[illumos-Developer] Proposal: Add memory clearing allocator to libnvpair

[Jason King]

On Wed, Jan 26, 2011 at 7:20 PM, Garrett D'Amore <garrett at nexenta.com> wrote:
> Jason, I missed your original message.
>
> That said, this sounds like an easy improvement.  I presume we are only
> talking about doing this for userland, and not for kernel space?
>
> The reference passed into nvlist_xalloc is used to receive the pointer
> to the newly allocated structure.  Its done this way so that
> nvlist_alloc() and return different errnos on success.

One potential wrinkle.  The existing libnvpair.so.1 lib is somewhat
heavily versioned:

SUNW_1.3
SUNW_1.2.2
SUNW_1.2.1
SUNW_1.2
SUNW_1.1.1
SUNW_1.1
SUNWprivate_1.1

So... should we just cram the nv_alloc_zero symbol into SUNW_1.3, or
should we create an ILLUMOS_1.0 or such ?
I've not looked too heavily into the versioning mechanisms supported
by the linker (though perhaps I'll need to now).