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# dispatch_autorelease_frequency_t

Constants indicating the frequency with which a dispatch queue creates autorelease pools for its tasks.

```
typedef enum { ... } dispatch_autorelease_frequency_t;
```

## Topics

### Autorelease Frequency Options

[`DISPATCH_AUTORELEASE_FREQUENCY_INHERIT`](/documentation/Dispatch/dispatch_autorelease_frequency_t/DISPATCH_AUTORELEASE_FREQUENCY_INHERIT)

The queue inherits its autorelease frequency from its target queue.

[`DISPATCH_AUTORELEASE_FREQUENCY_WORK_ITEM`](/documentation/Dispatch/dispatch_autorelease_frequency_t/DISPATCH_AUTORELEASE_FREQUENCY_WORK_ITEM)

The queue configures an autorelease pool before the execution of a block and releases the objects in that pool after the block finishes executing.

[`DISPATCH_AUTORELEASE_FREQUENCY_NEVER`](/documentation/Dispatch/dispatch_autorelease_frequency_t/DISPATCH_AUTORELEASE_FREQUENCY_NEVER)

The queue does not set up an autorelease pool around executed blocks.


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