public void handleResponse(Resource resource)
{
switch (resource.type)
{
case ResType.CreateHandleResponse:
{
Program program = process.virtualMachine.program;
CreateHandleResponse createHandleResponse = (CreateHandleResponse)resource;
program.registers.B = (uint)(createHandleResponse.handle);
program.registers.SI = SiInt.None;
break;
}
case ResType.ReadHandleResponse:
{
Program program = process.virtualMachine.program;
ReadHandleResponse response = (ReadHandleResponse)resource;
if (response.readBytes.Length > response.bytesRequested)
{
program.memAccesser.writeFromAddr(program.registers.DS + program.registers.A, response.readBytes, response.bytesRequested);
program.registers.CX = response.bytesRequested;
program.registers.SI = SiInt.None;
}
else
{
uint len = checked ((uint)response.readBytes.Length);
program.memAccesser.writeFromAddr(program.registers.DS + program.registers.A, response.readBytes, len);
program.registers.CX = len;
}
program.registers.A = response.status;
program.registers.SI = SiInt.None;
break;
}
case ResType.WriteHandleResponse:
{
Program program = process.virtualMachine.program;
WriteHandleResponse writeHandleResponse = (WriteHandleResponse)resource;
program.registers.A = writeHandleResponse.status;
program.registers.CX = writeHandleResponse.amountWritten;
program.registers.SI = SiInt.None;
break;
}
case ResType.CloseHandleResponse:
case ResType.DeleteHandleResponse:
case ResType.SeekHandleResponse:
{
Program program = process.virtualMachine.program;
program.registers.SI = SiInt.None;
// do nothing - just wait and release
break;
}
default:
throw new NotImplementedException();
}
}
private void writeBattery(WriteHandleRequest request)
{
Handle handle = this.kernelStorage.handles[request.handle];
((Battery)handle).setStatus(request.bytesToWrite[0]);
Resource response = new WriteHandleResponse(this.id, 0, 4, request.createdByProcess);
this.kernelStorage.resources.add(response);
request.release();
}
private void writeHandle(WriteHandleRequest request)
{
Handle handle = this.kernelStorage.handles[request.handle];
Resource response;
if (handle is Battery)
{
writeBattery(request);
return;
}
setDevice(handle, 1);
uint amountWritten = 0;
try
{
for (uint i = 0; i < request.bytesToWrite.Length; i++)
{
amountWritten++;
handle.write(request.bytesToWrite[i]);
}
response = new WriteHandleResponse(this.id, 0, amountWritten, request.createdByProcess);
}
catch (Exception e)
{
if (!e.Message.Contains("Writing file out of bounds"))
{
throw e;
}
response = new WriteHandleResponse(this.id, 1, amountWritten, request.createdByProcess);
}
setDevice(handle, 0);
kernelStorage.resources.add(response);
request.release();
}