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55 lines
1.5 KiB
55 lines
1.5 KiB
#!/usr/bin/env python3
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import os
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import select
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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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from posix_parity import touch
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def poll_mask(fd, timeout_ms=25):
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p = select.poll()
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p.register(fd, select.POLLIN | select.POLLOUT | select.POLLERR | select.POLLHUP)
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events = p.poll(timeout_ms)
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mask = 0
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for _fd, ev in events:
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mask |= ev
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return mask
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def main():
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if len(sys.argv) != 2:
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print("usage: TEST_posix_poll <mountpoint>", file=sys.stderr)
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return 1
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mount = sys.argv[1]
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with tempfile.TemporaryDirectory() as native:
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merge_file = join(mount, "posix-poll/file")
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native_file = join(native, "posix-poll/file")
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touch(merge_file, b"abcdef")
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touch(native_file, b"abcdef")
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mfd = os.open(merge_file, os.O_RDONLY)
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nfd = os.open(native_file, os.O_RDONLY)
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try:
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mmask = poll_mask(mfd)
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nmask = poll_mask(nfd)
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# For regular files POLLIN and POLLOUT are typically ready.
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if bool(mmask & select.POLLIN) != bool(nmask & select.POLLIN):
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return fail(f"poll POLLIN mismatch mergerfs_mask=0x{mmask:x} native_mask=0x{nmask:x}")
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if bool(mmask & select.POLLOUT) != bool(nmask & select.POLLOUT):
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return fail(f"poll POLLOUT mismatch mergerfs_mask=0x{mmask:x} native_mask=0x{nmask:x}")
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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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