Comments (5)
Could you explain your requirement a bit more? I see a spawn_blocking
function in the tokio and async-std executors, but they seem to take a function, not a future. An example usage of the new feature would be very nice.
from async-scoped.
I wanted to spawn_blocking task but without requirement of 'static closure, something similar to scoped thread, but run on blocking thread pool. I didn't think really deeply if there is anything inherently wrong with this idea.
I had in mind something like that:
let a = 42;
unsafe {
let s = scope(|s| {
// closure is not static, so I cannot use
s.spawn_blocking(|| some_blocking_fn(&a));
});
// do some more work
s.await
}
It is unsafe obviously because if not awaited it is UB, but I think if awaited, then this should be safe?
Actually I'm not sure if this would do what I really need, i.e. that it would spawn task immediately and not on s.await
point. Maybe there is other solution to my problem that you know of?
from async-scoped.
@kodieg Got it. I've tried adding this support for tokio
. Can you check it out?
It should work with async-std
too, but I couldn't upgrade to latest async-std due to some compile error.
Edit: it also works with async-std. I must've missed something trivial.
from async-scoped.
Sorry for long reply! This looks great! I tested it on tokio rt and worked fine for me!
from async-scoped.
release 0.7.1
from async-scoped.
Related Issues (18)
- Compilation error, failed inference on closure HOT 3
- Return result containing references HOT 2
- Support for user-provided runtime HOT 5
- Why is async_scope blocks some writes to file? HOT 2
- panic when calling scope_and_block HOT 7
- Allow async block in `scope_and_block` and `scope_and_collect` HOT 1
- docs bug
- Question: using async-scoped with for_each_concurrent HOT 2
- Release async-scoped 0.9 version HOT 7
- scope_and_collect should return results in order of submission HOT 2
- tokio? HOT 5
- Limiting concurrent tasks HOT 1
- handle references in function results HOT 4
- Tokio 1.0? HOT 3
- Compilation error after Rust nightly 2021-01-10 HOT 12
- Compile fails when using async-std without the attributes feature enabled HOT 2
- Question about `spawn_cancellable` HOT 6
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from async-scoped.