Enum TransportError 

#[non_exhaustive]
pub enum TransportError {
    SetupTimeout,
    ReplyTimeout,
    WrongTcId {
        got: u8,
        expected: u8,
    },
    ModuleError,
    Malformed,
    ReassemblyOverflow,
    OutboundQueueFull,
    SpduTooLarge {
        len: usize,
    },
}

Transport-layer errors.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

SetupTimeout

No C_T_C_Reply within the reply timeout (§A.4 timeout arc).

ReplyTimeout

A C_TPDU (poll or data block) sent while Active went unanswered past the reply timeout (§A.4 timeout arc, applied to the Active state rather than only connection setup).

WrongTcId

A reply arrived for a different t_c_id than ours.

Fields

got: u8

The t_c_id received.

expected: u8

Our connection’s t_c_id.

ModuleError

The module reported a T_C_Error.

Malformed

A frame could not be parsed as an R_TPDU.

ReassemblyOverflow

A chained T_Data_More* reassembly exceeded MAX_REASSEMBLY_LEN without a terminating T_Data_Last — the partial reassembly is dropped rather than retained (a well-behaved module chains a bounded number of fragments; this guards a stuck or hostile one from growing host memory without limit).

OutboundQueueFull

Transport::send_spdu was called with MAX_OUTBOUND_QUEUE SPDUs already queued — the caller is producing faster than the half-duplex link can drain (one block per module turn); queueing further would grow unboundedly. The new SPDU is dropped; the caller should retry once earlier sends have drained.

SpduTooLarge

Transport::send_spdu was called with an SPDU longer than MAX_SPDU_LEN — it cannot be wrapped in a single T_Data_Last CommandTpdu (length_field’s own max encodable value). Previously this was only discovered when the resulting CommandTpdu failed to serialize, which Transport::cmd reported by panicking.

Fields

len: usize

The SPDU’s actual length.

Trait Implementations

impl Clone for TransportError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransportError

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

Formats the value using the given formatter.

impl Display for TransportError

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

Formats the value using the given formatter.

impl Eq for TransportError

impl Error for TransportError

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 TransportError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TransportError