Enum DisconnectCause 

#[non_exhaustive]
pub enum DisconnectCause {
    ConnectFailed,
    ConnectionLost,
    ServerDisconnect(ReasonCode),
    PersistenceFailed,
}

Why a connection went down, carried by Reconnecting. Deliberately coarse; the full error detail is available through tracing.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ConnectFailed

The transport failed (DNS, TCP, TLS) or the handshake timed out.

ConnectionLost

An established connection was lost: an I/O error or EOF, a keep-alive or ack timeout, or a protocol error reported with a DISCONNECT.

ServerDisconnect(ReasonCode)

The broker closed the session with a DISCONNECT packet.

PersistenceFailed

The persistence backend failed to write; the unpersisted ops are retained and retried after reconnecting.

Trait Implementations

impl Clone for DisconnectCause

fn clone(&self) -> DisconnectCause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DisconnectCause

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

Formats the value using the given formatter.

impl PartialEq for DisconnectCause

fn eq(&self, other: &DisconnectCause) -> 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 DisconnectCause

impl Eq for DisconnectCause

impl StructuralPartialEq for DisconnectCause