> So calling close() in one clone, won't cause the early return of,
> say, read() in another; the read has to complete before the
> descriptor gets closed proper. Is that right ?
There is no formal definition of 'right' in this context. Not that I am aware
of anyway. Unix defers close until the last user of a handle closes it, we
basically extended that interpretation. It makes for efficient code as we
don't keep having to check stuff.
With sockets a good tip is to do a shutdown() on the socket then close it,
that will cause an EOF to be seen
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