/**
* Initialize node stability caching.
*/
G_GNUC_COLD void
stable_init(void)
{
dbstore_kv_t kv = { KUID_RAW_SIZE, NULL, sizeof(struct lifedata), 0 };
dbstore_packing_t packing =
{ serialize_lifedata, deserialize_lifedata, NULL };
g_assert(NULL == db_lifedata);
g_assert(NULL == stable_sync_ev);
g_assert(NULL == stable_prune_ev);
/* Legacy: remove after 0.97 -- RAM, 2011-05-03 */
dbstore_move(settings_config_dir(), settings_dht_db_dir(), db_stable_base);
db_lifedata = dbstore_open(db_stable_what, settings_dht_db_dir(),
db_stable_base, kv, packing, STABLE_DB_CACHE_SIZE, kuid_hash, kuid_eq,
GNET_PROPERTY(dht_storage_in_memory));
dbmw_set_map_cache(db_lifedata, STABLE_MAP_CACHE_SIZE);
stable_prune_old();
stable_sync_ev = cq_periodic_main_add(STABLE_SYNC_PERIOD,
stable_sync, NULL);
stable_prune_ev = cq_periodic_main_add(STABLE_PRUNE_PERIOD,
stable_periodic_prune, NULL);
}
/**
* Initialize local key management.
*/
G_GNUC_COLD void
keys_init(void)
{
size_t i;
dbstore_kv_t kv = { KUID_RAW_SIZE, NULL, sizeof(struct keydata), 0 };
dbstore_packing_t packing =
{ serialize_keydata, deserialize_keydata, NULL };
g_assert(NULL == keys_periodic_ev);
g_assert(NULL == keys);
g_assert(NULL == db_keydata);
keys_periodic_ev = cq_periodic_main_add(LOAD_PERIOD * 1000,
keys_periodic_load, NULL);
keys = hikset_create(
offsetof(struct keyinfo, kuid), HASH_KEY_FIXED, KUID_RAW_SIZE);
install_periodic_kball(KBALL_FIRST);
db_keydata = dbstore_open(db_keywhat, settings_dht_db_dir(), db_keybase,
kv, packing, KEYS_DB_CACHE_SIZE, kuid_hash, kuid_eq,
GNET_PROPERTY(dht_storage_in_memory));
for (i = 0; i < G_N_ELEMENTS(decimation_factor); i++)
decimation_factor[i] = pow(KEYS_DECIMATION_BASE, i);
values_init();
keys_init_keyinfo();
keys_sync_ev = cq_periodic_main_add(KEYS_SYNC_PERIOD, keys_sync, NULL);
}
/**
* Create new aging container, where keys/values expire and need to be freed.
* Values are either integers (cast to pointers) or refer to real objects.
*
* @param delay the aging delay, in seconds, for entries
* @param hash the hashing function for the keys in the hash table
* @param eq the equality function for the keys in the hash table
* @param kvfree the key/value pair freeing callback, NULL if none.
*
* @return opaque handle to the container.
*/
aging_table_t *
aging_make(int delay, hash_fn_t hash, eq_fn_t eq, free_keyval_fn_t kvfree)
{
aging_table_t *ag;
WALLOC0(ag);
ag->magic = AGING_MAGIC;
ag->table = hikset_create_any(
offsetof(struct aging_value, key),
NULL == hash ? pointer_hash : hash, eq);
ag->kvfree = kvfree;
delay = MAX(delay, 1);
delay = MIN(delay, INT_MAX / 1000);
ag->delay = delay;
elist_init(&ag->list, offsetof(struct aging_value, lk));
/*
* If the callout queue does not run in the thread that is creating
* this table, then concurrent accesses are bound to happen.
* Therefore, make the table thread-safe.
*/
if (cq_main_thread_id() != thread_small_id())
aging_thread_safe(ag);
ag->gc_ev = cq_periodic_main_add(AGING_CALLOUT, aging_gc, ag);
aging_check(ag);
return ag;
}
/**
* Initialize security token caching.
*/
G_GNUC_COLD void
tcache_init(void)
{
dbstore_kv_t kv = { KUID_RAW_SIZE, NULL, sizeof(struct tokdata),
sizeof(struct tokdata) + MAX_INT_VAL(uint8) };
dbstore_packing_t packing =
{ serialize_tokdata, deserialize_tokdata, free_tokdata };
g_assert(NULL == db_tokdata);
g_assert(NULL == tcache_prune_ev);
/* Legacy: remove after 0.97 -- RAM, 2011-05-03 */
dbstore_move(settings_config_dir(), settings_dht_db_dir(), db_tcache_base);
db_tokdata = dbstore_create(db_tcache_what, settings_dht_db_dir(),
db_tcache_base, kv, packing, TOK_DB_CACHE_SIZE, kuid_hash, kuid_eq,
GNET_PROPERTY(dht_storage_in_memory));
dbmw_set_map_cache(db_tokdata, TOK_MAP_CACHE_SIZE);
dbmw_set_debugging(db_tokdata, &tcache_dbmw_dbg);
token_life = MIN(TOK_LIFE, token_lifetime());
if (GNET_PROPERTY(dht_tcache_debug))
g_debug("DHT cached token lifetime set to %u secs",
(unsigned) token_life);
tcache_prune_ev = cq_periodic_main_add(TCACHE_PRUNE_PERIOD,
tcache_periodic_prune, NULL);
}
/**
* Initialize GUID management.
*/
G_GNUC_COLD void
guid_init(void)
{
dbstore_kv_t kv = {
sizeof(guid_t), NULL, sizeof(struct guiddata),
1 + sizeof(struct guiddata) /* Version byte not held in structure */
};
dbstore_packing_t packing = {
serialize_guiddata, deserialize_guiddata, NULL
};
char rev; /* NUL means stable release */
g_assert(NULL == db_guid);
guid_gen_syndrome_table();
rev = product_get_revchar();
gtkg_version_mark =
guid_gtkg_encode_version(product_get_major(),
product_get_minor(), '\0' == rev);
if (GNET_PROPERTY(node_debug))
g_debug("GTKG version mark is 0x%x", gtkg_version_mark);
/*
* Validate that guid_random_muid() correctly marks GUIDs as being GTKG's.
*/
{
struct guid guid_buf;
guid_random_muid(&guid_buf);
g_assert(guid_is_gtkg(&guid_buf, NULL, NULL, NULL));
}
db_guid = dbstore_open(db_guid_what, settings_gnet_db_dir(),
db_guid_base, kv, packing, 1,
guid_hash, guid_eq, FALSE);
guid_prune_old();
guid_prune_ev = cq_periodic_main_add(
GUID_PRUNE_PERIOD, guid_periodic_prune, NULL);
guid_sync_ev = cq_periodic_main_add(
GUID_SYNC_PERIOD, guid_periodic_sync, NULL);
}
/**
* Initialize background task scheduling.
*/
void
bg_init(void)
{
/*
* Initially, the periodic event providing "scheduling ticks" triggers
* every second. This time is adjusted when there is work to do so
* that background tasks can nicely blend in the middle of other activities.
*/
bg_ticker.period = BG_TICK_IDLE;
bg_ticker.pev = cq_periodic_main_add(BG_TICK_IDLE, bg_sched_timer, NULL);
}
/**
* UDP layer startup
*/
void
udp_init(void)
{
/*
* Limit sending of UDP pings to 1 per UDP_PING_FREQ seconds.
*/
udp_aging_pings = aging_make(UDP_PING_FREQ,
host_addr_hash_func, host_addr_eq_func, wfree_host_addr);
udp_pings = hash_list_new(guid_hash, guid_eq);
udp_ping_ev = cq_periodic_main_add(UDP_PING_PERIODIC_MS,
udp_ping_timer, NULL);
}