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d6ca62a1d7
Summary: When a file is mmap'ed, removing it will always fail, even with all the rename magic. The only option that works is to ask the OS to remove the file when there is no other file handles to it. In Python, we can use the O_TEMPORARY for that. Reviewed By: quark-zju Differential Revision: D22224572 fbshipit-source-id: bee564a3006c8389f506633da5622aa7a27421ac
21 lines
398 B
Raku
21 lines
398 B
Raku
#chg-compatible
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$ cat <<EOF > mmap-unlink.py
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> import mmap
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> import os
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> import shutil
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>
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> from edenscm.mercurial import util
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>
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> with util.posixfile("file", "w") as f:
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> f.write("CONTENT")
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>
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> with util.posixfile("file", "r+b") as f:
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> m = mmap.mmap(f.fileno(), 0)
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> util.unlink("file")
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> EOF
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$ hg debugpython -- ./mmap-unlink.py
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$ ls
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mmap-unlink.py
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