void Task(void)
{
unsigned idleCount;
unsigned numCtxSwitches;
printString("Task started.\n");
while (1)
{
printString("Delaying task...\n");
YKDelayTask(2);
YKEnterMutex();
numCtxSwitches = YKCtxSwCount;
idleCount = YKIdleCount;
YKIdleCount = 0;
YKExitMutex();
printString("Task running after ");
printUInt(numCtxSwitches);
printString(" context switches! YKIdleCount is ");
printUInt(idleCount);
printString(".\n");
}
}
void TaskStat(void) /* a task to track statistics */
{
unsigned max, switchCount, idleCount;
int tmp;
YKDelayTask(1);
printString("Welcome to the YAK kernel\r\n");
printString("Determining CPU capacity\r\n");
YKDelayTask(1);
YKIdleCount = 0;
YKDelayTask(5);
max = YKIdleCount / 25;
YKIdleCount = 0;
YKNewTask(TaskPrime, (void *) &TaskPRMStk[TASK_STACK_SIZE], 32);
YKNewTask(TaskWord, (void *) &TaskWStk[TASK_STACK_SIZE], 10);
YKNewTask(TaskSpace, (void *) &TaskSStk[TASK_STACK_SIZE], 11);
YKNewTask(TaskPunc, (void *) &TaskPStk[TASK_STACK_SIZE], 12);
while (1)
{
YKDelayTask(20);
YKEnterMutex();
switchCount = YKCtxSwCount;
idleCount = YKIdleCount;
YKExitMutex();
printString ("<<<<< Context switches: ");
printInt((int)switchCount);
printString(", CPU usage: ");
tmp = (int) (idleCount/max);
printInt(100-tmp);
printString("% >>>>>\r\n");
YKEnterMutex();
YKCtxSwCount = 0;
YKIdleCount = 0;
YKExitMutex();
}
}
void STask(void) /* tracks statistics */
{
unsigned max, switchCount, idleCount;
int tmp;
YKDelayTask(1);
printString("Welcome to the YAK kernel\r\n");
printString("Determining CPU capacity\r\n");
YKDelayTask(1);
YKIdleCount = 0;
YKDelayTask(5);
max = YKIdleCount / 25;
YKIdleCount = 0;
YKNewTask(CharTask, (void *) &CharTaskStk[TASK_STACK_SIZE], 2);
YKNewTask(AllNumsTask, (void *) &AllNumsTaskStk[TASK_STACK_SIZE], 1);
YKNewTask(AllCharsTask, (void *) &AllCharsTaskStk[TASK_STACK_SIZE], 3);
while (1)
{
YKDelayTask(20);
YKEnterMutex();
switchCount = YKCtxSwCount;
idleCount = YKIdleCount;
YKExitMutex();
printString("<<<<< Context switches: ");
printInt((int)switchCount);
printString(", CPU usage: ");
tmp = (int) (idleCount/max);
printInt(100-tmp);
printString("% >>>>>\r\n");
YKEnterMutex();
YKCtxSwCount = 0;
YKIdleCount = 0;
YKExitMutex();
}
}
/*
* tracks statistics
*/
void StatTask(void) {
unsigned max, switchCount, idleCount;
int tmp;
YKDelayTask(1);
printString("Welcome to the YAK kernel\r\n");
printString("Determining CPU capacity\r\n");
YKDelayTask(1);
YKIdleCount = 0;
YKDelayTask(5);
max = YKIdleCount / 25;
YKIdleCount = 0;
YKNewTask(ArrivalTask, (void *) &ArrivalTaskStk[TASK_STACK_SIZE], 25);
YKNewTask(CommunicationTask, (void *) &CommunicationTaskStk[TASK_STACK_SIZE], 20);
while (1)
{
YKDelayTask(20);
YKEnterMutex();
switchCount = YKCtxSwCount;
idleCount = YKIdleCount;
YKExitMutex();
printString("<CS: ");
printInt((int)switchCount);
printString(", CPU: ");
tmp = (int) (idleCount/max);
printInt(100-tmp);
printString(">\r\n");
YKEnterMutex();
YKCtxSwCount = 0;
YKIdleCount = 0;
YKExitMutex();
}
}
void STask(void) // tracks statistics
{
unsigned max, switchCount, idleCount;
int tmp;
YKIdleCount = 0;
YKDelayTask(5);
max = YKIdleCount / 25;
YKIdleCount = 0;
//Start Simptris
SeedSimptris(SEED);
StartSimptris();
while (1)
{
YKDelayTask(20);
YKEnterMutex();
switchCount = YKCtxSwCount;
idleCount = YKIdleCount;
YKExitMutex();
printString("<CS: ");
printInt((int)switchCount);
printString(", CPU: ");
tmp = (int) (idleCount/max);
printInt(100-tmp);
printString(">\n\r");
YKEnterMutex();
YKCtxSwCount = 0;
YKIdleCount = 0;
YKExitMutex();
}
}
void TaskPunc(void)
{
while (1)
{
YKSemPend(PSemPtr);
printChar('"');
YKSemPost(WSemPtr);
YKSemPend(PSemPtr);
printChar(',');
YKSemPost(SSemPtr);
YKSemPend(PSemPtr);
printString("!\"\r\n");
YKSemPost(PSemPtr);
YKDelayTask(6);
}
}