public static int AllocateCPUBudgetForThread(Thread theThread,
int requestedBudget,
int periodIndex)
{
int grantedCPU;
if (theThread == itsMainThread)
{
return(itsMainThread.CpuBudget());
}
bool result = itsProcessConstraint.AllocateCPUForThread(requestedBudget,
periodIndex,
false /*SPIN isAssociatedWithInterrupt*/
);
if (result)
{
itsMainThread.SetCPUBudget(itsMainThread.CpuBudget() -
ProcessConstraint.CPUTimeToNormalizedUtilization(
requestedBudget, periodIndex));
grantedCPU = requestedBudget;
}
else
{
grantedCPU = -1;
}
return(grantedCPU);
}
public static void DeallocateCPUBudgetForThread(Thread theThread)
{
int budget = theThread.CpuBudget();
int periodIndex = theThread.PeriodIndex();
itsProcessConstraint.DeallocateCPUForThread(budget, periodIndex);
itsMainThread.SetCPUBudget(itsMainThread.CpuBudget() +
ProcessConstraint.CPUTimeToNormalizedUtilization(
budget, periodIndex));
}