Enum Error 

#[non_exhaustive]
pub enum Error {
    InvalidInput(String),
    Dns(String),
    Network(String),
    Timeout(u64),
    Unsupported(String),
    Io(Error),
    Other(String),
}

Errors produced by netscli-core operations.

Variants group failures by category rather than by call site so consumers can write one match arm per kind of problem (Dns, InvalidInput, etc.) instead of per specific operation.

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.

InvalidInput(String)

The caller supplied bad input (malformed IP, port 0, empty host, subnet too large, etc). Recoverable by the caller correcting the input.

Dns(String)

DNS resolution failed. Wraps the reason as a string because hickory-resolver errors aren’t Clone and their variants aren’t stable enough to re-export directly.

Network(String)

A socket-level network operation failed (connection refused, unreachable, host down, etc).

Timeout(u64)

An operation exceeded its configured timeout. The value is the timeout that was hit, in milliseconds.

Unsupported(String)

The requested operation isn’t available in this build (e.g. packet capture without the pcap feature) or on this platform.

Io(Error)

Standard I/O error (file open, file write, socket bind, etc).

Other(String)

Fallback for errors that haven’t been categorised yet. New variants will land here and move out as modules convert from anyhow::Error to this type.

Implementations

impl Error

pub fn invalid_input<T: Display>(msg: T) -> Self

Convenience constructor for Error::InvalidInput that accepts anything Displayable so call sites stay terse.

pub fn dns<T: Display>(msg: T) -> Self

Convenience constructor for Error::Dns.

pub fn network<T: Display>(msg: T) -> Self

Convenience constructor for Error::Network.

pub fn unsupported<T: Display>(msg: T) -> Self

Convenience constructor for Error::Unsupported.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: Error) -> Self

Converts to this type from the input type.