2중 로그인 방지

C_AuthLogin.java

if (account.isBanned()) { // BAN 어카운트
   _log.info("BAN 어카운트의 로그인을 거부했습니다.account=" + accountName + " host="
     + host);
   client.sendPacket(new S_LoginResult(
     S_LoginResult.REASON_USER_OR_PASS_WRONG));
   return;
  }
else if (LoginController.getInstance().isAccount(accountName))
        { // 계정 사용중
            client.sendPacket(new S_LoginResult(S_LoginResult.REASON_ACCOUNT_IN_USE));
            LoginController.getInstance().getClient(accountName).sendPacket(new S_Disconnect());
            return;
        }

try {
   LoginController.getInstance().login(client, account);
   Account.updateLastActive(account); // 최종 로그인일을 갱신한다
   client.setAccount(account);

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LoginController.java

    public boolean isAccount(String account)
    {
        return _accounts.containsKey(account);
    }
    
    public LinClient getClient(String account)
    {
        return _accounts.get(account);
    }