doc: Created a simple example for tokio::process::ChildStdin #4479
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coral
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Darksonn
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ipetkov
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Feb 8, 2022
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Thanks for addressing this @coral, looks great!
Just have one suggestion to add to do the docs. Although this example is technically correct (sort will read all input before sending any output), it may not be the case for all commands, and it may be good to call out explicitly in the example
Co-authored-by: Ivan Petkov <ivanppetkov@gmail.com>
ipetkov
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Feb 8, 2022
hawkw
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Feb 15, 2022
# 1.16.2 (February 15, 2022) This release updates the minimum supported Rust version (MSRV) to 1.49, the `mio` dependency to v0.8, and the (optional) `parking_lot` dependency to v0.12. Additionally, it contains several bug fixes, as well as internal refactoring and performance improvements. ### Fixed - time: prevent panicking in `sleep` with large durations ([#4495]) - time: eliminate potential panics in `Instant` arithmetic on platforms where `Instant::now` is not monotonic ([#4461]) - io: fix `DuplexStream` not participating in cooperative yielding ([#4478]) - rt: fix potential double panic when dropping a `JoinHandle` ([#4430]) ### Changed - update minimum supported Rust version to 1.49 ([#4457]) - update `parking_lot` dependency to v0.12.0 ([#4459]) - update `mio` dependency to v0.8 ([#4449]) - rt: remove an unnecessary lock in the blocking pool ([#4436]) - rt: remove an unnecessary enum in the basic scheduler ([#4462]) - time: use bit manipulation instead of modulo to improve performance ([#4480]) - net: use `std::future::Ready` instead of our own `Ready` future ([#4271]) - replace deprecated `atomic::spin_loop_hint` with `hint::spin_loop` ([#4491]) - fix miri failures in intrusive linked lists ([#4397]) ### Documented - io: add an example for `tokio::process::ChildStdin` ([#4479]) ### Unstable The following changes only apply when building with `--cfg tokio_unstable`: - task: fix missing location information in `tracing` spans generated by `spawn_local` ([#4483]) - task: add `JoinSet` for managing sets of tasks ([#4335]) - metrics: fix compilation error on MIPS ([#4475]) - metrics: fix compilation error on arm32v7 ([#4453]) [#4495]: #4495 [#4461]: #4461 [#4478]: #4478 [#4430]: #4430 [#4457]: #4457 [#4459]: #4459 [#4449]: #4449 [#4462]: #4462 [#4436]: #4436 [#4480]: #4480 [#4271]: #4271 [#4491]: #4491 [#4397]: #4397 [#4479]: #4479 [#4483]: #4483 [#4335]: #4335 [#4475]: #4475 [#4453]: #4453
hawkw
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Feb 16, 2022
# 1.17.0 (February 16, 2022) This release updates the minimum supported Rust version (MSRV) to 1.49, the `mio` dependency to v0.8, and the (optional) `parking_lot` dependency to v0.12. Additionally, it contains several bug fixes, as well as internal refactoring and performance improvements. ### Fixed - time: prevent panicking in `sleep` with large durations ([#4495]) - time: eliminate potential panics in `Instant` arithmetic on platforms where `Instant::now` is not monotonic ([#4461]) - io: fix `DuplexStream` not participating in cooperative yielding ([#4478]) - rt: fix potential double panic when dropping a `JoinHandle` ([#4430]) ### Changed - update minimum supported Rust version to 1.49 ([#4457]) - update `parking_lot` dependency to v0.12.0 ([#4459]) - update `mio` dependency to v0.8 ([#4449]) - rt: remove an unnecessary lock in the blocking pool ([#4436]) - rt: remove an unnecessary enum in the basic scheduler ([#4462]) - time: use bit manipulation instead of modulo to improve performance ([#4480]) - net: use `std::future::Ready` instead of our own `Ready` future ([#4271]) - replace deprecated `atomic::spin_loop_hint` with `hint::spin_loop` ([#4491]) - fix miri failures in intrusive linked lists ([#4397]) ### Documented - io: add an example for `tokio::process::ChildStdin` ([#4479]) ### Unstable The following changes only apply when building with `--cfg tokio_unstable`: - task: fix missing location information in `tracing` spans generated by `spawn_local` ([#4483]) - task: add `JoinSet` for managing sets of tasks ([#4335]) - metrics: fix compilation error on MIPS ([#4475]) - metrics: fix compilation error on arm32v7 ([#4453]) [#4495]: #4495 [#4461]: #4461 [#4478]: #4478 [#4430]: #4430 [#4457]: #4457 [#4459]: #4459 [#4449]: #4449 [#4462]: #4462 [#4436]: #4436 [#4480]: #4480 [#4271]: #4271 [#4491]: #4491 [#4397]: #4397 [#4479]: #4479 [#4483]: #4483 [#4335]: #4335 [#4475]: #4475 [#4453]: #4453
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Motivation
I struggled with figuring out how to effectively use
ChildStdinin tokio::process . There are a lot of examples on how to capturestdoutbut only one combined example with stdin which focuses more on chaining. I've found this more well documented in other languages (Go, Python).Solution
I created a quick example which showcases how to write to
stdinbut also highlighting that the user needs to drop the handle for EOF to be signaled.Closes: #4477