private void Cleanup()
{
this._datatypeTable.Clear();
if (this._symbolTable.Count > 0)
{
uint[] numArray = new uint[this._symbolTable.Count];
int index = 0;
SymbolInfoTable table = this;
lock (table)
{
foreach (KeyValuePair <string, TcAdsSymbol> pair in this._symbolTable)
{
if (index < numArray.Length)
{
if (pair.Value.IndexGroup == 0xf005L)
{
index++;
numArray[index] = (uint)pair.Value.IndexOffset;
continue;
}
index++;
numArray[index] = 0;
}
}
this._symbolTable.Clear();
}
for (int i = 0; i < index; i++)
{
this._adsClient.RawInterface.Write(0xf006, 0, numArray[i], false);
}
}
}
public AdsErrorCode TryGetSymbol(string symbolPath, bool bLookup, out ITcAdsSymbol symbol)
{
if (string.IsNullOrEmpty(symbolPath))
{
throw new ArgumentOutOfRangeException("name");
}
symbol = null;
SymbolInfoTable table = this;
lock (table)
{
if (bLookup)
{
TcAdsSymbol symbol2 = null;
if (this._symbolTable.TryGetValue(symbolPath, out symbol2))
{
symbol = symbol2;
return(AdsErrorCode.NoError);
}
}
}
AdsErrorCode deviceSymbolNotFound = AdsErrorCode.DeviceSymbolNotFound;
AdsStream stream = new AdsStream(symbolPath.Length + 1);
using (AdsBinaryWriter writer = new AdsBinaryWriter(stream))
{
writer.WritePlcAnsiString(symbolPath, symbolPath.Length + 1);
AdsStream rdDataStream = new AdsStream(0xffff);
int readBytes = 0;
deviceSymbolNotFound = this._adsClient.TryReadWrite(0xf009, 0, rdDataStream, 0, (int)rdDataStream.Length, stream, 0, (int)stream.Length, out readBytes);
if (deviceSymbolNotFound == AdsErrorCode.NoError)
{
using (AdsBinaryReader reader = new AdsBinaryReader(rdDataStream))
{
AdsSymbolEntry symbolEntry = new AdsSymbolEntry(-1L, this._encoding, reader);
bool flag2 = true;
flag2 = StringComparer.OrdinalIgnoreCase.Compare(symbolPath, symbolEntry.name) == 0;
symbol = new TcAdsSymbol(symbolEntry, (TcAdsDataType)this._datatypeTable.ResolveDataType(symbolEntry.type));
SymbolInfoTable table2 = this;
lock (table2)
{
this._symbolTable[symbolPath] = (TcAdsSymbol)symbol;
if (!flag2 && !this._symbolTable.ContainsKey(symbol.Name))
{
this._symbolTable[symbol.Name] = (TcAdsSymbol)symbol;
string message = $"InstancePath Ambiguity '{symbolPath}' and '{symbol.Name}'!";
TwinCAT.Ads.Module.Trace.TraceWarning(message);
}
}
}
}
}
return(deviceSymbolNotFound);
}