Dart Windows Service ⚙

use service mode running dart to windows

service_base from https://github.com/tromgy/service-base provides windows api => lib

in WindowsServiceDLL

WindowsServiceDLL Import the api in lib and package the API => dll

dart_windows_service_support use dart:ffi access dll api

Example

example global var

final dllPath = normalize(join(dirname(Platform.script.toFilePath()), "../../../dll/WindowsServiceDLL64.dll"));
const serviceName = "dart_test_service";

DartConnectServiceDLL.dartInstallService install service

void main(List<String> args) {
  final dartConnectServiceDLL = DartConnectServiceDLL(dllPath);
  final servicePath = join(Directory.current.path, "service.exe");

  dartConnectServiceDLL.dartInstallService(
    serviceName.toNativeUtf16().cast<Uint16>(),
    serviceName.toNativeUtf16().cast<Uint16>(),
    "this is a dart test service".toNativeUtf16().cast<Uint16>(),
    "".toNativeUtf16().cast<Uint16>(),
    0x2,
    "".toNativeUtf16().cast<Uint16>(),
    Pointer.fromAddress(0),
    Pointer.fromAddress(0),

    /// path
    servicePath.toNativeUtf16().cast<Uint16>(),
    1,
    1,
    Pointer.fromAddress(0),
    1
  );
}

DartConnectServiceDLL.dartConnectService connect service

void main(List<String> args) async {
  final dartConnectServiceDLL = DartConnectServiceDLL(dllPath);
  await Isolate.spawn(run, 'message');
  dartConnectServiceDLL.dartConnectService(serviceName.toNativeUtf16().cast<Uint16>());
}

void run(String message) {
  Timer.periodic(Duration(seconds: 1), (timer) async {
    final f = File("d:/a.txt");
    await f.create();
    await f.writeAsString("${await f.readAsString()}1");
  });
}

DartConnectServiceDLL.dartUninstallService uninstall service

void main(List<String> args) {
  final dartConnectServiceDLL = DartConnectServiceDLL(dllPath);
  dartConnectServiceDLL.dartUninstallService(serviceName.toNativeUtf16().cast<Uint16>());
}

See dart_windows_service_support/example

Make dll WindowsServiceDLL.dll

use VS2022 open project windows_platform\WindowsServiceDLL make out WindowsServiceDLL.dll

Complete the compilation of dll

Note that the x86/x64 options for dll and lib compilation should be unified

Other

Inspired by

https://stackoverflow.com/questions/21056419/how-do-you-run-a-dart-application-as-a-windows-service/63744433#63744433