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C-API: add functions to overwrite stdin / stdout / stderr handlers #3032

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C-API: add functions to overwrite stdin / stdout / stderr handlers #3032

wants to merge 29 commits into from

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epilys
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@epilys epilys commented Jul 21, 2022 •
edited by fschutt
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Fixes #2334

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  • Add functional test for this (important!)
  • Add a short description of the change to the CHANGELOG.md file

@epilys epilys self-assigned this Jul 21, 2022
@fschutt fschutt force-pushed the capi-wasi-overwrite-stdin branch 5 times, most recently from 26db0dd to 298d224 Compare July 26, 2022 13:26
@fschutt fschutt changed the title c-api: add functions to overwrite stdin and to write to it [WIP] C-API: add functions to overwrite stdin / stdout / stderr handlers Jul 26, 2022
@fschutt fschutt marked this pull request as ready for review July 26, 2022 13:31
@fschutt fschutt force-pushed the capi-wasi-overwrite-stdin branch 2 times, most recently from bab041e to cc54f16 Compare August 1, 2022 13:26
@fschutt fschutt mentioned this pull request Aug 2, 2022
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@fschutt fschutt force-pushed the capi-wasi-overwrite-stdin branch 4 times, most recently from 02d678f to 7cbfe50 Compare August 5, 2022 10:16
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fschutt commented Aug 5, 2022

@epilys as you requested, I separated the fixes from clippy and make lint into a new PR, which can be merged after this PR has been merged. The other tests should work, so this PR can be merged now.

patches.zip

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epilys commented Aug 5, 2022

@syrusakbary this needs a manual merge as well

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I think we may need a meeting to discuss this further. I see as an issue that we are operating just in terms of specific structs (STDIN, STDOUT, STDERR), rather than in terms of pipes.

I'd like the API to be pipe based, as I think it will be more resilient also for other kind of filesystem things. Let's discuss

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fschutt commented Aug 5, 2022

You can store pipe objects inside of the structs, the current approach is much more flexible than locking the approach to pipes. I could add code to add a wasi_new_console_out_pipe() to use pipes, if you want, but I wouldn't change the overall API.

@guregu guregu mentioned this pull request Aug 8, 2022
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@epilys epilys closed this Aug 24, 2022
@fschutt fschutt mentioned this pull request Aug 30, 2022
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[c-api] add more functions for stdin/stderr/stdout control
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