what's role of 'extract' of structure Objects_Information's member?

Bacon Xu baconxu at gmail.com
Wed Sep 12 14:55:38 UTC 2012

Thank you very much. I'm very confused  about the role of  "extract".
What kind of case do I use it? How to use it?
The document haven't mentioned it. to free some resource to RTEMS, or
to notice other nodes that this object has been teared down. I have no

baconxu at gmail.com    An amateur of RTEMS.

On Wed, Sep 12, 2012 at 10:25 PM, Gedare Bloom <gedare at rtems.org> wrote:
> See cpukit/score/src/threadqextractwithproxy.c line 53.
> On Wed, Sep 5, 2012 at 8:31 PM, Bacon Xu <baconxu at gmail.com> wrote:
>> I have studied all of document of RTEMS, and now, I start to read
>> source code of RTEMS. When to see the structure Objects_Information,
>> I'm very confused about 'extract'. it's a function pointer, there is
>> initialized codes in _Objects_Initialize_information under
>> multiprocessing situations. But I haven't found any place to use this
>> field. What is  role of  the 'extract' ?
>> --
>> BRs
>> Bacon
>> baconxu at gmail.com    An amateur of RTEMS.
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>> rtems-users at rtems.org
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