either use non-blocking sockets
or send a signal to the other process
to make it exit from the read.
> I have implemented a new socket address family and have noted that
> from a multi-threaded application, if a thread calls close(fd) while a
> second thread has a blocking read outstanding, the sockets release() is
not
> called. Is this correct? How can one unblock the read in order to do the
> close.
>
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