Update Rust crate tokio to v1 [SECURITY]

[renovate]

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	dev-dependencies	major	0.2 → 1.0

---

tokio::io::ReadHalf<T>::unsplit is Unsound

GHSA-4q83-7cq4-p6wg

More information

Details

tokio::io::ReadHalf<T>::unsplit can violate the Pin contract

The soundness issue is described in the tokio/issues#5372

Specific set of conditions needed to trigger an issue (a !Unpin type in ReadHalf)
is unusual, combined with the difficulty of making any arbitrary use-after-free
exploitable in Rust without doing a lot of careful alignment of data types in
the surrounding code.

The tokio feature io-util is also required to be enabled to trigger this
soundness issue.

Thanks to zachs18 reporting the issue to Tokio team responsibly and taiki-e
and carllerche appropriately responding and fixing the soundness bug.

Tokio before 0.2.0 used futures 0.1 that did not have Pin, so it is not
affected by this issue.

Severity

Low

References

• https://github.com/tokio-rs/tokio/issues/5372
• https://rustsec.org/advisories/RUSTSEC-2023-0005.html
• https://github.com/advisories/GHSA-4q83-7cq4-p6wg

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Race Condition in tokio

CVE-2021-45710 / GHSA-fg7r-2g4j-5cgr

More information

Details

If a tokio::sync::oneshot channel is closed (via the oneshot::Receiver::close method), a data race may occur if the oneshot::Sender::send method is called while the corresponding oneshot::Receiver is awaited or calling try_recv.

When these methods are called concurrently on a closed channel, the two halves of the channel can concurrently access a shared memory location, resulting in a data race. This has been observed to cause memory corruption.

Note that the race only occurs when both halves of the channel are used after the Receiver half has called close. Code where close is not used, or where the Receiver is not awaited and try_recv is not called after calling close, is not affected.

Severity

• CVSS Score: 8.1 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-45710
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-0124.md
• https://rustsec.org/advisories/RUSTSEC-2021-0124.html
• https://github.com/tokio-rs/tokio/issues/4225
• https://github.com/advisories/GHSA-fg7r-2g4j-5cgr

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Tokio broadcast channel calls clone in parallel, but does not require Sync

GHSA-rr8g-9fpq-6wmg

More information

Details

The broadcast channel internally calls clone on the stored value when receiving it, and only requires T:Send. This means that using the broadcast channel with values that are Send but not Sync can trigger unsoundness if the clone implementation makes use of the value being !Sync.

Thank you to Austin Bonander for finding and reporting this issue.

Severity

• CVSS Score: 2.7 / 10 (Low)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U

References

• https://github.com/tokio-rs/tokio/pull/7232
• https://github.com/tokio-rs/tokio
• https://rustsec.org/advisories/RUSTSEC-2025-0023.html
• https://github.com/advisories/GHSA-rr8g-9fpq-6wmg

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

tokio-rs/tokio (tokio)

v1.38.2: Tokio v1.38.2

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This release fixes a soundness issue in the broadcast channel. The channel accepts values that are Send but !Sync. Previously, the channel called clone() on these values without synchronizing. This release fixes the channel by synchronizing calls to .clone() (Thanks Austin Bonander for finding and reporting the issue).

Fixed

• sync: synchronize clone() call in broadcast channel (#​7232)

v1.38.1: Tokio v1.38.1

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1.38.1 (July 16th, 2024)

This release fixes the bug identified as (#​6682), which caused timers not
to fire when they should.

Fixed

• time: update wake_up while holding all the locks of sharded time wheels (#​6683)

v1.38.0: Tokio v1.38.0

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This release marks the beginning of stabilization for runtime metrics. It
stabilizes RuntimeMetrics::worker_count. Future releases will continue to
stabilize more metrics.

Added

• fs: add File::create_new (#​6573)
• io: add copy_bidirectional_with_sizes (#​6500)
• io: implement AsyncBufRead for Join (#​6449)
• net: add Apple visionOS support (#​6465)
• net: implement Clone for NamedPipeInfo (#​6586)
• net: support QNX OS (#​6421)
• sync: add Notify::notify_last (#​6520)
• sync: add mpsc::Receiver::{capacity,max_capacity} (#​6511)
• sync: add split method to the semaphore permit (#​6472, #​6478)
• task: add tokio::task::join_set::Builder::spawn_blocking (#​6578)
• wasm: support rt-multi-thread with wasm32-wasi-preview1-threads (#​6510)

Changed

• macros: make #[tokio::test] append #[test] at the end of the attribute list (#​6497)
• metrics: fix blocking_threads count (#​6551)
• metrics: stabilize RuntimeMetrics::worker_count (#​6556)
• runtime: move task out of the lifo_slot in block_in_place (#​6596)
• runtime: panic if global_queue_interval is zero (#​6445)
• sync: always drop message in destructor for oneshot receiver (#​6558)
• sync: instrument Semaphore for task dumps (#​6499)
• sync: use FIFO ordering when waking batches of wakers (#​6521)
• task: make LocalKey::get work with Clone types (#​6433)
• tests: update nix and mio-aio dev-dependencies (#​6552)
• time: clean up implementation (#​6517)
• time: lazily init timers on first poll (#​6512)
• time: remove the true_when field in TimerShared (#​6563)
• time: use sharding for timer implementation (#​6534)

Fixed

• taskdump: allow building taskdump docs on non-unix machines (#​6564)
• time: check for overflow in Interval::poll_tick (#​6487)
• sync: fix incorrect is_empty on mpsc block boundaries (#​6603)

Documented

• fs: rewrite file system docs (#​6467)
• io: fix stdin documentation (#​6581)
• io: fix obsolete reference in ReadHalf::unsplit() documentation (#​6498)
• macros: render more comprehensible documentation for select! (#​6468)
• net: add missing types to module docs (#​6482)
• net: fix misleading NamedPipeServer example (#​6590)
• sync: add examples for SemaphorePermit, OwnedSemaphorePermit (#​6477)
• sync: document that Barrier::wait is not cancel safe (#​6494)
• sync: explain relation between watch::Sender::{subscribe,closed} (#​6490)
• task: clarify that you can't abort spawn_blocking tasks (#​6571)
• task: fix a typo in doc of LocalSet::run_until (#​6599)
• time: fix test-util requirement for pause and resume in docs (#​6503)

v1.37.0: Tokio v1.37.0

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1.37.0 (March 28th, 2024)

Added

• fs: add set_max_buf_size to tokio::fs::File (#​6411)
• io: add try_new and try_with_interest to AsyncFd (#​6345)
• sync: add forget_permits method to semaphore (#​6331)
• sync: add is_closed, is_empty, and len to mpsc receivers (#​6348)
• sync: add a rwlock() method to owned RwLock guards (#​6418)
• sync: expose strong and weak counts of mpsc sender handles (#​6405)
• sync: implement Clone for watch::Sender (#​6388)
• task: add TaskLocalFuture::take_value (#​6340)
• task: implement FromIterator for JoinSet (#​6300)

Changed

• io: make io::split use a mutex instead of a spinlock (#​6403)

Fixed

• docs: fix docsrs build without net feature (#​6360)
• macros: allow select with only else branch (#​6339)
• runtime: fix leaking registration entries when os registration fails (#​6329)

Documented

• io: document cancel safety of AsyncBufReadExt::fill_buf (#​6431)
• io: document cancel safety of AsyncReadExt's primitive read functions (#​6337)
• runtime: add doc link from Runtime to #[tokio::main] (#​6366)
• runtime: make the enter example deterministic (#​6351)
• sync: add Semaphore example for limiting the number of outgoing requests (#​6419)
• sync: fix missing period in broadcast docs (#​6377)
• sync: mark mpsc::Sender::downgrade with #[must_use] (#​6326)
• sync: reorder const_new before new_with (#​6392)
• sync: update watch channel docs (#​6395)
• task: fix documentation links (#​6336)

Changed (unstable)

• runtime: include task Id in taskdumps (#​6328)
• runtime: panic if unhandled_panic is enabled when not supported (#​6410)

v1.36.0: Tokio v1.36.0

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1.36.0 (February 2nd, 2024)

Added

• io: add tokio::io::Join (#​6220)
• io: implement AsyncWrite for Empty (#​6235)
• net: add support for anonymous unix pipes (#​6127)
• net: add UnixSocket (#​6290)
• net: expose keepalive option on TcpSocket (#​6311)
• sync: add {Receiver,UnboundedReceiver}::poll_recv_many (#​6236)
• sync: add Sender::{try_,}reserve_many (#​6205)
• sync: add watch::Receiver::mark_unchanged (#​6252)
• task: add JoinSet::try_join_next (#​6280)

Changed

• io: make copy cooperative (#​6265)
• io: make repeat and sink cooperative (#​6254)
• io: simplify check for empty slice (#​6293)
• process: use pidfd on Linux when available (#​6152)
• sync: use AtomicBool in broadcast channel future (#​6298)

Documented

• io: clarify clear_ready docs (#​6304)
• net: document that *Fd traits on TcpSocket are unix-only (#​6294)
• sync: document FIFO behavior of tokio::sync::Mutex (#​6279)
• chore: typographic improvements (#​6262)
• runtime: remove obsolete comment (#​6303)
• task: fix typo (#​6261)

v1.35.1: Tokio v1.35.1

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1.35.1 (December 19, 2023)

This is a forward part of a change that was backported to 1.25.3.

Fixed

• io: add budgeting to tokio::runtime::io::registration::async_io (#​6221)

v1.35.0: Tokio v1.35.0

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1.35.0 (December 8th, 2023)

Added

• net: add Apple watchOS support (#​6176)

Changed

• io: drop the Sized requirements from AsyncReadExt.read_buf (#​6169)
• runtime: make Runtime unwind safe (#​6189)
• runtime: reduce the lock contention in task spawn (#​6001)
• tokio: update nix dependency to 0.27.1 (#​6190)

Fixed

• chore: make --cfg docsrs work without net feature (#​6166)
• chore: use relaxed load for unsync_load on miri (#​6179)
• runtime: handle missing context on wake (#​6148)
• taskdump: fix taskdump cargo config example (#​6150)
• taskdump: skip notified tasks during taskdumps (#​6194)
• tracing: avoid creating resource spans with current parent, use a None parent instead (#​6107)
• tracing: make task span explicit root (#​6158)

Documented

• io: flush in AsyncWriteExt examples (#​6149)
• runtime: document fairness guarantees and current behavior (#​6145)
• task: document cancel safety of LocalSet::run_until (#​6147)

v1.34.0: Tokio v1.34.0

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Fixed

• io: allow clear_readiness after io driver shutdown (#​6067)
• io: fix integer overflow in take (#​6080)
• io: fix I/O resource hang (#​6134)
• sync: fix broadcast::channel link (#​6100)

Changed

• macros: use ::core qualified imports instead of ::std inside tokio::test macro (#​5973)

Added

• fs: update cfg attr in fs::read_dir to include aix (#​6075)
• sync: add mpsc::Receiver::recv_many (#​6010)
• tokio: added vita target support (#​6094)

v1.33.0: Tokio v1.33.0

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1.33.0 (October 9, 2023)

Fixed

• io: mark Interest::add with #[must_use] (#​6037)
• runtime: fix cache line size for RISC-V (#​5994)
• sync: prevent lock poisoning in watch::Receiver::wait_for (#​6021)
• task: fix spawn_local source location (#​5984)

Changed

• sync: use Acquire/Release orderings instead of SeqCst in watch (#​6018)

Added

• fs: add vectored writes to tokio::fs::File (#​5958)
• io: add Interest::remove method (#​5906)
• io: add vectored writes to DuplexStream (#​5985)
• net: add Apple tvOS support (#​6045)
• sync: add ?Sized bound to {MutexGuard,OwnedMutexGuard}::map (#​5997)
• sync: add watch::Receiver::mark_unseen (#​5962, #​6014, #​6017)
• sync: add watch::Sender::new (#​5998)
• sync: add const fn OnceCell::from_value (#​5903)

Removed

• remove unused stats feature (#​5952)

Documented

• add missing backticks in code examples (#​5938, #​6056)
• fix typos (#​5988, #​6030)
• process: document that Child::wait is cancel safe (#​5977)
• sync: add examples for Semaphore (#​5939, #​5956, #​5978, #​6031, #​6032, #​6050)
• sync: document that broadcast capacity is a lower bound (#​6042)
• sync: document that const_new is not instrumented (#​6002)
• sync: improve cancel-safety documentation for mpsc::Sender::send (#​5947)
• sync: improve docs for watch channel (#​5954)
• taskdump: render taskdump documentation on docs.rs (#​5972)

Unstable

• taskdump: fix potential deadlock (#​6036)

v1.32.1: Tokio v1.32.1

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1.32.1 (December 19, 2023)

This is a forward part of a change that was backported to 1.25.3.

Fixed

• io: add budgeting to tokio::runtime::io::registration::async_io (#​6221)

v1.32.0: Tokio v1.32.0

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Fixed

• sync: fix potential quadratic behavior in broadcast::Receiver (#​5925)

Added

• process: stabilize Command::raw_arg (#​5930)
• io: enable awaiting error readiness (#​5781)

Unstable

• rt(alt): improve the scalability of alt runtime as the number of cores grows (#​5935)

v1.31.0: Tokio v1.31.0

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Fixed

• io: delegate WriteHalf::poll_write_vectored (#​5914)

Unstable

• rt(unstable): fix memory leak in unstable next-gen scheduler prototype (#​5911)
• rt: expose mean task poll time metric (#​5927)

v1.30.0: Tokio v1.30.0

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1.30.0 (August 9, 2023)

This release bumps the MSRV of Tokio to 1.63. (#​5887)

Changed

• tokio: reduce LLVM code generation (#​5859)
• io: support --cfg mio_unsupported_force_poll_poll flag (#​5881)
• sync: make const_new methods always available (#​5885)
• sync: avoid false sharing in mpsc channel (#​5829)
• rt: pop at least one task from inject queue (#​5908)

Added

• sync: add broadcast::Sender::new (#​5824)
• net: implement UCred for espidf (#​5868)
• fs: add File::options() (#​5869)
• time: implement extra reset variants for Interval (#​5878)
• process: add {ChildStd*}::into_owned_{fd, handle} (#​5899)

Removed

• tokio: removed unused tokio_* cfgs (#​5890)
• remove build script to speed up compilation (#​5887)

Documented

• sync: mention lagging in docs for broadcast::send (#​5820)
• runtime: expand on sharing runtime docs (#​5858)
• io: use vec in example for AsyncReadExt::read_exact (#​5863)
• time: mark Sleep as !Unpin in docs (#​5916)
• process: fix raw_arg not showing up in docs (#​5865)

Unstable

• rt: add runtime ID (#​5864)
• rt: initial implementation of new threaded runtime (#​5823)

v1.29.1: Tokio v1.29.1

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Fixed

• rt: fix nesting two block_in_place with a block_on between (#​5837)

v1.29.0: Tokio v1.29.0

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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)

v1.28.2: Tokio v1.28.2

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1.28.2 (May 28, 2023)

Forward ports 1.18.6 changes.

Fixed

• deps: disable default features for mio (#​5728)

v1.28.1: Tokio v1.28.1

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1.28.1 (May 10th, 2023)

This release fixes a mistake in the build script that makes AsFd implementations unavailable on Rust 1.63. (#​5677)

v1.28.0: Tokio v1.28.0

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1.28.0 (April 25th, 2023)

Added

• io: add AsyncFd::async_io (#​5542)
• io: impl BufMut for ReadBuf (#​5590)
• net: add recv_buf for UdpSocket and UnixDatagram (#​5583)
• sync: add OwnedSemaphorePermit::semaphore (#​5618)
• sync: add same_channel to broadcast channel (#​5607)
• sync: add watch::Receiver::wait_for (#​5611)
• task: add JoinSet::spawn_blocking and JoinSet::spawn_blocking_on (#​5612)

Changed

• deps: update windows-sys to 0.48 (#​5591)
• io: make read_to_end not grow unnecessarily (#​5610)
• macros: make entrypoints more efficient (#​5621)
• sync: improve Debug impl for RwLock (#​5647)
• sync: reduce contention in Notify (#​5503)

Fixed

• net: support get_peer_cred on AIX (#​5065)
• sync: avoid deadlocks in broadcast with custom wakers (#​5578)

Documented

• sync: fix typo in Semaphore::MAX_PERMITS (#​5645)
• sync: fix typo in tokio::sync::watch::Sender docs (#​5587)

v1.27.0: Tokio v1.27.0

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1.27.0 (March 27th, 2023)

This release bumps the MSRV of Tokio to 1.56. (#​5559)

Added

• io: add async_io helper method to sockets (#​5512)
• io: add implementations of AsFd/AsHandle/AsSocket (#​5514, #​5540)
• net: add UdpSocket::peek_sender() (#​5520)
• sync: add RwLockWriteGuard::{downgrade_map, try_downgrade_map} (#​5527)
• task: add JoinHandle::abort_handle (#​5543)

Changed

• io: use memchr from libc (#​5558)
• macros: accept path as crate rename in #[tokio::main] (#​5557)
• macros: update to syn 2.0.0 (#​5572)
• time: don't register for a wakeup when Interval returns Ready (#​5553)

Fixed

• fs: fuse std iterator in ReadDir (#​5555)
• tracing: fix spawn_blocking location fields (#​5573)
• time: clean up redundant check in Wheel::poll() (#​5574)

Documented

• macros: define cancellation safety (#​5525)
• io: add details to docs of tokio::io::copy[_buf] (#​5575)
• io: refer to ReaderStream and StreamReader in module docs (#​5576)

v1.26.0: Tokio v1.26.0

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Fixed

• macros: fix empty join! and try_join! ([https://github.com/tokio-rs/tokio/pull/5504])
• sync: don't leak tracing spans in mutex guards ([https://github.com/tokio-rs/tokio/pull/5469])
• sync: drop wakers after unlocking the mutex in Notify ([https://github.com/tokio-rs/tokio/pull/5471])
• sync: drop wakers outside lock in semaphore ([https://github.com/tokio-rs/tokio/pull/5475])

Added

• fs: add fs::try_exists ([https://github.com/tokio-rs/tokio/pull/4299])
• net: add types for named unix pipes ([https://github.com/tokio-rs/tokio/pull/5351])
• sync: add MappedOwnedMutexGuard ([https://github.com/tokio-rs/tokio/pull/5474])

Changed

• chore: update windows-sys to 0.45 ([https://github.com/tokio-rs/tokio/pull/5386])
• net: use Message Read Mode for named pipes ([https://github.com/tokio-rs/tokio/pull/5350])
• sync: mark lock guards with #[clippy::has_significant_drop] ([https://github.com/tokio-rs/tokio/pull/5422])
• sync: reduce contention in watch channel ([https://github.com/tokio-rs/tokio/pull/5464])
• time: remove cache padding in timer entries ([https://github.com/tokio-rs/tokio/pull/5468])
• time: Improve Instant::now() perf with test-util ([https://github.com/tokio-rs/tokio/pull/5513])

Internal Changes

• io: use poll_fn in copy_bidirectional ([https://github.com/tokio-rs/tokio/pull/5486])
• net: refactor named pipe builders to not use bitfields ([https://github.com/tokio-rs/tokio/pull/5477])
• rt: remove Arc from Clock ([https://github.com/tokio-rs/tokio/pull/5434])
• sync: make notify_waiters calls atomic ([https://github.com/tokio-rs/tokio/pull/5458])
• time: don't store deadline twice in sleep entries ([https://github.com/tokio-rs/tokio/pull/5410])

Unstable

• metrics: add a new metric for budget exhaustion yields ([https://github.com/tokio-rs/tokio/pull/5517])

Documented

• io: improve AsyncFd example ([https://github.com/tokio-rs/tokio/pull/5481])
• runtime: document the nature of the main future ([https://github.com/tokio-rs/tokio/pull/5494])
• runtime: remove extra period in docs ([https://github.com/tokio-rs/tokio/pull/5511])
• signal: updated Documentation for Signals ([https://github.com/tokio-rs/tokio/pull/5459])
• sync: add doc aliases for blocking_* methods ([https://github.com/tokio-rs/tokio/pull/5448])
• sync: fix docs for Send/Sync bounds in broadcast ([https://github.com/tokio-rs/tokio/pull/5480])
• sync: document drop behavior for channels ([https://github.com/tokio-rs/tokio/pull/5497])
• task: clarify what happens to spawned work during runtime shutdown ([https://github.com/tokio-rs/tokio/pull/5394])
• task: clarify process::Command docs ([https://github.com/tokio-rs/tokio/pull/5413])
• task: fix wording with 'unsend' ([https://github.com/tokio-rs/tokio/pull/5452])
• time: document immediate completion guarantee for timeouts ([https://github.com/tokio-rs/tokio/pull/5509])
• tokio: document supported platforms ([https://github.com/tokio-rs/tokio/pull/5483])

v1.25.3: Tokio v1.25.3

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1.25.3 (December 17th, 2023)

Fixed

• io: add budgeting to tokio::runtime::io::registration::async_io (#​6221)

v1.25.2: Tokio v1.25.2

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1.25.2 (September 22, 2023)

Forward ports 1.20.6 changes.

Changed

• io: use memchr from libc (#​5960)

v1.25.1: Tokio v1.25.1

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1.25.1 (May 28, 2023)

Forward ports 1.18.6 changes.

Fixed

• deps: disable default features for mio (#​5728)

v1.25.0: Tokio v1.25.0

1.25.0 (January 28, 2023)

Fixed

• rt: fix runtime metrics reporting (#​5330)

Added

• sync: add broadcast::Sender::len (#​5343)

Changed

• fs: increase maximum read buffer size to 2MiB (#​5397)

v1.24.1: Tokio v1.24.1

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This release fixes a compilation failure on targets without AtomicU64 when using rustc older than 1.63. (#​5356)

v1.24.0: Tokio v1.24.0

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The highlight of this release is the reduction of lock contention for all I/O operations (#​5300). We have received reports of up to a 20% improvement in CPU utilization and increased throughput for real-world I/O heavy applications.

Fixed

• rt: improve native AtomicU64 support detection (#​5284)

Added

• rt: add configuration option for max number of I/O events polled from the OS
  per tick (#​5186)
• rt: add an environment variable for configuring the default number of worker
  threads per runtime instance (#​4250)

Changed

• sync: reduce MPSC channel stack usage (#​5294)
• io: reduce lock contention in I/O operations (#​5300)
• fs: speed up read_dir() by chunking operations (#​5309)
• rt: use internal ThreadId implementation (#​5329)
• test: don't auto-advance time when a spawn_blocking task is running (#​5115)

v1.23.1: Tokio v1.23.1

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This release forward ports changes from 1.18.4.

Fixed

• net: fix Windows named pipe server builder to maintain option when toggling
  pipe mode (#​5336).

v1.23.0: Tokio v1.23.0

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Fixed

• net: fix Windows named pipe connect (#​5208)
• io: support vectored writes for ChildStdin (#​5216)
• io: fix async fn ready() false positive for OS-specific events (#​5231)

Changed

• runtime: yield_now defers task until after driver poll (#​5223)
• runtime: reduce amount of codegen needed per spawned task (#​5213)
• windows: replace winapi dependency with windows-sys (#​5204)

v1.22.0: Tokio v1.22.0

Compare Source

Added

• runtime: add Handle::runtime_flavor ([#​5138])
• sync: add Mutex::blocking_lock_owned ([#​5130])
• sync: add Semaphore::MAX_PERMITS ([#​5144])
• sync: add merge() to semaphore permits ([#​4948])
• sync: add mpsc::WeakUnboundedSender ([#​5189])

Added (unstable)

• process: add Command::process_group ([#​5114])
• runtime: export metrics about the blocking thread pool ([#​5161])
• task: add task::id() and task::try_id() ([#​5171])

Fixed

• macros: don't take ownership of futures in macros ([#​5087])
• runtime: fix Stacked Borrows violation in LocalOwnedTasks ([#​5099])
• runtime: mitigate ABA with 32-bit queue indices when possible ([#​5042])
• task: wake local tasks to the local queue when woken by the same thread ([#​5095])
• time: panic in release mode when mark_pending called illegally ([#​5093])
• runtime: fix typo in expect message ([#​5169])
• runtime: fix unsync_load on atomic types ([#​5175])
• task: elaborate safety comments in task deallocation ([#​5172])
• runtime: fix LocalSet drop in thread l

✂ Note

PR body was truncated to here.

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[renovate]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
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• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path raiden-sqs/Cargo.toml --package tokio@0.2.22 --precise 1.18.5
    Updating crates.io index
error: failed to select a version for the requirement `tokio = "^0.2"`
candidate versions found which didn't match: 1.18.5
location searched: crates.io index
required by package `rusoto_core v0.45.0`
    ... which satisfies dependency `rusoto_core_default = "^0.45.0"` (locked to 0.45.0) of package `raiden-sqs v0.0.0 (/tmp/renovate/repos/github/raiden-rs/raiden-sqs/raiden-sqs)`
perhaps a crate was updated and forgotten to be re-vendored?