// Methods is always called within Interrupt with Interrupt disabled
// TODO: Code duplication! Both SwitchToThreadMethod are very similar.
public unsafe void SwitchToThreadMethod(ref SysCallContext context, ref SystemMessage args)
{
var th = CreateThread(DefaultDispatchEntryPoint, SystemMessage.Size);
var argsPtr = (SystemMessage *)Unsafe.AsPointer(ref args);
th.DebugSystemMessage = *argsPtr;
var argAddr = (SystemMessage *)th.GetArgumentAddr(0);
argAddr[0] = *argsPtr;
SwitchToThread(context, th);
}
internal static void Service(ref IDTStack stack)
{
var handler = IDTManager.Handlers[stack.Interrupt];
if (handler.Service == null)
{
KernelMessage.WriteLine("handler.Service == null");
return;
}
var ctx = new SysCallContext
{
CallingType = SysCallCallingType.Async, // Important! Otherwise stack will corrupted
};
var msg = new SystemMessage(SysCallTarget.Interrupt)
{
Arg1 = stack.Interrupt,
};
Scheduler.SaveThreadState(Scheduler.GetCurrentThread().ThreadID, ref stack);
handler.Service.SwitchToThreadMethod(ref ctx, ref msg);
}
