pg.ddx.io  pgsql-hackers@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Zdenek Kotala <Zdenek.Kotala@Sun.COM>
To: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: race condition in pgplsql call handler?
Date: Fri, 11 May 2007 10:23:05 +0200
Message-ID: <464427E9.6030101@sun.com> (raw)

I'm looking into PG/PLSql code and following code in 
plpgsql_call_handler looks strange:

         /* Find or compile the function */
         func = plpgsql_compile(fcinfo, false);

         /* Mark the function as busy, so it can't be deleted from under 
us */
         func->use_count++;


I don't have deep knowledge about this part of code. But what happen if 
in parallel execution "func" will be deleted between these two lines?


		Zdenek



view thread (4+ messages)  latest in thread

Message-ID: <464427E9.6030101@sun.com>
Permalink:  ../464427E9.6030101@sun.com/
Also on:    postgresql.org/message-id/464427E9.6030101@sun.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-hackers@postgresql.org
  Cc: Zdenek.Kotala@Sun.COM
  Subject: Re: race condition in pgplsql call handler?
  In-Reply-To: <464427E9.6030101@sun.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox