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40 lines
1.3 KiB
40 lines
1.3 KiB
5 years ago
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#if NET20 || NET30 || NET35 || !NET_4_6
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namespace System.Threading.Tasks
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{
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/// <summary>
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/// Task creation flags which are only used internally.
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/// </summary>
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[Flags]
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[Serializable]
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internal enum InternalTaskOptions
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{
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/// <summary> Specifies "No internal task options" </summary>
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None,
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/// <summary>Used to filter out internal vs. public task creation options.</summary>
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InternalOptionsMask = 0x0000FF00,
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ChildReplica = 0x0100,
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ContinuationTask = 0x0200,
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PromiseTask = 0x0400,
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SelfReplicating = 0x0800,
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/// <summary>
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/// Store the presence of TaskContinuationOptions.LazyCancellation, since it does not directly
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/// translate into any TaskCreationOptions.
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/// </summary>
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LazyCancellation = 0x1000,
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/// <summary>Specifies that the task will be queued by the runtime before handing it over to the user.
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/// This flag will be used to skip the cancellationtoken registration step, which is only meant for unstarted tasks.</summary>
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QueuedByRuntime = 0x2000,
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/// <summary>
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/// Denotes that Dispose should be a complete nop for a Task. Used when constructing tasks that are meant to be cached/reused.
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/// </summary>
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DoNotDispose = 0x4000
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}
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}
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#endif
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