---
title: socketIsConnected
framework: system
role: symbol
role_heading: Type Property
path: system/errno/socketisconnected
---

# socketIsConnected

Socket is already connected.

## Declaration

```swift
static var socketIsConnected: Errno { get }
```

## Mentioned in

Adopting Swift Error Constants

## Discussion

Discussion A connect(2) or connectx(2) request was made on an already connected socket, or a sendto(2) or sendmsg(2) request was made on a connected socket specified a destination when already connected. The corresponding C error is EISCONN.

## See Also

### Network Socket Errors

- [notSocket](system/errno/notsocket.md)
- [notSupportedOnSocket](system/errno/notsupportedonsocket.md)
- [socketNotConnected](system/errno/socketnotconnected.md)
- [socketShutdown](system/errno/socketshutdown.md)
- [socketTypeNotSupported](system/errno/sockettypenotsupported.md)