Enum BarrierError 

pub enum BarrierError {
    Poisoned,
    SelfNotInGroup,
    UnorderedPeers,
    DuplicatePeers,
    Timeout,
    TransportError(TransportError),
}

An error that can occur during a barrier synchronization.

Barriers are poisoned after any error: once a Barrier returns an Err, every subsequent call will immediately return Poisoned without attempting any RDMA operations. This prevents use of a barrier whose internal epoch state may be inconsistent with remote peers.

Variants

Poisoned

The barrier was poisoned by a previous error and can no longer be used.

SelfNotInGroup

This node’s own rank is not present in the supplied peer list.

UnorderedPeers

The peer list is not sorted in strictly ascending order.

DuplicatePeers

The peer list contains the same rank more than once.

Timeout

Not all peers reached the barrier within the allotted time.

TransportError(TransportError)

An RDMA transport error occurred while exchanging barrier notifications.

Trait Implementations

impl Debug for BarrierError

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

Formats the value using the given formatter.

impl Display for BarrierError

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

Formats the value using the given formatter.

impl Error for BarrierError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<TransportError> for BarrierError

fn from(source: TransportError) -> Self

Converts to this type from the input type.