I am writing a C++ development tool as part of a group for a college
course and need to use shared memory under UNIX (i.e. both Linux and
maybe SunOS v4). What I was wondering was if I can still use malloc and
related commands for allocating memory in the shared memory area.

I would appreciate any help so that I can settle an arguement about this
(I say that malloc can handle this and you don't need to write your own
functions).

If possible can you please email any replies as I cannot access this
list in college.

Thanks,

Andy Rice
andy.r...@{*filter*}.net

no.

Once you have access to the share memory, you do not allocate in it.  If
you want to write something, use writeshm.

http://www.**-**.com/ #SECTION00744000000000000000

Hope this helps.

D. Turner

[This is not completely relevant to the above posting,
 but I hope it helps ...]

You could try my library ``mmalloc''. It's derived from
the non-shared mmalloc library that ships with gdb, but
has additional locking so you can share memory between
processes (and it's persistent too ...). You use the
`mmalloc' and `mfree' commands to allocate and free
shared memory segments, which should be familiar to most
C programmers.

Eventually the code will go into the main gdb distribution,
but in the meantime mail me & I'll send it.

Rich.

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