Enum TryDequeueError

pub enum TryDequeueError {
    Empty,
    Inconsistent,
    Busy,
}

Errors returned by MpscQueue::try_dequeue and Consumer::try_dequeue.

Variants

Empty

No element was dequeued because the queue was empty.

Inconsistent

The queue is currently in an inconsistent state.

Since inconsistent states are very short-lived, the caller may want to try dequeueing a second time.

Busy

Another thread is currently calling MpscQueue::try_dequeue or MpscQueue::dequeue, or owns a Consumer or OwnedConsumer handle.

This is a multi-producer, single-consumer queue, so only a single thread may dequeue elements at any given time.

Trait Implementations

impl Debug for TryDequeueError

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

Formats the value using the given formatter.

impl PartialEq for TryDequeueError

fn eq(&self, other: &TryDequeueError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for TryDequeueError

impl StructuralPartialEq for TryDequeueError