License: Apache License 2.0
Local-sync is a crate providing data structures for sync within the local thread.
Mpsc includes bounded and unbounded channel.
Once cell like once in golang.
Oneshot channel which can be send and receive data only one time. Also, it can be used as a notification method.
You can async wait permits and add permits with Semaphore.
Local-sync is licensed under the MIT license or Apache license.
During developing we referenced a lot from Tokio. We would like to thank the authors of the projects.
The Repository address written at crates.io is https://github.com/ihciah/local-sync rather https://github.com/monoio-rs/local-sync/
I found local-sync in crates.io, and this error caused a little confusion.
IMHO, mpsc Rx::recv should return None if all the Tx have been dropped.
In the following test cases, tokio passes while the local-sync blocks for ever.
#[monoio::test(enable_timer = true)]
async fn test_local_sync_mpsc() {
env_logger::try_init().unwrap();
let (tx, mut rx) = local_sync::mpsc::unbounded::channel::<()>();
let handle = monoio::spawn(async move {
loop {
trace!("Awaiting rx");
match rx.recv().await {
Some(()) => {
trace!("Got a rx event");
continue;
}
None => {
trace!("Received None");
break;
}
}
}
});
let handle2 = monoio::spawn(async move {
tx.send(()).unwrap();
monoio::time::sleep(std::time::Duration::from_secs(1)).await;
drop(tx);
trace!("dropped tx");
});
handle2.await;
handle.await;
}
#[monoio::test(enable_timer = true)]
async fn test_tokio_mpsc() {
env_logger::try_init().unwrap();
let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel::<()>();
let handle = monoio::spawn(async move {
loop {
trace!("Awaiting rx");
match rx.recv().await {
Some(()) => {
trace!("Got a rx event");
continue;
}
None => {
trace!("Received None");
break;
}
}
}
});
let handle2 = monoio::spawn(async move {
tx.send(()).unwrap();
monoio::time::sleep(std::time::Duration::from_secs(1)).await;
drop(tx);
trace!("dropped tx");
});
handle2.await;
handle.await;
}
similar feature as https://docs.rs/tokio/1.26.0/tokio/sync/broadcast/index.html, but it is for sync within local thread, instead of across threads
similar to https://docs.rs/tokio/1.26.0/tokio/sync/mpsc/struct.UnboundedReceiver.html#method.blocking_recv
pub fn blocking_recv(&mut self) -> [Option]<T>
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