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- # NOTE: win32 support is currently experimental, and not recommended
- # for production use.
- import ctypes
- import ctypes.wintypes
- # See: http://msdn.microsoft.com/en-us/library/ms724935(VS.85).aspx
- SetHandleInformation = ctypes.windll.kernel32.SetHandleInformation # type: ignore
- SetHandleInformation.argtypes = (
- ctypes.wintypes.HANDLE,
- ctypes.wintypes.DWORD,
- ctypes.wintypes.DWORD,
- )
- SetHandleInformation.restype = ctypes.wintypes.BOOL
- HANDLE_FLAG_INHERIT = 0x00000001
- def set_close_exec(fd: int) -> None:
- success = SetHandleInformation(fd, HANDLE_FLAG_INHERIT, 0)
- if not success:
- raise ctypes.WinError() # type: ignore
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