Struct RundownRef

pub struct RundownRef { /* private fields */ }

Tracks the status of run-down protection for an object. The type would be embedded in the object needing run-down protection.

Implementations

impl RundownRef

pub fn new() -> Self

Initializes a new RundownRef.

pub fn re_init(&self)

Re-initialize this instance so it can be used again. It is only valid to call re_init once the object is completely run-down, via the wait_for_rundown method.

Important

The moment this method returns, new rundown protection requests can succeed. You must perform all re-initialization of the shared object the run-down protection is guarding before you call this method.

pub fn try_acquire(&self) -> Result<RundownGuard<'_>, RundownError>

Attempts to acquire rundown protection on this RundownRef, returns the RundownGuard which holds the reference count, or returns an error if the object is already being rundown.

pub fn release(&self)

Release previously acquired rundown protection.

pub fn wait_for_rundown(&self)

Blocks thread execution until there are no outstanding reference counts taken on the RundownRef, and the internal representation has been marked with [RundownFlags::RUNDOWN_IN_PROGRESS] to signal that no other thread can safely acquire a reference count afterwards.

Important

• This method is not thread safe, it must only be called by one thread.

• This method is however idempotent, it can be called multiple times.

Trait Implementations

impl Default for RundownRef

fn default() -> RundownRef

Returns the “default value” for a type.