updates

cw_bitcoin/lib/litecoin_wallet.dart

@@ -87,7 +87,6 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
   final bitcoin.HDWallet mwebHd;
   late final Box<MwebUtxo> mwebUtxosBox;
   Timer? _syncTimer;
-  // late int lastMwebUtxosHeight;
   int mwebUtxosHeight = 0;
   late RpcClient _stub;
 
@@ -156,6 +155,7 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
   @override
   Future<void> startSync() async {
     await super.startSync();
+    _stub = await CwMweb.stub();
     _syncTimer?.cancel();
     _syncTimer = Timer.periodic(const Duration(milliseconds: 1500), (timer) async {
       if (syncStatus is FailedSyncStatus) return;
@@ -197,6 +197,13 @@ abstract class LitecoinWalletBase extends ElectrumWallet with Store {
     processMwebUtxos();
   }
 
+  @action
+  @override
+  Future<void> stopSync() async {
+    _syncTimer?.cancel();
+    await CwMweb.stop();
+  }
+
   Future<void> initMwebUtxosBox() async {
     final boxName = "${walletInfo.name.replaceAll(" ", "_")}_${MwebUtxo.boxName}";
 

cw_core/lib/wallet_base.dart

@@ -65,11 +65,12 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   Future<void> startSync();
 
+  Future<void> stopSync() async {}
+
   Future<PendingTransaction> createTransaction(Object credentials);
 
   int calculateEstimatedFee(TransactionPriority priority, int? amount);
 
-
   // void fetchTransactionsAsync(
   //     void Function(TransactionType transaction) onTransactionLoaded,
   //     {void Function() onFinished});
@@ -90,7 +91,8 @@ abstract class WalletBase<BalanceType extends Balance, HistoryType extends Trans
 
   Future<void> renameWalletFiles(String newWalletName);
 
-  Future<String> signMessage(String message, {String? address = null}) => throw UnimplementedError();
+  Future<String> signMessage(String message, {String? address = null}) =>
+      throw UnimplementedError();
 
   bool? isTestnet;
 }

cw_mweb/ios/Classes/CwMwebPlugin.swift

@@ -21,13 +21,21 @@ public class CwMwebPlugin: NSObject, FlutterPlugin {
         //   print("args: \(args)")
           let dataDir = args?["dataDir"]
           var error: NSError?
+
+          if dataDir == "stop" && CwMwebPlugin.server != nil {
+              print("Stopping server")
+              CwMwebPlugin.server?.stop()
+              CwMwebPlugin.server = nil
+              result(0)
+              return
+          }
           
           if CwMwebPlugin.server == nil {
               CwMwebPlugin.server = MwebdNewServer("", dataDir, "", &error)
               
               if let server = CwMwebPlugin.server {
                   do {
-                      print("starting server2 \(CwMwebPlugin.port)")
+                      print("starting server \(CwMwebPlugin.port)")
                       try server.start(0, ret0_: &CwMwebPlugin.port)
                       result(CwMwebPlugin.port)
                   } catch let startError as NSError {

cw_mweb/lib/cw_mweb.dart

@@ -6,9 +6,21 @@ import 'mwebd.pbgrpc.dart';
 class CwMweb {
   static Future<RpcClient> stub() async {
     final appDir = await getApplicationSupportDirectory();
-    return RpcClient(ClientChannel('127.0.0.1',
-      port: await CwMwebPlatform.instance.start(appDir.path) ?? 0,
-      options: const ChannelOptions(
-        credentials: ChannelCredentials.insecure())));
+    int port = await CwMwebPlatform.instance.start(appDir.path) ?? 0;
+    return RpcClient(
+      ClientChannel('127.0.0.1',
+          port: port,
+          options: const ChannelOptions(
+            credentials: ChannelCredentials.insecure(),
+            keepAlive: ClientKeepAliveOptions(permitWithoutCalls: true),
+          ), channelShutdownHandler: () {
+        print("CHANNEL IS BEING SHUT DOWN");
+        // CwMwebPlatform.instance.stop();
+      }),
+    );
+  }
+
+  static Future<void> stop() async {
+    await CwMwebPlatform.instance.start("stop");
   }
 }

ios/Runner/AppDelegate.swift

@@ -143,12 +143,4 @@ import workmanager
         }
     }
 
-    override func applicationDidBecomeActive(_ application: UIApplication) {
-        signal(SIGPIPE, SIG_IGN);
-    }
-    
-    override func applicationWillEnterForeground(_ application: UIApplication) {
-        signal(SIGPIPE, SIG_IGN);
-    }
-
 }

lib/src/screens/root/root.dart

@@ -4,6 +4,7 @@ import 'package:cake_wallet/core/totp_request_details.dart';
 import 'package:cake_wallet/utils/device_info.dart';
 import 'package:cake_wallet/view_model/link_view_model.dart';
 import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_type.dart';
 import 'package:flutter/material.dart';
 import 'package:cake_wallet/routes.dart';
 import 'package:cake_wallet/src/screens/auth/auth_page.dart';
@@ -133,6 +134,10 @@ class RootState extends State<Root> with WidgetsBindingObserver {
           setState(() => _setInactive(true));
         }
 
+        if (widget.appStore.wallet?.type == WalletType.litecoin) {
+          widget.appStore.wallet?.stopSync();
+        }
+
         break;
       case AppLifecycleState.resumed:
         widget.authService.requireAuth().then((value) {
@@ -142,6 +147,9 @@ class RootState extends State<Root> with WidgetsBindingObserver {
             });
           }
         });
+        if (widget.appStore.wallet?.type == WalletType.litecoin) {
+          widget.appStore.wallet?.startSync();
+        }
         break;
       default:
         break;