Enum Code 

pub enum Code {
    Canceled,
    Unknown,
    InvalidArgument,
    DeadlineExceeded,
    NotFound,
    AlreadyExists,
    PermissionDenied,
    ResourceExhausted,
    FailedPrecondition,
    Aborted,
    OutOfRange,
    Unimplemented,
    Internal,
    Unavailable,
    DataLoss,
    Unauthenticated,
}

Error category: the 16 Connect codes, one-to-one.

A missed NotAfter commit deadline, a full shard, outbox backpressure and pending verification are Code::Unavailable, never Code::ResourceExhausted (SPEC-TRANSPORT-CONNECT §5): nothing commits and a retry with the same nonce is safe. Admission challenges and denials are Code::PermissionDenied, never ResourceExhausted, because clients retry that code on a backoff ladder.

Variants

Canceled

The caller canceled the request.

Unknown

No more specific category applies.

InvalidArgument

Malformed request: bad ref name, noncanonical field, wrong framing.

DeadlineExceeded

The request ran past its deadline.

NotFound

The named ref, pack or repository does not exist (or is private).

AlreadyExists

The entity the caller tried to create already exists.

PermissionDenied

Authenticated, but not allowed; also every admission challenge (HTTP 402) and denial.

ResourceExhausted

A client-attributable size or rate cap, such as an oversized pack or a spent per-signer quota. Never a server-side capacity limit: those are Code::Unavailable.

FailedPrecondition

A compare-and-swap precondition or upload ticket did not hold.

Aborted

The same operation is in flight; the client may retry unchanged.

OutOfRange

A value outside its valid range.

Unimplemented

The deployment does not support this procedure.

Internal

A server-side failure.

Unavailable

Temporarily unable to commit: backend outage, missed NotAfter deadline, full shard, outbox backpressure or pending verification. Retrying with the same nonce is safe.

DataLoss

Unrecoverable data loss or corruption.

Unauthenticated

Missing or invalid credentials.

Implementations

impl Code

pub const fn as_str(self) -> &'static str

The Connect protocol’s canonical name, e.g. invalid_argument. Also the code label value for crate::METRIC_REQUESTS.

pub const fn is_retryable(self) -> bool

Whether a client retries this code on its backoff ladder: unavailable, resource_exhausted and aborted (SPEC-TRANSPORT §7, SPEC-TRANSPORT-CONNECT §5).

Trait Implementations

impl Clone for Code

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Code

impl Debug for Code

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

Formats the value using the given formatter.

impl Eq for Code

impl Hash for Code

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Code

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Code