// We've closed mspdebug's stdin and are now waiting for process
// exit.
void ManagerExiting(ITC.Primitive source)
{
Message msg;
if (rawOutput.IsClosed)
{
Output.Close();
return;
}
if (rawOutput.TryReceive(out msg))
{
Output.Send(msg);
}
ITC.Pool.Continue(rawOutput, this.ManagerExiting);
}
// Manager: ready state. mspdebug is sitting idle and waiting
// for a command.
void ManagerReady(ITC.Primitive source)
{
string cmd;
if (Commands.IsClosed)
{
try
{
rawInput.Close();
}
catch (Exception) { }
ManagerExiting(null);
return;
}
if (Commands.TryReceive(out cmd))
{
try
{
rawInput.Write(":" + cmd + "\n");
}
catch (Exception) { }
ManagerSubmitting(null);
return;
}
if (Cancel.Signalled)
{
Cancel.Clear();
CancelAccepted.Raise();
Ready.Raise();
}
ITC.Pool.Continue(new ITC.Primitive[] { Cancel, Commands },
this.ManagerReady);
}
// Manager: submitting state. We've just been given a command
// and have sent it to mspdebug. Wait for mspdebug's
// acknowledgement of receipt before doing anything further,
// otherwise any cancellation requests we might want to send
// could get lost without effect.
void ManagerSubmitting(ITC.Primitive source)
{
Message msg;
if (rawOutput.IsClosed)
{
Output.Close();
return;
}
if (rawOutput.TryReceive(out msg))
{
Output.Send(msg);
if ((msg.Type == MessageType.Shell) &&
(msg.Text.Equals("busy")))
{
ManagerBusy(null);
return;
}
}
ITC.Pool.Continue(rawOutput, this.ManagerSubmitting);
}
// Manager: busy state. A command, or startup is in progress. We
// move to the ready state once the command is finished.
void ManagerBusy(ITC.Primitive source)
{
Message msg;
if (rawOutput.IsClosed)
{
Output.Close();
return;
}
if (Cancel.Signalled)
{
try {
rawInput.Write("\\break\n");
}
catch (Exception) { }
Cancel.Clear();
CancelAccepted.Raise();
}
if (rawOutput.TryReceive(out msg))
{
Output.Send(msg);
if ((msg.Type == MessageType.Shell) &&
(msg.Text.Equals("ready")))
{
Ready.Raise();
ManagerReady(null);
return;
}
}
ITC.Pool.Continue(new ITC.Primitive[] { Cancel, rawOutput },
this.ManagerBusy);
}
// Clean up when the process exits.
void CleanProcess(ITC.Primitive prim)
{
rawOutput.Close();
proc.WaitForExit();
}