Enum AddressBookError 

pub enum AddressBookError {
    UnknownPeer(PeerId),
    EmptyAddressList,
    Full {
        cap: usize,
    },
    AllocationFailed {
        requested: usize,
    },
}

Errors surfaced by AddressBook mutation methods.

Variants

UnknownPeer(PeerId)

register_address / forget_address / drop_peer called for a PeerId with no entry in the book.

EmptyAddressList

add_peer called with an empty address vector. An entry with zero addresses can’t be looked up successfully, so creating one is meaningless - reject up front.

Full

add_peer for a NEW peer when the book is already at its configured cap. Adversarial peer-discovery floods can’t grow the book without bound.

Fields

cap: usize

Current cap.

AllocationFailed

add_peer’s internal dedup buffer could not be reserved. Vec::try_reserve_exact returned TryReserveError - the host’s allocator has no headroom for requested addresses. The engine maps this to WireReceiveErrorKind::AllocationFailed so the receiver-side address-book hint is best-effort under allocator pressure (the envelope still routes).

Fields

requested: usize

Address count the dedup buffer attempted to reserve.

Trait Implementations

impl Clone for AddressBookError

fn clone(&self) -> AddressBookError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AddressBookError

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

Formats the value using the given formatter.

impl Display for AddressBookError

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

Formats the value using the given formatter.

impl Eq for AddressBookError

impl Error for AddressBookError

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 PartialEq for AddressBookError

fn eq(&self, other: &AddressBookError) -> 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 StructuralPartialEq for AddressBookError