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/**
* @file unicast_fsm.c
* @brief Unicast client state machine
* @note Copyright (C) 2018 Richard Cochran <richardcochran@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA.
*/
#include "unicast_fsm.h"
enum unicast_state unicast_fsm(enum unicast_state state, enum unicast_event ev)
{
enum unicast_state next = state;
switch (state) {
case UC_WAIT:
switch (ev) {
case UC_EV_GRANT_ANN:
next = UC_HAVE_ANN;
break;
case UC_EV_SELECTED:
case UC_EV_GRANT_SYDY:
case UC_EV_UNSELECTED:
case UC_EV_CANCEL:
break;
}
break;
case UC_HAVE_ANN:
switch (ev) {
case UC_EV_GRANT_ANN:
break;
case UC_EV_SELECTED:
next = UC_NEED_SYDY;
break;
case UC_EV_GRANT_SYDY:
case UC_EV_UNSELECTED:
break;
case UC_EV_CANCEL:
next = UC_WAIT;
break;
}
break;
case UC_NEED_SYDY:
switch (ev) {
case UC_EV_GRANT_ANN:
case UC_EV_SELECTED:
break;
case UC_EV_GRANT_SYDY:
next = UC_HAVE_SYDY;
break;
case UC_EV_UNSELECTED:
next = UC_HAVE_ANN;
break;
case UC_EV_CANCEL:
next = UC_WAIT;
break;
}
break;
case UC_HAVE_SYDY:
switch (ev) {
case UC_EV_GRANT_ANN:
case UC_EV_SELECTED:
case UC_EV_GRANT_SYDY:
break;
case UC_EV_UNSELECTED:
next = UC_HAVE_ANN;
break;
case UC_EV_CANCEL:
next = UC_WAIT;
break;
}
break;
}
return next;
}
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