thmap_stage_gc
ref = thmap_stage_gc(thmap);
garbage = thmap_stage_gc(wg->wg_sessions_byindex);
garbage_byname = thmap_stage_gc(wg->wg_peers_byname);
garbage_bypubkey = thmap_stage_gc(wg->wg_peers_bypubkey);
garbage_byname = thmap_stage_gc(wg->wg_peers_byname);
garbage_bypubkey = thmap_stage_gc(wg->wg_peers_bypubkey);
gcref = thmap_stage_gc(cd->cd_map);
thmap_gc(pm->addr_map, thmap_stage_gc(pm->addr_map));
ref = thmap_stage_gc(t->t_map);
thgc = thmap_stage_gc(emap);
void * thmap_stage_gc(thmap_t *);