From: Andre Noll <maan@systemlinux.org>
Date: Sat, 7 Jul 2007 17:11:45 +0000 (+0200)
Subject: mysql_selector.c: introduce the myslq lock
X-Git-Tag: v0.2.17~47
X-Git-Url: http://git.tuebingen.mpg.de/?a=commitdiff_plain;h=843950e7a85730b796bb6238b6e91111f7209c25;hp=843950e7a85730b796bb6238b6e91111f7209c25;p=paraslash.git

mysql_selector.c: introduce the myslq lock

This fixes a race condition in para_server:

	parent			child

	real_query
				real_query
	mysql_store_result

This could cause para_server to hang in case the child process issued
a query which does not yield a result. It's hard to hit though. Fix is
to take the lock before the call to real_query, and release it after
mysql_store_result().

The patch also fixes a format string bug which was introduced by the patch
that switched to my_ulonglong for suitable variables in mysql_selector.c.
These need "%lli".
---