Mark fd as ignored so that the next call to Poll.wait will yield
the same result for fd as last time. This function must be called if no
operation (read/write/recv/send/etc.) will be performed on fd before
the next call to Poll.wait.
The reason why this is needed is because the underlying implementation
might not allow querying the fd more than once between calls to one of
the re-enabling operations.
Mark fd as ignored so that the next call to Poll.wait will yield the same result for fd as last time. This function must be called if no operation (read/write/recv/send/etc.) will be performed on fd before the next call to Poll.wait.
The reason why this is needed is because the underlying implementation might not allow querying the fd more than once between calls to one of the re-enabling operations.