---
title: Mach
framework: System
role: symbol
role_heading: Enumeration
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
---

# Mach

## Declaration

```swift
@frozen enum Mach
```

## Topics

### Structures

- [Mach.Port](system/mach/port.md)
- [Mach.ReceiveRight](system/mach/receiveright.md)
- [Mach.SendOnceRight](system/mach/sendonceright.md)
- [Mach.SendRight](system/mach/sendright.md)

### Enumerations

- [Mach.PortRightError](system/mach/portrighterror.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Copyable](swift/copyable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)