Update Handle::current to mention EnterGuard #4567
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Handle::current docs say it's not possible to call it on any non-runtime thread, but you can call it from a runtime context created by an EnterGuard. This updates the docs to mention EnterGuard as a way to avoid this panic.
Darksonn
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Mar 14, 2022
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| /// This will panic if called outside the context of a Tokio runtime. That means that you must | ||
| /// call this on one of the threads **being run by the runtime**. Calling this from within a | ||
| /// thread created by `std::thread::spawn` (for example) will cause a panic. | ||
| /// call this on one of the threads **being run by the runtime**, or from a thread with an active | ||
| /// `EnterGuard`. Calling this from within a thread created by `std::thread::spawn` (for example) | ||
| /// will cause a panic unless that thread has an active `EnterGuard`. |
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Seems like this should also mention spawn_blocking? Also, can you reflow the text at 80 chars?
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Mention spawn_blocking as an alternative? Or do blocking threads also not have a runtime context?
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If you mention Handle::enter and the runtime worker threads as places that are in the context, but do not mention spawn_blocking threads, then that seems like you are implying that the context is not available in spawn_blocking. However, that is not the case: the context is available in spawn_blocking.
Darksonn
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hawkw
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# 1.18.0 (April 27, 2022) This release adds a number of new APIs in `tokio::net`, `tokio::signal`, and `tokio::sync`. In addition, it adds new unstable APIs to `tokio::task` (`Id`s for uniquely identifying a task, and `AbortHandle` for remotely cancelling a task), as well as a number of bugfixes. ### Fixed - blocking: add missing `#[track_caller]` for `spawn_blocking` ([#4616]) - macros: fix `select` macro to process 64 branches ([#4519]) - net: fix `try_io` methods not calling Mio's `try_io` internally ([#4582]) - runtime: recover when OS fails to spawn a new thread ([#4485]) ### Added - macros: support setting a custom crate name for `#[tokio::main]` and `#[tokio::test]` ([#4613]) - net: add `UdpSocket::peer_addr` ([#4611]) - net: add `try_read_buf` method for named pipes ([#4626]) - signal: add `SignalKind` `Hash`/`Eq` impls and `c_int` conversion ([#4540]) - signal: add support for signals up to `SIGRTMAX` ([#4555]) - sync: add `watch::Sender::send_modify` method ([#4310]) - sync: add `broadcast::Receiver::len` method ([#4542]) - sync: add `watch::Receiver::same_channel` method ([#4581]) - sync: implement `Clone` for `RecvError` types ([#4560]) ### Changed - update `nix` to 0.24, limit features ([#4631]) - update `mio` to 0.8.1 ([#4582]) - macros: rename `tokio::select!`'s internal `util` module ([#4543]) - runtime: use `Vec::with_capacity` when building runtime ([#4553]) ### Documented - improve docs for `tokio_unstable` ([#4524]) - runtime: include more documentation for thread_pool/worker ([#4511]) - runtime: update `Handle::current`'s docs to mention `EnterGuard` ([#4567]) - time: clarify platform specific timer resolution ([#4474]) - signal: document that `Signal::recv` is cancel-safe ([#4634]) - sync: `UnboundedReceiver` close docs ([#4548]) ### Unstable The following changes only apply when building with `--cfg tokio_unstable`: - task: add `task::Id` type ([#4630]) - task: add `AbortHandle` type for cancelling tasks in a `JoinSet` ([#4530], [#4640]) - task: fix missing `doc(cfg(...))` attributes for `JoinSet` ([#4531]) - task: fix broken link in `AbortHandle` RustDoc ([#4545]) - metrics: add initial IO driver metrics ([#4507]) [#4616]: #4616 [#4519]: #4519 [#4582]: #4582 [#4485]: #4485 [#4613]: #4613 [#4611]: #4611 [#4626]: #4626 [#4540]: #4540 [#4555]: #4555 [#4310]: #4310 [#4542]: #4542 [#4581]: #4581 [#4560]: #4560 [#4631]: #4631 [#4582]: #4582 [#4543]: #4543 [#4553]: #4553 [#4524]: #4524 [#4511]: #4511 [#4567]: #4567 [#4474]: #4474 [#4634]: #4634 [#4548]: #4548 [#4630]: #4630 [#4530]: #4530 [#4640]: #4640 [#4531]: #4531 [#4545]: #4545 [#4507]: #4507
hawkw
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Apr 27, 2022
# 1.18.0 (April 27, 2022) This release adds a number of new APIs in `tokio::net`, `tokio::signal`, and `tokio::sync`. In addition, it adds new unstable APIs to `tokio::task` (`Id`s for uniquely identifying a task, and `AbortHandle` for remotely cancelling a task), as well as a number of bugfixes. ### Fixed - blocking: add missing `#[track_caller]` for `spawn_blocking` ([#4616]) - macros: fix `select` macro to process 64 branches ([#4519]) - net: fix `try_io` methods not calling Mio's `try_io` internally ([#4582]) - runtime: recover when OS fails to spawn a new thread ([#4485]) ### Added - macros: support setting a custom crate name for `#[tokio::main]` and `#[tokio::test]` ([#4613]) - net: add `UdpSocket::peer_addr` ([#4611]) - net: add `try_read_buf` method for named pipes ([#4626]) - signal: add `SignalKind` `Hash`/`Eq` impls and `c_int` conversion ([#4540]) - signal: add support for signals up to `SIGRTMAX` ([#4555]) - sync: add `watch::Sender::send_modify` method ([#4310]) - sync: add `broadcast::Receiver::len` method ([#4542]) - sync: add `watch::Receiver::same_channel` method ([#4581]) - sync: implement `Clone` for `RecvError` types ([#4560]) ### Changed - update `nix` to 0.24, limit features ([#4631]) - update `mio` to 0.8.1 ([#4582]) - macros: rename `tokio::select!`'s internal `util` module ([#4543]) - runtime: use `Vec::with_capacity` when building runtime ([#4553]) ### Documented - improve docs for `tokio_unstable` ([#4524]) - runtime: include more documentation for thread_pool/worker ([#4511]) - runtime: update `Handle::current`'s docs to mention `EnterGuard` ([#4567]) - time: clarify platform specific timer resolution ([#4474]) - signal: document that `Signal::recv` is cancel-safe ([#4634]) - sync: `UnboundedReceiver` close docs ([#4548]) ### Unstable The following changes only apply when building with `--cfg tokio_unstable`: - task: add `task::Id` type ([#4630]) - task: add `AbortHandle` type for cancelling tasks in a `JoinSet` ([#4530], [#4640]) - task: fix missing `doc(cfg(...))` attributes for `JoinSet` ([#4531]) - task: fix broken link in `AbortHandle` RustDoc ([#4545]) - metrics: add initial IO driver metrics ([#4507]) [#4616]: #4616 [#4519]: #4519 [#4582]: #4582 [#4485]: #4485 [#4613]: #4613 [#4611]: #4611 [#4626]: #4626 [#4540]: #4540 [#4555]: #4555 [#4310]: #4310 [#4542]: #4542 [#4581]: #4581 [#4560]: #4560 [#4631]: #4631 [#4582]: #4582 [#4543]: #4543 [#4553]: #4553 [#4524]: #4524 [#4511]: #4511 [#4567]: #4567 [#4474]: #4474 [#4634]: #4634 [#4548]: #4548 [#4630]: #4630 [#4530]: #4530 [#4640]: #4640 [#4531]: #4531 [#4545]: #4545 [#4507]: #4507
hawkw
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Apr 27, 2022
# 1.18.0 (April 27, 2022) This release adds a number of new APIs in `tokio::net`, `tokio::signal`, and `tokio::sync`. In addition, it adds new unstable APIs to `tokio::task` (`Id`s for uniquely identifying a task, and `AbortHandle` for remotely cancelling a task), as well as a number of bugfixes. ### Fixed - blocking: add missing `#[track_caller]` for `spawn_blocking` ([#4616]) - macros: fix `select` macro to process 64 branches ([#4519]) - net: fix `try_io` methods not calling Mio's `try_io` internally ([#4582]) - runtime: recover when OS fails to spawn a new thread ([#4485]) ### Added - macros: support setting a custom crate name for `#[tokio::main]` and `#[tokio::test]` ([#4613]) - net: add `UdpSocket::peer_addr` ([#4611]) - net: add `try_read_buf` method for named pipes ([#4626]) - signal: add `SignalKind` `Hash`/`Eq` impls and `c_int` conversion ([#4540]) - signal: add support for signals up to `SIGRTMAX` ([#4555]) - sync: add `watch::Sender::send_modify` method ([#4310]) - sync: add `broadcast::Receiver::len` method ([#4542]) - sync: add `watch::Receiver::same_channel` method ([#4581]) - sync: implement `Clone` for `RecvError` types ([#4560]) ### Changed - update `nix` to 0.24, limit features ([#4631]) - update `mio` to 0.8.1 ([#4582]) - macros: rename `tokio::select!`'s internal `util` module ([#4543]) - runtime: use `Vec::with_capacity` when building runtime ([#4553]) ### Documented - improve docs for `tokio_unstable` ([#4524]) - runtime: include more documentation for thread_pool/worker ([#4511]) - runtime: update `Handle::current`'s docs to mention `EnterGuard` ([#4567]) - time: clarify platform specific timer resolution ([#4474]) - signal: document that `Signal::recv` is cancel-safe ([#4634]) - sync: `UnboundedReceiver` close docs ([#4548]) ### Unstable The following changes only apply when building with `--cfg tokio_unstable`: - task: add `task::Id` type ([#4630]) - task: add `AbortHandle` type for cancelling tasks in a `JoinSet` ([#4530], [#4640]) - task: fix missing `doc(cfg(...))` attributes for `JoinSet` ([#4531]) - task: fix broken link in `AbortHandle` RustDoc ([#4545]) - metrics: add initial IO driver metrics ([#4507]) [#4616]: #4616 [#4519]: #4519 [#4582]: #4582 [#4485]: #4485 [#4613]: #4613 [#4611]: #4611 [#4626]: #4626 [#4540]: #4540 [#4555]: #4555 [#4310]: #4310 [#4542]: #4542 [#4581]: #4581 [#4560]: #4560 [#4631]: #4631 [#4582]: #4582 [#4543]: #4543 [#4553]: #4553 [#4524]: #4524 [#4511]: #4511 [#4567]: #4567 [#4474]: #4474 [#4634]: #4634 [#4548]: #4548 [#4630]: #4630 [#4530]: #4530 [#4640]: #4640 [#4531]: #4531 [#4545]: #4545 [#4507]: #4507 Signed-off-by: Eliza Weisman <[email protected]>
crapStone
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May 1, 2022
This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [tokio](https://tokio.rs) ([source](https://github.com/tokio-rs/tokio)) | dependencies | minor | `1.17.0` -> `1.18.0` | | [tokio](https://tokio.rs) ([source](https://github.com/tokio-rs/tokio)) | dev-dependencies | minor | `1.17.0` -> `1.18.0` | --- ### Release Notes <details> <summary>tokio-rs/tokio</summary> ### [`v1.18.0`](https://github.com/tokio-rs/tokio/releases/tokio-1.18.0) [Compare Source](tokio-rs/tokio@tokio-1.17.0...tokio-1.18.0) ##### 1.18.0 (April 27, 2022) This release adds a number of new APIs in `tokio::net`, `tokio::signal`, and `tokio::sync`. In addition, it adds new unstable APIs to `tokio::task` (`Id`s for uniquely identifying a task, and `AbortHandle` for remotely cancelling a task), as well as a number of bugfixes. ##### Fixed - blocking: add missing `#[track_caller]` for `spawn_blocking` ([#​4616](tokio-rs/tokio#4616)) - macros: fix `select` macro to process 64 branches ([#​4519](tokio-rs/tokio#4519)) - net: fix `try_io` methods not calling Mio's `try_io` internally ([#​4582](tokio-rs/tokio#4582)) - runtime: recover when OS fails to spawn a new thread ([#​4485](tokio-rs/tokio#4485)) ##### Added - macros: support setting a custom crate name for `#[tokio::main]` and `#[tokio::test]` ([#​4613](tokio-rs/tokio#4613)) - net: add `UdpSocket::peer_addr` ([#​4611](tokio-rs/tokio#4611)) - net: add `try_read_buf` method for named pipes ([#​4626](tokio-rs/tokio#4626)) - signal: add `SignalKind` `Hash`/`Eq` impls and `c_int` conversion ([#​4540](tokio-rs/tokio#4540)) - signal: add support for signals up to `SIGRTMAX` ([#​4555](tokio-rs/tokio#4555)) - sync: add `watch::Sender::send_modify` method ([#​4310](tokio-rs/tokio#4310)) - sync: add `broadcast::Receiver::len` method ([#​4542](tokio-rs/tokio#4542)) - sync: add `watch::Receiver::same_channel` method ([#​4581](tokio-rs/tokio#4581)) - sync: implement `Clone` for `RecvError` types ([#​4560](tokio-rs/tokio#4560)) ##### Changed - update `mio` to 0.8.1 ([#​4582](tokio-rs/tokio#4582)) - macros: rename `tokio::select!`'s internal `util` module ([#​4543](tokio-rs/tokio#4543)) - runtime: use `Vec::with_capacity` when building runtime ([#​4553](tokio-rs/tokio#4553)) ##### Documented - improve docs for `tokio_unstable` ([#​4524](tokio-rs/tokio#4524)) - runtime: include more documentation for thread_pool/worker ([#​4511](tokio-rs/tokio#4511)) - runtime: update `Handle::current`'s docs to mention `EnterGuard` ([#​4567](tokio-rs/tokio#4567)) - time: clarify platform specific timer resolution ([#​4474](tokio-rs/tokio#4474)) - signal: document that `Signal::recv` is cancel-safe ([#​4634](tokio-rs/tokio#4634)) - sync: `UnboundedReceiver` close docs ([#​4548](tokio-rs/tokio#4548)) ##### Unstable The following changes only apply when building with `--cfg tokio_unstable`: - task: add `task::Id` type ([#​4630](tokio-rs/tokio#4630)) - task: add `AbortHandle` type for cancelling tasks in a `JoinSet` ([#​4530](tokio-rs/tokio#4530)], \[[#​4640](tokio-rs/tokio#4640)) - task: fix missing `doc(cfg(...))` attributes for `JoinSet` ([#​4531](tokio-rs/tokio#4531)) - task: fix broken link in `AbortHandle` RustDoc ([#​4545](tokio-rs/tokio#4545)) - metrics: add initial IO driver metrics ([#​4507](tokio-rs/tokio#4507)) </details> --- ### Configuration 📅 **Schedule**: 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, click this checkbox. --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). Co-authored-by: cabr2-bot <[email protected]> Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1327 Reviewed-by: crapStone <[email protected]> Co-authored-by: Calciumdibromid Bot <[email protected]> Co-committed-by: Calciumdibromid Bot <[email protected]>
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Handle::currentdocs say it's not possible to call it on any non-runtime thread, but you can call it from a runtime context created by anEnterGuard. This updates the docs to mentionEnterGuardas a way to avoid this panic.