rt: EnterGuard should not be Send
#5766
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Removes `Send` from `EnterGuard` (returned by `Handle::enter()`. The guard type changes a thread-local variable on drop. If the guard is moved to a different thread, it would modify the wrong thread-local. This is a **breaking change** but it fixes a bug and prevents incorrect user behavior. If user code breaks because of this, it is because they (most likely) have a bug in their code.
carllerche
added
C-bug
Darksonn
approved these changes
Jun 5, 2023
crapStone
pushed a commit
to Calciumdibromid/CaBr2
that referenced
this pull request
Jul 6, 2023
This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [tokio](https://tokio.rs) ([source](https://github.com/tokio-rs/tokio)) | dependencies | minor | `1.28.2` -> `1.29.1` | | [tokio](https://tokio.rs) ([source](https://github.com/tokio-rs/tokio)) | dev-dependencies | minor | `1.28.2` -> `1.29.1` | --- ### Release Notes <details> <summary>tokio-rs/tokio (tokio)</summary> ### [`v1.29.1`](https://github.com/tokio-rs/tokio/releases/tag/tokio-1.29.1): Tokio v1.29.1 [Compare Source](tokio-rs/tokio@tokio-1.29.0...tokio-1.29.1) ##### Fixed - rt: fix nesting two `block_in_place` with a `block_on` between (#​5837]) #​5837]: tokio-rs/tokio#5837 ### [`v1.29.0`](https://github.com/tokio-rs/tokio/releases/tag/tokio-1.29.0): Tokio v1.29.0 [Compare Source](tokio-rs/tokio@tokio-1.28.2...tokio-1.29.0) Technically a breaking change, the `Send` implementation is removed from `runtime::EnterGuard`. This change fixes a bug and should not impact most users. ##### Breaking - rt: `EnterGuard` should not be `Send` (#​5766]) ##### Fixed - fs: reduce blocking ops in `fs::read_dir` (#​5653]) - rt: fix possible starvation (#​5686], #​5712]) - rt: fix stacked borrows issue in `JoinSet` (#​5693]) - rt: panic if `EnterGuard` dropped incorrect order (#​5772]) - time: do not overflow to signal value (#​5710]) - fs: wait for in-flight ops before cloning `File` (#​5803]) ##### Changed - rt: reduce time to poll tasks scheduled from outside the runtime (#​5705], #​5720]) ##### Added - net: add uds doc alias for unix sockets (#​5659]) - rt: add metric for number of tasks (#​5628]) - sync: implement more traits for channel errors (#​5666]) - net: add nodelay methods on TcpSocket (#​5672]) - sync: add `broadcast::Receiver::blocking_recv` (#​5690]) - process: add `raw_arg` method to `Command` (#​5704]) - io: support PRIORITY epoll events (#​5566]) - task: add `JoinSet::poll_join_next` (#​5721]) - net: add support for Redox OS (#​5790]) ##### Unstable - rt: add the ability to dump task backtraces (#​5608], #​5676], #​5708], #​5717]) - rt: instrument task poll times with a histogram (#​5685]) #​5766]: tokio-rs/tokio#5766 #​5653]: tokio-rs/tokio#5653 #​5686]: tokio-rs/tokio#5686 #​5712]: tokio-rs/tokio#5712 #​5693]: tokio-rs/tokio#5693 #​5772]: tokio-rs/tokio#5772 #​5710]: tokio-rs/tokio#5710 #​5803]: tokio-rs/tokio#5803 #​5705]: tokio-rs/tokio#5705 #​5720]: tokio-rs/tokio#5720 #​5659]: tokio-rs/tokio#5659 #​5628]: tokio-rs/tokio#5628 #​5666]: tokio-rs/tokio#5666 #​5672]: tokio-rs/tokio#5672 #​5690]: tokio-rs/tokio#5690 #​5704]: tokio-rs/tokio#5704 #​5566]: tokio-rs/tokio#5566 #​5721]: tokio-rs/tokio#5721 #​5790]: tokio-rs/tokio#5790 #​5608]: tokio-rs/tokio#5608 #​5676]: tokio-rs/tokio#5676 #​5708]: tokio-rs/tokio#5708 #​5717]: tokio-rs/tokio#5717 #​5685]: tokio-rs/tokio#5685 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about these updates again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNi4wLjAiLCJ1cGRhdGVkSW5WZXIiOiIzNi4wLjAiLCJ0YXJnZXRCcmFuY2giOiJkZXZlbG9wIn0=--> Co-authored-by: cabr2-bot <cabr2.help@gmail.com> Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1958 Reviewed-by: crapStone <crapstone01@gmail.com> Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org> Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
ramnivas
added a commit
to exograph/exograph
that referenced
this pull request
Aug 2, 2023
Since we upgraded Deno, along came a newer version of Tokio, which made a (breaking change)[tokio-rs/tokio#5766] to make `EnterGuard` `!Send`. We need to use `Handle::current()` to get the current handle so those dynamically loaded libraries will work with the same runtime (see comments in subsystem_resolver.rs). Only one test in the server-aws-lambda crate was using the dynamically loaded library, so we fixed by using static loaders, instead. Filed #868
tekul
added a commit
to exograph/exograph
that referenced
this pull request
Aug 3, 2023
* Update to work with Deno 1.34.1 Builds against the patched_1_34_1 fork of the exograph fork which is slightly ahead of 1.34.1 on Deno's main branch. This upgrades the version of Tokio we are using, which has a (breaking change tokio-rs/tokio#5766) to make `EnterGuard` `!Send`. We need to use `Handle::current()` to get the current handle so those dynamically loaded libraries will work with the same runtime (see comments in subsystem_resolver.rs). Only one test in the server-aws-lambda crate was using the dynamically loaded library, so we fixed by using static loaders, instead. Filed #868 --------- Co-authored-by: Ramnivas Laddad <ramnivas@exograph.dev>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Removes
SendfromEnterGuard(returned byHandle::enter(). The guard type changes a thread-local variable on drop. If the guard is moved to a different thread, it will modify the wrong thread-local.This is a breaking change, but it fixes a bug and prevents incorrect user behavior. If user code breaks because of this, it is because they (most likely) have a bug in their code.