void handleNewPieceTask()
{
int type;
while(1)
{
//wait for a new piece to be created
YKSemPend(newPieceSEM);
YKEnterMutex();
type = NewPieceType;
/*printString("NEW PIECE id = ");
printInt(NewPieceID);
printString(" type = ");
printInt(NewPieceType);
printString(" column = ");
printInt(NewPieceColumn);
printString(" Orientation = ");
printInt(NewPieceOrientation);
printNewLine();//*/
YKExitMutex();
//Accessing global variables, so better be in mutex
if(type) //Straight piece
{
straightPieceHandler();
}
else //square piece
{
cornerPieceHandler();
}
}
}
void handleSendMovementTask()
{
struct movement *tmp; //movement vs Movement capitalized -> don't know which
while(1)
{
YKSemPend(receivedSEM);
tmp = (struct movement*) YKQPend(MsgQPtr); // get next msg
/*printString("send id = ");
printInt(tmp->id);
printString(" slide = ");
printInt(tmp->slide);
printString(" rotate = ");
printInt(tmp->rotate);
printNewLine();//*/
if(tmp->slide > -1) //slide the piece
{
SlidePiece(tmp->id, tmp->slide);
}
else // rotate the piece
{
RotatePiece(tmp->id, tmp->rotate);
}
}
}
void TaskWord(void)
{
while (1)
{
YKSemPend(WSemPtr);
printString("Hey");
YKSemPost(PSemPtr);
YKSemPend(WSemPtr);
printString("it");
YKSemPost(SSemPtr);
YKSemPend(WSemPtr);
printString("works");
YKSemPost(PSemPtr);
}
}
void TaskSpace(void)
{
while (1)
{
YKSemPend(SSemPtr);
printChar(' ');
YKSemPost(WSemPtr);
}
}
void TaskPunc(void)
{
while (1)
{
YKSemPend(PSemPtr);
printChar('"');
YKSemPost(WSemPtr);
YKSemPend(PSemPtr);
printChar(',');
YKSemPost(SSemPtr);
YKSemPend(PSemPtr);
printString("!\"\r\n");
YKSemPost(PSemPtr);
YKDelayTask(6);
}
}
void* YKQPend(YKQ *queue){
void* msg;
//check if head == tail
YKSemPend(queue->sem);
if(queue->head == -1){
printString("null value returned");
return NULL;
}
msg = queue->queue[queue->head++];
//update head(increment)
if(queue->head == queue->length)
queue->head = 0;
if(queue->head == queue->tail) // empty
queue->head = -1;
return msg;
}
/*
* Communicates with simptris
*/
void CommunicationTask(void) {
scmd* ncmd;
SeedSimptris((long) SEED);
StartSimptris();
printString("\nSimptris Started!\n");
while(1) {
ncmd = (scmd*) YKQPend(CmdQPtr);
if (ncmd->command == ROTATE) {
RotatePiece(ncmd->id, ncmd->parameter);
}
else {
SlidePiece(ncmd->id, ncmd->parameter);
}
YKSemPend(commandReceivedSem);
}
}
void TaskPrime(void) /* task that actually computes primes */
{
//stops at 32497
int curval = 1001;
int j,flag,lncnt;
int endval;
while (1)
{
YKSemPend(NSemPtr);
/* compute next range of primes */
lncnt = 0;
endval = curval + 500;
for ( ; curval < endval; curval += 2)
{
flag = 0;
for (j = 3; (j*j) < curval; j += 2)
{
if (curval % j == 0)
{
flag = 1;
break;
}
}
if (!flag)
{
printChar(' ');
printInt(curval);
lncnt++;
if (lncnt > 9)
{
printNewLine();
lncnt = 0;
}
}
}
printNewLine();
}
}