Struct FailEveryNth 

pub struct FailEveryNth { /* private fields */ }

Policy that fails every period-th allocation and permits the rest.

Models intermittent OOM (transient pressure): with period = 3, allocations 3, 6, 9, … fail and the rest succeed. Stateful — the call counter is an AtomicUsize, so the policy is Send + Sync.

Implementations

impl FailEveryNth

pub const fn new(period: usize) -> FailEveryNth

Construct a policy that fails every period-th allocation.

Panics

Panics if period == 0. A period of 1 fails every allocation (equivalent to AlwaysFail).

Trait Implementations

impl AllocFaultPolicy for FailEveryNth

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 FailEveryNth

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

Formats the value using the given formatter.