System V.3 malloc

[Ian Heavens]

From: ian at redrump.spider.co.uk (Ian Heavens)
Newsgroups: info-unix at sem.brl.mil
Subject: System V.3 kernel malloc
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Organization: Spider Systems Limited, Edinburgh, UK.
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I am trying to allocate memory dynamically in the UNIX V.3.2 kernel
running on an 80386.

malloc() takes a 'struct map' structure and a size (in pages? bytes?)

e.g.:

malloc(sptmap, size)
struct map sptmap;
int size;

and there seem to be several different areas of memory, each corresponding
to a separate map structure.  sptmap is the system page table map,
which I think is the one I want.  There appears to be a higher level
interface to this, composed of sptalloc() and sptfree().  

(1) should I be using the sptmap, and if so, sptalloc?  What are the
semantics of the parameters to sptalloc?

(2) if not, what?

Please dont suggest using STREAMS buffers!  I am writing a package
to trace Streams messages (primarily to aid debugging of Streams
buffer leaks), and it would be too incestuous to do this.

Thanks

Ian Heavens


----------------------------
Ian Heavens	
Spider Systems Limited
Spider Park, Stanwell Street
Edinburgh, EH6 5NG, Scotland
+44 31 554 9424 (Ext 4166)

ian at spider.co.uk                 
ian%spider.co.uk at uunet.uu.net
----------------------------