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Introduce a tokio-sync crate containing useful synchronization primitives for programs written using Tokio. The initial release contains: * An mpsc channel * A oneshot channel * A semaphore implementation * An `AtomicTask` primitive. The `oneshot` and `mpsc` channels are new implementations providing improved performance characteristics. In some benchmarks, the new mpsc channel shows up to 7x improvement over the version provided by the `futures` crate. Unfortunately, the `oneshot` implementation only provides a slight performance improvement as it is mostly limited by the `futures` 0.1 task system. Once updated to the `std` version of `Future` (currently nightly only), much greater performance improvements should be achievable by `oneshot`. Additionally, he implementations provided here are checked using [Loom](http://github.com/carllerche/loom/), which provides greater confidence of correctness.
26 lines
1.0 KiB
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26 lines
1.0 KiB
Plaintext
Copyright (c) 2019 Tokio Contributors
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Permission is hereby granted, free of charge, to any
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person obtaining a copy of this software and associated
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documentation files (the "Software"), to deal in the
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Software without restriction, including without
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limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software
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is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice
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shall be included in all copies or substantial portions
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of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
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ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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