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preserving state across external functions calls

From: "Maksim Likharev" <mlikharev(at)aurigin(dot)com>
To: <pgsql-interfaces(at)postgresql(dot)org>
Subject: preserving state across external functions calls
Date: 2003-05-22 19:22:09
Message-ID: 56510AAEF435D240958D1CE8C6B1770A014A0BD6@mailc03.aurigin.com (view raw or flat)
Thread:
Lists: pgsql-interfaces
Hi,
I have a question about a correct way of preserving state/some
information across pg functions call
Let's imagine following example:

External C functions:

FUNCTION_INIT_SOMETHING     - allocates a memory, returns some kind of
handle
FUNCTION_DO_SOMETHING      - use allocated memory
FUNCTION_FREE_SOMETHING  - deallocate using handle

and of cause general idea automatic deallocation at the and of session
scope
Thank you.




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