3/11/2021 0 Comments Qnx Pidin
Time goes on, and the re-occuring meeting needs to be shifted and bumped, rooms get borrowe d (or stolen) and when the meeting organizer changes the room, the room doesnt officially get freeed up until all participants clear their bookings of the rooms. Over time things get so fragmented that until everyone clears their calendars you cant book anything.Ill try and elaborate more on exactly WHAT these things mean later (or maybe Thomas will).
There are exciting things a brew at QNX during the summer heat air conditioning being one of them that tends to only make sporadic appearances unfortunately. Particularly with the fact that you can get a complete virtual address mapping for a process using the proc filesystem and the appropriate devctl() and the entries for and, you should be able to paint a fairly complete memory story all using virtual address information. You can get close, but there are still some missing details when it comes to how particular shared libraries and executables are mapped within other mapped areas (for example using execute in place within secondary image file systems ). Getting access to the physical address allows you to resolve that ambiguity quite nicely. In general this isnt a problem since the MMU for the processor provides the mapping giving you virtual continuity over fragmented physical memory. ![]() It is also a requirement by some tooling like the instrumented kernel, that arranges its data buffers as one contiguous ring. Qnx Pidin Full Support ForWhen I started at QNX the company was in the throes of a major product development effort to bring QNX 6Neutrino to market as its next generation operating system with full support for processor families other than x86. ![]() By necessity this meant spending a lot of time interacting with the very active set of QNX developers, who at that time were steeped in QNX 4 knowledge and trying to migrate their systems and software to this new OS. There are a lot of basic similarities between QNX 4 and QNX 6 but there are enough differences that migration wasnt a zero effort affair, despite a fairly comprehensive software migration kit. It turned out that porting this particular utility (which provides terminal replication and remote terminal access) to Neutrino was going to take some signficiant work and more or less be an entire re-write since the utility took specific advantage of how QNX 4 character device drivers were written. Under Neutrino the serial driver code was completely different, so at the time I turned my focus to other areas where fixes could be made more short term with a plan to come back to do the ditto re-write. The GNU Screen utility provides much of the same terminal multiplexing and remote or shared control that ditto did. The source compiles, with a few minor changes, out of the box for Neutrino. While I havent taken it for a full test drive yet, this looks like it might be the best immediate solution and maybe even long term since there are several screen resources available in the community. The other day walking through our source tree on a related project I noticed that one of our aspiring developers has done some work to make some of the ditto remote monitoring (no interaction) capabilities available for Neutrino. This is still internal goods, and not in the next OS release, but perhaps this article might nudge it along if there is some competition. We have many meeting rooms but we have many more developers that want to have meetings and discussions in those meeting rooms. While a certain amount of hallway development is always going to happen, the really big whiteboards are all in the meeting rooms so that is where we have to gather. Our admin folks use Microsoft Exchange, so if you want to book the rooms then you need to play along (or call in a lot of favours) and book through the Exchange server. An interesting trend Ive noticed is that every few months we tend to end up with a mysterious meeting room stall. A time where it is not possible to use the system to book any meeting room in the building, but if you wander around you find that most of the rooms are not being used. Time goes on, and the re-occuring meeting needs to be shifted and bumped, rooms get borrowe d (or stolen) and when the meeting organizer changes the room, the room doesnt officially get freeed up until all participants clear their bookings of the rooms. Over time things get so fragmented that until everyone clears their calendars you cant book anything.
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