Enum crossbeam_channel::TryRecvError

pub enum TryRecvError {
    Empty,
    Disconnected,
}

An error returned from the try_recv method.

Variants

Empty

A message could not be received because the channel is empty.

If this is a zero-capacity channel, then the error indicates that there was no sender available to send a message at the time.

Disconnected

The message could not be received because the channel is empty and disconnected.

Implementations

impl TryRecvError

pub fn is_empty(&self) -> bool

Returns true if the receive operation failed because the channel is empty.

pub fn is_disconnected(&self) -> bool

Returns true if the receive operation failed because the channel is disconnected.

Trait Implementations

impl Clone for TryRecvError

fn clone(&self) -> TryRecvError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for TryRecvError

impl Debug for TryRecvError

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

Formats the value using the given formatter.

impl Display for TryRecvError

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

Formats the value using the given formatter.

impl Eq for TryRecvError

impl Error for TryRecvError

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

impl From<RecvError> for TryRecvError

fn from(err: RecvError) -> TryRecvError

Performs the conversion.

impl PartialEq<TryRecvError> for TryRecvError

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for TryRecvError

impl StructuralPartialEq for TryRecvError