popsu-d7/modules/user/tests/user_flood_test.module

<?php

/**
 * @file
 * Dummy module implementing hook_user_flood_control.
 */

/**
 * Implements hook_user_flood_control().
 */
function user_flood_test_user_flood_control($ip, $username = FALSE) {
  if (!empty($username)) {
    watchdog('user_flood_test', 'hook_user_flood_control was passed username %username and IP %ip.', array('%username' => $username, '%ip' => $ip));
  }
  else {
    watchdog('user_flood_test', 'hook_user_flood_control was passed IP %ip.', array('%ip' => $ip));
  }
}