协程单例

为兼容协程环境下的单例模式安全 可以使用CoroutineSingleTon这个trait

引用方法可以参考普通Singleton trait

  1. namespace EasySwoole\Component;
  2. use Swoole\Coroutine;
  3. trait CoroutineSingleTon
  4. {
  5.     private static $instance = [];
  6.     static function getInstance(...$args)
  7.     {
  8.         $cid = Coroutine::getCid();
  9.         if(!isset(self::$instance[$cid])){
  10.             self::$instance[$cid] = new static(...$args);
  11.             /*
  12.              * 兼容非携程环境
  13.              */
  14.             if($cid > 0){
  15.                 Coroutine::defer(function ()use($cid){
  16.                     unset(self::$instance[$cid]);
  17.                 });
  18.             }
  19.         }
  20.         return self::$instance[$cid];
  21.     }
  22.     function destroy(int $cid = null)
  23.     {
  24.         if($cid === null){
  25.             $cid = Coroutine::getCid();
  26.         }
  27.         unset(self::$instance[$cid]);
  28.     }
  29. }