src/registry_init.c

   1 #include "registry_internals.h"
   2
   3 int registry_init(void) {
   4     char filename[FILENAME_MAX + 1];
   5
   6     // registry enabled?
   7     registry.enabled = config_get_boolean("registry", "enabled", 0);
   8
   9     // pathnames
  10     registry.pathname = config_get("registry", "registry db directory", VARLIB_DIR "/registry");
  11     if(mkdir(registry.pathname, 0770) == -1 && errno != EEXIST)
  12         fatal("Cannot create directory '%s'.", registry.pathname);
  13
  14     // filenames
  15     snprintfz(filename, FILENAME_MAX, "%s/netdata.public.unique.id", registry.pathname);
  16     registry.machine_guid_filename = config_get("registry", "netdata unique id file", filename);
  17     registry_get_this_machine_guid();
  18
  19     snprintfz(filename, FILENAME_MAX, "%s/registry.db", registry.pathname);
  20     registry.db_filename = config_get("registry", "registry db file", filename);
  21
  22     snprintfz(filename, FILENAME_MAX, "%s/registry-log.db", registry.pathname);
  23     registry.log_filename = config_get("registry", "registry log file", filename);
  24
  25     // configuration options
  26     registry.save_registry_every_entries = (unsigned long long)config_get_number("registry", "registry save db every new entries", 1000000);
  27     registry.persons_expiration = config_get_number("registry", "registry expire idle persons days", 365) * 86400;
  28     registry.registry_domain = config_get("registry", "registry domain", "");
  29     registry.registry_to_announce = config_get("registry", "registry to announce", "https://registry.my-netdata.io");
  30     registry.hostname = config_get("registry", "registry hostname", config_get("global", "hostname", localhost.hostname));
  31     registry.verify_cookies_redirects = config_get_boolean("registry", "verify browser cookies support", 1);
  32
  33     setenv("NETDATA_REGISTRY_HOSTNAME", registry.hostname, 1);
  34     setenv("NETDATA_REGISTRY_URL", registry.registry_to_announce, 1);
  35
  36     registry.max_url_length = (size_t)config_get_number("registry", "max URL length", 1024);
  37     if(registry.max_url_length < 10) {
  38         registry.max_url_length = 10;
  39         config_set_number("registry", "max URL length", (long long)registry.max_url_length);
  40     }
  41
  42     registry.max_name_length = (size_t)config_get_number("registry", "max URL name length", 50);
  43     if(registry.max_name_length < 10) {
  44         registry.max_name_length = 10;
  45         config_set_number("registry", "max URL name length", (long long)registry.max_name_length);
  46     }
  47
  48     // initialize entries counters
  49     registry.persons_count = 0;
  50     registry.machines_count = 0;
  51     registry.usages_count = 0;
  52     registry.urls_count = 0;
  53     registry.persons_urls_count = 0;
  54     registry.machines_urls_count = 0;
  55
  56     // initialize memory counters
  57     registry.persons_memory = 0;
  58     registry.machines_memory = 0;
  59     registry.urls_memory = 0;
  60     registry.persons_urls_memory = 0;
  61     registry.machines_urls_memory = 0;
  62
  63     // initialize locks
  64     pthread_mutex_init(&registry.lock, NULL);
  65
  66     // create dictionaries
  67     registry.persons = dictionary_create(DICTIONARY_FLAGS);
  68     registry.machines = dictionary_create(DICTIONARY_FLAGS);
  69     avl_init(&registry.registry_urls_root_index, registry_url_compare);
  70
  71     // load the registry database
  72     if(registry.enabled) {
  73         registry_log_open();
  74         registry_db_load();
  75         registry_log_load();
  76
  77         if(unlikely(registry_db_should_be_saved()))
  78             registry_db_save();
  79     }
  80
  81     return 0;
  82 }
  83
  84 void registry_free(void) {
  85     if(!registry.enabled) return;
  86
  87     // we need to destroy the dictionaries ourselves
  88     // since the dictionaries use memory we allocated
  89
  90     while(registry.persons->values_index.root) {
  91         REGISTRY_PERSON *p = ((NAME_VALUE *)registry.persons->values_index.root)->value;
  92         registry_person_del(p);
  93     }
  94
  95     while(registry.machines->values_index.root) {
  96         REGISTRY_MACHINE *m = ((NAME_VALUE *)registry.machines->values_index.root)->value;
  97
  98         // fprintf(stderr, "\nMACHINE: '%s', first: %u, last: %u, usages: %u\n", m->guid, m->first_t, m->last_t, m->usages);
  99
 100         while(m->machine_urls->values_index.root) {
 101             REGISTRY_MACHINE_URL *mu = ((NAME_VALUE *)m->machine_urls->values_index.root)->value;
 102
 103             // fprintf(stderr, "\tURL: '%s', first: %u, last: %u, usages: %u, flags: 0x%02x\n", mu->url->url, mu->first_t, mu->last_t, mu->usages, mu->flags);
 104
 105             //debug(D_REGISTRY, "Registry: destroying persons dictionary from url '%s'", mu->url->url);
 106             //dictionary_destroy(mu->persons);
 107
 108             debug(D_REGISTRY, "Registry: deleting url '%s' from person '%s'", mu->url->url, m->guid);
 109             dictionary_del(m->machine_urls, mu->url->url);
 110
 111             debug(D_REGISTRY, "Registry: unlinking url '%s' from machine", mu->url->url);
 112             registry_url_unlink(mu->url);
 113
 114             debug(D_REGISTRY, "Registry: freeing machine url");
 115             freez(mu);
 116         }
 117
 118         debug(D_REGISTRY, "Registry: deleting machine '%s' from machines registry", m->guid);
 119         dictionary_del(registry.machines, m->guid);
 120
 121         debug(D_REGISTRY, "Registry: destroying URL dictionary of machine '%s'", m->guid);
 122         dictionary_destroy(m->machine_urls);
 123
 124         debug(D_REGISTRY, "Registry: freeing machine '%s'", m->guid);
 125         freez(m);
 126     }
 127
 128     // and free the memory of remaining dictionary structures
 129
 130     debug(D_REGISTRY, "Registry: destroying persons dictionary");
 131     dictionary_destroy(registry.persons);
 132
 133     debug(D_REGISTRY, "Registry: destroying machines dictionary");
 134     dictionary_destroy(registry.machines);
 135 }
 136