---
title: IOServiceStateNotificationDispatchSource
framework: Kernel
role: symbol
role_heading: Class
platforms: [driverkit 21.0+, macOS 12.0+]
path: kernel/ioservicestatenotificationdispatchsource
---

# IOServiceStateNotificationDispatchSource

## Declaration

```occ
class IOServiceStateNotificationDispatchSource : IODispatchSource
```

```occ
class IOServiceStateNotificationDispatchSource : IODispatchSource, IOServiceStateNotificationDispatchSourceInterface
```

## Topics

### Instance Methods

- [Cancel](driverkit/ioservicestatenotificationdispatchsource/cancel.md)
- [Cancel_Impl](kernel/ioservicestatenotificationdispatchsource/3753350-cancel_impl.md)
- [Dispatch](kernel/ioservicestatenotificationdispatchsource/3753355-dispatch.md)
- [SetEnableWithCompletion](driverkit/ioservicestatenotificationdispatchsource/setenablewithcompletion.md)
- [SetEnableWithCompletion_Impl](kernel/ioservicestatenotificationdispatchsource/3753356-setenablewithcompletion_impl.md)
- [SetHandler](kernel/ioservicestatenotificationdispatchsource/3753357-sethandler.md)
- [SetHandler](driverkit/ioservicestatenotificationdispatchsource/sethandler.md)
- [SetHandler_Impl](kernel/ioservicestatenotificationdispatchsource/3753358-sethandler_impl.md)
- [StateNotificationBegin](kernel/ioservicestatenotificationdispatchsource/3753360-statenotificationbegin.md)
- [StateNotificationBegin](driverkit/ioservicestatenotificationdispatchsource/statenotificationbegin.md)
- [StateNotificationBegin_Impl](kernel/ioservicestatenotificationdispatchsource/3753361-statenotificationbegin_impl.md)
- [StateNotificationReady](kernel/ioservicestatenotificationdispatchsource/3753363-statenotificationready.md)
- [StateNotificationReady](driverkit/ioservicestatenotificationdispatchsource/statenotificationready.md)
- [free](kernel/ioservicestatenotificationdispatchsource/3753366-free.md)
- [getMetaClass](kernel/ioservicestatenotificationdispatchsource/3753367-getmetaclass.md)
- [init](kernel/ioservicestatenotificationdispatchsource/3753368-init.md)

### Type Methods

- [Create](kernel/ioservicestatenotificationdispatchsource/3753351-create.md)
- [Create_Call](kernel/ioservicestatenotificationdispatchsource/3753352-create_call.md)
- [Create_Impl](kernel/ioservicestatenotificationdispatchsource/3753353-create_impl.md)
- [Create_Invoke](kernel/ioservicestatenotificationdispatchsource/3753354-create_invoke.md)
- [SetHandler_Invoke](kernel/ioservicestatenotificationdispatchsource/3753359-sethandler_invoke.md)
- [StateNotificationBegin_Invoke](kernel/ioservicestatenotificationdispatchsource/3753362-statenotificationbegin_invoke.md)
- [StateNotificationReady_Invoke](kernel/ioservicestatenotificationdispatchsource/4519998-statenotificationready_invoke.md)
- [StateNotificationReady_Invoke](kernel/ioservicestatenotificationdispatchsource/4519999-statenotificationready_invoke.md)

## Relationships

### Inherits From

- [IODispatchSource](driverkit/iodispatchsource.md)
- [IODispatchSource](kernel/iodispatchsource.md)
- [IOServiceStateNotificationDispatchSourceInterface](kernel/ioservicestatenotificationdispatchsourceinterface.md)