table_host_cache.h

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/* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; version 2 of the License.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software Foundation,
  51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */

#ifndef TABLE_HOST_CACHE_H
#define TABLE_HOST_CACHE_H

#include "pfs_column_types.h"
#include "pfs_engine_table.h"

class Host_entry;

struct row_host_cache
{
  char m_ip[64];
  uint m_ip_length;
  char m_hostname[255];
  uint m_hostname_length;
  bool m_host_validated;
  ulonglong m_sum_connect_errors;
  ulonglong m_count_host_blocked_errors;
  ulonglong m_count_nameinfo_transient_errors;
  ulonglong m_count_nameinfo_permanent_errors;
  ulonglong m_count_format_errors;
  ulonglong m_count_addrinfo_transient_errors;
  ulonglong m_count_addrinfo_permanent_errors;
  ulonglong m_count_fcrdns_errors;
  ulonglong m_count_host_acl_errors;
  ulonglong m_count_no_auth_plugin_errors;
  ulonglong m_count_auth_plugin_errors;
  ulonglong m_count_handshake_errors;
  ulonglong m_count_proxy_user_errors;
  ulonglong m_count_proxy_user_acl_errors;
  ulonglong m_count_authentication_errors;
  ulonglong m_count_ssl_errors;
  ulonglong m_count_max_user_connection_errors;
  ulonglong m_count_max_user_connection_per_hour_errors;
  ulonglong m_count_default_database_errors;
  ulonglong m_count_init_connect_errors;
  ulonglong m_count_local_errors;
  ulonglong m_count_unknown_errors;
  ulonglong m_first_seen;
  ulonglong m_last_seen;
  ulonglong m_first_error_seen;
  ulonglong m_last_error_seen;
};

class table_host_cache : public PFS_engine_table
{
public:
  static PFS_engine_table_share m_share;
  static PFS_engine_table* create();
  static int delete_all_rows();

  virtual int rnd_next();
  virtual int rnd_pos(const void *pos);
  virtual void reset_position(void);

protected:
  virtual int read_row_values(TABLE *table,
                              unsigned char *buf,
                              Field **fields,
                              bool read_all);

  table_host_cache();

public:
  ~table_host_cache()
  {}

private:
  void materialize(THD *thd);
  static void make_row(Host_entry *entry, row_host_cache *row);

  static THR_LOCK m_table_lock;
  static TABLE_FIELD_DEF m_field_def;

  row_host_cache *m_all_rows;
  uint m_row_count;
  row_host_cache *m_row;
  PFS_simple_index m_pos;
  PFS_simple_index m_next_pos;
};

#endif