Comments (3)
It is because the Ref
is not Send
. Therefore if you use it across .await
points, the returned future will not be Send
. It is a requirement for the returned future to be Send
so it can be later boxed.
One possible way to solve this might be to change the Dashmap
that is backing the Extensions
by a tokio::RwLock<HashMap>
so that LockGuard
are Send
.
Currently the only solution to solve your issue is either to constraint your ref to a limited scope before your .await
point:
async fn middleware(socket: SocketRef) -> Result<(), socketioxide::SocketError<()>> {
{
let ext: &Extensions = &socket.extensions;
let number: Option<Ref<i32>> = ext.get::<i32>();
}
let _ = test_async().await;
Ok(())
}
or to clone the content and discard the Ref
.
from socketioxide.
Thanks for the answer, I just tried to use cloning for now, as the objects where not too complicated. But the solution with the limitation of the scope is good one, did not figure out it myself
Are there any plans to add rwlock/mutex to extensions?
from socketioxide.
Actually, it is global to every handlers (not only middlewares).
The only thing I could do is to provide a Extension
extractor that directly get and clone the object like with the Extension
extractor from axum. I might also add an HttpExtension
extractor that would correspond to the http request extension.
from socketioxide.
Related Issues (20)
- Inconsistent binary packet ordering HOT 3
- Automatic crate publishing
- Custom parser support HOT 2
- Feature reqwest: List all rooms HOT 1
- Using TLS to encrypt all messages HOT 2
- WebTransport support HOT 1
- Socket-io client does not upgrade to Websocket, it just works as polling HOT 3
- Add middlewares services to namespaces
- All events get blocked when socket is emitting lots of data HOT 14
- Several handlers for a single event HOT 2
- Binary packet placeholder handling does not handle all possible messages
- Relationship between `Bin` and the structure of `Data` can be ambiguous for binary packets HOT 14
- Binary events sent to handlers have a 0x4 byte prepended to the binary data (v4 server) HOT 2
- `OPTIONS` request should not return `BadHandshakeMethod` error HOT 1
- Add default event "connection" HOT 1
- delete_ns blocks thread indefinitely HOT 1
- MongoDB Adpter HOT 1
- Hold a per `Client` state rather than a static state. HOT 1
- Unnecessary panic on Message enum match arms HOT 2
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from socketioxide.