public static function init()
{
self::$pid = \posix_getpid();
self::$ppid = \posix_getppid();
self::$child = array();
self::$alias = array();
self::$user_events = array();
self::$shm_to_pid = array();
// self::$shm_to_parent = -1;
if (!self::$do_once) {
// 初始化事件对象
if (extension_loaded('libevent')) {
self::$events = new Libevent();
} else {
self::$events = new Select();
}
self::$shm = new Shm(__FILE__, 'a');
// 注册用户信号SIGUSR1处理函数
self::onSysEvent(SIGUSR1, EventInterface::EV_SIGNAL, array("\\core\\proc\\Process", 'defaultSigusr1Cbk'));
// 注册子进程退出处理函数
self::onSysEvent(SIGCHLD, EventInterface::EV_SIGNAL, array("\\core\\proc\\Process", 'defaultSigchldCbk'));
// 注册用户信号SIGUSR2处理函数
self::onSysEvent(SIGUSR2, EventInterface::EV_SIGNAL, array("\\core\\proc\\Process", 'defaultSigusr2Cbk'));
// 注册exit回调函数
register_shutdown_function(function () {
Process::closeShm();
});
self::$do_once = true;
}
}
public static function getInstance($is_master = false)
{
if (null === self::$_instance) {
self::$_instance = new static();
if ($is_master) {
self::$_instance->getProcManager()->setAliasPid('slef', \posix_getpid());
}
}
return self::$_instance;
}