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Implement Kernel/Process spawn on Windows #3116

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headius opened this issue Jul 7, 2015 · 1 comment
Open

Implement Kernel/Process spawn on Windows #3116

headius opened this issue Jul 7, 2015 · 1 comment
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@byteit101
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core JRuby 9000 ruby 2.0-2.2 stdlib windows
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Post-9000

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@headius
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headius commented Jul 7, 2015

For #3075, we restored the old non-spawn-based open3.rb for Windows users. That allows popen3 to continue working (as well as it did in 1.7) but it was not really a complete fix. The complete fix would be to get Kernel/Process.spawn working on Windows, so the stock open3.rb could be used.

This will take some effort, considering that there's no posix_spawn on Windows and we'll have to use win32 calls to do it. The code in MRI may be illustrative, but it's a lot to port right now.

Once completed, we should also restore the standard open3.rb rather than using our custom logic.
@headius headius added this to the Post-9000 milestone Jul 7, 2015
headius added a commit that referenced this issue Jul 13, 2015
@headius
Bind builtin popen3 as in 1.7 until #3116. Fixes #3125.
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@RoyTinker
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RoyTinker commented Aug 29, 2016 •
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Just ran into this on 9.1.2.0/Windows/jre8u45. I'm attempting to start a Python subprocess that will proxy requests from the rest of my ruby script, like so:

Open3.popen3('python','proxy.py') do |stdout, stderr, status, thread|
  # todo: read logged proxy port number, start client
end

This is currently erroring with NotImplementedError: waitpid unsupported or native support failed to load; see http://wiki.jruby.org/Native-Libraries. Running with -Xnative.verbose=true logs Successfully loaded native POSIX impl. and no errors other than the one I mentioned.

@headius headius mentioned this issue Mar 27, 2018
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@byteit101 byteit101 self-assigned this Jan 22, 2023
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