X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2Fdb%2Floadbalancer%2FLoadMonitor.php;h=e68cf1a518916666850d689d4fdb28cc06ba416c;hb=0d0059d36e7494792378c020f5de6033985c3637;hp=4975ea19ddf7e2e55d40f1e7f4ca5d50ee8b30d5;hpb=9f01cee8fa46aa5770feecea71be7db9ca64b1ae;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/db/loadbalancer/LoadMonitor.php b/includes/db/loadbalancer/LoadMonitor.php
index 4975ea19dd..e68cf1a518 100644
--- a/includes/db/loadbalancer/LoadMonitor.php
+++ b/includes/db/loadbalancer/LoadMonitor.php
@@ -36,21 +36,29 @@ interface LoadMonitor {
 
 	/**
 	 * Perform pre-connection load ratio adjustment.
-	 * @param array $loads
+	 * @param array &$loads
 	 * @param string|bool $group The selected query group. Default: false
 	 * @param string|bool $wiki Default: false
 	 */
 	public function scaleLoads( &$loads, $group = false, $wiki = false );
 
 	/**
-	 * Return an estimate of replication lag for each server
+	 * Get an estimate of replication lag (in seconds) for each server
+	 *
+	 * Values may be "false" if replication is too broken to estimate
 	 *
 	 * @param array $serverIndexes
 	 * @param string $wiki
 	 *
-	 * @return array Map of (server index => seconds)
+	 * @return array Map of (server index => float|int|bool)
 	 */
 	public function getLagTimes( $serverIndexes, $wiki );
+
+	/**
+	 * Clear any process and persistent cache of lag times
+	 * @since 1.27
+	 */
+	public function clearCaches();
 }
 
 class LoadMonitorNull implements LoadMonitor {
@@ -63,4 +71,8 @@ class LoadMonitorNull implements LoadMonitor {
 	public function getLagTimes( $serverIndexes, $wiki ) {
 		return array_fill_keys( $serverIndexes, 0 );
 	}
+
+	public function clearCaches() {
+
+	}
 }