process: add example for reading Child stdout
#7141
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maminrayej
added
T-docs
Darksonn
reviewed
Feb 7, 2025
Comment on lines
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| /// let mut stdout = child.stdout.take().expect("stdout is not captured"); | ||
| /// let mut buff = Vec::new(); | ||
| /// let wait_for_output = join(child.wait(), stdout.read_to_end(&mut buff)); | ||
| /// | ||
| /// tokio::select! { | ||
| /// _ = wait_for_output => {} | ||
| /// _ = rx => child.kill().await.expect("kill failed"), | ||
| /// } | ||
| /// | ||
| /// assert_eq!(buff, b"Hello World!\n"); | ||
| /// } |
There was a problem hiding this comment.
I think what I would recommend is that you read the output from a background task. Something along these lines:
let stdout_task = tokio::spawn(async { /* read stdout here */ });
tokio::select! {
_ = child.wait() => {},
_ = kill_signal => child.kill().await?,
};
let output = stdout_task.await?;
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Resolves #7138.