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im: Relax Send + Sync bounds #63

Merged
merged 2 commits into from
Nov 11, 2024
Merged

im: Relax Send + Sync bounds #63

merged 2 commits into from
Nov 11, 2024

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jplatte
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@jplatte jplatte commented Oct 13, 2024

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@zzorba
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zzorba commented Oct 14, 2024

Should eyeball/src/subscriber/async_lock.rs also be updated to use the new ReusableBoxFuture, so we can drop the dependency on tokio-util all together?

@@ -0,0 +1,161 @@
// Copy-pasted from https://docs.rs/tokio-util/latest/src/tokio_util/sync/reusable_box.rs.html
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Should we add the license, or create an ATTRIBUTION file?

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Is that some sort of standard? I didn't find anything immediately.

I felt when writing this that the comment at the top should be sufficient attribution for copying a small file out of a permissively-licensed project. I suppose it wouldn't hurt to note the original license. I don't think adding the license anywhere is necessary though, since MIT allows redistributing stuff under a different license IIRC (I am not a lawyer, of course).

Also, I plan to get rid of this module again in the future anyways, once tokio-rs/tokio#6908 is merged and another release is made it should be possible to write a self-referential future by hand that can be stored in the VectorSubscriberStream without going through dyn Future. It's a bit tricky though, and I haven't had any focus time for that sort of stuff lately. Let me know if you're interested in helping out 😉

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jplatte commented Nov 6, 2024

Should eyeball/src/subscriber/async_lock.rs also be updated to use the new ReusableBoxFuture, so we can drop the dependency on tokio-util all together?

No, I don't think any other code should be updated. The custom ReusableBoxFuture requires extra unsafe impl Sends to work in async contexts where futures need to be Send.

@jplatte jplatte marked this pull request as ready for review November 6, 2024 18:54
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jplatte commented Nov 6, 2024

Not sure when I'll get to implementing this in another way, though I would like to. Probably makes sense to merge this as-is for now (potentially with light adjustments for attribution).

@jplatte jplatte requested a review from Hywan November 7, 2024 19:04
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Overall I think it's a good step forward. Looking for the tokio's PR to be merged. Well done.

@jplatte jplatte merged commit e218ce8 into main Nov 11, 2024
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@jplatte jplatte deleted the jplatte/send-sync branch November 11, 2024 16:56
@jplatte jplatte changed the title Relax Send + Sync bounds im: Relax Send + Sync bounds Nov 11, 2024
Hywan added a commit to Hywan/matrix-rust-sdk that referenced this pull request Nov 13, 2024
…nown`.

This patch updates `eyeball-im` and `eyeball-im-util` to integrate
jplatte/eyeball#63. With this new feature, we
can have a single implementation of `ObservableMap` (instead of 2: one
for all targets, one for `wasm32-u-u`). It makes it possible to get
`Client::rooms_stream` available on all targets now.
Hywan added a commit to Hywan/matrix-rust-sdk that referenced this pull request Nov 13, 2024
…nown`.

This patch updates `eyeball-im` and `eyeball-im-util` to integrate
jplatte/eyeball#63. With this new feature, we
can have a single implementation of `ObservableMap` (instead of 2: one
for all targets, one for `wasm32-u-u`). It makes it possible to get
`Client::rooms_stream` available on all targets now.
Hywan added a commit to Hywan/matrix-rust-sdk that referenced this pull request Nov 13, 2024
…nown`.

This patch updates `eyeball-im` and `eyeball-im-util` to integrate
jplatte/eyeball#63. With this new feature, we
can have a single implementation of `ObservableMap` (instead of 2: one
for all targets, one for `wasm32-u-u`). It makes it possible to get
`Client::rooms_stream` available on all targets now.
Hywan added a commit to matrix-org/matrix-rust-sdk that referenced this pull request Nov 13, 2024
…nown`.

This patch updates `eyeball-im` and `eyeball-im-util` to integrate
jplatte/eyeball#63. With this new feature, we
can have a single implementation of `ObservableMap` (instead of 2: one
for all targets, one for `wasm32-u-u`). It makes it possible to get
`Client::rooms_stream` available on all targets now.
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3 participants