public int Read(byte[] buffer, int offset, int count)
{
if (!isOpen)
{
throw new InvalidOperationException("Serial Port Read - port not open");
}
if (buffer == null)
{
throw new ArgumentNullException("buffer", Resources.GetResourceString("ArgumentNull_Buffer"));
}
if (offset < 0)
{
throw new ArgumentOutOfRangeException("offset", Resources.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count", Resources.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
}
if (buffer.Length - offset < count)
{
throw new ArgumentException(Resources.GetResourceString("Argument_InvalidOffLen"));
}
int beginReadPos = readPos;
byte [] tempReturnBuffer = new byte[count];
if (readLen - readPos >= 1)
{
int min = (readLen - readPos < count) ? readLen - readPos : count;
Buffer.BlockCopy(inBuffer, readPos, buffer, 0, min);
readPos += min;
if (min == count)
{
if (readPos == readLen)
{
readPos = readLen = 0; // just a check to see if we can reset buffer
}
return(count);
}
if (InBufferBytes == 0)
{
return(min);
}
}
int bytesLeftToRead = count - (readPos - beginReadPos);
if (bytesLeftToRead + readLen >= inBuffer.Length)
{
ResizeBuffer();
}
int returnCount = internalSerialStream.Read(inBuffer, readLen, bytesLeftToRead);
Buffer.BlockCopy(inBuffer, beginReadPos, buffer, offset, returnCount + (readPos - beginReadPos));
readLen = readPos = 0;
return(returnCount + readPos - beginReadPos); // return the number of bytes we threw into the buffer plus what we had.
}
private static void HidSharpMethod()
{
Console.WriteLine("HIDSharp looking for a USB Serial devices...");
List <SerialDevice> devices = DeviceList.Local.GetSerialDevices().ToList();
if (!devices.Any())
{
Console.WriteLine("No Devices Found");
return;
}
foreach (SerialDevice device in devices)
{
Console.WriteLine($"Found {device}");
if (device.DevicePath.Contains("GBA ST2"))
{
Console.WriteLine($"Found Match! { device.GetFriendlyName()}");
if (billAcceptor == null)
{
billAcceptor = device;
break;
}
}
}
if (billAcceptor == null)
{
Console.WriteLine("Bill Acceptor not found!");
return;
}
StringBuilder builder;
SerialStream stream = billAcceptor.Open();
using (stream)
{
while (!CancelationToken)
{
byte[] buffer = new byte[8];
int count = 0;
try
{
count = stream.Read(buffer, 0, buffer.Length);
}
catch (TimeoutException e)
{
Console.WriteLine("Timeout - new session started");
continue;
}
if (count > 0)
{
string converted = Convert.ToBase64String(buffer);
Console.WriteLine($"Evaluating: {converted}");
switch (converted)
{
case "B/lPAj0BAZA=":
case "B/lPAj0EA5U=":
case "B/lPAj0EBJY=":
case "B/lPAj0BAI8=":
Console.WriteLine("10 kn entered");
break;
default:
ReactToUnknownBill();
break;
}
count = 0;
}
}
}
Console.WriteLine("Closing session");
}
