/**
* Reads in known/config servers and adds them to the instance.
*
* This method is called when the cache object is invoked by the framework
* automatically, and needs to configure itself from the values in the global
* config file.
*/
public function Autorun()
{
$Servers = Gdn_Cache::ActiveStore('memcached');
if (!is_array($Servers)) {
$Servers = explode(',', $Servers);
}
// No servers, cache temporarily offline
if (!sizeof($Servers)) {
SaveToConfig('Cache.Enabled', false, false);
return false;
}
// Persistent, and already have servers. Shortcircuit adding.
if ($this->Config(Gdn_Cache::CONTAINER_PERSISTENT) && count($this->servers())) {
return true;
}
$Keys = array(Gdn_Cache::CONTAINER_LOCATION, Gdn_Cache::CONTAINER_PERSISTENT, Gdn_Cache::CONTAINER_WEIGHT, Gdn_Cache::CONTAINER_TIMEOUT, Gdn_Cache::CONTAINER_ONLINE, Gdn_Cache::CONTAINER_CALLBACK);
foreach ($Servers as $CacheServer) {
$CacheServer = explode(' ', $CacheServer);
$CacheServer = array_pad($CacheServer, count($Keys), NULL);
$CacheServer = array_combine($Keys, $CacheServer);
foreach ($Keys as $KeyName) {
$Value = val($KeyName, $CacheServer, NULL);
if (is_null($Value)) {
unset($CacheServer[$KeyName]);
}
}
$this->AddContainer($CacheServer);
}
}
/**
* Reads in known/config servers and adds them to the instance.
*
* This method is called when the cache object is invoked by the framework
* automatically, and needs to configure itself from the values in the global
* config file.
*/
public function Autorun() {
$Servers = Gdn_Cache::ActiveStore('memcache');
if (!is_array($Servers))
$Servers = explode(',',$Servers);
$Keys = array(
Gdn_Cache::CONTAINER_LOCATION,
Gdn_Cache::CONTAINER_PERSISTENT,
Gdn_Cache::CONTAINER_WEIGHT,
Gdn_Cache::CONTAINER_TIMEOUT,
Gdn_Cache::CONTAINER_ONLINE,
Gdn_Cache::CONTAINER_CALLBACK
);
foreach ($Servers as $CacheServer) {
$CacheServer = explode(' ',$CacheServer);
$CacheServer = array_pad($CacheServer,count($Keys),NULL);
$CacheServer = array_combine($Keys,$CacheServer);
foreach ($Keys as $KeyName) {
$Value = GetValue($KeyName, $CacheServer, NULL);
if (is_null($Value))
unset($CacheServer[$KeyName]);
}
$this->AddContainer($CacheServer);
}
}
/**
* Register a temporary server connection failure
*
* This method will attempt to temporarily excise the offending server from
* the connect roster for a period of time.
*
* @param string $server
*/
public function Fail($server)
{
// Use APC?
$apc = false;
if (C('Garden.Apc', false) && function_exists('apc_fetch')) {
$apc = true;
}
// Get the active cache name
$activeCache = Gdn_Cache::ActiveCache();
$activeCache = ucfirst($activeCache);
$sctiveStoreKey = "Cache.{$activeCache}.Store";
// Get the localstore
$localStore = GetValue($activeCache, Gdn_Cache::$Stores, null);
if (is_null($localStore)) {
Gdn_Cache::ActiveStore();
$localStore = GetValue($activeCache, Gdn_Cache::$Stores, null);
if (is_null($localStore)) {
return false;
}
}
$storeServerName = md5($server);
if (!array_key_exists($storeServerName, $localStore)) {
return false;
}
$storeServer =& $localStore[$storeServerName];
$isActive =& $storeServer['Active'];
if (!$isActive) {
return false;
}
$fails =& $storeServer['Fails'];
$fails++;
$active = $isActive ? 'active' : 'inactive';
// Check if we need to deactivate for 5 minutes
if ($isActive && $storeServer['Fails'] > 3) {
$isActive = false;
$storeServer['Delay'] = time() + Gdn_Cache::CACHE_EJECT_DURATION;
}
// Save
Gdn_Cache::$Stores[$activeCache] = $localStore;
// Save to APC
if ($apc) {
apc_store($sctiveStoreKey, $localStore, Gdn_Cache::APC_CACHE_DURATION);
}
return true;
}