tree d662815e370e07d98f83b57fd92c133aed8e632b
parent 93ff8b7fc06cb7cb20a98f2161a32338e9deae15
author Laszlo Csomor <laszlocsomor@google.com> 1556623945 -0700
committer Copybara-Service <copybara-worker@google.com> 1556624016 -0700

Windows: open files with at least read-sharing

If a process opens files without read-sharing
(FILE_SHARE_READ) and that file is symlink or
junction, then other processes can't check whether
the target of it exists.

In particular, if a process opens a file with
CreateProcessW(dwShareMode = 0) then
symlink-following file existence checks (such as
java.nio.file.Files.exists and
java.nio.file.Files.notExists) fail to check if
the symlink's target exists (even if the file is
not a symlink).

Fixes https://github.com/bazelbuild/bazel/issues/7392

Closes #8198.

PiperOrigin-RevId: 245923522