Struct Transient 

pub struct Transient {
    pub kind: TransientKind,
    pub context: Option<Cow<'static, str>>,
    /* private fields */
}

A failure that may succeed if the same operation is retried.

Fields

kind: TransientKind

context: Option<Cow<'static, str>>

A non-PII breadcrumb, e.g. "customers/<id> seq 42".

Implementations

impl Transient

pub fn new(kind: TransientKind) -> Transient

pub fn from_error( kind: TransientKind, e: impl Error + Send + Sync + 'static, ) -> Transient

Transient::new plus Transient::with_source, as one call — the common shape at a classification site that has the error in hand.

pub fn with_source(self, e: impl Error + Send + Sync + 'static) -> Transient

pub fn with_context(self, c: impl Into<Cow<'static, str>>) -> Transient

pub fn source_arc(&self) -> Option<&Arc<dyn Error + Send + Sync>>

pub fn is_congestion(&self) -> bool

pub fn is_contention(&self) -> bool

Trait Implementations

impl Clone for Transient

fn clone(&self) -> Transient

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Transient

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

Formats the value using the given formatter.

impl Display for Transient

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

Formats the value using the given formatter.

impl Error for Transient

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<!> for Transient

fn from(value: !) -> Transient

Converts to this type from the input type.

impl<L> From<Transient> for Fault<L>

where L: LaneProfile<Transient = Transient> + LaneProfile,

fn from(t: Transient) -> Fault<L>

Converts to this type from the input type.

impl<D, L> From<Transient> for Fail<D, L>

where L: LaneProfile<Transient = Transient> + LaneProfile,

fn from(t: Transient) -> Fail<D, L>

Converts to this type from the input type.

impl<W> From<W> for Transient

where W: Classify<Rejected = !, Lanes = Profile<false, true, false>>,

As above, for a wrapper whose only lane is transient.

fn from(w: W) -> Transient

Converts to this type from the input type.