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ResumeValue

Enum ResumeValue 

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pub enum ResumeValue {
    None,
    Payload(RtPayload),
    Chan(ChanId),
    Task(TaskId),
    Select {
        arm: usize,
        payload: RtPayload,
    },
}
Expand description

What the scheduler delivers back to the interpreter on resume.

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None

Nothing meaningful (e.g. after Send/Sleep/Spawn-fire-and-forget).

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Payload(RtPayload)

A received value (after Recv / a winning select recv arm).

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Chan(ChanId)

A freshly-created channel id (after NewChan).

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Task(TaskId)

A spawned task’s id (after Spawn).

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Select

The winning arm of a Select: its index plus the received payload (Nothing for a timeout arm).

Fields

§arm: usize
§payload: RtPayload

Implementations§

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impl ResumeValue

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pub fn into_payload(self) -> RtPayload

The received payload, or Nothing.

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pub fn into_chan(self) -> Option<ChanId>

The created channel id, if this resume was from a NewChan.

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pub fn into_task(self) -> Option<TaskId>

The spawned task id, if this resume was from a Spawn.

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pub fn into_select(self) -> Option<(usize, RtPayload)>

The winning arm index + its payload, if this resume was from a Select.

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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