text: /*------------------------------------------------------------------------------
   *
   * Copyright (c) 2011-2021, EURid vzw. All rights reserved.
   * The YADIFA TM software product is provided under the BSD 3-clause license:
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   *        * Redistributions of source code must retain the above copyright
   *          notice, this list of conditions and the following disclaimer.
   *        * Redistributions in binary form must reproduce the above copyright
   *          notice, this list of conditions and the following disclaimer in the
   *          documentation and/or other materials provided with the distribution.
   *        * Neither the name of EURid nor the names of its contributors may be
   *          used to endorse or promote products derived from this software
   *          without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   *------------------------------------------------------------------------------
   *
   */
  
  /** @defgroup 
   *  @ingroup 
   *  @brief 
   *
   *  
   *
   * @{
   *
   *----------------------------------------------------------------------------*/
  
  #pragma once
  
  #include<dnscore/dnskey.h>
  
  #include <dynamic-module-interface.h>
  
  struct dynamic_module_interface_chain;
  struct dynamic_module_dnskey_interface_chain;
  struct dynamic_module_statistics_interface_chain;
  struct server_statistics_t;
  
  #if !DYNAMIC_MODULE_HANDLER_C
  extern struct dynamic_module_interface_chain *g_dynamic_module_interface_chain;
  extern struct dynamic_module_dnskey_interface_chain *g_dynamic_module_dnskey_interface_chain;
  extern struct dynamic_module_statistics_interface_chain *g_dynamic_module_statistics_interface_chain;
  #endif
  
  /**
   * Trivial.
   */
  
  ya_result dynamic_module_handler_init();
  
  /**
   * Trivial.
   */
  
  ya_result dynamic_module_handler_finalize();
  
  /**
   * Loads a module given its full path name (with luck relative may work too ... so yes: full path)
   * Don't forget to take into account the choot.
   * 
   * Modules should only be loaded AFTER the last fork.
   */
  
  ya_result dynamic_module_handler_load(int argc, const char **argv);
  
  ya_result dynamic_module_handler_load_from_command(const char *command);
  
  static inline bool dynamic_module_interface_chain_available()
  {
      return g_dynamic_module_interface_chain != NULL;
  }
  
  static inline bool dynamic_module_dnskey_interface_chain_available()
  {
      return g_dynamic_module_dnskey_interface_chain != NULL;
  }
  
  static inline bool dynamic_module_statistics_interface_chain_available()
  {
      return g_dynamic_module_statistics_interface_chain != NULL;
  }
  
  // interface
  
  void dynamic_module_startup();
  void dynamic_module_settings();
  void dynamic_module_shutdown();
  
  // dnskey_interface
  
  void dynamic_module_on_dnskey_created(const dnssec_key *key);
  void dynamic_module_on_dnskey_publish(const dnssec_key *key);
  void dynamic_module_on_dnskey_activate(const dnssec_key *key);
  void dynamic_module_on_dnskey_revoke(const dnssec_key *key);
  void dynamic_module_on_dnskey_inactive(const dnssec_key *key);
  void dynamic_module_on_dnskey_delete(const dnssec_key *key);
  
  #define DYNAMIC_MODULE_STATISTICS_RCODE_COUNT 32
  #define DYNAMIC_MODULE_STATISTICS_TSIG_RCODE_COUNT 4
  
  struct dynamic_module_statistics_args_buffers
  {
      uint64_t udp_rcode_buffer[DYNAMIC_MODULE_STATISTICS_RCODE_COUNT];    
      uint64_t tcp_rcode_buffer[DYNAMIC_MODULE_STATISTICS_RCODE_COUNT];
      uint64_t udp_tsig_rcode_buffer[DYNAMIC_MODULE_STATISTICS_TSIG_RCODE_COUNT];    
      uint64_t tcp_tsig_rcode_buffer[DYNAMIC_MODULE_STATISTICS_TSIG_RCODE_COUNT];
  };
  
  void dynamic_module_on_statistics_update(struct server_statistics_t *st, u64 epoch);
  
  /**
   * @}
   */
  