---
title: kCFStreamPropertySocketExtendedBackgroundIdleMode
framework: cfnetwork
role: symbol
role_heading: Global Variable
path: cfnetwork/kcfstreampropertysocketextendedbackgroundidlemode
---

# kCFStreamPropertySocketExtendedBackgroundIdleMode

A Boolean value to request that the system keep a socket open and delays reclaiming it when the process moves to the background.

## Declaration

```swift
let kCFStreamPropertySocketExtendedBackgroundIdleMode: CFString
```

## Discussion

Discussion important: Set this property before opening the stream.

## See Also

### Streams

- [CFReadStreamCreateForHTTPRequest(_:_:)](cfnetwork/cfreadstreamcreateforhttprequest(_:_:).md)
- [CFReadStreamCreateForStreamedHTTPRequest(_:_:_:)](cfnetwork/cfreadstreamcreateforstreamedhttprequest(_:_:_:).md)
- [kCFStreamPropertyHTTPAttemptPersistentConnection](cfnetwork/kcfstreampropertyhttpattemptpersistentconnection.md)
- [kCFStreamPropertyHTTPFinalRequest](cfnetwork/kcfstreampropertyhttpfinalrequest.md)
- [kCFStreamPropertyHTTPFinalURL](cfnetwork/kcfstreampropertyhttpfinalurl.md)
- [kCFStreamPropertyHTTPProxy](cfnetwork/kcfstreampropertyhttpproxy.md)
- [kCFStreamPropertyHTTPProxyHost](cfnetwork/kcfstreampropertyhttpproxyhost.md)
- [kCFStreamPropertyHTTPProxyPort](cfnetwork/kcfstreampropertyhttpproxyport.md)
- [kCFStreamPropertyHTTPRequestBytesWrittenCount](cfnetwork/kcfstreampropertyhttprequestbyteswrittencount.md)
- [kCFStreamPropertyHTTPResponseHeader](cfnetwork/kcfstreampropertyhttpresponseheader.md)
- [kCFStreamPropertyHTTPSProxyHost](cfnetwork/kcfstreampropertyhttpsproxyhost.md)
- [kCFStreamPropertyHTTPSProxyPort](cfnetwork/kcfstreampropertyhttpsproxyport.md)
- [kCFStreamPropertyHTTPShouldAutoredirect](cfnetwork/kcfstreampropertyhttpshouldautoredirect.md)
- [CFWriteStreamCreateWithFTPURL(_:_:)](cfnetwork/cfwritestreamcreatewithftpurl(_:_:).md)
- [CFReadStreamCreateWithFTPURL(_:_:)](cfnetwork/cfreadstreamcreatewithftpurl(_:_:).md)