Enum MembershipInvariantError 

pub enum MembershipInvariantError {
    TerminalIdentity,
    TerminalGeneration,
    CursorRegression,
}

Invalid durable membership/history combination.

Variants

TerminalIdentity

Retained terminal names another participant or conversation.

TerminalGeneration

Retained terminal belongs to a generation newer than the current credential.

CursorRegression

A rotation asked for a cursor BELOW the one this member already holds.

The cursor is a durable cumulative boundary: the records this participant has acknowledged are acknowledged, and a new generation of the same identity does not unacknowledge them. A rotation that lowered it would make the participant’s next cumulative acknowledgement read as a gap over records it had already accounted for, and a participant that then withholds acknowledgements is a seat that never comes back.

Trait Implementations

impl Clone for MembershipInvariantError

fn clone(&self) -> MembershipInvariantError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MembershipInvariantError

impl Debug for MembershipInvariantError

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

Formats the value using the given formatter.

impl Eq for MembershipInvariantError

impl PartialEq for MembershipInvariantError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MembershipInvariantError