Enum tokio::sync::mpsc::error::TryRecvError

pub enum TryRecvError {
    Empty,
    Closed,
}

This is supported on feature="sync" only.

This enumeration is the list of the possible reasons that try_recv could not return data when called.

Variants

Empty

This is supported on feature="sync" only.

This channel is currently empty, but the Sender(s) have not yet disconnected, so data may yet become available.

Closed

This is supported on feature="sync" only.

The channel's sending half has been closed, and there will never be any more data received on it.

Trait Implementations

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, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Error for TryRecvError

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.

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

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 StructuralPartialEq for TryRecvError