converse of cygwin_attach_handle_to_fd()?

[Samuel Thibault]

Hi,

cygwin_attach_handle_to_fd() lets create a cygwin fd on top of a windows
handle. When calling close() on the fd, the windows handle is closed
too. Is there any way to close the fd without closing the underlying
handle? (i.e. the converse of cygwin_attach_handle_to_fd(), actually)

The same question applies to mingw's open_osfhandle() actually.

Samuel

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