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

[Jason King]

Ok, that's what I'll use then

On Wed, Jan 26, 2011 at 11:08 PM, Garrett D'Amore <garrett at nexenta.com> wrote:
> On Wed, 2011-01-26 at 22:11 -0600, Jason King wrote:
>> 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).
>
>
> I think I've already created ILLUMOS_0.1 in another project:  see libc:
>
> SYMBOL_VERSION ILLUMOS_0.1 {    # Illumos additions
>    protected:
>        timegm;
> } SUNW_1.23;
>
>
> So there is precedent.
>
>        - Garrett
>
>
>