internal void LookupOpDescriptor(LMMMLingo.Tokens cmd, ref LMMMLingo.OpDesc op)
{
try
{
op = (LMMMLingo.OpDesc)LMMMOpOpDescMap[cmd];
}
catch (Exception e)
{
commlog.TraceEvent(LogLevels.Error, 888, "Unable to look up cmd in descriptor map:" + e.Message);
}
}
internal void CommandPromptMatchPrefix(string input, ref LMMMLingo.OpDesc op)
{
string s = input.ToLower();
foreach (DictionaryEntry possible in CmdStringOpDescMap) // this supposed to be an IDictionaryElement or something like that. we get a k,v pair here
{
if (s.StartsWith((string)possible.Key) &&
((OpDesc)possible.Value).isAPromptCmd) // it is a prompt prefix
{
op = ((OpDesc)possible.Value);
break;
}
}
}
// extract the single integer arg if there, mark bad if expected and not there
bool ParsePrompt(string line, LMMMLingo.OpDesc cmdt, ref Int32 res)
{
res = 0;
bool good = !cmdt.needsArg;
string[] temp = line.Split('=');
if (cmdt.needsArg && temp.Count() > 1)
{
good = Int32.TryParse(temp[1], out res);
if (!good && cmdt.tok == LMMMLingo.Tokens.assay)
{
good = AssaySelector.AssayTypeConv(temp[1], out res);
}
}
return(good);
}
// UDP broadcast
public bool PostLMMMCommand(LMMMLingo.Tokens cmd, bool terminator = false)
{
bool res = true;
if (NC.App.AppContext.Emulate)
{ // look up OpDesc instance from map
// dispatch to thrift based on cmd token
LMMMLingo.OpDesc op = null;
cmdprocessor.LookupOpDescriptor(cmd, ref op);
DivertToEmulation(op, 0, -1);
}
else
{
try {
string cmds = cmdprocessor.ComposeCommandStrings(cmd, 0);
if (cmds.Length > 0)
{
LMConnectionInfo net = ((LMConnectionInfo)(NC.App.Opstate.Measurement.Detectors[0].Id.FullConnInfo));
// broadcast go message to all cfg.Net.Subnet addresses. This is the instrument group.
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPAddress broadcast = IPAddress.Parse(net.NetComm.Subnet);
if (terminator)
{
cmds += LMMMLingo.eol;
}
Byte[] sendBuffer = Encoding.ASCII.GetBytes(cmds);
IPEndPoint ep = new IPEndPoint(broadcast, net.NetComm.LMListeningPort);
s.SendTo(sendBuffer, ep);
commlog.TraceEvent(LogLevels.Verbose, 361, "UDP send: '" + LMLoggers.LognLM.FlattenChars(cmds) + "'");
}
}
catch (ObjectDisposedException ex)
{
commlog.TraceEvent(LogLevels.Error, 357, "LOST an instrument: " + ex.Message);
}
}
protected void CommandPrompt(Thread t = null)
{
// dev note: this Ctrl-C handler does not work when vshost is active in the dev env
Console.CancelKeyPress += new ConsoleCancelEventHandler(LiveDAQCtrlCHandler);
Console.TreatControlCAsInput = false;
string line = "";
bool keepGoing = true;
bool explicitPrompt = (t == null);
Console.WriteLine(NC.App.AbbrName + "> command prompt " + NC.App.Config.VersionString + " (press CTRL+Z to exit):");
Console.WriteLine();
Console.Write(NC.App.AbbrName + "> ");
NC.App.Opstate.SOH = NCC.OperatingState.Living;
do
{
if ((t != null) && !Console.KeyAvailable && !explicitPrompt)
{
keepGoing = !t.Join(100); // when the batch op thread ends, we're out of the prompt loop, unless we asked for the prompt. "prompt with wait sync point approach"
}
else
{
line = Console.ReadLine();
if (line != null && (line.Length > 0))
{
string tline = line.Trim();
LMMMLingo.OpDesc cmdt = new LMMMLingo.OpDesc(true);
LMMMComm.CommandPromptMatchPrefix(tline, ref cmdt);
if (LMMMLingo.Tokens.unknown == cmdt.tok)
Console.WriteLine(NC.App.AbbrName + "> skipping '" + tline + "', \r\n enter 'help' for valid commands");
else
{
Thread pnt = LMMMComm.ProcessUserCommand(cmdt, tline, this, ref keepGoing);
if (t == null)
t = pnt;
Console.Write(NC.App.AbbrName + ">");
}
}
else
Console.Write(NC.App.AbbrName + "> ");
}
} while (line != null && keepGoing);
// Issue: user quits operations via cmd prompt but system is still going waiting for HV or file or DAQ analysis to complete.
// todo: Solution 1 (todo): prevent exit if waiting HVCalib or Assay operations to complete, pend woud occur in ProcessUserCommand above or around it via a polling loop
// Solution 2 (below): to use the cancellation token here, provided that t is non-null & user typed quit to prompt, so need to stop LMMM and stop the pending thread represented by t, if possible.
if (NC.App.Opstate.SOH == NCC.OperatingState.Living && t != null && line.ToLower().StartsWith("quit"))
{
CancelCurrentAction();
// todo: test this, might need to wait on it or kill it or something
if (t.IsAlive)
t.Abort(); // messy and likely to fail if sub-threads are pending
}
}
internal void CommandPromptMatchPrefix(string input, ref LMMMLingo.OpDesc op)
{
cmdprocessor.CommandPromptMatchPrefix(input, ref op);
}
