3 files changed, 53 insertions, 8 deletions

diff --git a/classes/Memcached_DataObject.php b/classes/Memcached_DataObject.php
index b68a4af8e..4ecab9db6 100644
--- a/classes/Memcached_DataObject.php
+++ b/classes/Memcached_DataObject.php
@@ -98,14 +98,16 @@ class Memcached_DataObject extends DB_DataObject
         } else {
             $i = DB_DataObject::factory($cls);
             if (empty($i)) {
-                return false;
+                $i = false;
+                return $i;
             }
             $result = $i->get($k, $v);
             if ($result) {
                 $i->encache();
                 return $i;
             } else {
-                return false;
+                $i = false;
+                return $i;
             }
         }
     }
@@ -329,6 +331,29 @@ class Memcached_DataObject extends DB_DataObject
             $exists = false;
        }
 
+        // @fixme horrible evil hack!
+        //
+        // In multisite configuration we don't want to keep around a separate
+        // connection for every database; we could end up with thousands of
+        // connections open per thread. In an ideal world we might keep
+        // a connection per server and select different databases, but that'd
+        // be reliant on having the same db username/pass as well.
+        //
+        // MySQL connections are cheap enough we're going to try just
+        // closing out the old connection and reopening when we encounter
+        // a new DSN.
+        //
+        // WARNING WARNING if we end up actually using multiple DBs at a time
+        // we'll need some fancier logic here.
+        if (!$exists && !empty($_DB_DATAOBJECT['CONNECTIONS'])) {
+            foreach ($_DB_DATAOBJECT['CONNECTIONS'] as $index => $conn) {
+                if (!empty($conn)) {
+                    $conn->disconnect();
+                }
+                unset($_DB_DATAOBJECT['CONNECTIONS'][$index]);
+            }
+        }
+        
         $result = parent::_connect();
 
         if ($result && !$exists) {
diff --git a/classes/Queue_item.php b/classes/Queue_item.php
index 9c673540d..cf805a606 100644
--- a/classes/Queue_item.php
+++ b/classes/Queue_item.php
@@ -25,10 +25,12 @@ class Queue_item extends Memcached_DataObject
     function sequenceKey()
     { return array(false, false); }
 
-    static function top($transport) {
+    static function top($transport=null) {
 
         $qi = new Queue_item();
-        $qi->transport = $transport;
+        if ($transport) {
+            $qi->transport = $transport;
+        }
         $qi->orderBy('created');
         $qi->whereAdd('claimed is null');
 
@@ -40,7 +42,8 @@ class Queue_item extends Memcached_DataObject
             # XXX: potential race condition
             # can we force it to only update if claimed is still null
             # (or old)?
-            common_log(LOG_INFO, 'claiming queue item = ' . $qi->notice_id . ' for transport ' . $transport);
+            common_log(LOG_INFO, 'claiming queue item = ' . $qi->notice_id .
+                ' for transport ' . $qi->transport);
             $orig = clone($qi);
             $qi->claimed = common_sql_now();
             $result = $qi->update($orig);
diff --git a/classes/Status_network.php b/classes/Status_network.php
index 776f6abb0..ef8e1ed43 100644
--- a/classes/Status_network.php
+++ b/classes/Status_network.php
@@ -49,6 +49,13 @@ class Status_network extends DB_DataObject
     static $cache = null;
     static $base = null;
 
+    /**
+     * @param string $dbhost
+     * @param string $dbuser
+     * @param string $dbpass
+     * @param string $dbname
+     * @param array $servers memcached servers to use for caching config info
+     */
     static function setupDB($dbhost, $dbuser, $dbpass, $dbname, $servers)
     {
         global $config;
@@ -60,12 +67,17 @@ class Status_network extends DB_DataObject
         if (class_exists('Memcache')) {
             self::$cache = new Memcache();
 
+            // Can't close persistent connections, making forking painful.
+            //
+            // @fixme only do this in *parent* CLI processes.
+            // single-process and child-processes *should* use persistent.
+            $persist = php_sapi_name() != 'cli';
             if (is_array($servers)) {
                 foreach($servers as $server) {
-                    self::$cache->addServer($server);
+                    self::$cache->addServer($server, 11211, $persist);
                 }
             } else {
-                self::$cache->addServer($servers);
+                self::$cache->addServer($servers, 11211, $persist);
             }
         }
 
@@ -89,7 +101,7 @@ class Status_network extends DB_DataObject
         if (empty($sn)) {
             $sn = self::staticGet($k, $v);
             if (!empty($sn)) {
-                self::$cache->set($ck, $sn);
+                self::$cache->set($ck, clone($sn));
             }
         }
 
@@ -121,6 +133,11 @@ class Status_network extends DB_DataObject
         return parent::delete();
     }
 
+    /**
+     * @param string $servername hostname
+     * @param string $pathname URL base path
+     * @param string $wildcard hostname suffix to match wildcard config
+     */
     static function setupSite($servername, $pathname, $wildcard)
     {
         global $config;