OS shutdown

We have the command the send the sysmgr to reboot by using

sys_cmd_t msg;

msg.i.type = _SYS_CMD;
msg.i.cmd = _SYS_CMD_REBBOT;

MsgSendnc(SYSMGR_COID, &msg.i, sizeof(msg.i), NULL,0);




Do we have the such command but just tell neutrino to shutdown without
reboot ?

In QNX4, we can send the command SHUTDOWN to Proc32 without reboot

Thx