int log_current_epoch(void)
{
if (!current_vnode_info)
return update_epoch_log(sys->epoch, NULL, 0);
return update_epoch_log(sys->epoch, current_vnode_info->nodes,
current_vnode_info->nr_nodes);
}
static void update_cluster_info(struct join_message *msg,
struct sd_node *joined, struct sd_node *nodes, size_t nr_nodes)
{
eprintf("status = %d, epoch = %d, %x, %d\n", msg->cluster_status,
msg->epoch, msg->result, sys->join_finished);
if (sys_stat_join_failed())
return;
if (!sys->join_finished)
finish_join(msg, joined, nodes, nr_nodes);
sys->nodes[sys->nr_nodes++] = *joined;
qsort(sys->nodes, sys->nr_nodes, sizeof(*sys->nodes), node_cmp);
if (msg->cluster_status == SD_STATUS_OK ||
msg->cluster_status == SD_STATUS_HALT) {
if (msg->inc_epoch) {
sys->epoch++;
update_epoch_log(sys->epoch);
update_epoch_store(sys->epoch);
}
/* Fresh node */
if (!sys_stat_ok() && !sys_stat_halt()) {
set_cluster_copies(sys->nr_copies);
set_cluster_flags(sys->flags);
set_cluster_ctime(msg->ctime);
}
}
update_vnode_info();
sys_stat_set(msg->cluster_status);
print_node_list(sys->nodes, sys->nr_nodes);
}
static void finish_join(struct join_message *msg, struct sd_node *joined,
struct sd_node *nodes, size_t nr_nodes)
{
int i;
sys->nr_copies = msg->nr_copies;
sys->epoch = msg->epoch;
/* add nodes execept for newly joined one */
for (i = 0; i < nr_nodes; i++) {
if (node_eq(nodes + i, joined))
continue;
sys->nodes[sys->nr_nodes++] = nodes[i];
}
qsort(sys->nodes, sys->nr_nodes, sizeof(*sys->nodes), node_cmp);
if (msg->cluster_status != SD_STATUS_OK) {
int nr_leave_nodes;
uint32_t le;
nr_leave_nodes = msg->nr_leave_nodes;
le = get_latest_epoch();
for (i = 0; i < nr_leave_nodes; i++) {
struct node *n;
if (find_entry_list(&msg->leave_nodes[i], &sys->leave_list) ||
!find_entry_epoch(&msg->leave_nodes[i], le)) {
continue;
}
n = zalloc(sizeof(*n));
if (!n)
panic("failed to allocate memory\n");
n->ent = msg->leave_nodes[i];
list_add_tail(&n->list, &sys->leave_list);
}
}
sys->join_finished = 1;
if ((msg->cluster_status == SD_STATUS_OK ||
msg->cluster_status == SD_STATUS_HALT) && msg->inc_epoch)
update_epoch_log(sys->epoch);
if (!sd_store && strlen((char *)msg->store)) {
sd_store = find_store_driver((char *)msg->store);
if (sd_store) {
sd_store->init(obj_path);
if (set_cluster_store(sd_store->name) != SD_RES_SUCCESS)
panic("failed to store into config file\n");
} else
panic("backend store %s not supported\n", msg->store);
}
}
