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From: john@baldur.UUCP (John Brinegar)
Newsgroups: comp.unix
Subject: Message queues
Message-ID: <2299@megadon.UUCP>
Date: 27 Dec 90 00:26:31 GMT
Sender: clp@megadon.UUCP
Organization: TelWatch Inc., 2905 Wilderness Place, Boulder, CO 80301
Lines: 33
Approved: clp@megadon.UUCP
Posted-Date: Mon, 17 Dec 90 16:31:24 GMT

Following is an request I am posting for a friend that doesn't have net
access.  Please respond to the voice phone number given at the end of the
article.
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I am wondering if anyone has source to help me with a problem I have
encountered in a project I am working on.  I am using
System V (Venix) and need more messages outstanding in the
message queues than apparently the system will alow.
According to what I decypher from mtune, I can only have
40 messages outstanding systemwide.  But the biggest limitation
is the 128K limitation due to the way message queues are
implemented.
Essentially, my requirements are as follows:

Message length max = 512 (may get by with 256 bytes)
40 queues
Max # of outstanding messages = 500
Different queues may have different max message lengths.
The messages need to be accessed randomly. (Not FIFO)

What I am hoping for is that someone has developed the code
implementing message queues in shared memory.
 
 
I can be reached at (daytime, voice)
phone # (303) 939-6922  Robert Payne
 
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-- 
John D. Brinegar	{att!uswat, uunet!dunike} !onecom!john
TelWatch Inc.  		(303) 440-4756