Example #1
0
        private static void PreemptingExampleNonPreemptingSchedulerMultipleTasks()
        {
            int numOfThreads = 2;
            SimpleTaskScheduler taskScheduler = SimpleTaskScheduler.CreateNonPreemptive(numOfThreads);

            SimpleTaskScheduler.ExecutionToken token1 = taskScheduler.GetExecutionToken();
            SimpleTaskScheduler.ExecutionToken token2 = taskScheduler.GetExecutionToken();
            SimpleTaskScheduler.ExecutionToken token3 = taskScheduler.GetExecutionToken();
            SimpleTaskScheduler.ExecutionToken token4 = taskScheduler.GetExecutionToken();
            Task t1 = CreateTask(id: 1, token: token1);
            Task t2 = CreateTask(id: 2, token: token2);
            Task t3 = CreateTask(id: 3, token: token3);
            Task t4 = CreateTask(id: 4, token: token4);

            taskScheduler.Register(t1, 5, 2500, token1);
            taskScheduler.Register(t2, 4, 2500, token2);
            taskScheduler.Register(t3, 3, 2500, token3);
            taskScheduler.Register(t4, 2, 2500, token4);

            t1.Start(taskScheduler);
            t2.Start(taskScheduler);
            Task.Delay(1000).Wait();
            t3.Start(taskScheduler);
            t4.Start(taskScheduler);

            taskScheduler.FinishScheduling();
        }
Example #2
0
        private static void SingleThreadPreemptingExampleNonPreemptingScheduler()
        {
            int numOfThreads = 1;
            SimpleTaskScheduler taskScheduler = SimpleTaskScheduler.CreateNonPreemptive(numOfThreads);

            SimpleTaskScheduler.ExecutionToken token1 = taskScheduler.GetExecutionToken();
            SimpleTaskScheduler.ExecutionToken token2 = taskScheduler.GetExecutionToken();
            Task t1 = CreateTask(id: 1, token: token1);
            Task t2 = CreateTask(id: 2, token: token2);

            taskScheduler.Register(t1, 5, 2500, token1);
            taskScheduler.Register(t2, 4, 2500, token2);

            t1.Start(taskScheduler);
            Task.Delay(1000).Wait();
            t2.Start(taskScheduler);
            taskScheduler.FinishScheduling();
        }
Example #3
0
        private static void PriorityInversionExample2()
        {
            int numOfThreads = 1;
            SimpleTaskScheduler taskScheduler = SimpleTaskScheduler.CreatePreemptive(numOfThreads);

            SimpleTaskScheduler.ExecutionToken token1 = taskScheduler.GetExecutionToken();
            SimpleTaskScheduler.ExecutionToken token2 = taskScheduler.GetExecutionToken();
            Object resource = new Object();
            Task   t1       = CreateTaskWithResourceLockAndUnlockResource(id: 1, token: token1, resource);
            Task   t2       = CreateTaskWithResourceLockAndUnlockResource(id: 2, token: token2, resource);

            taskScheduler.Register(t1, 5, 2500, token1);
            taskScheduler.Register(t2, 4, 2500, token2);

            t1.Start(taskScheduler);
            Task.Delay(1000).Wait();
            t2.Start(taskScheduler);
            taskScheduler.FinishScheduling();
        }