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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_5ir15qnq8gghh0d1n4opol2o8d, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
sclass Trigger implements Runnable {
  bool triggered;
  L<Runnable> onTrigger;
  
  *() {}
  *(Runnable onTrigger) { this.onTrigger = ll(onTrigger); }
  
  // for "user"
  synchronized void trigger() {
    synchronized(this) {
      if (triggered) ret;
      triggered = true;
    }
    pcallFAll(onTrigger);
  }
  
  public void run() { trigger(); }
  
  // for "implementer" - check if triggered and clear flag
  synchronized bool check() {
    if (!triggered) false;
    ret true with triggered = false;
  }
}