/**
* Initialize the shared memory
*
* @return void
*/
static function init()
{
global $dPconfig;
// Must be the same here and in CApp
// We don't use CApp because it can be called in /install
$root_dir = $dPconfig['root_dir'];
$prefix = preg_replace("/[^\\w]+/", "_", $root_dir);
self::$prefix = "{$prefix}-";
/* ----- Local shared memory ----- */
$engine_name = $dPconfig['shared_memory'];
if (!isset(self::$availableEngines[$engine_name])) {
$engine_name = "disk";
}
$class_name = self::$availableEngines[$engine_name];
include_once __DIR__ . "/shm/{$class_name}.class.php";
/** @var ISharedMemory $engine */
$engine = new $class_name();
if (!$engine->init()) {
$class_name = self::$availableEngines["disk"];
include_once __DIR__ . "/shm/{$class_name}.class.php";
$engine = new $class_name();
$engine->init();
}
self::$engine = $engine;
/* ----- Multi server shared memory ----- */
$engine_name_distributed = $dPconfig['shared_memory_distributed'];
if (!$engine_name_distributed || !isset(self::$availableEngines[$engine_name_distributed])) {
$engine_name_distributed = $engine_name;
}
$class_name = self::$availableEngines[$engine_name_distributed];
include_once __DIR__ . "/shm/{$class_name}.class.php";
/** @var ISharedMemory $engine_distributed */
$engine_distributed = new $class_name();
if (!$engine_distributed->init()) {
$class_name = self::$availableEngines["disk"];
include_once __DIR__ . "/shm/{$class_name}.class.php";
$engine_distributed = new $class_name();
$engine_distributed->init();
}
self::$engineDistributed = $engine_distributed;
}
