int Delay(int ticks)
{
int clock_tid;
int r, t = MyTid();
char msg[5];
char *ip;
clock_tid = WhoIs("clck");
clock_tid = 2;
msg[0] = 'd';
ip = (char *)&ticks;
msg[1] = *ip++;
msg[2] = *ip++;
msg[3] = *ip++;
msg[4] = *ip++;
DPRINT("Delayed tid %d with msg \'%x%x%x%x%x\' to server at tid %d\r\n",
MyTid(), msg[0], msg[1], msg[2], msg[3], msg[4], clock_tid);
//if (t == 5) { bwputstr(COM2, "YAYA\r\n"); }
r = Send(clock_tid, msg, 5, NULL, 0);
if (r < 0) {
DPRINTERR("Send() from inside Delay() failed with retval %d\r\n", r);
PANIC;
}
return 0;
}
void task_codes (){
kprintf("Task id: %d\tParent task id: %d\n\r", MyTid(), MyParentTid());
Pass();
kprintf("Task id: %d\tParent task id: %d\n\r", MyTid(), MyParentTid());
Exit();
kprintf ("Unexpected return from Exit() at task_codes\n\r");
}
void other_user_task()
{
bwprintf(COM2, "My TID is %d and my parent's TID is %d.\n",
MyTid(), MyParentTid());
Pass();
bwprintf(COM2, "My TID is %d and my parent's TID is %d.\n",
MyTid(), MyParentTid());
Exit();
}
void lol()
{
int i;
bwprintf(COM2, "HAHA! I'm a new user task and my tid is '%d'\n", MyTid());
for(i = 0; i < 50000; ++i);
Exit();
}
void switch_server() {
server_tid = MyTid();
switches_init();
// Find the location server.
tid_t location_server_tid = -2;
do {
location_server_tid = WhoIs("LocationServer");
dlog("Location Server Tid %d\n", location_server_tid);
} while (location_server_tid < 0);
tid_t tid;
SwitchServerMessage msg, reply;
while (1) {
Receive(&tid, (char *) &msg, sizeof(msg));
switch (msg.type) {
case SET_SWITCH:
reply.type = SET_SWITCH_RESPONSE;
Reply(tid, (char *) &reply, sizeof(reply));
switch_set(msg.switch_no, msg.direction, location_server_tid);
break;
default:
break;
}
}
}
static void SensorSlave() {
SensorRequest_t t;
int status, byte;
unsigned int i, j, index, parent;
volatile uint32_t sensors[TRAIN_SENSOR_COUNT * TRAIN_MODULE_COUNT] = {0};
parent = MyParentTid();
debug("SensorSlave: Tid %d", MyTid());
t.type = SENSOR_RETURNED;
t.sensor = (uint32_t)sensors;
while (true) {
pollSensors();
for (i = 0; i < TRAIN_MODULE_COUNT; ++i) {
index = i * TRAIN_SENSOR_COUNT;
byte = trgetchar();
for (j = 0; j < TRAIN_SENSOR_COUNT / 2; ++j) {
sensors[index++] = EXTRACT_BIT(byte, (TRAIN_SENSOR_COUNT / 2) - j - 1) & 1;
}
byte = trgetchar();
for (; j < TRAIN_SENSOR_COUNT; ++j) {
sensors[index++] = EXTRACT_BIT(byte, TRAIN_SENSOR_COUNT - j - 1) & 1;
}
}
Send(parent, &t, sizeof(t), &status, sizeof(status));
}
Exit();
}
void RPSClient_Initialize(RPSClient * client) {
client->tid = MyTid();
RNG_Initialize(&client->rng, client->tid);
client->server_id = WhoIs((char*) RPS_SERVER_NAME);
client->num_rounds_to_play = 5;
client->running = 1;
}
void RPSClient_Start() {
robprintfbusy((const unsigned char *)"RPSClient created, tid=%d\n", MyTid());
RPSClient client;
RPSClient_Initialize(&client);
// Want to play
robprintfbusy((const unsigned char *)"Client: %d - I want to play\n", client.tid);
RPSMessage * send_message;
RPSMessage * reply_message;
send_message = (RPSMessage *) client.send_buffer;
send_message->message_type= MESSAGE_TYPE_SIGN_UP;
Send(client.server_id, client.send_buffer, MESSAGE_SIZE, client.reply_buffer,MESSAGE_SIZE);
reply_message = (RPSMessage *) client.reply_buffer;
assert(reply_message->message_type == MESSAGE_TYPE_SIGN_UP_OK, "Client didn't sign up successfully");
int i;
for (i = 0; i < client.num_rounds_to_play; i++) {
RPSClient_PlayARound(&client);
Pass();
if (!client.running) {
robprintfbusy((const unsigned char *)"Client: %d - Quiting due to server shutdown\n", client.tid);
Exit();
}
}
RPSClient_Quit(&client);
Exit();
}
void RPSServer_Start() {
robprintfbusy((const unsigned char *)"RPSServer created tid=%d\n", MyTid());
int result = RegisterAs((char*) RPS_SERVER_NAME);
assert(result == 0, "RPSServer_Start failed to register name");
ChannelDescription terminal_channel;
terminal_channel.channel = COM2;
terminal_channel.speed = 115200;
robsetspeed( &terminal_channel);
RPSServer server;
RPSServer_Initialize(&server);
while(1) {
RPSServer_ProcessMessage(&server);
if (!server.running) {
break;
}
}
robprintfbusy((const unsigned char *)"RPSServer exited\n");
NameServerMessage * name_server_message = (NameServerMessage *) server.send_buffer;
NameServerMessage * reply_message = (NameServerMessage *) server.reply_buffer;
name_server_message->message_type = MESSAGE_TYPE_NAME_SERVER_SHUTDOWN;
Send(NAMESERVER_TID, server.send_buffer, MESSAGE_SIZE, server.reply_buffer, MESSAGE_SIZE);
assert(reply_message->message_type==MESSAGE_TYPE_ACK, "RPSServer didn't get ACK from name server");
Exit();
assert(0, "Shouldn't see me\n");
}
main() {
int taskB, taskC;
char strWrite[50];
sprintf(strWrite, "I am TaskA[%d], priority[%d] \n", MyTid(), MyPriority());
Write(strWrite, strLen(strWrite), WYSE);
Send(TASK_C, NULL,NULL,NULL,NULL);
sprintf(strWrite, "TaskA replied from TaskC\n");
Write(strWrite, strLen(strWrite), WYSE);
sprintf(strWrite, "I am TaskA[%d], priority[%d] \n", MyTid(), MyPriority());
Write(strWrite, strLen(strWrite), WYSE);
Exit();
}
void other_task() {
int mytid = MyTid();
int myparenttid = MyParentTid();
bwprintf( COM2, "My tid: %d\tMy parent tid:%d\n\r", mytid, myparenttid);
Pass();
bwprintf( COM2, "My tid: %d\tMy parent tid:%d\n\r", mytid, myparenttid);
Exit();
}
static void user_task3() {
child_2_tid = MyTid();
int p_tid = MyParentTid();
assert_int_equals(parent_tid, p_tid, "Basic Test: Child_2 Check Parent Tid");
Exit();
}
void NameServer_Initialize(NameServer * ns) {
ns->num_clients = 0;
ns->tid = MyTid();
int i;
for (i = 0; i < MAX_TASKS + 1; i++) {
ns->filled[i] = 0;
}
}
void clockTick() {
unsigned int time = 0;
int tid = MyTid();
while(1) {
AwaitEvent(EVENT_TIME_ELAP, NULL, 0);
time++;
bwprintf(COM2, "%d: %ds\n", tid, time);
}
}
void ipc1 () {
bwprintf (COM2, "ipc1: I am %d\r\n", MyTid());
bwprintf (COM2, "ipc1: Registering as LOL\r\n");
RegisterAs ("LOL"); RegisterAs ("POO");
bwprintf (COM2, "ipc1: Registration complete.\r\n");
bwprintf (COM2, "ipc1: WhoIs(\"LOL\") = %d\r\n",WhoIs("LOL"));
bwprintf (COM2, "ipc1: Exiting.\r\n");
bwprintf (COM2, "ipc1: WhoIs(\"POO\") = %d\r\n",WhoIs("POO"));
Exit();
}
void delayTask() {
int delayTicks, reply = 0, src;
Receive(&src, (char *)&delayTicks, sizeof(int));
Reply(src, (char *)&reply, sizeof(int));
DelayUntil(delayTicks);
Send(src, (char *)&delayTicks, sizeof(int), (char *)&reply, sizeof(int));
Destroy(MyTid());
}
void sensorWaitTask() {
int sensorNum, reply = 0, src;
Receive(&src, (char *)&sensorNum, sizeof(int));
Reply(src, (char *)&reply, sizeof(int));
waitOnSensor(sensorNum);
Send(src, (char *)&sensorNum, sizeof(int), (char *)&reply, sizeof(int));
Destroy(MyTid());
}
static void user_task2() {
int tid = MyTid();
assert_int_equals(child_1_tid, tid, "Basic Test: Child Check Tid");
int p_tid = MyParentTid();
assert_int_equals(parent_tid, p_tid, "Basic Test: Child Check Parent Tid");
flag = 1;
Exit();
}
void ClockServer_Initialize(ClockServer * server) {
server->tid = MyTid();
server->ticks = 0;
server->shutdown = 0;
server->running = 1;
int tid;
for (tid = 0; tid < MAX_TASKS + 1; tid++) {
server->tid_to_delay_until[tid] = 0;
}
}
int WaitAnySensor() {
int errno, status;
SensorRequest_t wait;
ASSERT(sensor_server_tid >= 0, "server TID not available");
wait.type = SENSOR_WAIT_ANY;
errno = Send(sensor_server_tid, &wait, sizeof(wait), &status, sizeof(status));
ASSERT(errno >= 0, "Error in send: %d got %d, sending to %d", MyTid(), errno, sensor_server_tid);
return status;
}
// -----------------------------------------------------------------------------------------------------------------------------------------------
// Sensors Server Notifier
// -----------------------------------------------------------------------------------------------------------------------------------------------
void sensors_server_notifier(){
bwdebug( DBG_SYS, SENSORS_SERVER_DEBUG_AREA, "SENSORS_SERVER_NOTIFIER: enters" );
// Initialization
Init_sensor_msg init_msg;
Sensor_msg sensor_msg;
Cmd_request cmd_request;
int sensor_server_tid, my_tid, last_recieved;
char *sensor_data;
bwdebug( DBG_SYS, SENSORS_SERVER_DEBUG_AREA, "SENSORS_SERVER_NOTIFIER: recieving init info" );
Receive( &sensor_server_tid, (char *)&init_msg, sizeof(init_msg) );
//Reply( sensor_server_tid, 0, 0 );
sensor_data = init_msg.sensor_data_buff;
int cmd_server_tid = WhoIs( COMMAND_SERVER_NAME );
bwassert( cmd_server_tid >= 0, "SENSORS SERVER: This task requires the command server to be able to operate." );
// Reset the sensors
bwdebug( DBG_SYS, SENSORS_SERVER_DEBUG_AREA, "SENSORS_SERVER_NOTIFIER: Resetting sensors" );
my_tid = MyTid();
cmd_request.type = QUERY_CMD_REQUEST;
cmd_request.cmd.cmd_type = RESET_SENSORS_CMD_TYPE;
cmd_request.cmd.sender_tid = my_tid;
Send( cmd_server_tid, ( char * ) &cmd_request, sizeof( cmd_request ), 0, 0 );
// Receive trash?
bwdebug( DBG_SYS, SENSORS_SERVER_DEBUG_AREA, "SENSORS_SERVER_NOTIFIER: recieving trash" );
cmd_request.type = QUERY_CMD_REQUEST;
cmd_request.cmd.cmd_type = QUERY_SENSORS_CMD_TYPE;
cmd_request.cmd.sensors = sensor_data;
Send( cmd_server_tid, ( char * ) &cmd_request, sizeof( cmd_request ), 0, 0 );
bwdebug( DBG_SYS, SENSORS_SERVER_DEBUG_AREA, "SENSORS_SERVER_NOTIFIER: Unblocking sensor server" );
Reply( sensor_server_tid, 0, 0 );
// Configure the messages.
sensor_msg.type = SENSOR_DATA_RECEIVED_MSG;
FOREVER{
last_recieved = Time();
// Get the data from the command server
Send( cmd_server_tid, ( char * ) &cmd_request, sizeof( cmd_request ), 0, 0 );
// Inform the sensor server that new data arrived
Send( sensor_server_tid, ( char * ) &sensor_msg, sizeof( sensor_msg ), 0, 0 );
//DelayUntil( last_recieved + 100 / SENSOR_QUERY_FREQENCY );
Delay( 20 ); // 10
}
}
int FreeSensor(unsigned int id) {
int errno, status;
SensorRequest_t wait;
ASSERT(sensor_server_tid >= 0, "server TID not available");
wait.type = SENSOR_FREE;
wait.sensor = id;
errno = Send(sensor_server_tid, &wait, sizeof(wait), &status, sizeof(status));
ASSERT(errno >= 0, "Error in send: %d got %d, sending to %d", MyTid(), errno, sensor_server_tid);
return status;
}
int LastSensorPoll(unsigned int *data) {
int errno, status;
SensorRequest_t poll;
ASSERT(sensor_server_tid >= 0, "server TID not available");
poll.type = SENSOR_LAST_POLL;
poll.sensor = (uint32_t)data;
errno = Send(sensor_server_tid, &poll, sizeof(poll), &status, sizeof(status));
ASSERT(errno >= 0, "Error in send: %d got %d, sending to %d", MyTid(), errno, sensor_server_tid);
return status;
}
void reverser() {
int reply = 0, src;
struct trainInfo info;
Receive(&src, (char *)&info, sizeof(struct trainInfo));
Reply(src, (char *)&reply, sizeof(int));
Delay(250);
//reverse command
Putc2(1, (char)15, (char)info.number);
//back to speed command
Putc2(1, (char)info.speed, (char)info.number);
Destroy(MyTid());
}
int WaitWithTimeout(unsigned int id, unsigned int to) {
int errno, status;
SensorRequest_t msg;
ASSERT(sensor_server_tid >= 0, "server TID not available");
msg.type = SENSOR_WAIT_TIMEOUT;
msg.sensor = id;
msg.timeout = to;
errno = Send(sensor_server_tid, &msg, sizeof(msg), &status, sizeof(status));
ASSERT(errno >= 0, "Error in send: %d got %d, sending to %d\r\n", MyTid(), errno, sensor_server_tid);
return status;
}
void client_code(void) {
int ptid = MyParentTid();
int mtid = MyTid();
int i = 0;
int ticks = 0, times = 0;
struct dr req;
Send(ptid, &req, sizeof(struct dr), &req, sizeof(struct dr));
ticks = req.ticks;
times = req.iters;
for(i = 0; i < times; i++) {
DEBUG("task %d calls delay()", mtid);
Delay(req.ticks);
kprintf("Tid: %d\tDelay Interval: %d ms\t Times:%d\n\r", mtid, ticks*10, i+1);
}
kprintf("Task %d exits\n\r", mtid);
Exit();
}
void RPSServer_Initialize(RPSServer * server) {
server->tid = MyTid();
Queue_Initialize(&server->player_tid_queue);
server->player_1_tid = 0;
server->player_2_tid = 0;
server->is_playing_game = 0;
server->player_1_choice = NO_CHOICE;
server->player_2_choice = NO_CHOICE;
server->running = 1;
server->games_played = 0;
server->is_shutdown = 0;
int i;
for (i = 0; i < MAX_TASKS + 1; i++) {
server->signed_in_players[i] = 0;
}
}
static void user_task() {
did_run = 1;
parent_tid = MyTid();
child_1_tid = Create(MED_PRI, &user_task2);
int p_tid = MyParentTid();
assert_int_equals(-1, p_tid, "Basic Test: Parent Check Parent Tid");
Pass();
assert_int_equals(1, flag, "Basic Test: Parent Check Pass");
// Let child run first to test that the right return value is returned.
int tid = Create(HI_PRI, &user_task3);
assert_int_equals(child_2_tid, tid, "Basic Test: Parent Check Child_2 Tid");
Exit();
}
void nameServer( )
{
ns_tid = MyTid();
int name_space[MAX_NAME_HASH];
int clientTid, retVal, clientMsg,req;
for (retVal = 0; retVal < MAX_NAME_HASH; retVal++){
name_space[retVal] = NS_UNDEFINED_TID;
}
while(1)
{
//bwprintf(COM2, "nameserver calls receive\n");
req = Receive( (int *)&clientTid, (char*)&clientMsg, sizeof(int)/sizeof(char) );
bwprintf(COM2, "nameserver got clientTid: %d, req: %d\n\r", clientTid,req);
switch ( req )
{
case ( NS_REGISTER ):
if ( name_space[clientMsg] == NS_UNDEFINED_TID ) {
//bwprintf(COM2, "Registering %d to have tid %d\n",clientMsg,clientTid);
name_space[clientMsg] = clientTid;
retVal = NS_SUCCESS;
} else {
kprintf(COM2, "collision has occured\n");
retVal = NS_HASH_COLLISION;
}
break;
case ( NS_WHOIS ):
retVal = name_space[clientMsg];
retVal = (retVal == NS_UNDEFINED_TID) ? NS_NOT_FOUND : retVal;
break;
default :
//kprintf(COM2, "Invalid who is was made by Tid:%d\n", clientTid);
retVal = NS_INVALID_REQUEST;
}
Reply( clientTid, (char*)&retVal, sizeof( int )/sizeof(char) );
}
}
void multitrain_driver() {
MultiTrainDriver me;
initDriver(&me);
unsigned int naggCount = 0;
unsigned int updateStoppingDistanceCount = 0;
for (;;) {
int tid = -1;
MultiTrainDriverMsg actualMsg;
DriverMsg* msg = (DriverMsg*)&actualMsg;
msg->data3 = 0;
Receive(&tid, (char *)msg, sizeof(MultiTrainDriverMsg));
if (msg->type != REPORT_INFO &&
msg->type != QUERY_STOP_COUNT &&
msg->type != MULTI_TRAIN_DRIVER_COURIER &&
msg->type != SENSOR_TRIGGER &&
msg->type != DELTA_DISTANCE) {
Reply(tid, (char*)1, 0);
}
switch (msg->type) {
case SET_SPEED: {
if (!me.tailMode) {
Reply(msg->replyTid, (char*)1, 0);
}
groupSetSpeed(&me, msg->data2);
break;
}
case SENSOR_TRIGGER: {
if (me.tailMode && tid == me.sensorWatcher) {
Reply(tid, (char *)NULL, 0);
break;
}
if (me.tailMode) {
int isHandled = 0;
Send(me.trainId[0],
(char*)msg, sizeof(DriverMsg), (char *)&isHandled, sizeof(int));
Reply(tid, (char *)&isHandled, sizeof(int));
} else {
int isSensorReserved = QueryIsSensorReserved(&me, msg->data2, msg->data3);
if (isSensorReserved) {
// sensor is reserved
for (int i = 0; i < me.numTrainInGroup; i ++) {
int isHandled = 0;
Send(me.trainId[i],
(char*)msg, sizeof(DriverMsg), (char *)&isHandled, sizeof(int));
if (isHandled) {
break;
}
}
}
Reply(tid, (char *)NULL, 0);
}
break;
} // case
case NAVIGATE_NAGGER: {
if (me.tailMode) break;
updateInfo(&me);
if (me.routeRemaining != -1) {
if (!me.stopCommited) {
if (shouldStopNow(&me)) {
if (me.route.nodes[me.stopNode].num == REVERSE) {
//TrainDebug(&me, "Navi reversing.");
groupSetSpeed(&me, -1); // reverse
}
else {
//TrainDebug(&me, "Navi Nagger stopping.");
groupSetSpeed(&me, 0); // stopping
me.route.length = 0; // Finished the route.
me.testMode = 0;
me.routeRemaining = -1;
}
me.stopCommited = 1;
me.useLastSensorNow = 0;
me.stopNow = 0;
me.stopSensorHit = 0;
} else {
if ((++updateStoppingDistanceCount & 15) == 0) updateStopNode(&me);
}
}
}
if (me.nextSetSwitchNode != -1 && (++me.setSwitchNaggerCount & 3) == 0) {
trySetSwitch_and_getNextSwitch(&me);
}
if (me.rerouteCountdown-- == 0) {
if (me.testMode) {
int reserveStatus = makeReservation(&me, 440);
if (reserveStatus == RESERVE_FAIL) {
reroute(&me);
} else {
me.nextSetSwitchNode = -1;
updateSetSwitch(&me);
groupSetSpeed(&me, 8);
}
} else {
// reroute
if (me.route.length != 0) {
setRoute(&me, &(me.info[0].pos), &(me.routeMsg));
}
}
}
break;
}
case UPDATE_PREDICTION: {
if (me.tailMode) {
MultiTrainDriverCourierMsg cMsg;
cMsg.destTid = me.headTid;
cMsg.msg = actualMsg;
cMsg.msg.data = MyTid();
Reply(me.courier, (char *)&cMsg, sizeof(MultiTrainDriverCourierMsg));
break;
}
for (int i = 0; i < MAX_TRAIN_IN_GROUP; i++) {
if (actualMsg.data == me.trainId[i]) {
for (int j = 0; j < actualMsg.numSensors; j++) {
me.sensorToReserve[i][j] = actualMsg.sensors[j];
}
me.numSensorToReserve[i] = actualMsg.numSensors;
}
}
makeReservation(&me, me.info[0].maxStoppingDistance);
break;
}
case STOP_COMPLETED: {
// notify actual train controller.
if (me.tailMode) {
MultiTrainDriverCourierMsg cMsg;
cMsg.destTid = me.headTid;
cMsg.msg = actualMsg;
cMsg.msg.data = MyTid();
Reply(me.courier, (char *)&cMsg, sizeof(MultiTrainDriverCourierMsg));
break;
}
me.stoppedCount++;
if (me.stoppedCount == me.numTrainInGroup) {
makeReservation(&me, 1);
if (me.isReversing) {
handleReverse(&me);
} else if (me.route.length != 0) {
// Reroute.
setRoute(&me, &(me.info[0].pos), &(me.routeMsg));
}
}
if (!me.reserveTrackMode) {
clearReservation(me.trackManager, me.trainNum);
}
break;
}
case SET_ROUTE: {
Reply(msg->replyTid, (char*)1, 0);
me.routeMsg = *msg;
setRoute(&me, &(me.info[0].pos), msg);
break;
}
case GET_POSITION: {
if (me.tailMode) {
PrintDebug(me.ui, "Get position from a tail train ??");
break;
}
// If don't have any valid info yet, reply empty message
if (me.infoUpdater == -1) {
Reply(msg->replyTid, (char*)1, 0);
} else {
Reply(msg->replyTid, (char*)&(me.info[0]), sizeof(DumbDriverInfo));
}
break;
}
case FIND_POSITION: {
if (me.tailMode) {
PrintDebug(me.ui, "find position while merge????");
break;
}
me.reserveTrackMode = (msg->data2 == RESERVE);
PrintDebug(me.ui, "Train locking %d", me.trainNum);
// Only 1 train can lock at the same time.
lock(me.timeserver);
// begin finding position in a slow speed
DumbTrainSetSpeed(me.trainId[0], 5);
Reply(msg->replyTid, (char*)1, 0);
for (;;) {
Receive(&tid, (char*)msg, sizeof(MultiTrainDriverMsg));
Reply(tid, (char*)1, 0);
if (msg->type == SENSOR_TRIGGER) {
Send(me.trainId[0], (char*)msg,
sizeof(DriverMsg), (char*)NULL, 0);
DumbTrainSetSpeed(me.trainId[0], 0);
break;
} else if (msg->type == GET_POSITION) {
Reply(msg->replyTid, (char*)1, 0);
} else {
PrintDebug(me.ui, "WARNN Drop %d", msg->type);
}
}
DriverMsg dMsg;
dMsg.type = REPORT_INFO;
for (int i = 0; i < me.numTrainInGroup; i++) {
Send(me.trainId[i],
(char *)&dMsg, sizeof(DriverMsg),
(char*)&me.info[i], sizeof(DumbDriverInfo));
}
me.infoUpdater = Create(3, trainNavigateNagger);
unlock();
break;
}
case MERGE_HEAD: {
if (me.tailMode) {
PrintDebug(me.ui, "Cannot be a head when in tail mode??");
break;
}
me.reserveTrackMode = 1; // Head always reserves track.
// Other train controller's id.
me.trainId[me.numTrainInGroup] = msg->data2;
me.numTrainInGroup++;
Reply(msg->replyTid, (char*)1, 0);
DriverMsg dMsg;
dMsg.type = QUERY_STOP_COUNT;
int tailStopCount = 0;
Send(msg->data2, (char *)&dMsg, sizeof(DriverMsg), (char *)&tailStopCount, sizeof(int));
me.stoppedCount += tailStopCount;
dMsg.type = UPDATE_PARENT_ABOUT_PREDICTION;
Send(msg->data2, (char *)&dMsg, sizeof(DriverMsg), (char *)NULL, 0);
PrintDebug(me.ui, "merged. head is %d", me.trainNum);
break;
}
case MERGE_TAIL: {
if (me.tailMode) {
PrintDebug(me.ui, "Double merge tail??");
break;
}
// Enters courier mode that passes dumb_train msg to 'real' controller
me.tailMode = 1;
me.headTid = msg->data2;
clearReservation(me.trackManager, me.trainNum);
Reply(msg->replyTid, (char*)1, 0);
PrintDebug(me.ui, "Train %d is tail", me.trainNum);
break;
}
case SEPARATE_TAIL: {
if (!me.tailMode) {
PrintDebug(me.ui, "Not in tail mode..??"); break;
}
me.tailMode = 0;
me.headTid = 0;
// TODO, behaviour is not clearly defined yet.
// reserve my own track and prediction??
break;
}
case REPORT_INFO: {
if (!me.tailMode) {
PrintDebug(me.ui, "Report info Not in tail mode..??"); break;
}
// ASSUME ONLY 1 train when in tail mode.
Send(me.trainId[0], (char*)msg, sizeof(DriverMsg),
(char*)&me.info[0], sizeof(DumbDriverInfo));
// Reply the head that made query.
Reply(me.headTid, (char*)&me.info[0], sizeof(DumbDriverInfo));
break;
}
case DELTA_DISTANCE: {
if (!me.tailMode) {
PrintDebug(me.ui, "Delta distance and not in tail mode..??"); break;
}
// ASSUME ONLY 1 train when in tail mode.
Send(me.trainId[0], (char*)msg,
sizeof(DriverMsg) - sizeof(Position), (char*)1, 0);
// Reply the head that made query.
Reply(me.headTid, (char*)1, 0);
break;
}
case UPDATE_PARENT_ABOUT_PREDICTION: {
if (!me.tailMode) {
PrintDebug(me.ui, "%d Update Parent Not in tail mode..??", me.trainNum);
break;
}
// ASSUME ONLY 1 train when in tail mode.
Send(me.trainId[0], (char*)msg, sizeof(DriverMsg),
(char*)NULL, 0);
break;
}
case QUERY_STOP_COUNT: {
// asuumption: no tree strucutre
Reply(tid, (char *)&me.stoppedCount, sizeof(int));
break;
}
case MULTI_TRAIN_DRIVER_COURIER: {
// nothing
break;
}
case REVERSE_SPEED: {
if (!me.tailMode) {
PrintDebug(me.ui, "Reverse Speed Not in tail mode..??"); break;
}
for (int i = 0; i < me.numTrainInGroup; i++) {
Send(me.trainId[i], (char *)msg, sizeof(DriverMsg), (char*)1, 0);
}
break;
}
case QUERY_STOPPING_DISTANCE: {
if (!me.tailMode) {
PrintDebug(me.ui, "Query stopping dist Not in tail mode..??"); break;
}
int stoppingDist = 0;
// ASSUME ONLY 1 train when in tail mode.
Send(me.trainId[0], (char*)msg, sizeof(DriverMsg),
(char*)&stoppingDist, sizeof(int));
// Reply the head that made query.
Reply(me.headTid, (char*)&stoppingDist, sizeof(int));
break;
}
case HIT_SECONDARY: {
if (me.route.length != 0) {
PrintDebug(me.ui, "Hit secondary rerouting..");
groupSetSpeed(&me, 0);
}
break;
}
case SET_FOLLOWING_DISTANCE: {
me.minFollowingDist = msg->data2;
me.maxFollowingDist = msg->data3;
Reply(msg->replyTid, (char*)1, 0);
break;
}
default: {
PrintDebug(me.ui, "Not Handled %d", msg->type);
}
} // switch
} // for
}