internal void SwitchTask()
{
if (null != _activeTask)
{
switch (_activeTask.State)
{
case FiberTaskState.Ready:
_readyTasks.Enqueue(_activeTask);
break;
case FiberTaskState.Stopped:
_stoppedTasks.Add(_activeTask);
break;
}
}
uint nextFiberId = _readyTasks.TryDequeue(out _activeTask)
? _activeTask.FiberId
: _schedulerFiberId;
FiberUnmanaged.SwitchToFiber(nextFiberId);
// we are back, check we were not killed meanwhile
if (null != _activeTask && FiberTaskState.Killed == _activeTask.State)
{
Thread.CurrentThread.Abort();
}
}
private void Scheduler(object data)
{
// schedule root task
FiberTask rootTask = (FiberTask)data;
_scheduler = this;
_schedulerFiberId = FiberUnmanaged.ConvertThreadToFiber(0);
rootTask.Start();
SwitchTask();
// exit
FiberUnmanaged.ConvertFiberToThread();
}
protected FiberTask()
{
State = FiberTaskState.Unknown;
FiberUnmanaged.FiberProc fiberProc = _ => EntryPoint();
FiberId = FiberUnmanaged.CreateFiber(0, fiberProc, 0);
}