waiter = xmalloc(sizeof *waiter);
waiter->seq = seq;
hmap_insert(&seq->waiters, &waiter->hmap_node, hash);
+ waiter->ovsthread_id = id;
waiter->value = value;
waiter->thread = seq_thread_get();
list_push_back(&waiter->thread->waiters, &waiter->list_node);