TWS_REQ_STATE_FREE
sc->reqs[i].state = TWS_REQ_STATE_FREE;
if ( sc->reqs[type].state == TWS_REQ_STATE_FREE ) {
req->state = TWS_REQ_STATE_FREE;
req->state = TWS_REQ_STATE_FREE;
if ( r->state != TWS_REQ_STATE_FREE ) {
r->state = TWS_REQ_STATE_FREE;
if ( r->state != TWS_REQ_STATE_FREE ) {
r->state = TWS_REQ_STATE_FREE;
req->state = TWS_REQ_STATE_FREE;
req->state = TWS_REQ_STATE_FREE;
req->state = TWS_REQ_STATE_FREE;