Struct OneShotControlPolicy 

pub struct OneShotControlPolicy { /* private fields */ }

A control policy that allows each captured continuation to resume once.

Implements the kernel ControlPolicy contract: prompt entry and abort are unrestricted, but a continuation that has already been resumed cannot be resumed again. This is the default policy installed by the control lib.

Implementations

impl OneShotControlPolicy

pub fn new() -> Self

Builds a one-shot policy with no continuations yet resumed.

Trait Implementations

impl ControlPolicy for OneShotControlPolicy

fn name(&self) -> &'static str

Stable name identifying the policy in diagnostics.

fn enter_prompt(&self, _cx: &mut Cx, _prompt: &ControlPrompt) -> Result<()>

Enter a prompt boundary; the default is a no-op.

fn capture(&self, cx: &mut Cx, capture: &ControlCapture) -> Result<Ref>

Capture the continuation up to a prompt; defaults to unsupported.

fn abort(&self, cx: &mut Cx, abort: &ControlAbort) -> Result<Ref>

Abort to a prompt with a value; defaults to unsupported.

fn resume(&self, cx: &mut Cx, resume: &ControlResume) -> Result<Ref>

Resume a captured continuation with a value; defaults to unsupported.

impl Default for OneShotControlPolicy

fn default() -> Self

Returns the “default value” for a type.