Author vstinner
Recipients abacabadabacaba, benhoyt, serhiy.storchaka, vstinner
Date 2017-03-06.09:21:25
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Message-id <1488792086.32.0.62549504492.issue25996@psf.upfronthosting.co.za>
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> I'm wondering is it possible to implement this feature on Windows?

On Windows, scandir() is implemented with FindFirstFile() which takes strings. This function creates a handle which should then be passed to FindNextFile(). There is no similar function taking a directory handle, so it's not possible to implement os.scandir(fd) on Windows.

It seems like the gnulib emulates fdopendir() on Windows, and its documentation contains warnings:
https://www.gnu.org/software/gnulib/manual/html_node/fdopendir.html
"But the replacement function is not safe to be used in libraries and is not multithread-safe. Also, the replacement does not guarantee that ‘dirfd(fdopendir(n))==n’ (dirfd might fail, or return a different file descriptor than n)."
History
Date User Action Args
2017-03-06 09:21:26vstinnersetrecipients: + vstinner, benhoyt, abacabadabacaba, serhiy.storchaka
2017-03-06 09:21:26vstinnersetmessageid: <1488792086.32.0.62549504492.issue25996@psf.upfronthosting.co.za>
2017-03-06 09:21:26vstinnerlinkissue25996 messages
2017-03-06 09:21:25vstinnercreate