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Cygwin: unlink: allow fallback from POSIX to default method 

Trying to delete in-use executables and DLLs using
FILE_DISPOSITION_POSIX_SEMANTICS returns STATUS_CANNOT_DELETE.
Fall back to the former method if that error occurs to allow
unlinking these files.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2019-02-06 21:17:35 +01:00
parent 5628399c84
commit 9fa22dba55
1 changed files with 5 additions and 1 deletions
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4
winsup/cygwin/syscalls.cc
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@ -733,6 +733,10 @@ unlink_nt (path_conv &pc)
if (pc.file_attributes () & FILE_ATTRIBUTE_READONLY)
NtSetAttributesFile (fh, pc.file_attributes ());
NtClose (fh);
/* Trying to delete in-use executables and DLLs using
FILE_DISPOSITION_POSIX_SEMANTICS returns STATUS_CANNOT_DELETE.
Fall back to the default method. */
if (status != STATUS_CANNOT_DELETE)
goto out;
}