> with the address as the "start" parameter and MAP_FIXED. However, that
> tends to fail, and MAP_FIXED can have annoying side-effects (killing
> off other mappings).
MAP_FIXED requires you know in advance a good place to put the memory,
which isn't too hard with some planning but does get fairly platform
specific and requires good knowledge.
> The point of all this is that I want to pass a large, complex (full of
> pointers) data structure to a different process, and I don't want the
> overhead of serialising it down a socket and then parsing it at the
> other end (the data structure's pretty big, and the other process
> won't need it all). Is this possible?
You can also just use relative pointers, which is actually pretty fast on
most modern processors
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