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proposal: io: pass WriterTo through Pipe #73312

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hanwen-flow opened this issue Apr 10, 2025 · 1 comment
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proposal: io: pass WriterTo through Pipe #73312

hanwen-flow opened this issue Apr 10, 2025 · 1 comment
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@hanwen-flow
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hanwen-flow commented Apr 10, 2025 •
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Proposal Details

It seems that io.PipeReader could implement WriterTo, such that connecting two files using a io.Pipe (a pattern common inside docker and friends) would use copy_file_range.

I coded up a prototype in https://go-review.googlesource.com/c/go/+/664395. This would add PipeReader.WriteTo.
@gopherbot gopherbot added this to the Proposal milestone Apr 10, 2025
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Jorropo commented Apr 11, 2025

I agree

@Jorropo Jorropo closed this as completed Apr 11, 2025
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