Merge upstream branch

1 files changed, 19 insertions, 4 deletions

diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index 1fce76cb5..f0b8e7789 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -38,7 +38,7 @@
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
-class CI_DB_driver {
+abstract class CI_DB_driver {
 
 	public $dsn;
 	public $username;
@@ -175,6 +175,23 @@ class CI_DB_driver {
 	// --------------------------------------------------------------------
 
 	/**
+	 * Reconnect
+	 *
+	 * Keep / reestablish the db connection if no queries have been
+	 * sent for a length of time exceeding the server's idle timeout.
+	 *
+	 * This is just a dummy method to allow drivers without such
+	 * functionality to not declare it, while others will override it.
+	 *
+	 * @return      void
+	 */
+	public function reconnect()
+	{
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Set client character set
 	 *
 	 * @param	string
@@ -1320,9 +1337,7 @@ class CI_DB_driver {
 	 *
 	 * @return	void
 	 */
-	protected function _reset_select()
-	{
-	}
+	abstract protected function _reset_select();
 
 }