public static ulong readVolumeFile(out UInt32 dongleID)
{
//read only
UInt32 _dongleID = 0;
var readData = default(byte[]);
ulong tmpVolume = 0;
try
{
FileStream logFileStream = new FileStream(tonerVolumeFile,
FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
using (StreamReader sr = new StreamReader(logFileStream))
{
using (var memstream = new MemoryStream())
{
sr.BaseStream.CopyTo(memstream);
readData = memstream.ToArray();
}
// Clean up
sr.Close();
logFileStream.Close();
}
if (readData.Length != 0)
{
tmpVolume = BlowFishImpl.decodeVolumeData(readData, out _dongleID);
}
}
catch (Exception exp) { Trace.WriteLine("Read ink file got exception " + exp.Message); }
dongleID = _dongleID;
return(tmpVolume);
}
public static bool addVolumeToFile(UInt32 intToneVolume, UInt32 dongleIDFromFile, bool bReadFile)
{
bool bWritedFile = false;
try
{//1. check file existed
//2. read data inside
//3. if read data is empty, write volume read from tag
//4. if read data not empty, add the volume read from tag, if over max, set to max
ulong tmpVolume = readVolumeFile(out dongleID);
if (bReadFile && (dongleIDFromFile != dongleID))
{
Trace.WriteLine("*** Dongle ID did not matched");
return(false);
}
Trace.Write("read Dongle ID " + dongleID);
byte[] defaultData = BlowFishImpl.encodeVolumeData((ulong)intToneVolume * 1000000000, dongleID);
if (!File.Exists(tonerVolumeFile))
{//create file first
bWritedFile = false;
using (StreamWriter sw = File.CreateText(tonerVolumeFile))
{
sw.WriteLine("");
sw.Close();
}
for (int i = 0; i < 5 && !bWritedFile; i++)
{
bWritedFile = writeByteToFile(defaultData);
if (bWritedFile)
{
Trace.WriteLine("Ink file not found, write " +
Encoding.Default.GetString(defaultData));
return(true);
}
}
return(false);
}
if (tmpVolume == 0)
{//empty file
bWritedFile = false;
for (int i = 0; i < 5 && !bWritedFile; i++)
{
bWritedFile = writeByteToFile(defaultData);
if (bWritedFile)
{
Trace.WriteLine("Ink file empty, add " + intToneVolume.ToString() + "L");
return(true);
}
}
}
else
{
DateTime aTime = DateTime.Now;
Trace.Write(aTime.ToString("MM/dd/yyyy HH:mm:ss: "));
currentTonerVolume = tmpVolume + (ulong)intToneVolume * 1000000000;
Trace.Write("Ink file read " + currentTonerVolume.ToString() + ", ");
if (currentTonerVolume > tonerMAXVolume)
{
currentTonerVolume = tonerMAXVolume;
}
bWritedFile = false;
for (int i = 0; i < 5 && !bWritedFile; i++)
{
bWritedFile = writeByteToFile(BlowFishImpl.encodeVolumeData(currentTonerVolume, dongleID));
if (bWritedFile)
{
Trace.WriteLine("Ink file read, add " + currentTonerVolume.ToString() + "L");
return(true);
}
}
}
}
catch (Exception exp) { Trace.WriteLine("Get Exception " + exp.Message); }
return(false);
}