public void Start()
{
offset = (long)0;
qpcStart = (long)0;
paused = false;
CCTPerformanceTimer.QueryPerformanceCounter(ref qpcStart);
}
static CCTPerformanceTimer()
{
long l = (long)0;
CCTPerformanceTimer.QueryPerformanceFrequency(ref l);
CCTPerformanceTimer.ticksFactor = 10000000.0 / (double)l;
}
public void Resume()
{
if (paused)
{
paused = false;
CCTPerformanceTimer.QueryPerformanceCounter(ref qpcStart);
}
}
public void Pause()
{
if (!paused)
{
paused = true;
long l = (long)0;
CCTPerformanceTimer.QueryPerformanceCounter(ref l);
offset += l - qpcStart;
}
}
public bool SendCCTalkCommand(byte address, byte command, byte[] data, int timeOut, out byte[] response, CCTMessageType msgType, byte[] encryptionCode)
{
if (data.Length > 252)
{
throw new Exception("to many bytes in ccTalk data");
}
bool flag1 = false;
response = emptyBuffer;
lock (this)
{
int i1 = 4 + data.Length + 1;
buffer[0] = address;
buffer[1] = (byte)data.Length;
buffer[2] = 1;
buffer[3] = command;
data.CopyTo(buffer, 4);
switch (msgType)
{
case CCTMessageType.NoneCRC:
break;
case CCTMessageType.EncryptedNoneCRC:
CCTCrypt.Encrypt(buffer, 2, i1 - 2, encryptionCode);
break;
case CCTMessageType.StandardCRC8:
crc8.Reset();
crc8.PushData(buffer, 0, i1 - 1);
buffer[4 + data.Length] = crc8.CRC;
break;
case CCTMessageType.EncryptedCRC8:
crc8.Reset();
crc8.PushData(buffer, 0, i1 - 1);
buffer[4 + data.Length] = crc8.CRC;
CCTCrypt.Encrypt(buffer, 2, i1 - 2, encryptionCode);
break;
case CCTMessageType.StandardCRC16:
crc16.Reset();
crc16.PushByte(buffer[0]);
crc16.PushByte(buffer[1]);
crc16.PushData(buffer, 3, i1 - 4);
buffer[2] = (byte)(crc16.CRC & 255);
buffer[4 + data.Length] = (byte)(crc16.CRC >> 8);
break;
case CCTMessageType.EncryptedCRC16:
crc16.Reset();
crc16.PushByte(buffer[0]);
crc16.PushByte(buffer[1]);
crc16.PushData(buffer, 3, i1 - 4);
buffer[2] = (byte)(crc16.CRC & 255);
buffer[4 + data.Length] = (byte)(crc16.CRC >> 8);
CCTCrypt.Encrypt(buffer, 2, i1 - 2, encryptionCode);
break;
}
Thread.Sleep(20);
if (SerPort == null)
{
return(false);
}
SerPort.DiscardInBuffer();
SerPort.Write(buffer, 0, i1);
if ((command == 253) || (command == 252))
{
Thread.Sleep(1500);
}
else
{
Thread.Sleep(100);
}
bool flag2 = false, flag3 = false;
int i2 = 0, i3 = 0;
CCTPerformanceTimer performanceTimer = new CCTPerformanceTimer();
performanceTimer.Start();
while (!flag2)
{
try
{
Thread.Sleep(20);
while (SerPort.BytesToRead > 0)
{
if (flag3)
{
TimeSpan timeSpan1 = performanceTimer.TimeSpan;
timeOut = (int)timeSpan1.TotalMilliseconds + 50;
}
buffer[i2++] = (byte)SerPort.ReadByte();
i3 = i2 >= 3 ? 5 + buffer[1] : -1;
if (i2 == i3)
{
if (buffer[0] == address)
{
i2 = 0;
flag3 = true;
}
if (buffer[0] == 1)
{
flag2 = true;
switch (msgType)
{
case CCTMessageType.NoneCRC:
break;
case CCTMessageType.EncryptedNoneCRC:
CCTCrypt.Decrypt(buffer, 2, i2 - 2, encryptionCode);
break;
case CCTMessageType.StandardCRC8:
crc8.Reset();
crc8.PushData(buffer, 0, i2 - 1);
flag1 = buffer[i2 - 1] == crc8.CRC;
break;
case CCTMessageType.EncryptedCRC8:
CCTCrypt.Decrypt(buffer, 2, i2 - 2, encryptionCode);
crc8.Reset();
crc8.PushData(buffer, 0, i2 - 1);
flag1 = buffer[i2 - 1] == crc8.CRC;
break;
case CCTMessageType.StandardCRC16:
crc16.Reset();
crc16.PushByte(buffer[0]);
crc16.PushByte(buffer[1]);
crc16.PushData(buffer, 3, i2 - 4);
flag1 = (buffer[2] + (buffer[i2 - 1] << 8)) == crc16.CRC;
break;
case CCTMessageType.EncryptedCRC16:
CCTCrypt.Decrypt(buffer, 2, i2 - 2, encryptionCode);
crc16.Reset();
crc16.PushByte(buffer[0]);
crc16.PushByte(buffer[1]);
crc16.PushData(buffer, 3, i2 - 4);
flag1 = (buffer[2] + (buffer[i2 - 1] << 8)) == crc16.CRC;
break;
}
if (flag1)
{
response = new byte[buffer[1]];
Array.Copy(buffer, 4, response, 0, response.Length);
}
}
}
}
TimeSpan timeSpan2 = performanceTimer.TimeSpan;
if (timeSpan2.TotalMilliseconds > (double)timeOut)
{
flag2 = true;
}
}
catch (Exception ex)
{
Log.Error("", ex);
}
}
}
response = new byte[buffer[1]];
Array.Copy(buffer, 4, response, 0, response.Length);
return(flag1);
}
