ThreadError
enum ThreadErroruse thread::{ThreadError};compiler/src/builtin_docs/thread.hy The error of every thread function.
It implements Show, so format("%v", e) gives the variant name.
Variants#
WouldBlock#
The operation would have to wait: try_recv on an empty channel, or
try_lock / try_read / try_write on a lock that is held.
Disconnected#
The channel is closed: send after close, or recv / try_recv
on a closed channel with no values left.
JoinFailed#
The thread cannot be joined: it was already joined or detached, or it panicked instead of returning a value.
NotSendable#
A value cannot cross to another thread: it is or contains a stream, a
Thread, a coroutine, a gc handle, a partially applied function, or
a cycle.
Poisoned#
A readers-writer lock was poisoned by a thread that panicked while holding it.
Other#
Any other failure: an unlock of a mutex this thread does not hold, a
second lock while one is held, or a lock callback that does not
return a pair.
Examples#
use thread::{channel, close, send, ThreadError};
use tests::assert;
let (tx, rx) = match channel() {
Result::Ok(pair) => pair,
Result::Err(_) => panic "channel failed",
};
let _ = close(tx);
let closed = match send(tx, 1) {
Result::Err(ThreadError::Disconnected) => true,
default => false,
};
assert!(closed);