/**
* The KUID of the node has changed: remove its entry if it had one and make
* sure we have an entry for the new KUID.
*
* @param kn the old node
* @param rn the replacing node
*/
void
stable_replace(const knode_t *kn, const knode_t *rn)
{
struct lifedata *ld;
knode_check(kn);
knode_check(rn);
g_assert(rn->flags & KNODE_F_ALIVE);
ld = get_lifedata(kn->id);
if (NULL == ld)
return; /* Node was not recorded in the "stable" set */
if (GNET_PROPERTY(dht_stable_debug)) {
g_debug("DHT STABLE removing obsolete %s, now at %s",
knode_to_string(kn), knode_to_string2(rn));
}
/*
* Remove the old node and create an entry for the new one.
*/
dbmw_delete(db_lifedata, kn->id->v);
gnet_stats_dec_general(GNR_DHT_STABLE_NODES_HELD);
stable_record_activity(rn);
}
/**
* Delete pubdata from database.
*/
static void
delete_pubdata(const sha1_t *sha1)
{
dbmw_delete(db_pubdata, sha1);
if (GNET_PROPERTY(publisher_debug) > 2) {
shared_file_t *sf = shared_file_by_sha1(sha1);
g_debug("PUBLISHER SHA-1 %s %s\"%s\" reclaimed",
sha1_to_string(sha1),
(sf && sf != SHARE_REBUILDING && shared_file_is_partial(sf)) ?
"partial " : "",
(sf && sf != SHARE_REBUILDING) ? shared_file_name_nfc(sf) : "");
shared_file_unref(&sf);
}
}
/**
* Delete known-to-be existing token data for specified KUID from database.
*/
static void
delete_tokdata(const kuid_t *id)
{
dbmw_delete(db_tokdata, id);
gnet_stats_dec_general(GNR_DHT_CACHED_TOKENS_HELD);
if (GNET_PROPERTY(dht_tcache_debug) > 2)
g_debug("DHT TCACHE security token from %s reclaimed",
kuid_to_hex_string(id));
if (GNET_PROPERTY(dht_tcache_debug_flags) & DBG_DSF_USR1) {
g_debug("DHT TCACHE %s: stats=%s, count=%zu, id=%s",
G_STRFUNC, uint64_to_string(
gnet_stats_get_general(GNR_DHT_CACHED_TOKENS_HELD)),
dbmw_count(db_tokdata), kuid_to_hex_string(id));
}
}
/**
* Reclaim key info and data.
*
* @param ki the keyinfo to reclaim
* @param can_remove whether to remove from the `keys' set
*/
static void
keys_reclaim(struct keyinfo *ki, bool can_remove)
{
g_assert(ki);
g_assert(0 == ki->values);
if (GNET_PROPERTY(dht_storage_debug) > 2)
g_debug("DHT STORE key %s reclaimed", kuid_to_hex_string(ki->kuid));
dbmw_delete(db_keydata, ki->kuid);
if (can_remove)
hikset_remove(keys, &ki->kuid);
gnet_stats_dec_general(GNR_DHT_KEYS_HELD);
if (ki->flags & DHT_KEY_F_CACHED)
gnet_stats_dec_general(GNR_DHT_CACHED_KEYS_HELD);
kuid_atom_free_null(&ki->kuid);
ki->magic = 0;
WFREE(ki);
}