Cancellation Source

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Import: import system.core;

CancellationSource

Cooperative cancellation flag shared with tokens from a CancellationSource. @shared so a token/source can be captured into a Task.spawn body and polled cross-thread.

shared public class CancellationSource

constructor

Creates a source that is not yet cancelled.

public constructor()

is_cancelled

True after cancel has been called.

public get is_cancelled(): bool

cancel

Marks this source (and all of its tokens) as cancelled.

public fun cancel(): void

token

Returns a token that observes this source's cancelled state.

public get token(): CancellationToken