Enum SuggestExitNodeError 

pub enum SuggestExitNodeError {
    NoPreferredDerp,
}

Why an exit-node suggestion could not be produced — the Rust analog of Go’s ErrNoPreferredDERP.

This is distinct from “no suggestion”: an empty result (no eligible candidate) is Ok(None), not an error (mirroring Go returning an empty response with a nil error). The only error state in the Phase-1 DERP path is the precondition failure below.

Variants

NoPreferredDerp

No usable netcheck report yet: there is no measured preferred DERP region (NetcheckReport::preferred_derp is None/0), so the latency-based region ranking can’t run. Go returns ErrNoPreferredDERP (“no preferred DERP, try again later”); callers tolerate it and retry once a netcheck has completed.

Trait Implementations

impl Clone for SuggestExitNodeError

fn clone(&self) -> SuggestExitNodeError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SuggestExitNodeError

impl Debug for SuggestExitNodeError

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

Formats the value using the given formatter.

impl Display for SuggestExitNodeError

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

Formats the value using the given formatter.

impl Eq for SuggestExitNodeError

impl Error for SuggestExitNodeError

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 SuggestExitNodeError

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