Struct CacheEvictionDeferral 

pub struct CacheEvictionDeferral(/* private fields */);

RAII guard deferring page-cache eviction until the outermost scope drops.

Evictions requested after the last scope has dropped are issued immediately, exactly as if no scope had existed — keep the scope alive for the whole multi-pass operation. The depth is process-global: scopes held by concurrent operations combine, and the last one out drains.

Implementations

impl CacheEvictionDeferral

pub fn acquire() -> Self

Open a deferral scope. Callers running a multi-pass operation (an external verify-then-repair flow, for example) hold this across every pass so intermediate reads stay cached until the operation completes.

The guard must be dropped: leaking it (mem::forget, a leaked task still holding it) leaves the depth raised and disables the eviction discipline for the rest of the process.

Trait Implementations

impl Drop for CacheEvictionDeferral

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.