Struct SpawnPermit 

pub struct SpawnPermit { /* private fields */ }

RAII permit for one in-flight spawn. Frees the slot on drop. Hold it ONLY for the duration of the boot (a local in spawn_one), so the gate caps concurrent boots, not running VMs. held == false when the gate is disabled — a zero-cost no-op permit.

Implementations

impl SpawnPermit

pub fn is_held(&self) -> bool

Whether this permit actually occupies a slot (false when disabled).

Trait Implementations

impl Debug for SpawnPermit

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for SpawnPermit

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.