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# DispatchSource.MemoryPressureEvent

Memory pressure events.

```
struct MemoryPressureEvent
```

## Topics

### Memory Pressure Event Flags

[`all`](/documentation/Dispatch/DispatchSource/MemoryPressureEvent/all)

All memory pressure events.

[`normal`](/documentation/Dispatch/DispatchSource/MemoryPressureEvent/normal)

An event indicating that the system memory pressure condition changed to normal.

[`warning`](/documentation/Dispatch/DispatchSource/MemoryPressureEvent/warning)

An event indicating that the system memory pressure condition changed to warning.

[`critical`](/documentation/Dispatch/DispatchSource/MemoryPressureEvent/critical)

An event indicating that the system memory pressure condition changed to critical.

### Initializing the Type

### Expressing the Type

### Managing the Type

### Comparing Types


---

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