function WP_Object_Cache()
{
global $memcached_servers;
global $mcrouter_server;
// get appropriate bucket
if ($mcrouter_server && array_key_exists('host', $mcrouter_server) && array_key_exists('port', $mcrouter_server)) {
// use mcrouter host and port if the global mcrouter is set
$buckets = array("{$mcrouter_server['host']}:{$mcrouter_server['port']}");
$this->mcrouter_prefix = '/rep/all/';
} else {
if ($mcrouter_server) {
// we should be using mcrouter, but we can't
error_log('[wpengine] Pod set to use mcrouter but host and port names are not specified in site config.json. Falling back to no replication.');
}
if (isset($memcached_servers)) {
$buckets = $memcached_servers;
} else {
$buckets = array('unix:///tmp/memcached.sock');
}
}
reset($buckets);
if (is_int(key($buckets))) {
$buckets = array('default' => $buckets);
}
foreach ($buckets as $bucket => $servers) {
$this->mc[$bucket] = new Memcache();
foreach ($servers as $server) {
if (substr($server, 0, 5) == "unix:") {
$node = $server;
$port = 0;
} else {
list($node, $port) = explode(':', $server);
if (!$port) {
$port = ini_get('memcache.default_port');
}
$port = intval($port);
if (!$port) {
$port = 11211;
}
}
$this->mc[$bucket]->addServer($node, $port, false, 1, 1, -1, true, array($this, 'failure_callback'));
$this->mc[$bucket]->setCompressThreshold(20000, 0.2);
}
}
global $blog_id, $table_prefix;
$this->global_prefix = is_multisite() || defined('CUSTOM_USER_TABLE') && defined('CUSTOM_USER_META_TABLE') ? '' : $table_prefix;
$this->blog_prefix = (is_multisite() ? $blog_id : $table_prefix) . ':';
// try to use the blog name but if we can't locate it, at least use something unique
$customer = WP_Object_Cache::get_site_cache_key(__FILE__);
$this->customer = $customer;
// SO: blog prefix must come before any custom prefix
$this->global_prefix = $this->global_prefix . ':' . $customer;
$this->blog_prefix = $this->blog_prefix . ':' . $customer;
$this->cache_hits =& $this->stats['get'];
$this->cache_misses =& $this->stats['add'];
}
