/*
* Keyboard callback function
* Keys and their effects:
* a/A: toggle animation
* 1: switch to camera position 1
* 2: switch to camera position 2
* 5: toggle light source 1
* 6: toggle light source 2
* 7/d/D: toggle disco lights
* q/Q: quit program
*/
void keyboard(unsigned char key, int x, int y) {
switch (key) {
case 'A':
case 'a':
toggleAnimation();
break;
case 'D':
case 'd':
toggleDisco();
break;
case '1':
switchCamera(0);
break;
case '2':
switchCamera(1);
break;
case '5':
toggleLight(0);
break;
case '6':
toggleLight(1);
break;
case 'Q':
case 'q':
exit(0);
break;
default:
break;
}
}
/**
* \see trafficlight.h
*/
void runTrafficLight()
{
/* initial state */
enum Event event = NO_EVENT;
struct StateClass state = states[RED];
toggleLight(RED_LIGHT, ON);
timer(RED_TIME, STANDBY);
/* state-machine loop */
while (1)
{
event = checkEvent();
if (event != NO_EVENT) // do only if something happend
{
state = state.gotoNextState(event); // handle next state
}
}
}
void RequestModule::serveRequest(Request request, Input input_parameters[INPUT_PARAMETER_MAX_COUNT]) {
// Authorizes the request
if(! SecurityModule::authorizeRequest(request, input_parameters)) {
// The request has not been authorized
CommunicationModule::sendErrorResponse(UNAUTHORIZED);
return;
}
// Serves the request
switch(request) {
case ADD_USER : {
addUser(input_parameters[1], input_parameters[2]);
break;
}
case CHANGE_PASSWORD : {
changePassword(input_parameters[0], input_parameters[1]);
break;
}
case LOGIN : {
login(input_parameters[0], input_parameters[1]);
break;
}
case LOGOUT : {
logout(input_parameters[0]);
break;
}
case REFRESH_TTL : {
refreshTtl(input_parameters[0]);
break;
}
case REMOVE_USER : {
removeUser(input_parameters[1]);
break;
}
case REQUEST_STATE : {
requestState();
break;
}
case REQUEST_USERS : {
requestUsers();
break;
}
case TOGGLE_LIGHT : {
toggleLight();
break;
}
case TOGGLE_LOCK : {
toggleLock();
break;
}
}
}
/**
* \see trafficlight.h
*/
void runTrafficLight()
{
/* initial state */
enum Event event = NO_EVENT;
enum State state = RED;
toggleLight(RED_LIGHT, ON);
timer(RED_TIME, STANDBY);
/* state machine loop */
while (1)
{
event = checkEvent(); // check if an event has been triggered
switch (event)
{
case STANDBY:
if (state == RED)
{
state = RED_YELLOW;
handleStandby();
}
break;
case GO:
if (state == RED_YELLOW)
{
state = GREEN;
handleGo();
}
break;
case PREPARE_TO_STOP:
if (state == GREEN)
{
state = GREEN_BLINKING;
handlePrepareToStop();
}
break;
case REPEAT:
if (state == GREEN_BLINKING)
{
handleRepeatGreen();
}
else if (state == YELLOW_BLINKING)
{
handleRepeatYellow();
}
break;
case STOP:
if (state == GREEN_BLINKING)
{
state = YELLOW;
handleStop();
}
break;
case WAIT:
if (state == YELLOW)
{
state = RED;
handleWait();
}
break;
case IDLE:
if (state == RED)
{
state = YELLOW_BLINKING;
handleIdle();
}
case RESET:
if (state == YELLOW_BLINKING)
{
state = RED;
handleReset();
}
break;
}
}
}
