internal override void Execute()
{
int currentlyExecutingTasksCount = scheduler.CurrentlyExecutingTasksCount();
Task minPriorityNonExecutingTask = scheduler.FindMinimumPriorityNonExecutingTask();
if (minPriorityNonExecutingTask == null)
{
return;
}
if (currentlyExecutingTasksCount < scheduler.MaxParallelTasks)
{
//start min priority non executing task, we have a free thread
scheduler.ContinueStartTask(task: minPriorityNonExecutingTask, threadId: scheduler.FindFirstFreeThread());
}
else if (scheduler.IsPreemptive)
{
//search for task which could be stopped
Task maxPriorityExecutingTask = scheduler.FindMaximumPriorityExecutingTask();
if (scheduler.ComparePriorities(minPriorityNonExecutingTask, maxPriorityExecutingTask) < 0)
{
int threadId = scheduler.GetThreadOfTask(maxPriorityExecutingTask);
scheduler.PauseTask(maxPriorityExecutingTask);
scheduler.ContinueStartTask(minPriorityNonExecutingTask, threadId);
}
}
}