Enum DropReason 

pub enum DropReason {
    KernelQueueFull,
    NoObserver,
    PeerGone,
    StorageFull,
}

Reason why a BeatOutcome::Dropped was produced.

Four-way taxonomy covering every io::Error classified as Dropped by classify_send_error. Copy by construction; fits in a single byte (statically asserted below). Operators can match on this to distinguish “observer not yet listening” from “socket torn down” from “host full”.

Variants

KernelQueueFull

The kernel send buffer or socket queue was full (transient).

Source: WouldBlock or ENOBUFS. The observer is likely alive; retry after a short back-off or rely on set_reconnect_after.

NoObserver

No observer is bound at the target path or address.

Source: NotFound or ConnectionRefused. Expected during a rolling observer restart before the new process has bound the socket.

PeerGone

The peer socket was torn down since the last successful beat.

Source: ConnectionReset, NotConnected, or BrokenPipe. The channel was live and then disappeared — typically a crash or explicit observer shutdown. Call reconnect to recover.

StorageFull

The host filesystem is out of space (UDS socket path on a full volume).

Source: StorageFull. Retrying without clearing disk space will not resolve this; operator intervention is required.

Trait Implementations

impl Clone for DropReason

fn clone(&self) -> DropReason

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DropReason

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

Formats the value using the given formatter.

impl Display for DropReason

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

Formats the value using the given formatter.

impl PartialEq for DropReason

fn eq(&self, other: &DropReason) -> 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 Copy for DropReason

impl Eq for DropReason

impl StructuralPartialEq for DropReason