| Lists: | pgsql-hackers |
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| From: | mohsen soodkhah mohammadi <mohsensoodkhah(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | palloc0 |
| Date: | 2013-11-30 09:00:43 |
| Message-ID: | CAGT6x6ekrgf2vzDVxVrn=VQ3M03Xt4To2QLeodm0Wm=F2bgNpw@mail.gmail.com |
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if I don't dalloc parameters that allocated with palloc0 then will free the
allocated memory at the end of transaction?
| From: | Atri Sharma <atri(dot)jiit(at)gmail(dot)com> |
|---|---|
| To: | mohsen soodkhah mohammadi <mohsensoodkhah(at)gmail(dot)com> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: palloc0 |
| Date: | 2013-11-30 09:40:07 |
| Message-ID: | B63B2B31-38CC-4DC3-90E3-2689BA360A16@gmail.com |
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Sent from my iPad
> On 30-Nov-2013, at 14:30, mohsen soodkhah mohammadi <mohsensoodkhah(at)gmail(dot)com> wrote:
>
> if I don't dalloc parameters that allocated with palloc0 then will free the allocated memory at the end of transaction?
Yes, palloc allocates memory in contexts, and the memory allocated in these contexts by palloc are freed at the deletion of the context.
Regards,
Atri
| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | mohsen soodkhah mohammadi <mohsensoodkhah(at)gmail(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: palloc0 |
| Date: | 2013-11-30 14:41:27 |
| Message-ID: | 5299F917.3000403@dunslane.net |
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On 11/30/2013 04:00 AM, mohsen soodkhah mohammadi wrote:
> if I don't dalloc parameters that allocated with palloc0 then will
> free the allocated memory at the end of transaction?
Please read src/backend/utils/mmgr/README
cheers
andrew
| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | mohsen soodkhah mohammadi <mohsensoodkhah(at)gmail(dot)com>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: palloc0 |
| Date: | 2013-12-01 05:46:55 |
| Message-ID: | CAB7nPqSex6dNsM04DLUxjOvMW9tRNfmbarJ01VEP8it_BGRcCQ@mail.gmail.com |
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On Sat, Nov 30, 2013 at 11:41 PM, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> Please read src/backend/utils/mmgr/README
And that as well directly in the docs:
http://www.postgresql.org/docs/devel/static/xfunc-c.html#AEN53984
"The memory allocated by palloc will be freed automatically at the end
of each transaction, preventing memory leaks."
Regards,
--
Michael