Wait a specified number of nanoseconds before returning.
This function waits a specified number of nanoseconds before returning. It
will attempt to wait as close to the requested time as possible, busy
waiting if necessary, but could return later due to OS scheduling.
Wait a specified number of nanoseconds before returning.
This function waits a specified number of nanoseconds before returning. It will attempt to wait as close to the requested time as possible, busy waiting if necessary, but could return later due to OS scheduling.