Struct WritePermit 

pub struct WritePermit { /* private fields */ }

WritePermit: requires who get it need to populate the cache and then release it

Implementations

impl WritePermit

pub fn new( timeout: Duration, stale_writer: bool, extensions: Extensions, ) -> (WritePermit, LockStub)

Create a new lock, with a permit to be given to the associated writer.

pub fn stale_writer(&self) -> bool

Was this lock for a stale cache fetch writer?

pub fn unlock(&mut self, reason: LockStatus)

pub fn lock_status(&self) -> LockStatus

pub fn extensions(&self) -> &Extensions

pub fn publish(&self, tokens: &[u64])

Describe what this fill involves, so readers that cannot use it stop waiting. Tokens are opaque: writer and readers need only agree on meaning.

Each call replaces the previous description, since a writer that moved on is no longer doing what it said and a reader giving up over an abandoned attempt would lose its caching for nothing. Empty describes nothing. Only matching readers are woken.

Trait Implementations

impl Debug for WritePermit

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

Formats the value using the given formatter.

impl Drop for WritePermit

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.