static int queue_function_queuewaitingcount(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
{
  int count = 0;
  struct call_queue *q;
  struct ast_module_user *lu;
  struct ast_variable *var = NULL;

  buf[0] = '\0';

  if (ast_strlen_zero(data)) {
    ast_log(LOG_ERROR, "%s requires an argument: queuename\n", cmd);
    return -1;
  }

  lu = ast_module_user_add(chan);

  load_realtime_queue(data);

  AST_LIST_LOCK(&queues);
  AST_LIST_TRAVERSE(&queues, q, list) {
    if (!strcasecmp(q->name, data)) {
      ast_mutex_lock(&q->lock);
      break;
    }
  }
  AST_LIST_UNLOCK(&queues);