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64 lines
1.6 KiB
64 lines
1.6 KiB
#!/usr/bin/env python3
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import errno
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import os
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import sys
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import tempfile
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from posix_parity import fail
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from posix_parity import join
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def open_tmpfile(dirpath):
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return os.open(dirpath, os.O_TMPFILE | os.O_RDWR, 0o600)
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def errno_of(call):
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try:
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call()
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return 0
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except OSError as exc:
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return exc.errno
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def main():
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if len(sys.argv) != 2:
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print("usage: TEST_posix_tmpfile <mountpoint>", file=sys.stderr)
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return 1
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if not hasattr(os, "O_TMPFILE"):
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return 0
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mount = sys.argv[1]
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with tempfile.TemporaryDirectory() as native:
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merge_dir = join(mount, "posix-tmpfile")
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native_dir = join(native, "posix-tmpfile")
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os.makedirs(merge_dir, exist_ok=True)
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os.makedirs(native_dir, exist_ok=True)
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m_err = errno_of(lambda: open_tmpfile(merge_dir))
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n_err = errno_of(lambda: open_tmpfile(native_dir))
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if m_err != n_err:
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return fail(f"O_TMPFILE support mismatch mergerfs_errno={m_err} native_errno={n_err}")
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# If unsupported on both, treat as skip-pass.
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if m_err in (errno.EOPNOTSUPP, errno.EISDIR, errno.EINVAL, errno.ENOSYS):
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return 0
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mfd = open_tmpfile(merge_dir)
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nfd = open_tmpfile(native_dir)
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try:
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mw = os.write(mfd, b"tmpfile-data")
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nw = os.write(nfd, b"tmpfile-data")
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if mw != nw:
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return fail(f"O_TMPFILE write count mismatch mergerfs={mw} native={nw}")
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finally:
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os.close(mfd)
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os.close(nfd)
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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