# DispatchWorkItemFlags A set of behaviors for a work item, such as its quality-of-service class and whether to create a barrier or spawn a new detached thread. ``` struct DispatchWorkItemFlags ``` ## Topics ### Work Item Flags [`assignCurrentContext`](/documentation/Dispatch/DispatchWorkItemFlags/assignCurrentContext) Set the attributes of the work item to match the attributes of the current execution context. [`barrier`](/documentation/Dispatch/DispatchWorkItemFlags/barrier) Cause the work item to act as a barrier block when submitted to a concurrent queue. [`detached`](/documentation/Dispatch/DispatchWorkItemFlags/detached) Disassociate the work item’s attributes from the current execution context. [`enforceQoS`](/documentation/Dispatch/DispatchWorkItemFlags/enforceQoS) Prefer the quality-of-service class associated with the block. [`inheritQoS`](/documentation/Dispatch/DispatchWorkItemFlags/inheritQoS) Prefer the quality-of-service class associated with the current execution context. [`noQoS`](/documentation/Dispatch/DispatchWorkItemFlags/noQoS) Execute the work item without assigning a quality-of-service class. ### Initializing the Type ### Expressing the Type ### Managing the Type ### Comparing Types ## Relationships ### Conforms To [`SetAlgebra`](/documentation/Swift/SetAlgebra) [`OptionSet`](/documentation/Swift/OptionSet) [`RawRepresentable`](/documentation/Swift/RawRepresentable) [`ExpressibleByArrayLiteral`](/documentation/Swift/ExpressibleByArrayLiteral) [`Sendable`](/documentation/Swift/Sendable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Equatable`](/documentation/Swift/Equatable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)