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#!/usr/bin/env python3
import ctypes
import os
import sys
import tempfile
from posix_parity import fail
from posix_parity import join
from posix_parity import touch
libc = ctypes.CDLL(None, use_errno=True)
libc.opendir.argtypes = [ctypes.c_char_p]
libc.opendir.restype = ctypes.c_void_p
libc.dirfd.argtypes = [ctypes.c_void_p]
libc.dirfd.restype = ctypes.c_int
libc.closedir.argtypes = [ctypes.c_void_p]
libc.closedir.restype = ctypes.c_int
def opendir(path):
ctypes.set_errno(0)
dp = libc.opendir(path.encode())
if not dp:
err = ctypes.get_errno()
raise OSError(err, os.strerror(err), path)
return dp
def close_and_dirfd_errno(path):
dp = opendir(path)
fd = libc.dirfd(dp)
if fd < 0:
libc.closedir(dp)
raise OSError(ctypes.get_errno(), "dirfd failed", path)
rv = libc.closedir(dp)
if rv != 0:
raise OSError(ctypes.get_errno(), "closedir failed", path)
try:
os.fstat(fd)
return 0
except OSError as exc:
return exc.errno
def main():
if len(sys.argv) != 2:
print("usage: TEST_posix_releasedir <mountpoint>", file=sys.stderr)
return 1
mount = sys.argv[1]
with tempfile.TemporaryDirectory() as native:
merge_dir = join(mount, "posix-releasedir/dir")
native_dir = join(native, "posix-releasedir/dir")
touch(join(merge_dir, "a"), b"x")
touch(join(native_dir, "a"), b"x")
m_err = close_and_dirfd_errno(merge_dir)
n_err = close_and_dirfd_errno(native_dir)
if m_err != n_err:
return fail(f"releasedir EBADF parity mismatch mergerfs_errno={m_err} native_errno={n_err}")
return 0
if __name__ == "__main__":
raise SystemExit(main())