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addTaskUnlessCancelled(executorPreference:priority:operation:)

Adds a child task to the group, unless the group has been canceled. Returns a boolean value indicating if the task was successfully added to the group or not.

Declaration

mutating func addTaskUnlessCancelled(executorPreference taskExecutor: (any TaskExecutor)? = nil, priority: TaskPriority? = nil, operation: sending @escaping @isolated(any) () async -> Void) -> Bool

Parameters

  • taskExecutor:

    The task executor that the child task should be started on and keep using. Explicitly passing nil as the executor preference is equivalent to calling the addTaskUnlessCancelled method without a preference, and effectively means to inherit the outer context’s executor preference. You can also pass the Globalconcurrentexecutor global executor explicitly.

  • priority:

    The priority of the operation task. Omit this parameter or pass nil to inherit the task group’s base priority.

  • operation:

    The operation to execute as part of the task group.

Return Value

true if the child task was added to the group; otherwise false.