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WitnessAsync.LinkExternalCancellation(CancellationToken) method

Defined in

Type: WitnessAsync Namespace: ReactiveUI.Primitives.Async Assembly: ReactiveUI.Primitives.Async.dll

Applies to

net10.0, net10.0, net10.0-desktop1.0, net10.0-desktop1.0, net10.0-browserwasm1.0, net10.0-browserwasm1.0, net9.0, net9.0, net9.0-desktop1.0, net9.0-desktop1.0, net9.0-browserwasm1.0, net9.0-browserwasm1.0, net8.0, net8.0, net8.0-ios17.5, net8.0-macos14.5, net8.0-macos14.5, net8.0-macos14.2, net8.0-macos14.2, net8.0-maccatalyst17.5, net8.0-maccatalyst17.5, net8.0-tvos17.2, net8.0-tvos17.2, net8.0-ios17.5, netstandard2.1, netstandard2.1, net481, net462, net462, net481

Attributes: [DebuggerStepThrough]

protected void LinkExternalCancellation(CancellationToken external)

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Summary: Links an external cancellation token into this observer's dispose chain. When external is cancelled, the observer disposes — propagating cancellation through the linked token that subclasses receive in their OnNextAsyncCore / OnErrorResumeAsyncCore arguments. This eliminates the need to allocate a per-emission linked CancellationTokenSource. Each observer supports at most one link; calling this method again replaces the previous registration.

Parameters

NameTypeDescription
externalCancellationTokenThe external token whose cancellation should trigger this observer's disposal.