Enum PresenceError 

pub enum PresenceError {
    NotInitialized,
    BeaconFailed(String),
    FoafQueryFailed(String),
    SubscriptionFailed(String),
    Internal(String),
}

Errors that can occur during presence operations.

Covers beacon broadcasting, FOAF discovery queries, event subscriptions, and general presence system failures.

Variants

NotInitialized

The presence manager has not been initialized.

BeaconFailed(String)

Beacon broadcast failed.

FoafQueryFailed(String)

Friend-of-a-friend discovery query failed.

SubscriptionFailed(String)

Presence event subscription failed.

Internal(String)

Internal presence system error.

Trait Implementations

impl Debug for PresenceError

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

Formats the value using the given formatter.

impl Display for PresenceError

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

Formats the value using the given formatter.

impl Error for PresenceError

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<PresenceError> for NetworkError

Converts a PresenceError into a NetworkError for integration with existing error propagation chains.

fn from(e: PresenceError) -> Self

Converts to this type from the input type.