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- Submitted-by: stephe@speaker.uucp (Stephen R. Walli)
-
- In response to Gil Tene's POSIX.4 questions:
-
- > I am interested in knowing the current status of POSIX 1003.4. I have
- > read some articles (quite) a while back, but haven't seen anything new
- > on the subject.
-
- There is a snitch report on its way within the week on the status of
- POSIX.4 after the April meeting in Chicago.
-
- > Maybe you people out there can help me ?
- > - When is a final version of 1003.4 expected to be adopted ?
-
- Good question. It really depends on the already strained volunteer resources
- of its tech editors and tech reviewers. (I'm one of them, so I can say this.)
- Draft 11 is due out anytime for ballot. Even if the technical content remains
- relatively untouched, there is still language independent specifications to be
- written (which I'm responsible for, so yell at me) and test assertions.
-
- > - What will 1003.4 include ? what sub-1003.4 parts are there ?
- > (e.g. 1003.4a, etc.)
-
- 1003.4
- ------
- Draft 9 which went out for ballot in March 1990 contained chapters on the
- following services:
-
- binary semaphores, process memory locking, shared memory, priority
- scheduling, events, clocks and timers, IPC message passing, synch I/O,
- asynch I/O, realtime files.
-
- Draft 10 ``fixed'' signals to replace events, and added memory mapped files
- to the shared memory chapter.
-
- Draft 11 will likely make major changes to (or remove) IPC, in favour of work
- being done in POSIX.12 (Protocol Independent Interfaces).
-
- 1003.4a
- -------
- Threads interfaces. It is currently in ballot.
-
- 1003.4b
- -------
- More real-time interfaces. Descibed in the forthcoming snitch.
-
- 1003.13
- -------
- Realtime Profiles. The group is building a small set of profiles of the
- realtime interfaces from a scaled down embedded profile up to a kitchen-sink
- do-everything profile.
-
- > - Where/how can I get my hands on the drafts ?
-
- IEEE Standards Office,
- 445 Hoes Lane,
- P.O.Box 1331,
- Piscataway, NJ, USA,
- 08855-1331
-
- phone:
- (908) 562-3800
-
- > - What is the current "trend" in the industry with regard
- > to meeting 1003.4 standards ? How soon can we expect
- > to see 1003.4 support in major releases of vendors ?
- > (SVR4, OSF/1, SunOS, HP-UX, Ultrix, etc.)
-
- Ask the vendors. No, really. Standard market-speak answers include:
-
- i) We're tracking the standard.
- (Some of them actually are contributing, instead of reading about it
- in ever changing ballot drafts.)
-
- ii) We already have real-time. (Guess who this is. The only problem is that
- it isn't standard and their eyes glaze over and they become non-commital
- after that.)
-
- iii) We aren't pursuing the realtime market at this time, but if our customers
- ask for it, we'll provide it. (I've heard one vendor claim not to be
- pursuing the market in realtime, only to have someone else there
- express real surprise at this statement when I repeated it in a
- quiet corner.)
-
- I will not risk the wrath of friends and enemies by mentioning products I
- know of that are seriously implementing the draft document interface, because
- I'm bound to miss someone and some stuff was non-disclosure material.
-
- Hope this helps.
- regards,
- stephe
- +-----------------------------------------------------------------------------+
- Stephen R. Walli SRW Software
- phone: (416) 579 0304 572 Foxrun Court,
- fax: (416) 571 1991 Oshawa, Ontario, Canada,
- speaker!stephe@mks.com -OR- L1K 1N9
- uunet!watmath!mks!speaker!stephe
- +-----------------------------------------------------------------------------+
-
-
-
- Volume-Number: Volume 24, Number 13
-
-