public bool ReadTai(AslTaiData data)
{
return WriteTaiInternal(data, false).Result;
}
private async Task<bool> WriteTaiInternal(AslTaiData data, bool write)
{
if (!Connected)
return false;
if (data is AslQuitTai)
{
//Just write the data because we will never hear back
_sw.WriteLine(data.GetWriteCommand());
return true;
}
Busy = true;
var token = _tokenSource.Token;
var delayTask = Task.Delay((int)data.Timeout, token);
string command = write ? data.GetWriteCommand() : data.GetReadCommand();
var readTask = Task.Factory.StartNew(() => TaiBounce(command, token));
var finishedTask = await Task.WhenAny(delayTask, readTask);
if (finishedTask == delayTask)
{
//We timed out. Abort the read
_tokenSource.Cancel();
Busy = false;
return false;
}
else
{
//Get a list of valid tokens
List<string> tokens = new List<string>();
tokens.AddRange(Misc.Tokens);
foreach (AslTaiData d in CustomCommands)
tokens.Add(d.GetReadCommand().Substring(0, 2));
//Find the relevant data
foreach (string tokenString in tokens)
{
List<int> dataLocs = FindRelevantData(readTask.Result, tokenString);
//Parse the data
foreach (int loc in dataLocs)
{
string l = readTask.Result[loc];
//Extract the ID
string id = l.Substring(4, 4);
foreach (Asl a in Devices)
{
//Check to see if the responding ASL matches the ASL we are looking at via the loop
if ((a.Id == id) || (a.Id == "0000"))
{
List<AslTaiData> parseObjects = new List<AslTaiData>();
parseObjects.AddRange(CustomCommands);
parseObjects.AddRange(a.DataObjects);
//Find the specific command this mapped to
for (int i = 0; i < parseObjects.Count; ++i)
{
//Get a pointer to the current command object we are looking at via the loop
AslTaiData t = parseObjects[i];
//Get the command ID from the string received from the TAI
string cmdId = l.Substring(10, 2);
//Does the received ID match the ID of the command we are looking at via the loop?
if (cmdId == t.GetCommandID())
{
//Create an instance of an IcParams-type command object so we can get its command string
AslIcParams ic = new AslIcParamsNoLoop();
//Does the command received have to do with a control loop?
if (cmdId == ic.GetCommandID())
{
//Special handling for this: must cast as appropriate type
ic.Parse(l);
//Cast t as the appropriate inherited object
switch (ic.Loop)
{
case LoopControl.Co2YLoop:
t = new AslIcParamsCo2Y();
break;
case LoopControl.ConstantMvLoop:
t = new AslIcParamsConstMv();
break;
case LoopControl.ConstantVtLoop:
t = new AslIcParamsConstVt();
break;
default:
t = new AslIcParamsNoLoop();
break;
}
}
//Update the object based on the data received
lock (t)
{
t.Parse(l);
}
break;
}
}
}
}
HandleExceptions();
}
}
}
HandleExceptions();
Busy = false;
return true;
}
public bool WriteTai(AslTaiData data)
{
return WriteTaiInternal(data, true).Result;
}
