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RE: Posix Inter-process comunication on RH 7.1
- Subject: RE: Posix Inter-process comunication on RH 7.1
- From: Iftach Hyams <paraduma(at-nospam)elbit.co.il>
- Date: Thu, 25 Oct 2001 09:17:14 +0200
- Cc: linux-il(at-nospam)linux.org.il
- Delivered-To: linux.org.il-linux-il@linux.org.il
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
>> Linux is Posix complaint, doesn't it?
>> Or is it that a system can be Posix complaint and still lack
>> Posix IPC?
1. POSIX compliant is composed of many parts. There exists some complex
coding about what parts are being included. I have a book about POSIX 4
and it specify how to determine each facility, so you should look for
_POSIX_MESSAGE_PASSING define (try unistd.h \ limits.h ).
If you need a specific function please ask and I will look for it,
although it is written in the h file.
2. In RedHat 7.1 /usr/include/bits/posix_opt.h I just found
/* POSIX message queues are not yet supported. */
#undef _POSIX_MESSAGE_PASSING
3. You can start at http://www.humanfactor.com/pthreads/ maybe you will
find relevant links. There must be implementations somewhere in the net.
4. Check with RedHat. May reference you or indicate about an inclusion
of such a patch.
5. From my experience most of the programs use the basic set of features
so you can wrap the existing messaging with the POSIX syntax.
Good luck.
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