Enum ControlError 

#[non_exhaustive]
pub enum ControlError {
    Unavailable(Error),
    Server {
        code: ErrorCode,
        message: String,
    },
    TimedOut,
    Protocol(String),
}

Why a control request failed.

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.

Unavailable(Error)

No daemon accepted the connection: it is not running, or the socket is stale. Nothing was sent.

Server

The daemon refused the request. A daemon that predates a command refuses it with ErrorCode::InvalidJson, as a frame it cannot parse.

Fields

code: ErrorCode

Why, as the daemon’s stable code.

message: String

What went wrong, for people.

TimedOut

No answer within the helper’s time limit. The daemon may still carry out a mutation; query status before retrying.

Protocol(String)

The exchange broke off, or the daemon answered something this client does not understand. A mutation’s outcome is unknown.

Trait Implementations

impl Debug for ControlError

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

Formats the value using the given formatter.

impl Display for ControlError

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

Formats the value using the given formatter.

impl Error for ControlError

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.