public static Crc Calc(byte[] buffer, int offset, int length, ICrcCalculator calculator)
{
if (calculator != null && buffer.Length > offset && buffer.Length - offset >= length)
{
return(calculator.Calculate(buffer, offset, length));
}
return(new Crc(null));
}
public static bool CheckReverse(byte[] buffer, int offset, int length, ICrcCalculator calculator)
{
bool success = false;
if (calculator != null &&
buffer.Length > offset &&
buffer.Length - offset >= length &&
length > calculator.CrcDataLength)
{
var crc = Calc(buffer, offset, length - calculator.CrcDataLength, calculator);
success = crc.CrcData.Length == calculator.CrcDataLength;
for (int i = 0; i < calculator.CrcDataLength; i++)
{
if (!success)
{
break;
}
success &= buffer[offset + length - calculator.CrcDataLength + i] == crc.CrcData.Reverse().ToArray()[i];
}
}
return(success);
}
/// <summary>
/// Initializes a new instance of <see cref="PngImageEncoder"/>.
/// </summary>
/// <param name="crcCalculator"></param>
public PngImageEncoder(ICrcCalculator crcCalculator)
{
_crcCalculator = crcCalculator;
}
public ModbusRtuOverTcpTransport(IPipeResource pipeResource, ITransactionIdProvider transactionIdProvider, ICrcCalculator crcCalculator, ILogger <IModbusMaster> logger)
: base(pipeResource, transactionIdProvider, logger)
{
this.crcCalculator = crcCalculator;
}
public static bool CheckReverse(byte[] buffer, ICrcCalculator calculator)
{
return(CheckReverse(buffer, 0, buffer.Length, calculator));
}
public static Crc Calc(byte[] buffer, ICrcCalculator calculator)
{
return(Calc(buffer, 0, buffer.Length, calculator));
}
