Enum Error

pub enum Error<E> {
    ServerDisappeared,
    OriginDisappeared,
    ClientsDisappeared,
    NoReply,
    App(E),
}

Module-specific error codes.

Variants

ServerDisappeared

The server object has shut down.

This happens when clients:

• attempt to send messages to a server that has been deallocated.
• have their requests dropped from the serrver’s queue because the server itself was deallocated.

OriginDisappeared

A message reply could not be completed because the original requestor disappearing.

ClientsDisappeared

All the client objects have shut down.

This happens when a server attempts to pull the latest node on off the queue, but there are no more nodes on the queue and all the associated client objects have been released (impled: New nodes can never be added to the queue).

NoReply

The message was delivered to the server, but the reply context was released before sending back a reply.

App(E)

Application-specific error. The E type is typically declared as the third generic parameter to channel.

Implementations

impl<E> Error<E>

pub fn into_apperr(self) -> Option<E>

Get application-specific error.

Will return None is the error is not Error::App.

pub fn unwrap_apperr(self) -> E

Unwrap application-specific error.

Panics

If the error is not Error::App this function will panic.

Trait Implementations

impl<E> Debug for Error<E>

where E: Debug,

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

Formats the value using the given formatter.

impl<E> Display for Error<E>

where E: Error,

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

Formats the value using the given formatter.

impl<E> Error for Error<E>

where E: 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<E> From<Error<RCtxState, E>> for Error<E>

fn from(err: Error<RCtxState, E>) -> Error<E>

Converts to this type from the input type.