| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | david(at)andl(dot)org |
| Cc: | PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Shared memory and processes |
| Date: | 2016-04-28 01:14:16 |
| Message-ID: | CAB7nPqQfLXgN2GYUSWrw0RPiE7HNb6nd1_E+T15m5bLpFc58rg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Apr 28, 2016 at 9:56 AM, <david(at)andl(dot)org> wrote:
> Does Postgres provide a convenient way for one process to pass data to
> another using shared memory?
If you are talking about enabling the use of shared memory by 3rd-part
plugins or modules, there is shmem_startup_hook for this purpose.
Another thing that you may want to look at is DSM (dynamic shared
memory), with its interface in dsm.h. An example of use is in
src/test/modules/test_shm_mq.
--
Michael
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