[ruby-core:124811] [Ruby Feature#21878] More file types: DOOR, PORT, WHITEOUT

[ruby-core:124811] [Ruby Feature#21878] More file types: DOOR, PORT, WHITEOUT

[nobu (Nobuyoshi Nakada) via ruby-core]

Issue #21878 has been reported by nobu (Nobuyoshi Nakada).

----------------------------------------
Feature #21878: More file types: DOOR, PORT, WHITEOUT
https://bugs.ruby-lang.org/issues/21878

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
----------------------------------------
I found recent Python supports these file types:
[S_ISDOOR](https://docs.python.org/3.14/library/stat.html#stat.S_ISDOOR)
[S_ISPORT](https://docs.python.org/3.14/library/stat.html#stat.S_ISPORT)
[S_ISWHT](https://docs.python.org/3.14/library/stat.html#stat.S_ISWHT)
even they [return `False` always](https://github.com/python/cpython/blob/3.14/Lib/stat.py#L78-L88).

What about supporting them in Ruby?



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[ruby-core:124813] [Ruby Feature#21878] More file types: DOOR, PORT, WHITEOUT

[Eregon (Benoit Daloze) via ruby-core]

Issue #21878 has been updated by Eregon (Benoit Daloze).


Is there any OS/platform supporting those?

----------------------------------------
Feature #21878: More file types: DOOR, PORT, WHITEOUT
https://bugs.ruby-lang.org/issues/21878#change-116433

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
----------------------------------------
I found recent Python supports these file types:
[S_ISDOOR](https://docs.python.org/3.14/library/stat.html#stat.S_ISDOOR)
[S_ISPORT](https://docs.python.org/3.14/library/stat.html#stat.S_ISPORT)
[S_ISWHT](https://docs.python.org/3.14/library/stat.html#stat.S_ISWHT)
even they [return `False` always](https://github.com/python/cpython/blob/3.14/Lib/stat.py#L78-L88).

What about supporting them in Ruby?

[GH-16167](https://github.com/ruby/ruby/pull/16167)



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[ruby-core:124816] [Ruby Feature#21878] More file types: DOOR, PORT, WHITEOUT

[trinistr (Alexander Bulancov) via ruby-core]

Issue #21878 has been updated by trinistr (Alexander Bulancov).


[Doors](https://en.wikipedia.org/wiki/Doors_(computing)) are a thing on Solaris.
Event ports are also [reportedly](https://runebook.dev/en/docs/python/library/stat/stat.S_ISPORT) a Solaris thing, but all references seem to be about the Python feature. `S_ISPORT` macro doesn't exist on my Linux system.
[Whiteouts](https://docs.kernel.org/filesystems/overlayfs.html#whiteouts-and-opaque-directories) are used for unionfs-like file systems, but [SO claims](https://stackoverflow.com/a/62582243) that official Linux FSs don't use this type.

----------------------------------------
Feature #21878: More file types: DOOR, PORT, WHITEOUT
https://bugs.ruby-lang.org/issues/21878#change-116436

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
----------------------------------------
I found recent Python supports these file types:
[S_ISDOOR](https://docs.python.org/3.14/library/stat.html#stat.S_ISDOOR)
[S_ISPORT](https://docs.python.org/3.14/library/stat.html#stat.S_ISPORT)
[S_ISWHT](https://docs.python.org/3.14/library/stat.html#stat.S_ISWHT)
even they [return `False` always](https://github.com/python/cpython/blob/3.14/Lib/stat.py#L78-L88).

What about supporting them in Ruby?

[GH-16167](https://github.com/ruby/ruby/pull/16167)



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[ruby-core:124818] [Ruby Feature#21878] More file types: DOOR, PORT, WHITEOUT

[alanwu (Alan Wu) via ruby-core]

Issue #21878 has been updated by alanwu (Alan Wu).


Solaris mentioned, so I'm bringing up illumos. Ruby has an [OpenIndiana](https://www.ruby-lang.org/en/documentation/installation/#openindiana) port, so this could be tested there :P

https://illumos.org/man/3C/door_create


----------------------------------------
Feature #21878: More file types: DOOR, PORT, WHITEOUT
https://bugs.ruby-lang.org/issues/21878#change-116439

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
----------------------------------------
I found recent Python supports these file types:
[S_ISDOOR](https://docs.python.org/3.14/library/stat.html#stat.S_ISDOOR)
[S_ISPORT](https://docs.python.org/3.14/library/stat.html#stat.S_ISPORT)
[S_ISWHT](https://docs.python.org/3.14/library/stat.html#stat.S_ISWHT)
even they [return `False` always](https://github.com/python/cpython/blob/3.14/Lib/stat.py#L78-L88).

What about supporting them in Ruby?

[GH-16167](https://github.com/ruby/ruby/pull/16167)



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