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- Submitted-by: preece@urbana.mcd.mot.com (Scott E. Preece)
-
- In article <1992Feb16.075855.22572@uunet.uu.net> huy@rainbow.asd.sgi.com (Huy Nguyen) writes:
-
- >In Posix.4 draft 10, section 7 on real-time signals extension, page
- >119, the draft mentions that the range SIGRTMIN through SIGRTMAX
- >inclusive shall include at least {RTSIG_MAX} signal numbers. A
- >conforming implementation shall support a value for {RTSIG_MAX} of at
- >least {_POSIX_RTSIG_MAX}.
- >However, I couldn't find where _POSIX_RTSIG_MAX is defined?
-
- I can't speak to draft 10, but in Draft 11 the definition is in section
- 2.7.1 on page 23 -- it requires the range to be at least 8.
-
- I believe the idea of the range of values is that they are available for
- the application writer to use to define application-specific signals.
- The numbering implies priority ordering, so the application has a lot of
- freedom to do real-time-ish things with the signals in the RT range.
-
- I think the idea is you do something like:
- #define SIGCOLLISION SIGRTMIN
- #define SIGPROXIMITY SIGRTMIN+1
- ...
-
- --
- scott preece
- motorola/mcg urbana design center 1101 e. university, urbana, il 61801
- uucp: uunet!uiucuxc!udc!preece, arpa: preece@urbana.mcd.mot.com
- phone: 217-384-8589 fax: 217-384-8550
-
-
- Volume-Number: Volume 26, Number 100
-
-