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lib/services/clash/async_ffi.dart

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+import 'dart:convert';
+import 'dart:ffi';
+import 'dart:isolate';
+
+import 'package:hiddify/services/clash/async_ffi_response.dart';
+import 'package:hiddify/utils/utils.dart';
+
+// TODO: add timeout
+// TODO: test and improve
+mixin AsyncFFI implements LoggerMixin {
+  Future<AsyncFfiResponse> runAsync(void Function(int port) run) async {
+    final receivePort = ReceivePort();
+    final responseFuture = receivePort.map(
+      (event) {
+        if (event is String) {
+          receivePort.close();
+          return AsyncFfiResponse.fromJson(
+            jsonDecode(event) as Map<String, dynamic>,
+          );
+        }
+        receivePort.close();
+        throw Exception("unexpected data type[${event.runtimeType}]");
+      },
+    ).first;
+    run(receivePort.sendPort.nativePort);
+    return responseFuture;
+  }
+}