graceful exit

mobile/lib/domain/services/background_worker.service.dart

@@ -24,12 +24,11 @@ import 'package:immich_mobile/providers/user.provider.dart';
 import 'package:immich_mobile/repositories/file_media.repository.dart';
 import 'package:immich_mobile/services/app_settings.service.dart';
 import 'package:immich_mobile/services/auth.service.dart';
-import 'package:immich_mobile/services/localization.service.dart';
 import 'package:immich_mobile/services/foreground_upload.service.dart';
+import 'package:immich_mobile/services/localization.service.dart';
 import 'package:immich_mobile/utils/bootstrap.dart';
 import 'package:immich_mobile/utils/debug_print.dart';
 import 'package:immich_mobile/utils/http_ssl_options.dart';
-import 'package:immich_mobile/wm_executor.dart';
 import 'package:isar/isar.dart';
 import 'package:logging/logging.dart';
 
@@ -93,7 +92,6 @@ class BackgroundWorkerBgService extends BackgroundWorkerFlutterApi {
       await Future.wait(
         [
           loadTranslations(),
-          workerManagerPatch.init(dynamicSpawning: true),
           _ref?.read(authServiceProvider).setOpenApiServiceEndpoint(),
           // Initialize the file downloader
           FileDownloader().configure(
@@ -203,14 +201,10 @@ class BackgroundWorkerBgService extends BackgroundWorkerFlutterApi {
 
       final cleanupFutures = [
         nativeSyncApi?.cancelHashing(),
-        workerManagerPatch.dispose().catchError((_) async {
-          // Discard any errors on the dispose call
-          return;
-        }),
         LogService.I.dispose(),
         Store.dispose(),
-
         backgroundSyncManager?.cancel(),
+        backgroundSyncManager?.cancelLocal(),
       ];
 
       if (_isar.isOpen) {

mobile/lib/domain/utils/background_sync.dart

@@ -4,7 +4,6 @@ import 'package:immich_mobile/domain/utils/migrate_cloud_ids.dart' as m;
 import 'package:immich_mobile/domain/utils/sync_linked_album.dart';
 import 'package:immich_mobile/providers/infrastructure/sync.provider.dart';
 import 'package:immich_mobile/utils/isolate.dart';
-import 'package:worker_manager/worker_manager.dart';
 
 typedef SyncCallback = void Function();
 typedef SyncCallbackWithResult<T> = void Function(T result);
@@ -27,12 +26,12 @@ class BackgroundSyncManager {
   final SyncCallback? onCloudIdSyncComplete;
   final SyncErrorCallback? onCloudIdSyncError;
 
-  Cancelable<bool?>? _syncTask;
-  Cancelable<void>? _syncWebsocketTask;
-  Cancelable<void>? _cloudIdSyncTask;
-  Cancelable<void>? _deviceAlbumSyncTask;
-  Cancelable<void>? _linkedAlbumSyncTask;
-  Cancelable<void>? _hashTask;
+  CancellableTask<bool>? _syncTask;
+  CancellableTask<void>? _syncWebsocketTask;
+  CancellableTask<void>? _cloudIdSyncTask;
+  CancellableTask<void>? _deviceAlbumSyncTask;
+  CancellableTask<void>? _linkedAlbumSyncTask;
+  CancellableTask<void>? _hashTask;
 
   BackgroundSyncManager({
     this.onRemoteSyncStart,
@@ -50,59 +49,42 @@ class BackgroundSyncManager {
   });
 
   Future<void> cancel() async {
-    final futures = <Future>[];
-
-    if (_syncTask != null) {
-      futures.add(_syncTask!.future);
-    }
-    _syncTask?.cancel();
-    _syncTask = null;
-
-    if (_syncWebsocketTask != null) {
-      futures.add(_syncWebsocketTask!.future);
-    }
-    _syncWebsocketTask?.cancel();
-    _syncWebsocketTask = null;
-
-    if (_cloudIdSyncTask != null) {
-      futures.add(_cloudIdSyncTask!.future);
-    }
-    _cloudIdSyncTask?.cancel();
-    _cloudIdSyncTask = null;
-
-    if (_linkedAlbumSyncTask != null) {
-      futures.add(_linkedAlbumSyncTask!.future);
-    }
-    _linkedAlbumSyncTask?.cancel();
-    _linkedAlbumSyncTask = null;
+    _syncTask!.cancel();
+    _syncWebsocketTask!.cancel();
+    _cloudIdSyncTask!.cancel();
+    _linkedAlbumSyncTask!.cancel();
 
     try {
-      await Future.wait(futures);
-    } on CanceledError {
-      // Ignore cancellation errors
+      await Future.wait(
+        [
+          _syncTask?.future,
+          _syncWebsocketTask?.future,
+          _cloudIdSyncTask?.future,
+          _linkedAlbumSyncTask?.future,
+        ].nonNulls,
+      );
+    } catch (e) {
+      // Ignore cancellation errors and cleanup timeouts
     }
+
+    _syncTask = null;
+    _syncWebsocketTask = null;
+    _cloudIdSyncTask = null;
+    _linkedAlbumSyncTask = null;
   }
 
   Future<void> cancelLocal() async {
-    final futures = <Future>[];
-
-    if (_hashTask != null) {
-      futures.add(_hashTask!.future);
-    }
-    _hashTask?.cancel();
-    _hashTask = null;
-
-    if (_deviceAlbumSyncTask != null) {
-      futures.add(_deviceAlbumSyncTask!.future);
-    }
-    _deviceAlbumSyncTask?.cancel();
-    _deviceAlbumSyncTask = null;
+    _hashTask!.cancel();
+    _deviceAlbumSyncTask!.cancel();
 
     try {
-      await Future.wait(futures);
-    } on CanceledError {
-      // Ignore cancellation errors
+      await Future.wait([_hashTask?.future, _deviceAlbumSyncTask?.future].nonNulls);
+    } catch (e) {
+      // Ignore cancellation errors and cleanup timeouts
     }
+
+    _hashTask = null;
+    _deviceAlbumSyncTask = null;
   }
 
   // No need to cancel the task, as it can also be run when the user logs out
@@ -133,7 +115,8 @@ class BackgroundSyncManager {
         .catchError((error) {
           onLocalSyncError?.call(error.toString());
           _deviceAlbumSyncTask = null;
-        });
+        })
+        .future;
   }
 
   Future<void> hashAssets() {
@@ -156,7 +139,8 @@ class BackgroundSyncManager {
         .catchError((error) {
           onHashingError?.call(error.toString());
           _hashTask = null;
-        });
+        })
+        .future;
   }
 
   Future<bool> syncRemote() {
@@ -170,7 +154,7 @@ class BackgroundSyncManager {
       computation: (ref) => ref.read(syncStreamServiceProvider).sync(),
       debugLabel: 'remote-sync',
     );
-    return _syncTask!
+    return _syncTask!.future
         .then((result) {
           final success = result ?? false;
           onRemoteSyncComplete?.call(success);
@@ -193,7 +177,7 @@ class BackgroundSyncManager {
     _syncWebsocketTask = _handleWsAssetUploadReadyV1Batch(batchData);
     return _syncWebsocketTask!.whenComplete(() {
       _syncWebsocketTask = null;
-    });
+    }).future;
   }
 
   Future<void> syncLinkedAlbum() {
@@ -204,7 +188,7 @@ class BackgroundSyncManager {
     _linkedAlbumSyncTask = runInIsolateGentle(computation: syncLinkedAlbumsIsolated, debugLabel: 'linked-album-sync');
     return _linkedAlbumSyncTask!.whenComplete(() {
       _linkedAlbumSyncTask = null;
-    });
+    }).future;
   }
 
   Future<void> syncCloudIds() {
@@ -214,7 +198,7 @@ class BackgroundSyncManager {
 
     onCloudIdSyncStart?.call();
 
-    _cloudIdSyncTask = runInIsolateGentle(computation: m.syncCloudIds);
+    _cloudIdSyncTask = runInIsolateGentle(computation: m.syncCloudIds, debugLabel: 'cloud-id-sync');
     return _cloudIdSyncTask!
         .whenComplete(() {
           onCloudIdSyncComplete?.call();
@@ -223,11 +207,12 @@ class BackgroundSyncManager {
         .catchError((error) {
           onCloudIdSyncError?.call(error.toString());
           _cloudIdSyncTask = null;
-        });
+        })
+        .future;
   }
 }
 
-Cancelable<void> _handleWsAssetUploadReadyV1Batch(List<dynamic> batchData) => runInIsolateGentle(
+CancellableTask<void> _handleWsAssetUploadReadyV1Batch(List<dynamic> batchData) => runInIsolateGentle(
   computation: (ref) => ref.read(syncStreamServiceProvider).handleWsAssetUploadReadyV1Batch(batchData),
   debugLabel: 'websocket-batch',
 );

mobile/lib/main.dart

@@ -1,6 +1,5 @@
 import 'dart:async';
 import 'dart:io';
-import 'dart:math';
 
 import 'package:auto_route/auto_route.dart';
 import 'package:background_downloader/background_downloader.dart';
@@ -41,7 +40,6 @@ import 'package:immich_mobile/utils/debug_print.dart';
 import 'package:immich_mobile/utils/http_ssl_options.dart';
 import 'package:immich_mobile/utils/licenses.dart';
 import 'package:immich_mobile/utils/migration.dart';
-import 'package:immich_mobile/wm_executor.dart';
 import 'package:immich_ui/immich_ui.dart';
 import 'package:intl/date_symbol_data_local.dart';
 import 'package:logging/logging.dart';
@@ -53,8 +51,6 @@ void main() async {
   final (isar, drift, logDb) = await Bootstrap.initDB();
   await Bootstrap.initDomain(isar, drift, logDb);
   await initApp();
-  // Warm-up isolate pool for worker manager
-  await workerManagerPatch.init(dynamicSpawning: true, isolatesCount: max(Platform.numberOfProcessors - 1, 5));
   await migrateDatabaseIfNeeded(isar, drift);
   HttpSSLOptions.apply();
 

mobile/lib/providers/app_life_cycle.provider.dart

@@ -160,7 +160,7 @@ class AppLifeCycleNotifier extends StateNotifier<AppLifeCycleEnum> {
             _resumeBackup();
           }),
           _resumeBackup(),
-          backgroundManager.syncCloudIds(),
+          _safeRun(backgroundManager.syncCloudIds(), "syncCloudIds"),
         ]);
       } else {
         await _safeRun(backgroundManager.hashAssets(), "hashAssets");
@@ -218,7 +218,14 @@ class AppLifeCycleNotifier extends StateNotifier<AppLifeCycleEnum> {
 
     try {
       if (Store.isBetaTimelineEnabled) {
-        unawaited(_ref.read(backgroundWorkerLockServiceProvider).unlock());
+        unawaited(
+          Future.wait([
+            _ref.read(backgroundWorkerLockServiceProvider).unlock(),
+            _ref.read(nativeSyncApiProvider).cancelHashing(),
+            _ref.read(backgroundSyncProvider).cancel(),
+            _ref.read(backgroundSyncProvider).cancelLocal(),
+          ]),
+        );
       }
       await _performPause();
     } catch (e, stackTrace) {

mobile/lib/utils/isolate.dart

@@ -1,95 +1,304 @@
 import 'dart:async';
+import 'dart:isolate';
 import 'dart:ui';
 
 import 'package:flutter/services.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/domain/services/log.service.dart';
 import 'package:immich_mobile/entities/store.entity.dart';
+import 'package:immich_mobile/infrastructure/repositories/db.repository.dart';
+import 'package:immich_mobile/infrastructure/repositories/logger_db.repository.dart';
 import 'package:immich_mobile/providers/db.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/cancel.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/db.provider.dart';
 import 'package:immich_mobile/utils/bootstrap.dart';
 import 'package:immich_mobile/utils/debug_print.dart';
 import 'package:immich_mobile/utils/http_ssl_options.dart';
-import 'package:immich_mobile/wm_executor.dart';
+import 'package:isar/isar.dart';
 import 'package:logging/logging.dart';
-import 'package:worker_manager/worker_manager.dart';
 
-class InvalidIsolateUsageException implements Exception {
-  const InvalidIsolateUsageException();
+class CancellableTask<T> {
+  final Future<T?> future;
+  final void Function() cancel;
 
-  @override
-  String toString() => "IsolateHelper should only be used from the root isolate";
-}
+  const CancellableTask({required this.future, required this.cancel});
 
-// !! Should be used only from the root isolate
-Cancelable<T?> runInIsolateGentle<T>({
-  required Future<T> Function(ProviderContainer ref) computation,
-  String? debugLabel,
-}) {
-  final token = RootIsolateToken.instance;
-  if (token == null) {
-    throw const InvalidIsolateUsageException();
+  CancellableTask<T> whenComplete(void Function() action) {
+    return CancellableTask(future: future.whenComplete(action), cancel: cancel);
   }
 
-  return workerManagerPatch.executeGentle((cancelledChecker) async {
-    T? result;
+  CancellableTask<T> catchError(Function onError) {
+    return CancellableTask(future: future.catchError(onError), cancel: cancel);
+  }
+
+  CancellableTask<R> then<R>(FutureOr<R> Function(T?) onValue) {
+    return CancellableTask(future: future.then(onValue), cancel: cancel);
+  }
+}
+
+sealed class _IsolateMessage {
+  const _IsolateMessage();
+}
+
+class _InitMessage extends _IsolateMessage {
+  final SendPort sendPort;
+  const _InitMessage(this.sendPort);
+}
+
+class _CancelMessage extends _IsolateMessage {
+  const _CancelMessage();
+}
+
+class _ResultMessage extends _IsolateMessage {
+  final dynamic data;
+  const _ResultMessage(this.data);
+}
+
+class _ErrorMessage extends _IsolateMessage {
+  final Object? error;
+  final StackTrace? stackTrace;
+  const _ErrorMessage(this.error, [this.stackTrace]);
+}
+
+class _DoneMessage extends _IsolateMessage {
+  const _DoneMessage();
+}
+
+class _IsolateTaskConfig<T> {
+  final Future<T> Function(ProviderContainer ref) computation;
+  final SendPort mainSendPort;
+  final RootIsolateToken rootToken;
+  final String debugLabel;
+
+  const _IsolateTaskConfig({
+    required this.computation,
+    required this.mainSendPort,
+    required this.rootToken,
+    required this.debugLabel,
+  });
+}
+
+class _IsolateTaskRunner<T> {
+  final Completer<T?> _completer = Completer<T?>();
+  final ReceivePort _receivePort = ReceivePort();
+  final String debugLabel;
+
+  Isolate? _isolate;
+  SendPort? _isolateSendPort;
+  bool _isCancelled = false;
+  bool _isCleanedUp = false;
+  Timer? _cleanupTimeoutTimer;
+
+  _IsolateTaskRunner({required this.debugLabel});
+
+  Future<void> start(Future<T> Function(ProviderContainer ref) computation) async {
+    final token = RootIsolateToken.instance;
+    if (token == null) {
+      _completer.completeError(Exception("RootIsolateToken is not available. Isolate cannot be started."));
+      return;
+    }
+
+    _receivePort.listen(_handleMessage);
+
+    final config = _IsolateTaskConfig<T>(
+      computation: computation,
+      mainSendPort: _receivePort.sendPort,
+      rootToken: token,
+      debugLabel: debugLabel,
+    );
+
+    try {
+      _isolate = await Isolate.spawn(_isolateEntryPoint<T>, config, debugName: debugLabel);
+    } catch (error, stack) {
+      _completer.completeError(error, stack);
+      _cleanup();
+    }
+  }
+
+  void cancel() {
+    if (_isCancelled || _isCleanedUp) return;
+
+    _isCancelled = true;
+    dPrint(() => "[$debugLabel] Cancellation requested");
+
+    _isolateSendPort?.send(const _CancelMessage());
+    _cleanupTimeoutTimer = Timer(const Duration(seconds: 4), () {
+      if (!_isCleanedUp) {
+        dPrint(() => "[$debugLabel] Cleanup timeout - force killing isolate");
+        _isolate?.kill(priority: Isolate.immediate);
+        if (!_completer.isCompleted) {
+          _completer.completeError(Exception("Isolate cleanup timed out for task: $debugLabel"));
+        }
+        _cleanup();
+      }
+    });
+  }
+
+  void _handleMessage(dynamic message) {
+    if (message is! _IsolateMessage) return;
+
+    switch (message) {
+      case _InitMessage(:var sendPort):
+        _isolateSendPort = sendPort;
+        dPrint(() => "[$debugLabel] Isolate initialized");
+        break;
+
+      case _ResultMessage(:var data):
+        if (!_completer.isCompleted) {
+          _completer.complete(data as T?);
+          dPrint(() => "[$debugLabel] Isolate task completed with result - $data");
+        }
+        _cleanup();
+        break;
+
+      case _ErrorMessage(:var error, :var stackTrace):
+        if (!_completer.isCompleted) {
+          dPrint(() => "[$debugLabel] Isolate task completed with error - $error");
+          _completer.completeError(error ?? Exception("Unknown error in isolate"), stackTrace ?? StackTrace.current);
+        }
+        _cleanup();
+        break;
+
+      case _DoneMessage():
+        dPrint(() => "[$debugLabel] Isolate cleanup completed");
+        _cleanup();
+        break;
+
+      case _CancelMessage():
+        // Not expected to receive cancel from isolate
+        break;
+    }
+  }
+
+  void _cleanup() {
+    if (_isCleanedUp) return;
+    _isCleanedUp = true;
+
+    _cleanupTimeoutTimer?.cancel();
+    _receivePort.close();
+    _isolate?.kill(priority: Isolate.beforeNextEvent);
+    _isolate = null;
+    _isolateSendPort = null;
+
+    dPrint(() => "[$debugLabel] Isolate cleaned up");
+  }
+
+  Future<T?> get future => _completer.future;
+}
+
+Future<void> _cleanupResources<T>(ProviderContainer? ref, Isar isar, Drift drift, DriftLogger logDb) async {
+  try {
+    final cleanupFutures = <Future>[
+      Store.dispose(),
+      LogService.I.dispose(),
+      logDb.close(),
+      drift.close(),
+      if (isar.isOpen) isar.close().catchError((_) => false),
+    ];
+
+    ref?.dispose();
+
+    await Future.wait(cleanupFutures).timeout(
+      const Duration(seconds: 2),
+      onTimeout: () {
+        dPrint(() => "Cleanup timeout - some resources may not be closed");
+        return [];
+      },
+    );
+  } catch (error, stack) {
+    dPrint(() => "Error during isolate cleanup: $error with stack: $stack");
+  }
+}
+
+Future<void> _isolateEntryPoint<T>(_IsolateTaskConfig<T> config) async {
+  final receivePort = ReceivePort();
+  config.mainSendPort.send(_InitMessage(receivePort.sendPort));
+
+  bool isCancelled = false;
+  ProviderContainer? ref;
+  final Isar isar;
+  final Drift drift;
+  final DriftLogger logDb;
+
+  try {
+    BackgroundIsolateBinaryMessenger.ensureInitialized(config.rootToken);
+    DartPluginRegistrant.ensureInitialized();
+    final (bootIsar, bootDrift, bootLogDb) = await Bootstrap.initDB();
+    await Bootstrap.initDomain(bootIsar, bootDrift, bootLogDb, shouldBufferLogs: false, listenStoreUpdates: false);
+    isar = bootIsar;
+    drift = bootDrift;
+    logDb = bootLogDb;
+  } catch (error, stack) {
+    dPrint(() => "[$config.debugLabel] Error during isolate bootstrap: $error");
+    config.mainSendPort.send(_ErrorMessage(error, stack));
+    return;
+  }
+
+  final subscription = receivePort.listen((message) async {
+    if (message is _CancelMessage) {
+      isCancelled = true;
+      try {
+        receivePort.close();
+        await _cleanupResources(ref, isar, drift, logDb);
+      } catch (error, stack) {
+        dPrint(() => "Error during isolate cancellation cleanup: $error with stack: $stack");
+      } finally {
+        config.mainSendPort.send(const _ErrorMessage("Isolate task cancelled"));
+      }
+    }
+  });
+
+  final log = Logger("IsolateWorker[${config.debugLabel}]");
+  try {
     await runZonedGuarded(
       () async {
-        BackgroundIsolateBinaryMessenger.ensureInitialized(token);
-        DartPluginRegistrant.ensureInitialized();
-
-        final (isar, drift, logDb) = await Bootstrap.initDB();
-        await Bootstrap.initDomain(isar, drift, logDb, shouldBufferLogs: false, listenStoreUpdates: false);
-        final ref = ProviderContainer(
+        ref = ProviderContainer(
           overrides: [
-            // TODO: Remove once isar is removed
             dbProvider.overrideWithValue(isar),
             isarProvider.overrideWithValue(isar),
-            cancellationProvider.overrideWithValue(cancelledChecker),
+            cancellationProvider.overrideWithValue(() => isCancelled),
             driftProvider.overrideWith(driftOverride(drift)),
           ],
         );
 
-        Logger log = Logger("IsolateLogger");
+        HttpSSLOptions.apply(applyNative: false);
+        final result = await config.computation(ref!);
 
-        try {
-          HttpSSLOptions.apply(applyNative: false);
-          result = await computation(ref);
-        } on CanceledError {
-          log.warning("Computation cancelled ${debugLabel == null ? '' : ' for $debugLabel'}");
-        } catch (error, stack) {
-          log.severe("Error in runInIsolateGentle ${debugLabel == null ? '' : ' for $debugLabel'}", error, stack);
-        } finally {
-          try {
-            ref.dispose();
-
-            await Store.dispose();
-            await LogService.I.dispose();
-            await logDb.close();
-            await drift.close();
-
-            // Close Isar safely
-            try {
-              if (isar.isOpen) {
-                await isar.close();
-              }
-            } catch (e) {
-              dPrint(() => "Error closing Isar: $e");
-            }
-          } catch (error, stack) {
-            dPrint(() => "Error closing resources in isolate: $error, $stack");
-          } finally {
-            ref.dispose();
-            // Delay to ensure all resources are released
-            await Future.delayed(const Duration(seconds: 2));
-          }
+        if (!isCancelled) {
+          config.mainSendPort.send(_ResultMessage(result));
+        } else {
+          log.fine("Task completed but was cancelled - not sending result");
         }
       },
       (error, stack) {
-        dPrint(() => "Error in isolate $debugLabel zone: $error, $stack");
+        log.severe("Uncaught error in isolate zone", error, stack);
+        config.mainSendPort.send(_ErrorMessage(error, stack));
       },
     );
-    return result;
-  });
+  } catch (error, stack) {
+    log.severe("Error in isolate execution", error, stack);
+    config.mainSendPort.send(_ErrorMessage(error, stack));
+  } finally {
+    try {
+      receivePort.close();
+      unawaited(subscription.cancel());
+      await _cleanupResources(ref, isar, drift, logDb);
+    } catch (error, stack) {
+      dPrint(() => "Error during isolate cleanup: $error with stack: $stack");
+    } finally {
+      unawaited(subscription.cancel());
+      config.mainSendPort.send(const _DoneMessage());
+    }
+  }
+}
+
+CancellableTask<T> runInIsolateGentle<T>({
+  required Future<T> Function(ProviderContainer ref) computation,
+  String? debugLabel,
+}) {
+  final runner = _IsolateTaskRunner<T>(
+    debugLabel: debugLabel ?? 'isolate-task-${DateTime.now().millisecondsSinceEpoch}',
+  )..start(computation);
+
+  return CancellableTask<T>(future: runner.future, cancel: runner.cancel);
 }

mobile/lib/wm_executor.dart

@@ -1,251 +0,0 @@
-// part of 'package:worker_manager/worker_manager.dart';
-// ignore_for_file: implementation_imports, avoid_print
-
-import 'dart:async';
-import 'dart:math';
-
-import 'package:collection/collection.dart';
-import 'package:flutter/foundation.dart';
-import 'package:worker_manager/src/number_of_processors/processors_io.dart';
-import 'package:worker_manager/src/worker/worker.dart';
-import 'package:worker_manager/worker_manager.dart';
-
-final workerManagerPatch = _Executor();
-
-// [-2^54; 2^53] is compatible with dart2js, see core.int doc
-const _minId = -9007199254740992;
-const _maxId = 9007199254740992;
-
-class Mixinable<T> {
-  late final itSelf = this as T;
-}
-
-mixin _ExecutorLogger on Mixinable<_Executor> {
-  var log = false;
-
-  @mustCallSuper
-  void init() {
-    logMessage("${itSelf._isolatesCount} workers have been spawned and initialized");
-  }
-
-  void logTaskAdded<R>(String uid) {
-    logMessage("added task with number $uid");
-  }
-
-  @mustCallSuper
-  void dispose() {
-    logMessage("worker_manager have been disposed");
-  }
-
-  @mustCallSuper
-  void _cancel(Task task) {
-    logMessage("Task ${task.id} have been canceled");
-  }
-
-  void logMessage(String message) {
-    if (log) print(message);
-  }
-}
-
-class _Executor extends Mixinable<_Executor> with _ExecutorLogger {
-  final _queue = PriorityQueue<Task>();
-  final _pool = <Worker>[];
-  var _nextTaskId = _minId;
-  var _dynamicSpawning = false;
-  var _isolatesCount = numberOfProcessors;
-
-  @override
-  Future<void> init({int? isolatesCount, bool? dynamicSpawning}) async {
-    if (_pool.isNotEmpty) {
-      print("worker_manager already warmed up, init is ignored. Dispose before init");
-      return;
-    }
-    if (isolatesCount != null) {
-      if (isolatesCount < 0) {
-        throw Exception("isolatesCount must be greater than 0");
-      }
-
-      _isolatesCount = isolatesCount;
-    }
-    _dynamicSpawning = dynamicSpawning ?? false;
-    await _ensureWorkersInitialized();
-    super.init();
-  }
-
-  @override
-  Future<void> dispose() async {
-    _queue.clear();
-    for (final worker in _pool) {
-      worker.kill();
-    }
-    _pool.clear();
-    super.dispose();
-  }
-
-  Cancelable<R> execute<R>(Execute<R> execution, {WorkPriority priority = WorkPriority.immediately}) {
-    return _createCancelable<R>(execution: execution, priority: priority);
-  }
-
-  Cancelable<R> executeNow<R>(ExecuteGentle<R> execution) {
-    final task = TaskGentle<R>(
-      id: "",
-      workPriority: WorkPriority.immediately,
-      execution: execution,
-      completer: Completer<R>(),
-    );
-
-    Future<void> run() async {
-      try {
-        final result = await execution(() => task.canceled);
-        task.complete(result, null, null);
-      } catch (error, st) {
-        task.complete(null, error, st);
-      }
-    }
-
-    run();
-    return Cancelable(completer: task.completer, onCancel: () => _cancel(task));
-  }
-
-  Cancelable<R> executeWithPort<R, T>(
-    ExecuteWithPort<R> execution, {
-    WorkPriority priority = WorkPriority.immediately,
-    required void Function(T value) onMessage,
-  }) {
-    return _createCancelable<R>(
-      execution: execution,
-      priority: priority,
-      onMessage: (message) => onMessage(message as T),
-    );
-  }
-
-  Cancelable<R> executeGentle<R>(ExecuteGentle<R> execution, {WorkPriority priority = WorkPriority.immediately}) {
-    return _createCancelable<R>(execution: execution, priority: priority);
-  }
-
-  Cancelable<R> executeGentleWithPort<R, T>(
-    ExecuteGentleWithPort<R> execution, {
-    WorkPriority priority = WorkPriority.immediately,
-    required void Function(T value) onMessage,
-  }) {
-    return _createCancelable<R>(
-      execution: execution,
-      priority: priority,
-      onMessage: (message) => onMessage(message as T),
-    );
-  }
-
-  void _createWorkers() {
-    for (var i = 0; i < _isolatesCount; i++) {
-      _pool.add(Worker());
-    }
-  }
-
-  Future<void> _initializeWorkers() async {
-    await Future.wait(_pool.map((e) => e.initialize()));
-  }
-
-  Cancelable<R> _createCancelable<R>({
-    required Function execution,
-    WorkPriority priority = WorkPriority.immediately,
-    void Function(Object value)? onMessage,
-  }) {
-    if (_nextTaskId + 1 == _maxId) {
-      _nextTaskId = _minId;
-    }
-    final id = _nextTaskId.toString();
-    _nextTaskId++;
-    late final Task<R> task;
-    final completer = Completer<R>();
-    if (execution is Execute<R>) {
-      task = TaskRegular<R>(id: id, workPriority: priority, execution: execution, completer: completer);
-    } else if (execution is ExecuteWithPort<R>) {
-      task = TaskWithPort<R>(
-        id: id,
-        workPriority: priority,
-        execution: execution,
-        completer: completer,
-        onMessage: onMessage!,
-      );
-    } else if (execution is ExecuteGentle<R>) {
-      task = TaskGentle<R>(id: id, workPriority: priority, execution: execution, completer: completer);
-    } else if (execution is ExecuteGentleWithPort<R>) {
-      task = TaskGentleWithPort<R>(
-        id: id,
-        workPriority: priority,
-        execution: execution,
-        completer: completer,
-        onMessage: onMessage!,
-      );
-    }
-    _queue.add(task);
-    _schedule();
-    logTaskAdded(task.id);
-    return Cancelable(completer: task.completer, onCancel: () => _cancel(task));
-  }
-
-  Future<void> _ensureWorkersInitialized() async {
-    if (_pool.isEmpty) {
-      _createWorkers();
-      if (!_dynamicSpawning) {
-        await _initializeWorkers();
-        final poolSize = _pool.length;
-        final queueSize = _queue.length;
-        for (int i = 0; i <= min(poolSize, queueSize); i++) {
-          _schedule();
-        }
-      }
-    }
-    if (_pool.every((worker) => worker.taskId != null)) {
-      return;
-    }
-    if (_dynamicSpawning) {
-      final freeWorker = _pool.firstWhereOrNull(
-        (worker) => worker.taskId == null && !worker.initialized && !worker.initializing,
-      );
-      await freeWorker?.initialize();
-      _schedule();
-    }
-  }
-
-  void _schedule() {
-    final availableWorker = _pool.firstWhereOrNull((worker) => worker.taskId == null && worker.initialized);
-    if (availableWorker == null) {
-      _ensureWorkersInitialized();
-      return;
-    }
-    if (_queue.isEmpty) return;
-    final task = _queue.removeFirst();
-
-    availableWorker
-        .work(task)
-        .then(
-          (value) {
-            //could be completed already by cancel and it is normal.
-            //Assuming that worker finished with error and cleaned gracefully
-            task.complete(value, null, null);
-          },
-          onError: (error, st) {
-            task.complete(null, error, st);
-          },
-        )
-        .whenComplete(() {
-          if (_dynamicSpawning && _queue.isEmpty) availableWorker.kill();
-          _schedule();
-        });
-  }
-
-  @override
-  void _cancel(Task task) {
-    task.cancel();
-    _queue.remove(task);
-    final targetWorker = _pool.firstWhereOrNull((worker) => worker.taskId == task.id);
-    if (task is Gentle) {
-      targetWorker?.cancelGentle();
-    } else {
-      targetWorker?.kill();
-      if (!_dynamicSpawning) targetWorker?.initialize();
-    }
-    super._cancel(task);
-  }
-}

mobile/pubspec.lock

@@ -2154,14 +2154,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.0.3"
-  worker_manager:
-    dependency: "direct main"
-    description:
-      name: worker_manager
-      sha256: "1bce9f894a0c187856f5fc0e150e7fe1facce326f048ca6172947754dac3d4f3"
-      url: "https://pub.dev"
-    source: hosted
-    version: "7.2.7"
   xdg_directories:
     dependency: transitive
     description:

mobile/pubspec.yaml

@@ -85,7 +85,6 @@ dependencies:
   url_launcher: ^6.3.2
   uuid: ^4.5.1
   wakelock_plus: ^1.3.0
-  worker_manager: ^7.2.7
 
 dev_dependencies:
   auto_route_generator: ^9.0.0