From 8eb8dcc8425295d1a4278613031812bff7d98c15 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Wed, 1 Jul 2009 08:11:27 +0000
Subject: - Patch #314358 by wonder95, Crell, killes, et al: add option to
 ignore slave servers.  Finally.

---
 includes/database/database.inc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'includes/database/database.inc')

diff --git a/includes/database/database.inc b/includes/database/database.inc
index 44a90c1ee..45f4d748c 100644
--- a/includes/database/database.inc
+++ b/includes/database/database.inc
@@ -2687,6 +2687,19 @@ function db_rewrite_sql($query, $primary_table = 'n', $primary_field = 'nid',  $
   return $query;
 }
 
+/**
+ * Helper function to get duration lag from variable
+ * and set the session variable that contains the lag.
+ */
+function db_ignore_slave() {
+  // Five minutes is long enough to allow the slave to break and resume
+  // interrupted replication without causing problems on the Drupal site
+  // from the old data.
+  $duration = variable_get('maximum_replication_lag', 300);
+  
+  // Set session variable with amount of time to delay  before using slave.
+  $_SESSION['ignore_slave_server'] = REQUEST_TIME + $duration;
+}
 
 /**
  * @} End of "ingroup database-legacy".
-- 
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