std/sync/mpmc/
error.rs

1pub use crate::sync::mpsc::{RecvError, RecvTimeoutError, SendError, TryRecvError, TrySendError};
2use crate::{error, fmt};
3
4/// An error returned from the [`send_timeout`] method.
5///
6/// The error contains the message being sent so it can be recovered.
7///
8/// [`send_timeout`]: super::Sender::send_timeout
9#[derive(PartialEq, Eq, Clone, Copy)]
10#[unstable(feature = "mpmc_channel", issue = "126840")]
11pub enum SendTimeoutError<T> {
12    /// The message could not be sent because the channel is full and the operation timed out.
13    ///
14    /// If this is a zero-capacity channel, then the error indicates that there was no receiver
15    /// available to receive the message and the operation timed out.
16    Timeout(T),
17
18    /// The message could not be sent because the channel is disconnected.
19    Disconnected(T),
20}
21
22#[unstable(feature = "mpmc_channel", issue = "126840")]
23impl<T> fmt::Debug for SendTimeoutError<T> {
24    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
25        "SendTimeoutError(..)".fmt(f)
26    }
27}
28
29#[unstable(feature = "mpmc_channel", issue = "126840")]
30impl<T> fmt::Display for SendTimeoutError<T> {
31    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
32        match *self {
33            SendTimeoutError::Timeout(..) => "timed out waiting on send operation".fmt(f),
34            SendTimeoutError::Disconnected(..) => "sending on a disconnected channel".fmt(f),
35        }
36    }
37}
38
39#[unstable(feature = "mpmc_channel", issue = "126840")]
40impl<T> error::Error for SendTimeoutError<T> {}
41
42#[unstable(feature = "mpmc_channel", issue = "126840")]
43impl<T> From<SendError<T>> for SendTimeoutError<T> {
44    fn from(err: SendError<T>) -> SendTimeoutError<T> {
45        match err {
46            SendError(e) => SendTimeoutError::Disconnected(e),
47        }
48    }
49}
std/sync/mpmc/error.rs

std/sync/mpmc/
error.rs
