Susan wrote: > Hi,Jan > In rtnet-0.9.11： > rt_dev_getsockopt(fd, optname, optval, optlen) > rt_dev_setsockopt(fd, optname, optval, optlen)
That's really, really old legacy stuff, disabled unless you explicitly enable it by defining __RTNET_USE_LEGACY_API__ (I better remove this for the next release). Don't look at it, just use the standard RTDM API. > In rtai-3.7: > rt_dev_getsockopt(fd, level, optname, optval, optlen) > rt_dev_setsockopt(fd, level, optname, optval, optlen) > > Why they lack the parameter 'level'? > > > In rtai-3.7,there is the definition of 'rt_dev_select'. > In rtnet-0.9.11,there is not 'select_rt' corresponding to 'rt_dev_select'. > Why? First of all rt_dev_* is RTDM business, RTnet only provides the required hooks to implement the backing services. Regarding select: RTDM does not define such an API, it's the job of the real-time skins (in Xenomai speak, e.g. POSIX) to provide this service for all its file objects (not only RTDM-based ones). Don't know what the state of implementation on the RTAI side is. > > The type of last parameter 'timeout' in select() is 'struct timeval *', > while > in rt_dev_select() it is 'nanosecs_rel_t'. There is no such thing as rt_dev_select in RTDM. If RTAI should have defined that, I would suggest to ask RTAI what they did and why. > I am trying to transform a non-realtime program to a realtime program. Can > I > convert 'struct timecal * timeut' to 'nanosecs_rel_t timeout' compulsorily? > > Thank you for your help. > > Susan > Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
