Merge branch 'main' into interface-abstraction

packages/sane/example/main.dart

@@ -5,7 +5,7 @@ import 'dart:typed_data';
 
 import 'package:logging/logging.dart';
 import 'package:sane/sane.dart';
-import 'package:sane/src/impl/sane_dev.dart';
+import 'package:sane/src/impl/sane_mock.dart';
 import 'package:sane/src/impl/sane_native.dart';
 
 void main(List<String> args) async {
@@ -79,4 +79,6 @@ void main(List<String> args) async {
   );
   final rawPixelData = mergeUint8Lists(rawPixelDataList);
   file.writeAsBytesSync(rawPixelData, mode: FileMode.append);
+
+  await sane.dispose();
 }

packages/sane/lib/src/extensions.dart

@@ -1,3 +1,4 @@
+import 'package:logging/logging.dart';
 import 'package:meta/meta.dart';
 import 'package:sane/src/bindings.g.dart';
 import 'package:sane/src/exceptions.dart';
@@ -12,3 +13,16 @@ extension SaneStatusExtension on SANE_Status {
     }
   }
 }
+
+@internal
+extension LoggerExtension on Logger {
+  void redirect(LogRecord record) {
+    log(
+      record.level,
+      record.message,
+      record.error,
+      record.stackTrace,
+      record.zone,
+    );
+  }
+}

packages/sane/lib/src/impl/sane_dev.dart → packages/sane/lib/src/impl/sane_mock.dart

@@ -4,7 +4,7 @@ import 'dart:typed_data';
 import 'package:logging/logging.dart';
 import 'package:sane/sane.dart';
 
-final _logger = Logger('sane.dev');
+final _logger = Logger('sane.mock');
 
 class MockSane implements Sane {
   @override

packages/sane/lib/src/impl/sane_native.dart

@@ -66,7 +66,7 @@ class NativeSane implements Sane {
   SaneIsolate? _isolate;
 
   Future<SaneIsolate> _getIsolate() async {
-    if (_isolate?.exited == true || _disposed) throw SaneDisposedError();
+    if (_disposed) throw SaneDisposedError();
     return _isolate ??= await SaneIsolate.spawn(backingSane);
   }
 
@@ -81,17 +81,18 @@ class NativeSane implements Sane {
   Future<void> dispose({bool force = false}) async {
     final isolate = _isolate;
 
-    if (force) {
-      isolate?.kill();
-      return;
-    }
-
     if (_disposed) return;
 
     _disposed = true;
     _instance = null;
 
-    await isolate?.sendMessage(ExitMessage());
+    if (isolate == null) return;
+
+    if (force) {
+      isolate.kill();
+    } else {
+      await isolate.sendMessage(ExitMessage());
+    }
 
     _isolate = null;
   }

packages/sane/lib/src/impl/sane_sync.dart

@@ -393,7 +393,8 @@ class SyncSaneDevice implements SaneDevice, ffi.Finalizable {
   SaneOptionResult<bool> controlBoolOption(
     int index,
     SaneAction action,
-    bool? value,) {
+    bool? value,
+  ) {
     return _controlOption<bool>(
       index: index,
       action: action,
@@ -405,7 +406,8 @@ class SyncSaneDevice implements SaneDevice, ffi.Finalizable {
   SaneOptionResult<int> controlIntOption(
     int index,
     SaneAction action,
-    int? value,) {
+    int? value,
+  ) {
     return _controlOption<int>(
       index: index,
       action: action,
@@ -417,7 +419,8 @@ class SyncSaneDevice implements SaneDevice, ffi.Finalizable {
   SaneOptionResult<double> controlFixedOption(
     int index,
     SaneAction action,
-    double? value,) {
+    double? value,
+  ) {
     return _controlOption<double>(
       index: index,
       action: action,
@@ -429,7 +432,8 @@ class SyncSaneDevice implements SaneDevice, ffi.Finalizable {
   SaneOptionResult<String> controlStringOption(
     int index,
     SaneAction action,
-    String? value,) {
+    String? value,
+  ) {
     return _controlOption<String>(
       index: index,
       action: action,

packages/sane/lib/src/isolate.dart

@@ -1,49 +1,53 @@
 import 'dart:async';
 import 'dart:isolate';
 
+import 'package:logging/logging.dart';
+import 'package:meta/meta.dart';
 import 'package:sane/src/exceptions.dart';
+import 'package:sane/src/extensions.dart';
 import 'package:sane/src/isolate_messages/exception.dart';
+import 'package:sane/src/isolate_messages/exit.dart';
 import 'package:sane/src/isolate_messages/interface.dart';
 import 'package:sane/src/sane.dart';
 
+final _logger = Logger('sane.isolate');
+
+@internal
 class SaneIsolate {
   SaneIsolate._(
     this._isolate,
-    this._sendPort,
-    this._exitReceivePort,
-  ) : _exited = false {
-    _exitReceivePort.listen((message) {
-      assert(message == null);
-      _exited = true;
-    });
-  }
+    this._sendPort,);
 
   final Isolate _isolate;
   final SendPort _sendPort;
-  final ReceivePort _exitReceivePort;
-
-  bool _exited;
-
-  bool get exited => _exited;
 
   static Future<SaneIsolate> spawn(Sane sane) async {
     final receivePort = ReceivePort();
-    final exitReceivePort = ReceivePort();
 
     final isolate = await Isolate.spawn(
       _entryPoint,
       (receivePort.sendPort, sane),
-      onExit: exitReceivePort.sendPort,
+      onExit: receivePort.sendPort,
     );
 
-    final sendPort = await receivePort.first as SendPort;
-    return SaneIsolate._(isolate, sendPort, exitReceivePort);
-  }
+    final sendPortCompleter = Completer<SendPort>();
+    receivePort.listen((message) {
+      switch (message) {
+        case SendPort():
+          sendPortCompleter.complete(message);
+        case LogRecord():
+          _logger.redirect(message);
+        case null:
+          receivePort.close();
+      }
+    });
 
-  void kill() {
-    _isolate.kill(priority: Isolate.immediate);
+    final sendPort = await sendPortCompleter.future;
+    return SaneIsolate._(isolate, sendPort);
   }
 
+  void kill() => _isolate.kill(priority: Isolate.immediate);
+
   Future<T> sendMessage<T extends IsolateResponse>(
     IsolateMessage<T> message,
   ) async {
@@ -75,10 +79,16 @@ typedef _EntryPointArgs = (SendPort sendPort, Sane sane);
 void _entryPoint(_EntryPointArgs args) {
   final (sendPort, sane) = args;
 
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.forEach(sendPort.send);
+
   final receivePort = ReceivePort();
   sendPort.send(receivePort.sendPort);
 
-  receivePort.cast<_IsolateMessageEnvelope>().listen((envelope) async {
+  late StreamSubscription<_IsolateMessageEnvelope> subscription;
+
+  subscription =
+      receivePort.cast<_IsolateMessageEnvelope>().listen((envelope) async {
     final _IsolateMessageEnvelope(:message, :replyPort) = envelope;
 
     IsolateResponse response;
@@ -93,6 +103,10 @@ void _entryPoint(_EntryPointArgs args) {
     }
 
     replyPort.send(response);
+
+    if (message is ExitMessage) {
+      await subscription.cancel();
+    }
   });
 }
 
@@ -108,8 +122,10 @@ class _IsolateMessageEnvelope {
 
 late Map<String, SaneDevice> _devices;
 
+@internal
 SaneDevice getDevice(String name) => _devices[name]!;
 
+@internal
 void setDevices(Iterable<SaneDevice> devices) {
   _devices = {
     for (final device in devices) device.name: device,

packages/sane/lib/src/isolate_messages/get_devices.dart

@@ -1,3 +1,4 @@
+import 'package:sane/src/isolate.dart';
 import 'package:sane/src/isolate_messages/interface.dart';
 import 'package:sane/src/sane.dart';
 
@@ -8,14 +9,14 @@ class GetDevicesMessage implements IsolateMessage<GetDevicesResponse> {
 
   @override
   Future<GetDevicesResponse> handle(Sane sane) async {
-    return GetDevicesResponse(
-      devices: await sane.getDevices(localOnly: localOnly),
-    );
+    final devices = await sane.getDevices(localOnly: localOnly);
+    setDevices(devices);
+    return GetDevicesResponse(devices);
   }
 }
 
 class GetDevicesResponse implements IsolateResponse {
-  GetDevicesResponse({required this.devices});
+  GetDevicesResponse(this.devices);
 
   final List<SaneDevice> devices;
 }

packages/sane/lib/src/sane.dart

@@ -3,7 +3,7 @@ import 'dart:typed_data';
 
 import 'package:meta/meta.dart';
 import 'package:sane/sane.dart';
-import 'package:sane/src/impl/sane_dev.dart';
+import 'package:sane/src/impl/sane_mock.dart';
 import 'package:sane/src/impl/sane_native.dart';
 import 'package:sane/src/impl/sane_sync.dart';
 
@@ -15,7 +15,7 @@ abstract interface class Sane {
   /// See also:
   ///
   /// - [Sane.sync]
-  factory Sane() => NativeSane();
+  factory Sane([Sane? backingSane]) => NativeSane(backingSane);
 
   /// Instantiates a new synchronous SANE instance.
   factory Sane.sync() => SyncSane();

packages/sane/test/sane_singleton_test.dart

@@ -1,9 +1,18 @@
+import 'package:logging/logging.dart';
 import 'package:sane/sane.dart';
 import 'package:test/test.dart';
 
 void main() {
   late Sane sane;
 
+  setUp(() {
+    Logger.root.level = Level.ALL;
+    Logger.root.onRecord.listen((record) {
+      // ignore: avoid_print
+      print('${record.level.name}: ${record.time}: ${record.message}');
+    });
+  });
+
   test('can instantiate', () {
     sane = Sane();
   });
@@ -25,7 +34,7 @@ void main() {
   });
 
   test('can reinstiate with new instance', () {
-    final newSane = Sane();
+    final newSane = Sane(Sane.mock());
     expect(sane, isNot(newSane));
     sane = newSane;
   });