//! Worker placement policy.
/// Whether scheduler workers are confined to logical processors.
////// The policy is an opt-in startup contract. It changes what the runtime
/// enforces, and therefore what it may publish about worker placement.
#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]pubenumWorkerPlacement{/// Workers run wherever the operating system schedules them.
////// The runtime claims no worker-to-processor or worker-to-node assignment,
/// and the topology-aware victim tier stays inactive.
#[default]
Unbound,/// Worker `i` is confined to one logical processor for its whole life.
////// Processors are taken from the detected topology in ascending id order,
/// worker `i` receiving processor `i % processor_count`, so a pool larger
/// than the machine shares processors. Construction fails closed: when the
/// topology cannot be detected, or the operating system refuses any
/// worker's binding, the scheduler is not returned and the error names the
/// lowest-numbered worker that failed. On a host with more than one NUMA
/// node the bound assignment is what the runtime publishes for
/// topology-aware stealing.
Pinned,}