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objects.h

/*****************************************************************************
 *
 * OBJECTS.H - Header file for object addition/search functions
 *
 * Copyright (c) 1999-2007 Ethan Galstad (nagios@nagios.org)
 * Last Modified: 10-22-2007
 *
 * License:
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *****************************************************************************/


#ifndef _OBJECTS_H
#define _OBJECTS_H

#include "config.h"
#include "common.h"

#ifdef __cplusplus
  extern "C" {
#endif



/*************** CURRENT OBJECT REVISION **************/

#define CURRENT_OBJECT_STRUCTURE_VERSION        307     /* increment when changes are made to data structures... */
                                                      /* Nagios 3 starts at 300, Nagios 4 at 400, etc. */



/***************** OBJECT SIZE LIMITS *****************/

#define MAX_STATE_HISTORY_ENTRIES         21    /* max number of old states to keep track of for flap detection */
#define MAX_CONTACT_ADDRESSES                   6       /* max number of custom addresses a contact can have */


/***************** CHAINED HASH LIMITS ****************/

#define SERVICE_HASHSLOTS                      4096     /* 09/24/07 increased from 1024 */
#define HOST_HASHSLOTS                         1024
#define COMMAND_HASHSLOTS                      256
#define TIMEPERIOD_HASHSLOTS                   64
#define CONTACT_HASHSLOTS                      128
#define CONTACTGROUP_HASHSLOTS                 64
#define HOSTGROUP_HASHSLOTS                    128
#define SERVICEGROUP_HASHSLOTS                 128

#define HOSTDEPENDENCY_HASHSLOTS               1024
#define SERVICEDEPENDENCY_HASHSLOTS            2048     /* 09/24/07 increased frm 1024 */
#define HOSTESCALATION_HASHSLOTS               1024
#define SERVICEESCALATION_HASHSLOTS            1024



/****************** DATA STRUCTURES *******************/

typedef struct host_struct host;
typedef struct service_struct service;
typedef struct contact_struct contact;

/* OBJECT LIST STRUCTURE */
typedef struct objectlist_struct{
      void      *object_ptr;
      struct objectlist_struct *next;
        }objectlist;


/* TIMERANGE structure */
typedef struct timerange_struct{
      unsigned long range_start;
      unsigned long range_end;
      struct timerange_struct *next;
        }timerange;


/* DATERANGE structure */
typedef struct daterange_struct{
      int type;
      int syear;          /* start year */
      int smon;           /* start month */
      int smday;          /* start day of month (may 3rd, last day in feb) */
      int swday;          /* start day of week (thursday) */
      int swday_offset;   /* start weekday offset (3rd thursday, last monday in jan) */
      int eyear;
      int emon;
      int emday;
      int ewday;
      int ewday_offset;
      int skip_interval;
      timerange *times;
      struct daterange_struct *next;
      }daterange;


/* TIMEPERIODEXCLUSION structure */
typedef struct timeperiodexclusion_struct{
      char  *timeperiod_name;
      struct timeperiod_struct *timeperiod_ptr;
      struct timeperiodexclusion_struct *next;
        }timeperiodexclusion;


/* TIMEPERIOD structure */
typedef struct timeperiod_struct{
      char    *name;
      char    *alias;
      timerange *days[7];
      daterange *exceptions[DATERANGE_TYPES];
      timeperiodexclusion *exclusions;
      struct      timeperiod_struct *next;
      struct      timeperiod_struct *nexthash;
      }timeperiod;


/* CONTACTSMEMBER structure */
typedef struct contactsmember_struct{
      char    *contact_name;
#ifdef NSCORE
      contact *contact_ptr;
#endif
      struct  contactsmember_struct *next;
        }contactsmember;


/* CONTACTGROUP structure */
typedef struct contactgroup_struct{
      char  *group_name;
      char    *alias;
      contactsmember *members;
      struct      contactgroup_struct *next;
      struct      contactgroup_struct *nexthash;
      }contactgroup;


/* CONTACTGROUPSMEMBER structure */
typedef struct contactgroupsmember_struct{
      char    *group_name;
#ifdef NSCORE
      contactgroup *group_ptr;
#endif
      struct contactgroupsmember_struct *next;
        }contactgroupsmember;


/* CUSTOMVARIABLESMEMBER structure */
typedef struct customvariablesmember_struct{
      char    *variable_name;
      char    *variable_value;
      int     has_been_modified;
      struct customvariablesmember_struct *next;
        }customvariablesmember;


/* COMMAND structure */
typedef struct command_struct{
      char    *name;
      char    *command_line;
      struct command_struct *next;
      struct command_struct *nexthash;
        }command;


/* COMMANDSMEMBER structure */
typedef struct commandsmember_struct{
      char  *command;
#ifdef NSCORE
      command *command_ptr;
#endif
      struct      commandsmember_struct *next;
      }commandsmember;


/* CONTACT structure */
struct contact_struct{
      char  *name;
      char  *alias;
      char  *email;
      char  *pager;
      char    *address[MAX_CONTACT_ADDRESSES];
      commandsmember *host_notification_commands;
      commandsmember *service_notification_commands;  
      int     notify_on_service_unknown;
      int     notify_on_service_warning;
      int     notify_on_service_critical;
      int     notify_on_service_recovery;
      int     notify_on_service_flapping;
      int     notify_on_service_downtime;
      int   notify_on_host_down;
      int   notify_on_host_unreachable;
      int   notify_on_host_recovery;
      int     notify_on_host_flapping;
      int     notify_on_host_downtime;
      char  *host_notification_period;
      char  *service_notification_period;
      int     host_notifications_enabled;
      int     service_notifications_enabled;
      int     can_submit_commands;
      int     retain_status_information;
      int     retain_nonstatus_information;
      customvariablesmember *custom_variables;
#ifdef NSCORE
      time_t  last_host_notification;
      time_t  last_service_notification;
      unsigned long modified_attributes;
      unsigned long modified_host_attributes;
      unsigned long modified_service_attributes;

      timeperiod *host_notification_period_ptr;
      timeperiod *service_notification_period_ptr;
      objectlist *contactgroups_ptr;
#endif
      struct      contact_struct *next;
      struct      contact_struct *nexthash;
        };


/* SERVICESMEMBER structure */
typedef struct servicesmember_struct{
      char    *host_name;
      char    *service_description;
#ifdef NSCORE
      service *service_ptr;
#endif
      struct servicesmember_struct *next;
        }servicesmember;


/* HOSTSMEMBER structure */
typedef struct hostsmember_struct{
      char    *host_name;
#ifdef NSCORE
      host    *host_ptr;
#endif
      struct hostsmember_struct *next;
        }hostsmember;


/* HOSTGROUP structure */
typedef struct hostgroup_struct{
      char  *group_name;
      char    *alias;
      hostsmember *members;
      char    *notes;
      char    *notes_url;
      char    *action_url;
      struct      hostgroup_struct *next;
      struct      hostgroup_struct *nexthash;
      }hostgroup;


/* HOST structure */
struct host_struct{
      char    *name;
      char    *display_name;
      char  *alias;
      char    *address;
        hostsmember *parent_hosts;
        hostsmember *child_hosts;
      servicesmember *services;
      char    *host_check_command;
      int     initial_state;
      double  check_interval;
      double  retry_interval;
      int     max_attempts;
      char    *event_handler;
      contactgroupsmember *contact_groups;
      contactsmember *contacts;
      double  notification_interval;
      double  first_notification_delay;
      int   notify_on_down;
      int   notify_on_unreachable;
      int     notify_on_recovery;
      int     notify_on_flapping;
      int     notify_on_downtime;
      char  *notification_period;
      char    *check_period;
      int     flap_detection_enabled;
      double  low_flap_threshold;
      double  high_flap_threshold;
      int     flap_detection_on_up;
      int     flap_detection_on_down;
      int     flap_detection_on_unreachable;
      int     stalk_on_up;
      int     stalk_on_down;
      int     stalk_on_unreachable;
      int     check_freshness;
      int     freshness_threshold;
      int     process_performance_data;
      int     checks_enabled;
      int     accept_passive_host_checks;
      int     event_handler_enabled;
      int     retain_status_information;
      int     retain_nonstatus_information;
      int     failure_prediction_enabled;
      char    *failure_prediction_options;
      int     obsess_over_host;
      char    *notes;
      char    *notes_url;
      char    *action_url;
      char    *icon_image;
      char    *icon_image_alt;
      char    *vrml_image;
      char    *statusmap_image;
      int     have_2d_coords;
      int     x_2d;
      int     y_2d;
      int     have_3d_coords;
      double  x_3d;
      double  y_3d;
      double  z_3d;
      int     should_be_drawn;
      customvariablesmember *custom_variables;
#ifdef NSCORE
      int     problem_has_been_acknowledged;
      int     acknowledgement_type;
      int     check_type;
      int     current_state;
      int     last_state;
      int     last_hard_state;
      char  *plugin_output;
      char    *long_plugin_output;
      char    *perf_data;
        int     state_type;
      int     current_attempt;
      unsigned long current_event_id;
      unsigned long last_event_id;
      unsigned long current_problem_id;
      unsigned long last_problem_id;
      double  latency;
      double  execution_time;
      int     is_executing;
      int     check_options;
      int     notifications_enabled;
      time_t  last_host_notification;
      time_t  next_host_notification;
      time_t  next_check;
      int     should_be_scheduled;
      time_t  last_check;
      time_t      last_state_change;
      time_t      last_hard_state_change;
      time_t  last_time_up;
      time_t  last_time_down;
      time_t  last_time_unreachable;
      int     has_been_checked;
      int     is_being_freshened;
      int     notified_on_down;
      int     notified_on_unreachable;
      int     current_notification_number;
      int     no_more_notifications;
      unsigned long current_notification_id;
      int     check_flapping_recovery_notification;
      int     scheduled_downtime_depth;
      int     pending_flex_downtime;
      int     state_history[MAX_STATE_HISTORY_ENTRIES];    /* flap detection */
      int     state_history_index;
      time_t  last_state_history_update;
      int     is_flapping;
      unsigned long flapping_comment_id;
      double  percent_state_change;
      int     total_services;
      unsigned long total_service_check_interval;
      unsigned long modified_attributes;
      int     circular_path_checked;
      int     contains_circular_path;

      command *event_handler_ptr;
      command *check_command_ptr;
      timeperiod *check_period_ptr;
      timeperiod *notification_period_ptr;
      objectlist *hostgroups_ptr;
#endif
      struct  host_struct *next;
      struct  host_struct *nexthash;
        };


/* SERVICEGROUP structure */
typedef struct servicegroup_struct{
      char  *group_name;
      char    *alias;
      servicesmember *members;
      char    *notes;
      char    *notes_url;
      char    *action_url;
      struct      servicegroup_struct *next;
      struct      servicegroup_struct *nexthash;
      }servicegroup;


/* SERVICE structure */
struct service_struct{
      char  *host_name;
      char  *description;
      char    *display_name;
        char    *service_check_command;
      char    *event_handler;
      int     initial_state;
      double      check_interval;
      double  retry_interval;
      int   max_attempts;
      int     parallelize;
      contactgroupsmember *contact_groups;
      contactsmember *contacts;
      double      notification_interval;
      double  first_notification_delay;
      int     notify_on_unknown;
      int   notify_on_warning;
      int   notify_on_critical;
      int   notify_on_recovery;
      int     notify_on_flapping;
      int     notify_on_downtime;
      int     stalk_on_ok;
      int     stalk_on_warning;
      int     stalk_on_unknown;
      int     stalk_on_critical;
      int     is_volatile;
      char  *notification_period;
      char  *check_period;
      int     flap_detection_enabled;
      double  low_flap_threshold;
      double  high_flap_threshold;
      int     flap_detection_on_ok;
      int     flap_detection_on_warning;
      int     flap_detection_on_unknown;
      int     flap_detection_on_critical;
      int     process_performance_data;
      int     check_freshness;
      int     freshness_threshold;
      int     accept_passive_service_checks;
      int     event_handler_enabled;
      int   checks_enabled;
      int     retain_status_information;
      int     retain_nonstatus_information;
      int     notifications_enabled;
      int     obsess_over_service;
      int     failure_prediction_enabled;
      char    *failure_prediction_options;
      char    *notes;
      char    *notes_url;
      char    *action_url;
      char    *icon_image;
      char    *icon_image_alt;
      customvariablesmember *custom_variables;
#ifdef NSCORE
      int     problem_has_been_acknowledged;
      int     acknowledgement_type;
      int     host_problem_at_last_check;
      int     check_type;
      int   current_state;
      int   last_state;
      int   last_hard_state;
      char  *plugin_output;
      char    *long_plugin_output;
      char    *perf_data;
        int     state_type;
      time_t      next_check;
      int     should_be_scheduled;
      time_t      last_check;
      int   current_attempt;
      unsigned long current_event_id;
      unsigned long last_event_id;
      unsigned long current_problem_id;
      unsigned long last_problem_id;
      time_t      last_notification;
      time_t  next_notification;
      int     no_more_notifications;
      int     check_flapping_recovery_notification;
      time_t      last_state_change;
      time_t      last_hard_state_change;
      time_t  last_time_ok;
      time_t  last_time_warning;
      time_t  last_time_unknown;
      time_t  last_time_critical;
      int     has_been_checked;
      int     is_being_freshened;
      int     notified_on_unknown;
      int     notified_on_warning;
      int     notified_on_critical;
      int     current_notification_number;
        unsigned long current_notification_id;
      double  latency;
      double  execution_time;
      int     is_executing;
      int     check_options;
      int     scheduled_downtime_depth;
      int     pending_flex_downtime;
      int     state_history[MAX_STATE_HISTORY_ENTRIES];    /* flap detection */
      int     state_history_index;
      int     is_flapping;
      unsigned long flapping_comment_id;
      double  percent_state_change;
      unsigned long modified_attributes;

      host *host_ptr;
      command *event_handler_ptr;
      char *event_handler_args;
      command *check_command_ptr;
      char *check_command_args;
      timeperiod *check_period_ptr;
      timeperiod *notification_period_ptr;
      objectlist *servicegroups_ptr;
#endif
      struct service_struct *next;
      struct service_struct *nexthash;
      };


/* SERVICE ESCALATION structure */
typedef struct serviceescalation_struct{
      char    *host_name;
      char    *description;
      int     first_notification;
      int     last_notification;
      double  notification_interval;
      char    *escalation_period;
      int     escalate_on_recovery;
      int     escalate_on_warning;
      int     escalate_on_unknown;
      int     escalate_on_critical;
      contactgroupsmember *contact_groups;
      contactsmember *contacts;
#ifdef NSCORE
      service *service_ptr;
      timeperiod *escalation_period_ptr;
#endif
      struct  serviceescalation_struct *next;
      struct  serviceescalation_struct *nexthash;
        }serviceescalation;


/* SERVICE DEPENDENCY structure */
typedef struct servicedependency_struct{
      int     dependency_type;
      char    *dependent_host_name;
      char    *dependent_service_description;
      char    *host_name;
      char    *service_description;
      char    *dependency_period;
      int     inherits_parent;
      int     fail_on_ok;
      int     fail_on_warning;
      int     fail_on_unknown;
      int     fail_on_critical;
      int     fail_on_pending;
#ifdef NSCORE
      int     circular_path_checked;
      int     contains_circular_path;

      service *master_service_ptr;
      service *dependent_service_ptr;
      timeperiod *dependency_period_ptr;
#endif
      struct servicedependency_struct *next;
      struct servicedependency_struct *nexthash;
        }servicedependency;


/* HOST ESCALATION structure */
typedef struct hostescalation_struct{
      char    *host_name;
      int     first_notification;
      int     last_notification;
      double  notification_interval;
      char    *escalation_period;
      int     escalate_on_recovery;
      int     escalate_on_down;
      int     escalate_on_unreachable;
      contactgroupsmember *contact_groups;
      contactsmember *contacts;
#ifdef NSCORE
      host    *host_ptr;
      timeperiod *escalation_period_ptr;
#endif
      struct  hostescalation_struct *next;
      struct  hostescalation_struct *nexthash;
        }hostescalation;


/* HOST DEPENDENCY structure */
typedef struct hostdependency_struct{
      int     dependency_type;
      char    *dependent_host_name;
      char    *host_name;
      char    *dependency_period;
      int     inherits_parent;
      int     fail_on_up;
      int     fail_on_down;
      int     fail_on_unreachable;
      int     fail_on_pending;
#ifdef NSCORE
      int     circular_path_checked;
      int     contains_circular_path;

      host    *master_host_ptr;
      host    *dependent_host_ptr;
      timeperiod *dependency_period_ptr;
#endif
      struct hostdependency_struct *next;
      struct hostdependency_struct *nexthash;
        }hostdependency;




/****************** HASH STRUCTURES ********************/

typedef struct host_cursor_struct{
      int     host_hashchain_iterator;
      host    *current_host_pointer;
        }host_cursor;





/********************* FUNCTIONS **********************/

/**** Top-level input functions ****/
int read_object_config_data(char *,int,int,int);        /* reads all external configuration data of specific types */


/**** Object Creation Functions ****/
contact *add_contact(char *,char *,char *,char *,char **,char *,char *,int,int,int,int,int,int,int,int,int,int,int,int,int,int,int,int);  /* adds a contact definition */
commandsmember *add_service_notification_command_to_contact(contact *,char *);                        /* adds a service notification command to a contact definition */
commandsmember *add_host_notification_command_to_contact(contact *,char *);                     /* adds a host notification command to a contact definition */
customvariablesmember *add_custom_variable_to_contact(contact *,char *,char *);                         /* adds a custom variable to a service definition */
host *add_host(char *,char *,char *,char *,char *,int,double,double,int,int,int,int,int,int,double,double,char *,int,char *,int,int,char *,int,int,double,double,int,int,int,int,int,int,int,int,char *,int,int,char *,char *,char *,char *,char *,char *,char *,int,int,int,double,double,double,int,int,int,int,int); /* adds a host definition */
hostsmember *add_parent_host_to_host(host *,char *);                                      /* adds a parent host to a host definition */
hostsmember *add_child_link_to_host(host *,host *);                                         /* adds a child host to a host definition */
contactgroupsmember *add_contactgroup_to_host(host *,char *);                                     /* adds a contactgroup to a host definition */
contactsmember *add_contact_to_host(host *,char *);                                                     /* adds a contact to a host definition */
customvariablesmember *add_custom_variable_to_host(host *,char *,char *);                               /* adds a custom variable to a host definition */
timeperiod *add_timeperiod(char *,char *);                                                /* adds a timeperiod definition */
timeperiodexclusion *add_exclusion_to_timeperiod(timeperiod *,char *);                                  /* adds an exclusion to a timeperiod */
timerange *add_timerange_to_timeperiod(timeperiod *,int,unsigned long,unsigned long);                 /* adds a timerange to a timeperiod definition */
daterange *add_exception_to_timeperiod(timeperiod *,int,int,int,int,int,int,int,int,int,int,int,int);
timerange *add_timerange_to_daterange(daterange *,unsigned long,unsigned long);
hostgroup *add_hostgroup(char *,char *,char *,char *,char *);                                   /* adds a hostgroup definition */
hostsmember *add_host_to_hostgroup(hostgroup *, char *);                                  /* adds a host to a hostgroup definition */
servicegroup *add_servicegroup(char *,char *,char *,char *,char *);                                     /* adds a servicegroup definition */
servicesmember *add_service_to_servicegroup(servicegroup *,char *,char *);                              /* adds a service to a servicegroup definition */
contactgroup *add_contactgroup(char *,char *);                                            /* adds a contactgroup definition */
contactsmember *add_contact_to_contactgroup(contactgroup *,char *);                             /* adds a contact to a contact group definition */
command *add_command(char *,char *);                                                      /* adds a command definition */
service *add_service(char *,char *,char *,char *,int,int,int,int,double,double,double,double,char *,int,int,int,int,int,int,int,int,char *,int,char *,int,int,double,double,int,int,int,int,int,int,int,int,int,int,char *,int,int,char *,char *,char *,char *,char *,int,int,int); /* adds a service definition */
contactgroupsmember *add_contactgroup_to_service(service *,char *);                             /* adds a contact group to a service definition */
contactsmember *add_contact_to_service(service *,char *);                                               /* adds a contact to a host definition */
serviceescalation *add_serviceescalation(char *,char *,int,int,double,char *,int,int,int,int);          /* adds a service escalation definition */
contactgroupsmember *add_contactgroup_to_serviceescalation(serviceescalation *,char *);                 /* adds a contact group to a service escalation definition */
contactsmember *add_contact_to_serviceescalation(serviceescalation *,char *);                           /* adds a contact to a service escalation definition */
customvariablesmember *add_custom_variable_to_service(service *,char *,char *);                         /* adds a custom variable to a service definition */
servicedependency *add_service_dependency(char *,char *,char *,char *,int,int,int,int,int,int,int,char *);     /* adds a service dependency definition */
hostdependency *add_host_dependency(char *,char *,int,int,int,int,int,int,char *);                             /* adds a host dependency definition */
hostescalation *add_hostescalation(char *,int,int,double,char *,int,int,int);                           /* adds a host escalation definition */
contactsmember *add_contact_to_hostescalation(hostescalation *,char *);                                 /* adds a contact to a host escalation definition */
contactgroupsmember *add_contactgroup_to_hostescalation(hostescalation *,char *);                       /* adds a contact group to a host escalation definition */

contactsmember *add_contact_to_object(contactsmember **,char *);                                        /* adds a contact to an object */ 
customvariablesmember *add_custom_variable_to_object(customvariablesmember **,char *,char *);           /* adds a custom variable to an object */


/**** Object Hash Functions ****/
int add_host_to_hashlist(host *);
int add_service_to_hashlist(service *);
int add_command_to_hashlist(command *);
int add_timeperiod_to_hashlist(timeperiod *);
int add_contact_to_hashlist(contact *);
int add_contactgroup_to_hashlist(contactgroup *);
int add_hostgroup_to_hashlist(hostgroup *);
int add_servicegroup_to_hashlist(servicegroup *);
int add_hostdependency_to_hashlist(hostdependency *);
int add_servicedependency_to_hashlist(servicedependency *);
int add_hostescalation_to_hashlist(hostescalation *);
int add_serviceescalation_to_hashlist(serviceescalation *);


/**** Object Search Functions ****/
timeperiod * find_timeperiod(char *);                                                   /* finds a timeperiod object */
host * find_host(char *);                                                     /* finds a host object */
hostgroup * find_hostgroup(char *);                                               /* finds a hostgroup object */
servicegroup * find_servicegroup(char *);                                         /* finds a servicegroup object */
contact * find_contact(char *);                                                         /* finds a contact object */
contactgroup * find_contactgroup(char *);                                         /* finds a contactgroup object */
command * find_command(char *);                                                         /* finds a command object */
service * find_service(char *,char *);                                              /* finds a service object */


/**** Object Traversal Functions ****/
void move_first_service(void);                                                      /* sets up the static memory area for get_next_service */
service *get_next_service(void);                                              /* returns the next service, NULL at the end of the list */
void move_first_host(void);                                                   /* sets up the static memory area for get_next_host */
host *get_next_host(void);                                                    /* returns the next host, NULL at the end of the list */
void *get_host_cursor(void);                                                          /* allocate memory for the host cursor */
host *get_next_host_cursor(void *v_cursor);                                         /* return the next host, NULL at the end of the list */
void free_host_cursor(void *cursor);                                                /* free allocated cursor memory */
void *get_next_N(void **hashchain, int hashslots, int *iterator, void *current, void *next);

hostescalation *get_first_hostescalation_by_host(char *);
hostescalation *get_next_hostescalation_by_host(char *,hostescalation *);
serviceescalation *get_first_serviceescalation_by_service(char *,char *);
serviceescalation *get_next_serviceescalation_by_service(char *,char *,serviceescalation *);
hostdependency *get_first_hostdependency_by_dependent_host(char *);
hostdependency *get_next_hostdependency_by_dependent_host(char *,hostdependency *);
servicedependency *get_first_servicedependency_by_dependent_service(char *,char *);
servicedependency *get_next_servicedependency_by_dependent_service(char *,char *,servicedependency *);

#ifdef NSCORE
int add_object_to_objectlist(objectlist **,void *);
int free_objectlist(objectlist **);
#endif


/**** Object Query Functions ****/
int is_host_immediate_child_of_host(host *,host *);                   /* checks if a host is an immediate child of another host */  
int is_host_primary_immediate_child_of_host(host *,host *);             /* checks if a host is an immediate child (and primary child) of another host */
int is_host_immediate_parent_of_host(host *,host *);                  /* checks if a host is an immediate child of another host */  
int is_host_member_of_hostgroup(hostgroup *,host *);                /* tests whether or not a host is a member of a specific hostgroup */
int is_host_member_of_servicegroup(servicegroup *,host *);          /* tests whether or not a service is a member of a specific servicegroup */
int is_service_member_of_servicegroup(servicegroup *,service *);  /* tests whether or not a service is a member of a specific servicegroup */
int is_contact_member_of_contactgroup(contactgroup *, contact *); /* tests whether or not a contact is a member of a specific contact group */
int is_contact_for_hostgroup(hostgroup *,contact *);                  /* tests whether or not a contact is a member of a specific hostgroup */
int is_contact_for_servicegroup(servicegroup *,contact *);          /* tests whether or not a contact is a member of a specific servicegroup */
int is_contact_for_host(host *,contact *);                          /* tests whether or not a contact is a contact member for a specific host */
int is_escalated_contact_for_host(host *,contact *);                    /* checks whether or not a contact is an escalated contact for a specific host */
int is_contact_for_service(service *,contact *);                    /* tests whether or not a contact is a contact member for a specific service */
int is_escalated_contact_for_service(service *,contact *);              /* checks whether or not a contact is an escalated contact for a specific service */
int is_host_immediate_parent_of_host(host *,host *);                /* tests whether or not a host is an immediate parent of another host */

int number_of_immediate_child_hosts(host *);                          /* counts the number of immediate child hosts for a particular host */
int number_of_total_child_hosts(host *);                    /* counts the number of total child hosts for a particular host */
int number_of_immediate_parent_hosts(host *);                     /* counts the number of immediate parents hosts for a particular host */
int number_of_total_parent_hosts(host *);                   /* counts the number of total parents hosts for a particular host */

#ifdef NSCORE
int check_for_circular_host_path(host *,host *);                             /* checks if a circular path exists for a given host */
int check_for_circular_servicedependency_path(servicedependency *,servicedependency *,int);   /* checks if a circular dependency exists for a given service */
int check_for_circular_hostdependency_path(hostdependency *,hostdependency *,int);   /* checks if a circular dependency exists for a given host */
#endif


/**** Object Cleanup Functions ****/
int free_object_data(void);                             /* frees all allocated memory for the object definitions */

#ifdef __cplusplus
  }
#endif

#endif

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