FSharp.Control | FSharp.Core

FSharp.Core

FSharp.Control Namespace

Library functionality for asynchronous programming, events and agents. See also Asynchronous Programming, Events and Lazy Expressions in the F# Language Guide.

Contents

Async Programming
Events and Observables
Lazy Computation
Agents
Async Internals
Other namespace members

Async Programming

Type/Module	Description
Async	Holds static members for creating and manipulating asynchronous computations.
Async<'T>	An asynchronous computation, which, when run, will eventually produce a value of type T, or else raises an exception.
AsyncBuilder	The type of the `async` operator, used to build workflows for asynchronous computations.
CommonExtensions	A module of extension members providing asynchronous operations for some basic CLI types related to concurrency and I/O.
WebExtensions	A module of extension members providing asynchronous operations for some basic Web operations.

Events and Observables

Type/Module	Description
DelegateEvent<'Delegate>	Event implementations for an arbitrary type of delegate.
Event	Contains operations for working with values of type IEvent.
Event<'T>	Event implementations for the IEvent<_> type.
Event<'Delegate, 'Args>	Event implementations for a delegate types following the standard .NET Framework convention of a first 'sender' argument.
Handler<'T>	A delegate type associated with the F# event type `IEvent<_>`
IDelegateEvent<'Delegate>	First class event values for arbitrary delegate types.
IEvent<'T>	First-class listening points (i.e. objects that permit you to register a callback activated when the event is triggered).
IEvent<'Delegate, 'Args>	First class event values for CLI events conforming to CLI Framework standards.
Observable	Contains operations for working with first class event and other observable objects.

Lazy Computation

Modules	Description
LazyExtensions	Extensions related to Lazy values.

Agents

Type	Description
AsyncReplyChannel<'Reply>	A handle to a capability to reply to a PostAndReply message.
MailboxProcessor<'Msg>	A message-processing agent which executes an asynchronous computation.

Async Internals

Type/Module	Description
AsyncActivation<'T>	The F# compiler emits references to this type to implement F# async expressions.
AsyncPrimitives	Entry points for generated code
AsyncReturn	The F# compiler emits references to this type to implement F# async expressions.

Other namespace members

Type/Module	Description
BackgroundTaskBuilder	Contains methods to build tasks using the F# computation expression syntax
TaskBuilder (Module)	Contains the `task` computation expression builder.
TaskBuilder (Type)	Contains methods to build tasks using the F# computation expression syntax
TaskBuilderBase	Contains methods to build tasks using the F# computation expression syntax
TaskCode<'TOverall, 'T>	A special compiler-recognised delegate type for specifying blocks of task code with access to the state machine.
TaskResumptionFunc<'TOverall>	Represents the runtime continuation of a task state machine created dynamically
TaskStateMachine<'TOverall>	This is used by the compiler as a template for creating state machine structs
TaskStateMachineData<'T>	The extra data stored in ResumableStateMachine for tasks