---
title: "init(name:)"
framework: System
role: symbol
role_heading: Initializer
platforms: [iOS 17.4+, iPadOS 17.4+, Mac Catalyst 17.4+, macOS 14.4+, tvOS 17.4+, visionOS 1.0+, watchOS 10.4+]
path: "system/mach/port/init(name:)"
---

# init(name:)

Transfer ownership of an existing unmanaged Mach port right into a Mach.Port by name.

## Declaration

```swift
init(name: mach_port_name_t)
```

## Discussion

Discussion This initializer traps if name is MACH_PORT_NULL, or if name is MACH_PORT_DEAD and the RightType is Mach.ReceiveRight. If the type of the right does not match the RightType of the Mach.Port being constructed, behavior is undefined. The underlying port right will be automatically deallocated at the end of the Mach.Port instance’s lifetime. This initializer makes a syscall to guard the right.