Struct FailAfter 

pub struct FailAfter { /* private fields */ }

Policy that permits the first successes allocations and fails every allocation thereafter.

Models a fixed-capacity allocator that runs out: the OOM cliff lands at a precise, reproducible request number regardless of request sizes. Stateful — the success counter is an AtomicUsize, so the policy is Send + Sync and a Faulty parameterised by it can wrap a multi-threaded allocator.

Implementations

impl FailAfter

pub const fn new(successes: usize) -> FailAfter

Construct a policy that allows successes allocations through, then fails all subsequent ones.

FailAfter::new(0) is equivalent to AlwaysFail.

pub fn remaining(&self) -> usize

Success credits still remaining (advisory snapshot — may be stale the instant it is read under concurrent allocation).

Trait Implementations

impl AllocFaultPolicy for FailAfter

fn should_fail(&self, _layout: NonZeroLayout) -> bool

Return true to force the pending allocation of layout to fail with AllocError; return false to let it proceed to the inner allocator.

impl Debug for FailAfter

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

Formats the value using the given formatter.