Concurrency

Topics

Essentials

• Code-along: Elevating an app with Swift concurrency
• Updating an app to use strict concurrency
• Updating an App to Use Swift Concurrency

Tasks

• Task
• TaskGroup
• withTaskGroup(of:returning:isolation:body:)
• ThrowingTaskGroup
• withThrowingTaskGroup(of:returning:isolation:body:)
• TaskPriority
• DiscardingTaskGroup
• withDiscardingTaskGroup(returning:isolation:body:)
• ThrowingDiscardingTaskGroup
• withThrowingDiscardingTaskGroup(returning:isolation:body:)
• UnsafeCurrentTask

Asynchronous Sequences

• AsyncSequence
• AsyncStream
• AsyncThrowingStream

Continuations

• CheckedContinuation
• withCheckedContinuation(isolation:function:_:)
• withCheckedThrowingContinuation(isolation:function:_:)
• UnsafeContinuation
• withUnsafeContinuation(isolation:_:)
• UnsafeThrowingContinuation
• withUnsafeThrowingContinuation(isolation:_:)

Actors

• Sendable
• Actor
• AnyActor
• MainActor
• GlobalActor
• SendableMetatype
• ConcurrentValue
• UnsafeSendable
• UnsafeConcurrentValue
• isolation()
• extractIsolation(_:)

Task-Local Storage

• TaskLocal
• TaskLocal()

Executors

• Executor
• ExecutorJob
• SerialExecutor
• TaskExecutor
• PartialAsyncTask
• UnownedJob
• JobPriority
• UnownedSerialExecutor
• UnownedTaskExecutor
• globalConcurrentExecutor
• withTaskExecutorPreference(_:isolation:operation:)

Deprecated

• Job

See Also

Programming Tasks

• Input and Output
• Debugging and Reflection
• Macros
• Key-Path Expressions
• Manual Memory Management
• Type Casting and Existential Types
• C Interoperability
• Operator Declarations