTConnectedHandler)handler
                                  queue:(dispatch_queue_t)queue;
 
-+ (instancetype)connectionForBridge:(RCTBridge *)bridge;
+/** Removes a handler. Silently does nothing if the token is not valid. */
-- (instancetype)initWithConfig:(id<RCTPackagerConnectionConfig>)config;
+- (void)removeHandler:(RCTHandlerToken)token;
-- (void)addHandler:(id<RCTPackagerClientMethod>)handler forMethod:(NSString *)name;
+
+/** Disconnects and removes all handlers. */
 - (void)stop;
 
+/**
+ * Historically no distinction was made between notification and request
+ * handlers. If you use this method, it will be registered as *both* a
+ * notification handler *and* a request handler. You should migrate to the
+ * new block-based API instead.
+ */
+- (void)addHandler:(id<RCTPackagerClientMethod>)handler
+         forMethod:(NSString *)method __deprecated_msg("Use addRequestHandler or addNotificationHandler instead");
+
 @end
 
 NS_ASSUME_NONNULL_END

React/DevSupport/RCTPackagerConnection.m

@@ -1,196 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import "RCTPackagerConnection.h"
-
-#import <objc/runtime.h>
-
-#import <React/RCTAssert.h>
-#import <React/RCTBridge.h>
-#import <React/RCTBundleURLProvider.h>
-#import <React/RCTConvert.h>
-#import <React/RCTDefines.h>
-#import <React/RCTLog.h>
-#import <React/RCTReconnectingWebSocket.h>
-#import <React/RCTSRWebSocket.h>
-#import <React/RCTUtils.h>
-
-#import "RCTPackagerConnectionBridgeConfig.h"
-#import "RCTReloadPackagerMethod.h"
-#import "RCTSamplingProfilerPackagerMethod.h"
-
-#if RCT_DEV
-
-static dispatch_queue_t RCTPackagerConnectionQueue()
-{
-  static dispatch_queue_t queue;
-  static dispatch_once_t onceToken;
-  dispatch_once(&onceToken, ^{
-    queue = dispatch_queue_create("com.facebook.RCTPackagerConnectionQueue", DISPATCH_QUEUE_SERIAL);
-  });
-  return queue;
-};
-
-@interface RCTPackagerConnection () <RCTWebSocketProtocolDelegate>
-@end
-
-@implementation RCTPackagerConnection {
-  NSURL *_packagerURL;
-  RCTReconnectingWebSocket *_socket;
-  NSMutableDictionary<NSString *, id<RCTPackagerClientMethod>> *_handlers;
-}
-
-+ (void)checkDefaultConnectionWithCallback:(void (^)(BOOL isRunning))callback
-                                     queue:(dispatch_queue_t)queue
-{
-  RCTBundleURLProvider *const settings = [RCTBundleURLProvider sharedSettings];
-  NSURLComponents *components = [NSURLComponents new];
-  components.scheme = @"http";
-  components.host = settings.jsLocation ?: @"localhost";
-  components.port = @(kRCTBundleURLProviderDefaultPort);
-  components.path = @"/status";
-  [NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:components.URL]
-                                     queue:[NSOperationQueue mainQueue]
-                         completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
-                           NSString *const status = data != nil
-                             ? [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]
-                             : nil;
-                           BOOL isRunning = [status isEqualToString:@"packager-status:running"];
-
-                           dispatch_async(queue, ^{
-                             callback(isRunning);
-                           });
-                         }];
-}
-
-+ (instancetype)connectionForBridge:(RCTBridge *)bridge
-{
-  RCTPackagerConnectionBridgeConfig *config = [[RCTPackagerConnectionBridgeConfig alloc] initWithBridge:bridge];
-  return [[[self class] alloc] initWithConfig:config];
-}
-
-- (instancetype)initWithConfig:(id<RCTPackagerConnectionConfig>)config
-{
-  if (self = [super init]) {
-    _packagerURL = [config packagerURL];
-    _handlers = [[config defaultPackagerMethods] mutableCopy];
-    [self connect];
-  }
-  return self;
-}
-
-- (void)connect
-{
-  RCTAssertMainQueue();
-
-  NSURL *url = _packagerURL;
-  if (!url) {
-    return;
-  }
-
-  // The jsPackagerClient is a static map that holds different packager clients per the packagerURL
-  // In case many instances of DevMenu are created, the latest instance that use the same URL as
-  // previous instances will override given packager client's method handlers
-  static NSMutableDictionary<NSString *, RCTReconnectingWebSocket *> *socketConnections = nil;
-  if (socketConnections == nil) {
-    socketConnections = [NSMutableDictionary new];
-  }
-
-  NSString *key = [url absoluteString];
-  _socket = socketConnections[key];
-  if (!_socket) {
-    _socket = [[RCTReconnectingWebSocket alloc] initWithURL:url];
-    _socket.delegateDispatchQueue = RCTPackagerConnectionQueue();
-    [_socket start];
-    socketConnections[key] = _socket;
-  }
-
-  _socket.delegate = self;
-}
-
-- (void)stop
-{
-  [_socket stop];
-}
-
-
-- (void)addHandler:(id<RCTPackagerClientMethod>)handler forMethod:(NSString *)name
-{
-  @synchronized(self) {
-    _handlers[name] = handler;
-  }
-}
-
-- (id<RCTPackagerClientMethod>)handlerForMethod:(NSString *)name
-{
-  @synchronized(self) {
-    return _handlers[name];
-  }
-}
-
-static BOOL isSupportedVersion(NSNumber *version)
-{
-  NSArray<NSNumber *> *const kSupportedVersions = @[ @(RCT_PACKAGER_CLIENT_PROTOCOL_VERSION) ];
-  return [kSupportedVersions containsObject:version];
-}
-
-#pragma mark - RCTWebSocketProtocolDelegate
-
-- (void)webSocket:(RCTSRWebSocket *)webSocket didReceiveMessage:(id)message
-{
-  NSError *error = nil;
-  NSDictionary<NSString *, id> *msg = RCTJSONParse(message, &error);
-
-  if (error) {
-    RCTLogError(@"%@ failed to parse message with error %@\n<message>\n%@\n</message>", [self class], error, msg);
-    return;
-  }
-
-  if (!isSupportedVersion(msg[@"version"])) {
-    RCTLogError(@"%@ received message with not supported version %@", [self class], msg[@"version"]);
-    return;
-  }
-
-  id<RCTPackagerClientMethod> methodHandler = [self handlerForMethod:msg[@"method"]];
-  if (!methodHandler) {
-    if (msg[@"id"]) {
-      NSString *errorMsg = [NSString stringWithFormat:@"%@ no handler found for method %@", [self class], msg[@"method"]];
-      RCTLogError(errorMsg, msg[@"method"]);
-      [[[RCTPackagerClientResponder alloc] initWithId:msg[@"id"]
-                                               socket:webSocket] respondWithError:errorMsg];
-    }
-    return; // If it was a broadcast then we ignore it gracefully
-  }
-
-  dispatch_queue_t methodQueue = [methodHandler respondsToSelector:@selector(methodQueue)]
-    ? [methodHandler methodQueue]
-    : dispatch_get_main_queue();
-
-  dispatch_async(methodQueue, ^{
-    if (msg[@"id"]) {
-      [methodHandler handleRequest:msg[@"params"]
-                     withResponder:[[RCTPackagerClientResponder alloc] initWithId:msg[@"id"]
-                                                                           socket:webSocket]];
-    } else {
-      [methodHandler handleNotification:msg[@"params"]];
-    }
-  });
-}
-
-- (void)webSocketDidOpen:(RCTSRWebSocket *)webSocket
-{
-}
-
-- (void)webSocket:(RCTSRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean
-{
-}
-
-@end
-
-#endif

React/DevSupport/RCTPackagerConnection.mm

@@ -0,0 +1,285 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#import "RCTPackagerConnection.h"
+
+#import <algorithm>
+#import <objc/runtime.h>
+#import <vector>
+
+#import <React/RCTAssert.h>
+#import <React/RCTBridge.h>
+#import <React/RCTBundleURLProvider.h>
+#import <React/RCTConvert.h>
+#import <React/RCTDefines.h>
+#import <React/RCTLog.h>
+#import <React/RCTPackagerClient.h>
+#import <React/RCTReconnectingWebSocket.h>
+#import <React/RCTSRWebSocket.h>
+#import <React/RCTUtils.h>
+
+#if RCT_DEV
+@interface RCTPackagerConnection () <RCTReconnectingWebSocketDelegate>
+@end
+
+template <typename Handler>
+struct Registration {
+  NSString *method;
+  Handler handler;
+  dispatch_queue_t queue;
+  uint32_t token;
+};
+
+@implementation RCTPackagerConnection {
+  std::mutex _mutex; // protects all ivars
+  RCTReconnectingWebSocket *_socket;
+  BOOL _socketConnected;
+  NSString *_jsLocationForSocket;
+  id _bundleURLChangeObserver;
+  uint32_t _nextToken;
+  std::vector<Registration<RCTNotificationHandler>> _notificationRegistrations;
+  std::vector<Registration<RCTRequestHandler>> _requestRegistrations;
+  std::vector<Registration<RCTConnectedHandler>> _connectedRegistrations;
+}
+
++ (instancetype)sharedPackagerConnection
+{
+  static RCTPackagerConnection *connection;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    connection = [RCTPackagerConnection new];
+  });
+  return connection;
+}
+
+- (instancetype)init
+{
+  if (self = [super init]) {
+    _nextToken = 1; // Prevent randomly erasing a handler if you pass a bogus 0 token
+    _jsLocationForSocket = [RCTBundleURLProvider sharedSettings].jsLocation;
+    _socket = socketForLocation(_jsLocationForSocket);
+    _socket.delegate = self;
+    [_socket start];
+
+    RCTPackagerConnection *const __weak weakSelf = self;
+    _bundleURLChangeObserver =
+    [[NSNotificationCenter defaultCenter]
+     addObserverForName:RCTBundleURLProviderUpdatedNotification
+     object:nil
+     queue:[NSOperationQueue mainQueue]
+     usingBlock:^(NSNotification *_Nonnull note) {
+       [weakSelf bundleURLSettingsChanged];
+     }];
+  }
+  return self;
+}
+
+static RCTReconnectingWebSocket *socketForLocation(NSString *const jsLocation)
+{
+  NSURLComponents *const components = [NSURLComponents new];
+  components.host = jsLocation ?: @"localhost";
+  components.scheme = @"http";
+  components.port = @(kRCTBundleURLProviderDefaultPort);
+  components.path = @"/message";
+  components.queryItems = @[[NSURLQueryItem queryItemWithName:@"role" value:@"ios"]];
+  static dispatch_queue_t queue;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    queue = dispatch_queue_create("com.facebook.RCTPackagerConnectionQueue", DISPATCH_QUEUE_SERIAL);
+  });
+  return [[RCTReconnectingWebSocket alloc] initWithURL:components.URL queue:queue];
+}
+
+- (void)stop
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  if (_socket == nil) {
+    // Already stopped
+    return;
+  }
+  [[NSNotificationCenter defaultCenter] removeObserver:_bundleURLChangeObserver];
+  _bundleURLChangeObserver = nil;
+  _socketConnected = NO;
+  [_socket stop];
+  _socket = nil;
+  _notificationRegistrations.clear();
+  _requestRegistrations.clear();
+}
+
+- (void)bundleURLSettingsChanged
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  if (_socket == nil) {
+    return; // already stopped
+  }
+
+  NSString *const jsLocation = [RCTBundleURLProvider sharedSettings].jsLocation;
+  if ([jsLocation isEqual:_jsLocationForSocket]) {
+    return; // unchanged
+  }
+
+  _socket.delegate = nil;
+  [_socket stop];
+  _jsLocationForSocket = jsLocation;
+  _socket = socketForLocation(jsLocation);
+  _socket.delegate = self;
+  [_socket start];
+}
+
+- (RCTHandlerToken)addNotificationHandler:(RCTNotificationHandler)handler queue:(dispatch_queue_t)queue forMethod:(NSString *)method
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  const auto token = _nextToken++;
+  _notificationRegistrations.push_back({method, handler, queue, token});
+  return token;
+}
+
+- (RCTHandlerToken)addRequestHandler:(RCTRequestHandler)handler queue:(dispatch_queue_t)queue forMethod:(NSString *)method
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  const auto token = _nextToken++;
+  _requestRegistrations.push_back({method, handler, queue, token});
+  return token;
+}
+
+- (RCTHandlerToken)addConnectedHandler:(RCTConnectedHandler)handler queue:(dispatch_queue_t)queue
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  if (_socketConnected) {
+    dispatch_async(queue, ^{
+      handler();
+    });
+    return 0; // _nextToken starts at 1, so 0 is a no-op token
+  } else {
+    const auto token = _nextToken++;
+    _connectedRegistrations.push_back({nil, handler, queue, token});
+    return token;
+  }
+}
+
+- (void)removeHandler:(RCTHandlerToken)token
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  eraseRegistrationsWithToken(_notificationRegistrations, token);
+  eraseRegistrationsWithToken(_requestRegistrations, token);
+  eraseRegistrationsWithToken(_connectedRegistrations, token);
+}
+
+template <typename Handler>
+static void eraseRegistrationsWithToken(std::vector<Registration<Handler>> &registrations, RCTHandlerToken token)
+{
+  registrations.erase(std::remove_if(registrations.begin(), registrations.end(),
+                                     [&token](const auto &reg) { return reg.token == token; }),
+                      registrations.end());
+}
+
+- (void)addHandler:(id<RCTPackagerClientMethod>)handler forMethod:(NSString *)method
+{
+  dispatch_queue_t queue = [handler respondsToSelector:@selector(methodQueue)]
+  ? [handler methodQueue] : dispatch_get_main_queue();
+
+  [self addNotificationHandler:^(NSDictionary<NSString *, id> *notification) {
+    [handler handleNotification:notification];
+  } queue:queue forMethod:method];
+  [self addRequestHandler:^(NSDictionary<NSString *, id> *request, RCTPackagerClientResponder *responder) {
+    [handler handleRequest:request withResponder:responder];
+  } queue:queue forMethod:method];
+}
+
+static BOOL isSupportedVersion(NSNumber *version)
+{
+  NSArray<NSNumber *> *const kSupportedVersions = @[ @(RCT_PACKAGER_CLIENT_PROTOCOL_VERSION) ];
+  return [kSupportedVersions containsObject:version];
+}
+
+#pragma mark - RCTReconnectingWebSocketDelegate
+
+- (void)reconnectingWebSocketDidOpen:(RCTReconnectingWebSocket *)webSocket
+{
+  std::vector<Registration<RCTConnectedHandler>> registrations;
+  {
+    std::lock_guard<std::mutex> l(_mutex);
+    _socketConnected = YES;
+    registrations = _connectedRegistrations;
+    _connectedRegistrations.clear();
+  }
+  for (const auto &registration : registrations) {
+    // Beware: don't capture the reference to handler in a dispatched block!
+    RCTConnectedHandler handler = registration.handler;
+    dispatch_async(registration.queue, ^{ handler(); });
+  }
+}
+
+- (void)reconnectingWebSocket:(RCTReconnectingWebSocket *)webSocket didReceiveMessage:(id)message
+{
+  NSError *error = nil;
+  NSDictionary<NSString *, id> *msg = RCTJSONParse(message, &error);
+
+  if (error) {
+    RCTLogError(@"%@ failed to parse message with error %@\n<message>\n%@\n</message>", [self class], error, msg);
+    return;
+  }
+
+  if (!isSupportedVersion(msg[@"version"])) {
+    RCTLogError(@"%@ received message with not supported version %@", [self class], msg[@"version"]);
+    return;
+  }
+
+  NSString *const method = msg[@"method"];
+  NSDictionary<NSString *, id> *const params = msg[@"params"];
+  id messageId = msg[@"id"];
+
+  if (messageId) { // Request
+    const std::vector<Registration<RCTRequestHandler>> registrations(registrationsWithMethod(_mutex, _requestRegistrations, method));
+    if (registrations.empty()) {
+      RCTLogError(@"No handler found for packager method %@", msg[@"method"]);
+      [[[RCTPackagerClientResponder alloc] initWithId:messageId
+                                               socket:webSocket]
+       respondWithError:
+       [NSString stringWithFormat:@"No handler found for packager method %@", msg[@"method"]]];
+    } else {
+      // If there are multiple matching request registrations, only one can win;
+      // otherwise the packager would get multiple responses. Choose the last one.
+      RCTRequestHandler handler = registrations.back().handler;
+      dispatch_async(registrations.back().queue, ^{
+        handler(params, [[RCTPackagerClientResponder alloc] initWithId:messageId socket:webSocket]);
+      });
+    }
+  } else { // Notification
+    const std::vector<Registration<RCTNotificationHandler>> registrations(registrationsWithMethod(_mutex, _notificationRegistrations, method));
+    for (const auto &registration : registrations) {
+      // Beware: don't capture the reference to handler in a dispatched block!
+      RCTNotificationHandler handler = registration.handler;
+      dispatch_async(registration.queue, ^{ handler(params); });
+    }
+  }
+}
+
+- (void)reconnectingWebSocketDidClose:(RCTReconnectingWebSocket *)webSocket
+{
+  std::lock_guard<std::mutex> l(_mutex);
+  _socketConnected = NO;
+}
+
+template <typename Handler>
+static std::vector<Registration<Handler>> registrationsWithMethod(std::mutex &mutex, const std::vector<Registration<Handler>> &registrations, NSString *method)
+{
+  std::lock_guard<std::mutex> l(mutex); // Scope lock acquisition to prevent deadlock when calling out
+  std::vector<Registration<Handler>> matches;
+  for (const auto &reg : registrations) {
+    if ([reg.method isEqual:method]) {
+      matches.push_back(reg);
+    }
+  }
+  return matches;
+}
+
+@end
+
+#endif

React/DevSupport/RCTPackagerConnectionBridgeConfig.h

@@ -1,26 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import "RCTPackagerConnectionConfig.h"
-
-#if RCT_DEV // Only supported in dev mode
-
-NS_ASSUME_NONNULL_BEGIN
-
-@class RCTBridge;
-
-@interface RCTPackagerConnectionBridgeConfig : NSObject <RCTPackagerConnectionConfig>
-
-- (instancetype)initWithBridge:(RCTBridge *)bridge;
-
-@end
-
-NS_ASSUME_NONNULL_END
-
-#endif

React/DevSupport/RCTPackagerConnectionBridgeConfig.m

@@ -1,67 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import "RCTPackagerConnectionBridgeConfig.h"
-
-#import <objc/runtime.h>
-
-#import <React/RCTBridge.h>
-#import <React/RCTBundleURLProvider.h>
-
-#import "RCTJSEnvironment.h"
-#import "RCTReloadPackagerMethod.h"
-#import "RCTSamplingProfilerPackagerMethod.h"
-
-#if RCT_DEV // Only supported in dev mode
-
-@implementation RCTPackagerConnectionBridgeConfig {
-  id<RCTJSEnvironment> _jsEnvironment;
-  RCTReloadPackagerMethodBlock _reloadCommand;
-  NSURL *_sourceURL;
-}
-
-- (instancetype)initWithBridge:(RCTBridge *)bridge
-{
-  if (self = [super init]) {
-    _jsEnvironment = bridge;
-    _sourceURL = [bridge.bundleURL copy];
-    __weak RCTBridge *weakBridge = bridge;
-    _reloadCommand = ^(id params) {
-      if (params != (id)kCFNull && [params[@"debug"] boolValue]) {
-        weakBridge.executorClass = objc_lookUpClass("RCTWebSocketExecutor");
-      }
-      [weakBridge reload];
-    };
-  }
-  return self;
-}
-
-- (NSURL *)packagerURL
-{
-  NSURLComponents *components = [NSURLComponents new];
-  NSString *host = [_sourceURL host];
-  components.host = host ?: @"localhost";
-  components.scheme = host ? [_sourceURL scheme] : @"http";
-  components.port = [_sourceURL port] ?: @(kRCTBundleURLProviderDefaultPort);
-  components.path = @"/message";
-  components.queryItems = @[[NSURLQueryItem queryItemWithName:@"role" value:@"ios-rn-rctdevmenu"]];
-  return components.URL;
-}
-
-- (NSDictionary<NSString *, id<RCTPackagerClientMethod>> *)defaultPackagerMethods
-{
-  return @{
-           @"reload": [[RCTReloadPackagerMethod alloc] initWithReloadCommand:_reloadCommand callbackQueue:dispatch_get_main_queue()],
-           @"pokeSamplingProfiler": [[RCTSamplingProfilerPackagerMethod alloc] initWithJSEnvironment:_jsEnvironment]
-           };
-}
-
-@end
-
-#endif

React/DevSupport/RCTPackagerConnectionConfig.h

@@ -1,27 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import <React/RCTDefines.h>
-
-#if RCT_DEV // Only supported in dev mode
-
-NS_ASSUME_NONNULL_BEGIN
-
-@protocol RCTPackagerClientMethod;
-
-@protocol RCTPackagerConnectionConfig
-
-@property (nonatomic, copy, readonly) NSURL *packagerURL;
-@property (nonatomic, copy, readonly) NSDictionary<NSString *, id<RCTPackagerClientMethod>> *defaultPackagerMethods;
-
-@end
-
-NS_ASSUME_NONNULL_END
-
-#endif

React/DevSupport/RCTReloadPackagerMethod.h

@@ -1,28 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import <React/RCTPackagerClient.h>
-
-@class RCTBridge;
-
-#if RCT_DEV // Only supported in dev mode
-
-NS_ASSUME_NONNULL_BEGIN
-
-typedef void (^RCTReloadPackagerMethodBlock)(id);
-
-@interface RCTReloadPackagerMethod : NSObject <RCTPackagerClientMethod>
-
-- (instancetype)initWithReloadCommand:(RCTReloadPackagerMethodBlock)block callbackQueue:(dispatch_queue_t)callbackQueue;
-
-@end
-
-NS_ASSUME_NONNULL_END
-
-#endif

React/DevSupport/RCTReloadPackagerMethod.m

@@ -1,47 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import "RCTReloadPackagerMethod.h"
-
-#import "RCTBridge.h"
-
-#if RCT_DEV // Only supported in dev mode
-
-@implementation RCTReloadPackagerMethod {
-  RCTReloadPackagerMethodBlock _block;
-  dispatch_queue_t _callbackQueue;
-}
-
-- (instancetype)initWithReloadCommand:(RCTReloadPackagerMethodBlock)block callbackQueue:(dispatch_queue_t)callbackQueue
-{
-  if (self = [super init]) {
-    _block = [block copy];
-    _callbackQueue = callbackQueue;
-  }
-  return self;
-}
-
-- (void)handleRequest:(__unused id)params withResponder:(RCTPackagerClientResponder *)responder
-{
-  [responder respondWithError:[NSString stringWithFormat: @"%@ does not support onRequest", [self class]]];
-}
-
-- (void)handleNotification:(id)params
-{
-  _block(params);
-}
-
-- (dispatch_queue_t)methodQueue
-{
-  return _callbackQueue;
-}
-
-@end
-
-#endif

React/DevSupport/RCTSamplingProfilerPackagerMethod.h

@@ -1,22 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import <React/RCTPackagerClient.h>
-
-@protocol RCTJSEnvironment;
-
-#if RCT_DEV // Only supported in dev mode
-
-@interface RCTSamplingProfilerPackagerMethod : NSObject <RCTPackagerClientMethod>
-
-- (instancetype)initWithJSEnvironment:(id<RCTJSEnvironment>)jsEnvironment;
-
-@end
-
-#endif

React/DevSupport/RCTSamplingProfilerPackagerMethod.mm

@@ -1,59 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import "RCTSamplingProfilerPackagerMethod.h"
-
-#import <JavaScriptCore/JavaScriptCore.h>
-
-#import <jschelpers/JavaScriptCore.h>
-
-#import "RCTJSEnvironment.h"
-#import "RCTLog.h"
-
-#if RCT_DEV // Only supported in dev mode
-
-@implementation RCTSamplingProfilerPackagerMethod {
-  __weak id<RCTJSEnvironment> _jsEnvironment;
-}
-
-- (instancetype)initWithJSEnvironment:(id<RCTJSEnvironment>)jsEnvironment
-{
-  if (self = [super init]) {
-    _jsEnvironment = jsEnvironment;
-  }
-  return self;
-}
-
-- (void)handleRequest:(__unused id)params withResponder:(RCTPackagerClientResponder *)responder
-{
-  JSGlobalContextRef globalContext = _jsEnvironment.jsContextRef;
-  if (!JSC_JSSamplingProfilerEnabled(globalContext)) {
-    [responder respondWithError:@"The JSSamplingProfiler is disabled. See 'iOS specific setup' section here https://fburl.com/u4lw7xeq for some help"];
-    return;
-  }
-
-  // JSPokeSamplingProfiler() toggles the profiling process
-  JSValueRef jsResult = JSC_JSPokeSamplingProfiler(globalContext);
-  if (JSC_JSValueGetType(globalContext, jsResult) == kJSTypeNull) {
-    [responder respondWithResult:@"started"];
-  } else {
-    JSContext *context = _jsEnvironment.jsContext;
-    NSString *results = [[JSC_JSValue(globalContext) valueWithJSValueRef:jsResult inContext:context] toObject];
-    [responder respondWithResult:results];
-  }
-}
-
-- (void)handleNotification:(__unused id)params
-{
-  RCTLogError(@"%@ does not implement onNotification", [self class]);
-}
-
-@end
-
-#endif

React/Modules/RCTDevSettings.h

@@ -93,9 +93,7 @@
 @property (nonatomic, assign) BOOL isPerfMonitorShown;
 
 #if RCT_DEV
-
+- (void)addHandler:(id<RCTPackagerClientMethod>)handler forPackagerMethod:(NSString *)name __deprecated_msg("Use RCTPackagerConnection directly instead");
-- (void)addHandler:(id<RCTPackagerClientMethod>)handler forPackagerMethod:(NSString *)name;
-
 #endif
 
 @end

React/Modules/RCTDevSettings.mm

@@ -19,8 +19,8 @@
 #import "RCTBridgeModule.h"
 #import "RCTEventDispatcher.h"
 #import "RCTJSCSamplingProfiler.h"
-#import "RCTJSEnvironment.h"
 #import "RCTLog.h"
+#import "RCTPackagerClient.h"
 #import "RCTProfile.h"
 #import "RCTUtils.h"
 
@@ -111,9 +111,9 @@ static NSString *const kRCTDevSettingsUserDefaultsKey = @"RCTDevMenu";
   NSURLSessionDataTask *_liveReloadUpdateTask;
   NSURL *_liveReloadURL;
   BOOL _isJSLoaded;
-
 #if ENABLE_PACKAGER_CONNECTION
-  RCTPackagerConnection *_packagerConnection;
+  RCTHandlerToken _reloadToken;
+  RCTHandlerToken _pokeSamplingProfilerToken;
 #endif
 }
 
@@ -165,7 +165,28 @@ RCT_EXPORT_MODULE()
 {
   RCTAssert(_bridge == nil, @"RCTDevSettings module should not be reused");
   _bridge = bridge;
-  [self _configurePackagerConnection];
+
+#if ENABLE_PACKAGER_CONNECTION
+  RCTBridge *__weak weakBridge = bridge;
+  _reloadToken =
+  [[RCTPackagerConnection sharedPackagerConnection]
+   addNotificationHandler:^(id params) {
+     if (params != (id)kCFNull && [params[@"debug"] boolValue]) {
+       weakBridge.executorClass = objc_lookUpClass("RCTWebSocketExecutor");
+     }
+     [weakBridge reload];
+   }
+   queue:dispatch_get_main_queue()
+   forMethod:@"reload"];
+
+  _pokeSamplingProfilerToken =
+  [[RCTPackagerConnection sharedPackagerConnection]
+   addRequestHandler:^(NSDictionary<NSString *, id> *params, RCTPackagerClientResponder *responder) {
+     pokeSamplingProfiler(weakBridge, responder);
+   }
+   queue:dispatch_get_main_queue()
+   forMethod:@"pokeSamplingProfiler"];
+#endif
 
 #if RCT_ENABLE_INSPECTOR
   // we need this dispatch back to the main thread because even though this
@@ -182,6 +203,30 @@ RCT_EXPORT_MODULE()
 #endif
 }
 
+static void pokeSamplingProfiler(RCTBridge *const bridge, RCTPackagerClientResponder *const responder)
+{
+  if (!bridge) {
+    [responder respondWithError:@"The bridge is nil. Try again."];
+    return;
+  }
+
+  JSGlobalContextRef globalContext = bridge.jsContextRef;
+  if (!JSC_JSSamplingProfilerEnabled(globalContext)) {
+    [responder respondWithError:@"The JSSamplingProfiler is disabled. See 'iOS specific setup' section here https://fburl.com/u4lw7xeq for some help"];
+    return;
+  }
+
+  // JSPokeSamplingProfiler() toggles the profiling process
+  JSValueRef jsResult = JSC_JSPokeSamplingProfiler(globalContext);
+  if (JSC_JSValueGetType(globalContext, jsResult) == kJSTypeNull) {
+    [responder respondWithResult:@"started"];
+  } else {
+    JSContext *context = [JSC_JSContext(globalContext) contextWithJSGlobalContextRef:globalContext];
+    NSString *results = [[JSC_JSValue(globalContext) valueWithJSValueRef:jsResult inContext:context] toObject];
+    [responder respondWithResult:results];
+  }
+}
+
 - (dispatch_queue_t)methodQueue
 {
   return dispatch_get_main_queue();
@@ -190,6 +235,10 @@ RCT_EXPORT_MODULE()
 - (void)invalidate
 {
   [_liveReloadUpdateTask cancel];
+#if ENABLE_PACKAGER_CONNECTION
+  [[RCTPackagerConnection sharedPackagerConnection] removeHandler:_reloadToken];
+  [[RCTPackagerConnection sharedPackagerConnection] removeHandler:_pokeSamplingProfilerToken];
+#endif
   [[NSNotificationCenter defaultCenter] removeObserver:self];
 }
 
@@ -338,12 +387,12 @@ RCT_EXPORT_METHOD(toggleElementInspector)
 
 - (void)toggleJSCSamplingProfiler
 {
-  JSContext *context = _bridge.jsContext;
+  JSGlobalContextRef globalContext = _bridge.jsContextRef;
-  JSGlobalContextRef globalContext = context.JSGlobalContextRef;
   // JSPokeSamplingProfiler() toggles the profiling process
   JSValueRef jsResult = JSC_JSPokeSamplingProfiler(globalContext);
 
   if (JSC_JSValueGetType(globalContext, jsResult) != kJSTypeNull) {
+    JSContext *context = [JSC_JSContext(globalContext) contextWithJSGlobalContextRef:globalContext];
     NSString *results = [[JSC_JSValue(globalContext) valueWithJSValueRef:jsResult inContext:context] toObject];
     RCTJSCSamplingProfiler *profilerModule = [_bridge moduleForClass:[RCTJSCSamplingProfiler class]];
     [profilerModule operationCompletedWithResults:results];
@@ -394,33 +443,19 @@ RCT_EXPORT_METHOD(toggleElementInspector)
   }
 }
 
-#if ENABLE_PACKAGER_CONNECTION
+#if RCT_DEV
 
 - (void)addHandler:(id<RCTPackagerClientMethod>)handler forPackagerMethod:(NSString *)name
 {
-  RCTAssert(_packagerConnection, @"Expected packager connection");
+#if ENABLE_PACKAGER_CONNECTION
-  [_packagerConnection addHandler:handler forMethod:name];
+  [[RCTPackagerConnection sharedPackagerConnection] addHandler:handler forMethod:name];
+#endif
 }
 
-#elif RCT_DEV
-
-- (void)addHandler:(id<RCTPackagerClientMethod>)handler forPackagerMethod:(NSString *)name {}
-
 #endif
 
 #pragma mark - Internal
 
-- (void)_configurePackagerConnection
-{
-#if ENABLE_PACKAGER_CONNECTION
-  if (_packagerConnection) {
-    return;
-  }
-
-  _packagerConnection = [RCTPackagerConnection connectionForBridge:_bridge];
-#endif
-}
-
 /**
  *  Query the data source for all possible settings and make sure we're doing the right
  *  thing for the state of each setting.

React/React.xcodeproj/project.pbxproj

@@ -548,16 +548,8 @@
 		3D7BFD181EA8E351008DFB7A /* RCTPackagerClient.m in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD0C1EA8E351008DFB7A /* RCTPackagerClient.m */; };
 		3D7BFD1D1EA8E351008DFB7A /* RCTPackagerConnection.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD0F1EA8E351008DFB7A /* RCTPackagerConnection.h */; };
 		3D7BFD1E1EA8E351008DFB7A /* RCTPackagerConnection.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD0F1EA8E351008DFB7A /* RCTPackagerConnection.h */; };
-		3D7BFD1F1EA8E351008DFB7A /* RCTPackagerConnection.m in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD101EA8E351008DFB7A /* RCTPackagerConnection.m */; };
+		3D7BFD1F1EA8E351008DFB7A /* RCTPackagerConnection.mm in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD101EA8E351008DFB7A /* RCTPackagerConnection.mm */; };
-		3D7BFD201EA8E351008DFB7A /* RCTPackagerConnection.m in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD101EA8E351008DFB7A /* RCTPackagerConnection.m */; };
+		3D7BFD201EA8E351008DFB7A /* RCTPackagerConnection.mm in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD101EA8E351008DFB7A /* RCTPackagerConnection.mm */; };
-		3D7BFD211EA8E351008DFB7A /* RCTReloadPackagerMethod.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD111EA8E351008DFB7A /* RCTReloadPackagerMethod.h */; };
-		3D7BFD221EA8E351008DFB7A /* RCTReloadPackagerMethod.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD111EA8E351008DFB7A /* RCTReloadPackagerMethod.h */; };
-		3D7BFD231EA8E351008DFB7A /* RCTReloadPackagerMethod.m in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD121EA8E351008DFB7A /* RCTReloadPackagerMethod.m */; };
-		3D7BFD241EA8E351008DFB7A /* RCTReloadPackagerMethod.m in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD121EA8E351008DFB7A /* RCTReloadPackagerMethod.m */; };
-		3D7BFD251EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD131EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.h */; };
-		3D7BFD261EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD131EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.h */; };
-		3D7BFD271EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.mm in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD141EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.mm */; };
-		3D7BFD281EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.mm in Sources */ = {isa = PBXBuildFile; fileRef = 3D7BFD141EA8E351008DFB7A /* RCTSamplingProfilerPackagerMethod.mm */; };
 		3D7BFD291EA8E37B008DFB7A /* RCTDevSettings.h in Copy Headers */ = {isa = PBXBuildFile; fileRef = 130E3D861E6A082100ACE484 /* RCTDevSettings.h */; };
 		3D7BFD2D1EA8E3FA008DFB7A /* RCTReconnectingWebSocket.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD2B1EA8E3FA008DFB7A /* RCTReconnectingWebSocket.h */; };
 		3D7BFD2E1EA8E3FA008DFB7A /* RCTReconnectingWebSocket.h in Headers */ = {isa = PBXBuildFile; fileRef = 3D7BFD2B1EA8E3FA008DFB7A /* RCTReconnectingWebSocket.h */; };
@@ -1151,19 +1143,9 @@
 		C606692F1F3CC60500E67165 /* RCTModuleMethod.mm in Sources */ = {isa = PBXBuildFile; fileRef = C606692D1F3CC60500E67165 /* RCTModuleMethod.mm */; };
 		C60669361F3CCF1B00E67165 /* RCTManagedPointer.mm in Sources */ = {isa = PBXBuildFile; fileRef = C60669351F3CCF1B00E67165 /* RCTManagedPointer.mm */; };
 		C60669371F3CCF1B00E67165 /* RCTManagedPointer.mm in Sources */ = {isa = PBXBuildFile; fileRef = C60669351F3CCF1B00E67165 /* RCTManagedPointer.mm */; };
-		C6194AAC1EF156280034D062 /* RCTPackagerConnectionBridgeConfig.h in Headers */ = {isa = PBXBuildFile; fileRef = C6194AA91EF156280034D062 /* RCTPackagerConnectionBridgeConfig.h */; };
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 				2D3B5EEA1D9B09CD00451313 /* RCTTabBar.m in Sources */,
-				3D7BFCEA1EA8E1F4008DFB7A /* RCTPackagerConnection.m in Sources */,
+				3D7BFCEA1EA8E1F4008DFB7A /* RCTPackagerConnection.mm in Sources */,
 				2D3B5EAE1D9B08F800451313 /* RCTEventEmitter.m in Sources */,
-				A12E9E901E5DFA6E0029001B /* RCTSamplingProfilerPackagerMethod.mm in Sources */,
 				C606693A1F3CCF3F00E67165 /* RCTManagedPointer.mm in Sources */,
 				2D3B5ECA1D9B095F00451313 /* RCTComponentData.m in Sources */,
 				2D3B5EA31D9B08BE00451313 /* RCTParserUtils.m in Sources */,
@@ -2575,7 +2528,6 @@
 				3D4153571F276EE1005B8EFE /* RCTLayoutAnimation.m in Sources */,
 				59DA562E1F71C6C700D9EADA /* RCTUIManagerUtils.m in Sources */,
 				2D3B5E971D9B089000451313 /* RCTBridge.m in Sources */,
-				C6194AB81EF1569C0034D062 /* RCTPackagerConnectionBridgeConfig.m in Sources */,
 				2D3B5E9B1D9B08A000451313 /* RCTFrameUpdate.m in Sources */,
 				2D3B5EE41D9B09BB00451313 /* RCTSegmentedControlManager.m in Sources */,
 				2D3B5EE31D9B09B700451313 /* RCTSegmentedControl.m in Sources */,
@@ -2624,7 +2576,6 @@
 				C6FC33531F70494F00643E54 /* RCTShadowView+Internal.m in Sources */,
 				2D3B5EC61D9B095000451313 /* RCTProfileTrampoline-x86_64.S in Sources */,
 				594AD5D41E46D87500B07237 /* RCTScrollContentViewManager.m in Sources */,
-				A12E9E5D1E5DF8720029001B /* RCTReloadPackagerMethod.m in Sources */,
 				3D5AC71A1E0056E0000F9153 /* RCTTVNavigationEventEmitter.m in Sources */,
 				2D3B5EA61D9B08CA00451313 /* RCTTouchEvent.m in Sources */,
 				5954055A1EC03A1700766D3C /* RCTShadowView+Layout.m in Sources */,
@@ -2726,14 +2677,12 @@
 				133CAE8E1B8E5CFD00F6AD92 /* RCTDatePicker.m in Sources */,
 				14C2CA761B3AC64F00E6CBB2 /* RCTFrameUpdate.m in Sources */,
 				13B07FEF1A69327A00A75B9A /* RCTAlertManager.m in Sources */,
-				C6194AB71EF1569C0034D062 /* RCTPackagerConnectionBridgeConfig.m in Sources */,
 				352DCFF01D19F4C20056D623 /* RCTI18nUtil.m in Sources */,
 				008341F61D1DB34400876D9A /* RCTJSStackFrame.m in Sources */,
 				83CBBACC1A6023D300E9B192 /* RCTConvert.m in Sources */,
 				131B6AF41AF1093D00FFC3E0 /* RCTSegmentedControl.m in Sources */,
 				830A229E1A66C68A008503DA /* RCTRootView.m in Sources */,
 				13B07FF01A69327A00A75B9A /* RCTExceptionsManager.m in Sources */,
-				A12E9E8F1E5DFA620029001B /* RCTSamplingProfilerPackagerMethod.mm in Sources */,
 				13BCE8091C99CB9D00DD7AAD /* RCTRootShadowView.m in Sources */,
 				595405591EC03A1700766D3C /* RCTShadowView+Layout.m in Sources */,
 				006FC4141D9B20820057AAAD /* RCTMultipartDataTask.m in Sources */,
@@ -2752,7 +2701,7 @@
 				14F3620E1AABD06A001CE568 /* RCTSwitchManager.m in Sources */,
 				13B080201A69489C00A75B9A /* RCTActivityIndicatorViewManager.m in Sources */,
 				13E067561A70F44B002CDEE1 /* RCTViewManager.m in Sources */,
-				3D7BFCE91EA8E1F4008DFB7A /* RCTPackagerConnection.m in Sources */,
+				3D7BFCE91EA8E1F4008DFB7A /* RCTPackagerConnection.mm in Sources */,
 				13BB3D021BECD54500932C10 /* RCTImageSource.m in Sources */,
 				58C571C11AA56C1900CDF9C8 /* RCTDatePickerManager.m in Sources */,
 				1450FF8A1BCFF28A00208362 /* RCTProfileTrampoline-x86_64.S in Sources */,
@@ -2822,7 +2771,6 @@
 				13B0801C1A69489C00A75B9A /* RCTNavItem.m in Sources */,
 				83CBBA691A601EF300E9B192 /* RCTEventDispatcher.m in Sources */,
 				3D41536E1F277087005B8EFE /* RCTMaskedViewManager.m in Sources */,
-				A12E9E5B1E5DF8600029001B /* RCTReloadPackagerMethod.m in Sources */,
 				83A1FE8F1B62643A00BE0E65 /* RCTModalHostViewManager.m in Sources */,
 				13E0674A1A70F434002CDEE1 /* RCTUIManager.m in Sources */,
 				391E86A41C623EC800009732 /* RCTTouchEvent.m in Sources */,