static struct node *
gossip_add_node_to_rack(struct server_pool *sp, struct string *dc, struct gossip_rack *g_rack,
struct string *address, struct string *ip, struct string *port, struct dyn_token *token)
{
rstatus_t status;
log_debug(LOG_VERB, "gossip_add_node_to_rack : dc[%.*s] rack[%.*s] address[%.*s] ip[%.*s] port[%.*s]",
dc->len, dc->data, g_rack->name, address->len, address->data, ip->len, ip->data, port->len, port->data);
int port_i = dn_atoi(port->data, port->len);
if (port_i == 0) {
return NULL; //bad data
}
struct node *gnode = (struct node *) array_push(&g_rack->nodes);
node_init(gnode);
status = string_copy(&gnode->dc, dc->data, dc->len);
status = string_copy(&gnode->rack, g_rack->name.data, g_rack->name.len);
status = string_copy(&gnode->name, ip->data, ip->len);
status = string_copy(&gnode->pname, address->data, address->len); //ignore the port for now
gnode->port = port_i;
struct dyn_token * gtoken = &gnode->token;
copy_dyn_token(token, gtoken);
g_rack->nnodes++;
//add into dicts
dictAdd(g_rack->dict_name_nodes, &gnode->name, gnode);
dictAdd(g_rack->dict_token_nodes, token_to_string(token), gnode);
return gnode;
}
static rstatus_t
dnode_peer_add_node(struct server_pool *sp, struct node *node)
{
rstatus_t status;
struct array *peers = &sp->peers;
struct server *s = array_push(peers);
s->owner = sp;
uint32_t i,nelem;
s->idx = array_idx(peers, s);
//log_debug(LOG_VERB, "node rack_name : '%.*s'", node->rack.len, node->rack.data);
//log_debug(LOG_VERB, "node dc_name : '%.*s'", node->dc.len, node->dc.data);
//log_debug(LOG_VERB, "node address : '%.*s'", node->pname.len, node->pname.data);
//log_debug(LOG_VERB, "node ip : '%.*s'", node->name.len, node->name.data);
string_copy(&s->pname, node->pname.data, node->pname.len);
string_copy(&s->name, node->name.data, node->name.len);
string_copy(&s->rack, node->rack.data, node->rack.len);
string_copy(&s->dc, node->dc.data, node->dc.len);
s->port = (uint16_t) node->port;
s->is_local = node->is_local;
s->state = node->state;
s->processed = 0;
array_init(&s->tokens, 1, sizeof(struct dyn_token));
struct dyn_token *src_token = &node->token;
struct dyn_token *dst_token = array_push(&s->tokens);
copy_dyn_token(src_token, dst_token);
struct sockinfo *info = dn_alloc(sizeof(*info)); //need to free this
dn_resolve(&s->name, s->port, info);
s->family = info->family;
s->addrlen = info->addrlen;
s->addr = (struct sockaddr *)&info->addr; //TODOs: fix this by copying, not reference
s->ns_conn_q = 0;
TAILQ_INIT(&s->s_conn_q);
s->next_retry = 0LL;
s->failure_count = 0;
s->is_seed = node->is_seed;
log_debug(LOG_VERB, "add a node to peer %"PRIu32" '%.*s'",
s->idx, s->pname.len, s->pname.data);
dnode_peer_relink_conn_owner(sp);
status = dnode_peer_pool_run(sp);
if (status != DN_OK)
return status;
status = dnode_peer_each_preconnect(s, NULL);
return status;
}
static rstatus_t
gossip_pool_each_init(void *elem, void *data)
{
rstatus_t status;
struct server_pool *sp = elem;
gn_pool.ctx = sp->ctx;
gn_pool.name = &sp->name;
gn_pool.idx = sp->idx;
gn_pool.g_interval = sp->g_interval;
//dictDisableResize();
gn_pool.dict_dc = dictCreate(&string_table_dict_type, NULL);
gossip_set_seeds_provider(&sp->seed_provider);
uint32_t n_dc = array_n(&sp->datacenters);
if (n_dc == 0)
return DN_OK;
if (n_dc > 0) {
status = array_init(&gn_pool.datacenters, n_dc, sizeof(struct gossip_dc));
if (status != DN_OK) {
return status;
}
}
//add racks and datacenters
uint32_t dc_cnt = array_n(&sp->datacenters);
uint32_t dc_index;
for(dc_index = 0; dc_index < dc_cnt; dc_index++) {
struct datacenter *dc = array_get(&sp->datacenters, dc_index);
uint32_t rack_cnt = array_n(&dc->racks);
uint32_t rack_index;
for(rack_index = 0; rack_index < rack_cnt; rack_index++) {
struct rack *rack = array_get(&dc->racks, rack_index);
if (dictFind(gn_pool.dict_dc, rack->dc) == NULL) {
struct gossip_dc *g_dc = array_push(&gn_pool.datacenters);
gossip_dc_init(g_dc, rack->dc);
dictAdd(gn_pool.dict_dc, &g_dc->name, g_dc);
}
struct gossip_dc *g_dc = dictFetchValue(gn_pool.dict_dc, rack->dc);
if (dictFind(g_dc->dict_rack, rack->name) == NULL) {
log_debug(LOG_VERB, "What?? No rack in Dict for rack : '%.*s'", g_dc->name);
struct gossip_rack *g_rack = array_push(&g_dc->racks);
gossip_rack_init(g_rack, rack->dc, rack->name);
dictAdd(g_dc->dict_rack, &g_rack->name, g_rack);
}
}
}
uint32_t i, nelem;
for (i = 0, nelem = array_n(&sp->peers); i < nelem; i++) {
struct server *peer = array_get(&sp->peers, i);
struct gossip_dc *g_dc = dictFetchValue(gn_pool.dict_dc, &peer->dc);
struct gossip_rack *g_rack = dictFetchValue(g_dc->dict_rack, &peer->rack);
struct node *gnode = array_push(&g_rack->nodes);
node_init(gnode);
string_copy(&gnode->dc, peer->dc.data, peer->dc.len);
string_copy(&gnode->rack, g_rack->name.data, g_rack->name.len);
string_copy(&gnode->name, peer->name.data, peer->name.len);
string_copy(&gnode->pname, peer->pname.data, peer->pname.len); //ignore the port for now
gnode->port = peer->port;
gnode->is_local = peer->is_local;
if (i == 0) { //Don't override its own state
gnode->state = sp->ctx->dyn_state; //likely it is JOINING state
gnode->ts = (uint64_t)time(NULL);
current_node = gnode;
char *b_address = get_broadcast_address(sp);
string_deinit(&gnode->name);
string_copy(&gnode->name, b_address, dn_strlen(b_address));
} else {
gnode->state = DOWN;
gnode->ts = 1010101; //make this to be a very aged ts
}
struct dyn_token *ptoken = array_get(&peer->tokens, 0);
copy_dyn_token(ptoken, &gnode->token);
//copy socket stuffs
g_rack->nnodes++;
//add into dicts
dictAdd(g_rack->dict_name_nodes, &gnode->name, gnode);
dictAdd(g_rack->dict_token_nodes, token_to_string(&gnode->token), gnode);
node_count++;
}
//gossip_debug();
status = gossip_start(sp);
if (status != DN_OK) {
goto error;
}
return DN_OK;
error:
gossip_destroy(sp);
return DN_OK;
}
