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  "title" : "CFSocket Flags"
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# CFSocket Flags

Flags that can be set on a CFSocket object to control its behavior.

## Discussion

The flags for a CFSocket object are set with [`CFSocketSetSocketFlags(_:_:)`](/documentation/CoreFoundation/CFSocketSetSocketFlags(_:_:)). To immediately enable or disable a callback, use [`CFSocketEnableCallBacks(_:_:)`](/documentation/CoreFoundation/CFSocketEnableCallBacks(_:_:)) and [`CFSocketDisableCallBacks(_:_:)`](/documentation/CoreFoundation/CFSocketDisableCallBacks(_:_:)).

## Topics

### Constants

[`var kCFSocketAutomaticallyReenableReadCallBack: CFOptionFlags`](/documentation/CoreFoundation/kCFSocketAutomaticallyReenableReadCallBack)

[`var kCFSocketAutomaticallyReenableAcceptCallBack: CFOptionFlags`](/documentation/CoreFoundation/kCFSocketAutomaticallyReenableAcceptCallBack)

[`var kCFSocketAutomaticallyReenableDataCallBack: CFOptionFlags`](/documentation/CoreFoundation/kCFSocketAutomaticallyReenableDataCallBack)

[`var kCFSocketAutomaticallyReenableWriteCallBack: CFOptionFlags`](/documentation/CoreFoundation/kCFSocketAutomaticallyReenableWriteCallBack)

[`var kCFSocketLeaveErrors: CFOptionFlags`](/documentation/CoreFoundation/kCFSocketLeaveErrors)

[`var kCFSocketCloseOnInvalidate: CFOptionFlags`](/documentation/CoreFoundation/kCFSocketCloseOnInvalidate)

When enabled using [`CFSocketSetSocketFlags(_:_:)`](/documentation/CoreFoundation/CFSocketSetSocketFlags(_:_:)), the native socket associated with a CFSocket object is closed when the CFSocket object is invalidated. When disabled, the native socket remains open. This option is enabled by default.


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