RCVMODE_NONE
state->receive_mode = RCVMODE_NONE;
state->receive_mode = RCVMODE_NONE;
enum receive_mode cur_receive_mode = RCVMODE_NONE;
if (cur_receive_mode == RCVMODE_NONE) {
if (state->receive_mode == RCVMODE_NONE) {
if (state->receive_mode != RCVMODE_NONE) {
state->receive_mode = RCVMODE_NONE;
state->receive_mode = RCVMODE_NONE;