private static ThreadContext OnCoreNotification(SystemIRQ irq, ThreadContext context)
{
while (_dpcs.Count != 0)
{
var item = _dpcs.First;
_dpcs.RemoveFirst();
context = item !.Value.Callback(item.Value.Argument, context);
}
return(context);
}
internal static void DispatchSystemIRQ(SystemIRQ irq, ThreadContext context)
{
Debug.Assert(irq < SystemIRQ.COUNT);
var handler = Volatile.Read(ref _systemIRQHandlers[(int)irq]);
if (handler != null)
{
context = handler(irq, context);
}
else
{
UnhandledIRQ(irq);
}
ExitIRQHandler(context);
}
private ThreadContext OnSystemTick(SystemIRQ irq, ThreadContext context)
{
TickCount++;
// Unblock delayed threads
while (true)
{
var first = _delayedThreads.First;
if (first != null && TickCount >= first.Value.AwakeTick)
{
_delayedThreads.Remove(first);
_readyThreads.AddLast(first);
first.Value.Thread.State = ThreadState.Ready;
}
else
{
break;
}
}
return(YieldThread());
}
private static void UnhandledIRQ(SystemIRQ irq)
{
Debug.Fail("Unhandled IRQ");
}
public static void RegisterSystemIRQ(SystemIRQ irq, SystemIRQHandler?handler)
{
Debug.Assert(irq < SystemIRQ.COUNT);
Volatile.Write(ref _systemIRQHandlers[(int)irq], handler);
}
