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From: Tom Lane <tgl@sss.pgh.pa.us>
To: ff <ff-@uol.com.br>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: persistent variables between cross-calls in C functions
Date: Sat, 22 Mar 2003 00:20:21 -0500
Message-ID: <27885.1048310421@sss.pgh.pa.us> (raw)
In-Reply-To: <HC479L$IV_LImy4TIWPigNNbAWviUDKTgWo@uol.com.br>
References: <HC479L$IV_LImy4TIWPigNNbAWviUDKTgWo@uol.com.br>

"ff" <ff-@uol.com.br> writes:
> I could not find any way to store a value in a C function
> between calls.

A static variable such as you illustrated should work fine --- at least
for successive calls within a single session.  It will not provide
communications across sessions.  For that you'd need to use a file or
grab some shared memory (this is doable but bear in mind that it's a
very finite resource).

			regards, tom lane




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