---
title: "CFNetServiceUnscheduleFromRunLoop(_:_:_:)"
framework: cfnetwork
role: symbol
role_heading: Function
path: "cfnetwork/cfnetserviceunschedulefromrunloop(_:_:_:)"
---

# CFNetServiceUnscheduleFromRunLoop(_:_:_:)

Unschedules a CFNetService from a run loop.

## Declaration

```swift
func CFNetServiceUnscheduleFromRunLoop(_ theService: CFNetService, _ runLoop: CFRunLoop, _ runLoopMode: CFString)
```

## Parameters

- `theService`: The CFNetService that is to be unscheduled; cannot be NULL.
- `runLoop`: The run loop; cannot be NULL.
- `runLoopMode`: The mode from which the service is to be unscheduled; cannot be NULL.

## Discussion

Discussion Unschedules the specified service from the specified run loop and mode. Call this function to shut down a service that is running asynchronously. To complete the shutdown, call CFNetServiceSetClient(_:_:_:) and set clientCB to NULL. Then call CFNetServiceCancel(_:). Special Considerations This function is thread safe.

## See Also

### Network Services

- [CFNetService](cfnetwork/cfnetservice.md)
- [CFNetServiceBrowser](cfnetwork/cfnetservicebrowser.md)
- [CFNetServiceBrowserFlags](cfnetwork/cfnetservicebrowserflags.md)
- [CFNetServiceMonitor](cfnetwork/cfnetservicemonitor.md)
- [CFNetServiceMonitorType](cfnetwork/cfnetservicemonitortype.md)
- [CFNetServiceClientContext](cfnetwork/cfnetserviceclientcontext.md)
- [CFNetServiceRegisterFlags](cfnetwork/cfnetserviceregisterflags.md)
- [CFNetServicesError](cfnetwork/cfnetserviceserror.md)
- [CFNetServiceBrowserInvalidate(_:)](cfnetwork/cfnetservicebrowserinvalidate(_:).md)
- [CFNetServiceBrowserScheduleWithRunLoop(_:_:_:)](cfnetwork/cfnetservicebrowserschedulewithrunloop(_:_:_:).md)
- [CFNetServiceBrowserCreate(_:_:_:)](cfnetwork/cfnetservicebrowsercreate(_:_:_:).md)
- [CFNetServiceBrowserGetTypeID()](cfnetwork/cfnetservicebrowsergettypeid().md)
- [CFNetServiceBrowserSearchForDomains(_:_:_:)](cfnetwork/cfnetservicebrowsersearchfordomains(_:_:_:).md)
- [CFNetServiceBrowserSearchForServices(_:_:_:_:)](cfnetwork/cfnetservicebrowsersearchforservices(_:_:_:_:).md)
- [CFNetServiceBrowserStopSearch(_:_:)](cfnetwork/cfnetservicebrowserstopsearch(_:_:).md)