/* calculates network outage effect of a particular host being down or unreachable */
void calculate_outage_effect_of_host(host *hst, int *affected_hosts, int *affected_services) {
int total_child_hosts_affected = 0;
int total_child_services_affected = 0;
int temp_child_hosts_affected = 0;
int temp_child_services_affected = 0;
host *temp_host;
/* find all child hosts of this host */
for (temp_host = host_list; temp_host != NULL; temp_host = temp_host->next) {
/* skip this host if it is not a child */
if (is_host_immediate_child_of_host(hst, temp_host) == FALSE)
continue;
/* calculate the outage effect of the child */
calculate_outage_effect_of_host(temp_host, &temp_child_hosts_affected, &temp_child_services_affected);
/* keep a running total of outage effects */
total_child_hosts_affected += temp_child_hosts_affected;
total_child_services_affected += temp_child_services_affected;
add_affected_host(temp_host->name);
}
*affected_hosts = total_child_hosts_affected + 1;
*affected_services = total_child_services_affected + number_of_host_services(hst);
return;
}
/* calculates network outage effect of all hosts that are causing blockages */
void calculate_outage_effects(void) {
hostoutage *temp_hostoutage;
/* check all hosts causing problems */
for(temp_hostoutage = hostoutage_list; temp_hostoutage != NULL; temp_hostoutage = temp_hostoutage->next) {
/* calculate the outage effect of this particular hosts */
calculate_outage_effect_of_host(temp_hostoutage->hst, &temp_hostoutage->affected_child_hosts, &temp_hostoutage->affected_child_services);
temp_hostoutage->severity = (temp_hostoutage->affected_child_hosts + (temp_hostoutage->affected_child_services / service_severity_divisor));
}
return;
}
