Enum SignalError 

pub enum SignalError {
    Disconnected,
    AlreadyInitialized,
    OsError(Error),
}

An error produced by signal channel operations.

SignalError implements Clone and PartialEq; for the OsError variant only the io::ErrorKind is compared and cloned, since io::Error itself is neither Clone nor PartialEq.

Variants

Disconnected

The channel is disconnected (the paired Signals handle was dropped).

AlreadyInitialized

Signals::new was called while another Signals instance is active.

OsError(Error)

An OS-level operation failed during signal channel setup.

Trait Implementations

impl Clone for SignalError

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 SignalError

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

Formats the value using the given formatter.

impl Display for SignalError

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

Formats the value using the given formatter.

impl Error for SignalError

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 SignalError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for SignalError