ollie

@alexforencich I think this is ready to go

THere are some API issue to address here. Opening up the flags to the user is presents the user with the ability to break the tokio-uring lifecycle managment. Setting `IOSQE_CQE_SKIP_SUCCESS`...

My thinking on this is that `Link` becomes a struct, and that one of the Op traits (maybe `OneshotOutputTransform` ) gains a link method. This would consume the unsubmitted Op,...

```rust struct UnsubmittedOneshot { fn link(self, other: UnsubmittedOneShot) -> Link { // returns Link struct which have two different OneShot(s). It's gonna happen recursively. } } struct Link { //...

@ileixe yes, thats what I had in mind, although I haven't fully thought through all the implications / issues

@ileixe I'd like the opinion of @Noah-Kennedy, as this is building on a lot of his work

@mzabaluev you're probably best placed for an opinion

@FrankReh Do you an interest in rebasing this? I'd love to see this merged

@redbaron Do you still have an interest in this merging? If so, could you update to pass `fmt`

@Alonely0 Its possible to configure io_uring such that it invalid for a submission to come from more than 1 thread. I suspect there are other things to consider also. ```rust...