private void readHandleFile(FileHandle hndl, ReadHandleRequest request)
{
this.kernelStorage.channelDevice.storage = 1;
byte[] readBytes = new byte[request.amount];
Resource response;
uint amountRead = 0;
try
{
for (uint i = 0; i < request.amount; i++)
{
amountRead++;
readBytes[i] = hndl.read();
}
response = new ReadHandleResponse(this.id, readBytes, 0, checked ((uint)request.amount), request.createdByProcess);
//program.memAccesser.writeFromAddr(program.registers.DS + program.registers.A, readBytes);
}
catch (Exception e)
{
if (!e.Message.Contains("Reading file out of bounds"))
{
throw e;
}
response = new ReadHandleResponse(this.id, readBytes, 1, checked ((uint)request.amount), request.createdByProcess);
//program.memAccesser.writeFromAddr(program.registers.DS + program.registers.A, readBytes);
}
this.kernelStorage.channelDevice.storage = 0;
kernelStorage.resources.add(response);
request.release();
}
private void readHandleBattery(Battery battery, ReadHandleRequest request)
{
Resource response = new ReadHandleResponse(this.id, battery.getStatus(), 0, checked ((uint)request.amount), request.createdByProcess);
kernelStorage.resources.add(response);
request.release();
}
private void readHandleConsole(ConsoleDevice hndl, ReadHandleRequest request)
{
this.kernelStorage.channelDevice.console = 1;
byte[] readBytes = hndl.readLine();
Resource response;
if (readBytes.Length > request.amount)
{
//program.memAccesser.writeFromAddr(program.registers.DS + program.registers.A, readBytes, program.registers.CX);
//program.registers.A = 1;
response = new ReadHandleResponse(this.id, readBytes, 1, checked ((uint)request.amount), request.createdByProcess);
}
else
{
uint len = checked ((uint)readBytes.Length);
response = new ReadHandleResponse(this.id, readBytes, 0, checked ((uint)request.amount), request.createdByProcess);
//program.memAccesser.writeFromAddr(program.registers.DS + program.registers.A, readBytes, len);
//program.registers.CX = len;
//program.registers.A = 0;
}
this.kernelStorage.channelDevice.console = 0;
//program.registers.A = 0;
//program.registers.SI = SiInt.None;
kernelStorage.resources.add(response);
request.release();
}
private void readHandle(ReadHandleRequest request)
{
int bytesToReadAmount = request.amount;
Handle hndl = this.kernelStorage.handles[request.handle];
if (hndl is FileHandle)
{
readHandleFile(hndl as FileHandle, request);
}
else if (hndl is ConsoleDevice)
{
readHandleConsole(hndl as ConsoleDevice, request);
}
else if (hndl is Battery)
{
readHandleBattery(hndl as Battery, request);
}
}
