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     snprintfz(filename, FILENAME_MAX, "%s/registry", netdata_configured_varlib_dir);
  11     registry.pathname = config_get("registry", "registry db directory", filename);
  12     if(mkdir(registry.pathname, 0770) == -1 && errno != EEXIST)
  13         fatal("Cannot create directory '%s'.", registry.pathname);
  14
  15     // filenames
  16     snprintfz(filename, FILENAME_MAX, "%s/netdata.public.unique.id", registry.pathname);
  17     registry.machine_guid_filename = config_get("registry", "netdata unique id file", filename);
  18     registry_get_this_machine_guid();
  19
  20     snprintfz(filename, FILENAME_MAX, "%s/registry.db", registry.pathname);
  21     registry.db_filename = config_get("registry", "registry db file", filename);
  22
  23     snprintfz(filename, FILENAME_MAX, "%s/registry-log.db", registry.pathname);
  24     registry.log_filename = config_get("registry", "registry log file", filename);
  25
  26     // configuration options
  27     registry.save_registry_every_entries = (unsigned long long)config_get_number("registry", "registry save db every new entries", 1000000);
  28     registry.persons_expiration = config_get_number("registry", "registry expire idle persons days", 365) * 86400;
  29     registry.registry_domain = config_get("registry", "registry domain", "");
  30     registry.registry_to_announce = config_get("registry", "registry to announce", "https://registry.my-netdata.io");
  31     registry.hostname = config_get("registry", "registry hostname", config_get("global", "hostname", localhost.hostname));
  32     registry.verify_cookies_redirects = config_get_boolean("registry", "verify browser cookies support", 1);
  33
  34     setenv("NETDATA_REGISTRY_HOSTNAME", registry.hostname, 1);
  35     setenv("NETDATA_REGISTRY_URL", registry.registry_to_announce, 1);
  36
  37     registry.max_url_length = (size_t)config_get_number("registry", "max URL length", 1024);
  38     if(registry.max_url_length < 10) {
  39         registry.max_url_length = 10;
  40         config_set_number("registry", "max URL length", (long long)registry.max_url_length);
  41     }
  42
  43     registry.max_name_length = (size_t)config_get_number("registry", "max URL name length", 50);
  44     if(registry.max_name_length < 10) {
  45         registry.max_name_length = 10;
  46         config_set_number("registry", "max URL name length", (long long)registry.max_name_length);
  47     }
  48
  49     // initialize entries counters
  50     registry.persons_count = 0;
  51     registry.machines_count = 0;
  52     registry.usages_count = 0;
  53     registry.urls_count = 0;
  54     registry.persons_urls_count = 0;
  55     registry.machines_urls_count = 0;
  56
  57     // initialize memory counters
  58     registry.persons_memory = 0;
  59     registry.machines_memory = 0;
  60     registry.urls_memory = 0;
  61     registry.persons_urls_memory = 0;
  62     registry.machines_urls_memory = 0;
  63
  64     // initialize locks
  65     pthread_mutex_init(&registry.lock, NULL);
  66
  67     // create dictionaries
  68     registry.persons = dictionary_create(DICTIONARY_FLAGS);
  69     registry.machines = dictionary_create(DICTIONARY_FLAGS);
  70     avl_init(&registry.registry_urls_root_index, registry_url_compare);
  71
  72     // load the registry database
  73     if(registry.enabled) {
  74         registry_log_open();
  75         registry_db_load();
  76         registry_log_load();
  77
  78         if(unlikely(registry_db_should_be_saved()))
  79             registry_db_save();
  80     }
  81
  82     return 0;
  83 }
  84
  85 void registry_free(void) {
  86     if(!registry.enabled) return;
  87
  88     // we need to destroy the dictionaries ourselves
  89     // since the dictionaries use memory we allocated
  90
  91     while(registry.persons->values_index.root) {
  92         REGISTRY_PERSON *p = ((NAME_VALUE *)registry.persons->values_index.root)->value;
  93         registry_person_del(p);
  94     }
  95
  96     while(registry.machines->values_index.root) {
  97         REGISTRY_MACHINE *m = ((NAME_VALUE *)registry.machines->values_index.root)->value;
  98
  99         // fprintf(stderr, "\nMACHINE: '%s', first: %u, last: %u, usages: %u\n", m->guid, m->first_t, m->last_t, m->usages);
 100
 101         while(m->machine_urls->values_index.root) {
 102             REGISTRY_MACHINE_URL *mu = ((NAME_VALUE *)m->machine_urls->values_index.root)->value;
 103
 104             // 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);
 105
 106             //debug(D_REGISTRY, "Registry: destroying persons dictionary from url '%s'", mu->url->url);
 107             //dictionary_destroy(mu->persons);
 108
 109             debug(D_REGISTRY, "Registry: deleting url '%s' from person '%s'", mu->url->url, m->guid);
 110             dictionary_del(m->machine_urls, mu->url->url);
 111
 112             debug(D_REGISTRY, "Registry: unlinking url '%s' from machine", mu->url->url);
 113             registry_url_unlink(mu->url);
 114
 115             debug(D_REGISTRY, "Registry: freeing machine url");
 116             freez(mu);
 117         }
 118
 119         debug(D_REGISTRY, "Registry: deleting machine '%s' from machines registry", m->guid);
 120         dictionary_del(registry.machines, m->guid);
 121
 122         debug(D_REGISTRY, "Registry: destroying URL dictionary of machine '%s'", m->guid);
 123         dictionary_destroy(m->machine_urls);
 124
 125         debug(D_REGISTRY, "Registry: freeing machine '%s'", m->guid);
 126         freez(m);
 127     }
 128
 129     // and free the memory of remaining dictionary structures
 130
 131     debug(D_REGISTRY, "Registry: destroying persons dictionary");
 132     dictionary_destroy(registry.persons);
 133
 134     debug(D_REGISTRY, "Registry: destroying machines dictionary");
 135     dictionary_destroy(registry.machines);
 136 }
 137