internal ConsoleThread(Interp i)
{
Name = "ConsoleThread";
interp = i;
sbuf = new System.Text.StringBuilder(100);
out_Renamed = TclIO.getStdChannel(StdChannel.STDOUT);
err = TclIO.getStdChannel(StdChannel.STDERR);
}
private static void makeSafe(Interp interp)
{
Channel chan; // Channel to remove from safe interpreter.
interp.hideUnsafeCommands();
interp.isSafe = true;
// Unsetting variables : (which should not have been set
// in the first place, but...)
// No env array in a safe slave.
try
{
interp.unsetVar("env", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
// Remove unsafe parts of tcl_platform
try
{
interp.unsetVar("tcl_platform", "os", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
try
{
interp.unsetVar("tcl_platform", "osVersion", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
try
{
interp.unsetVar("tcl_platform", "machine", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
try
{
interp.unsetVar("tcl_platform", "user", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
// Unset path informations variables
// (the only one remaining is [info nameofexecutable])
try
{
interp.unsetVar("tclDefaultLibrary", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
try
{
interp.unsetVar("tcl_library", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
try
{
interp.unsetVar("tcl_pkgPath", TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
}
// Remove the standard channels from the interpreter; safe interpreters
// do not ordinarily have access to stdin, stdout and stderr.
//
// NOTE: These channels are not added to the interpreter by the
// Tcl_CreateInterp call, but may be added later, by another I/O
// operation. We want to ensure that the interpreter does not have
// these channels even if it is being made safe after being used for
// some time..
chan = TclIO.getStdChannel(StdChannel.STDIN);
if (chan != null)
{
TclIO.unregisterChannel(interp, chan);
}
chan = TclIO.getStdChannel(StdChannel.STDOUT);
if (chan != null)
{
TclIO.unregisterChannel(interp, chan);
}
chan = TclIO.getStdChannel(StdChannel.STDERR);
if (chan != null)
{
TclIO.unregisterChannel(interp, chan);
}
}
public override void processIdleEvent()
{
// During the execution of this method, elements may be removed from
// the errors list (because a TCL.CompletionCode.BREAK was returned by the bgerror
// command, or because the interp was deleted). We remove this
// BgError instance from the list first so that this instance won't
// be deleted twice.
SupportClass.VectorRemoveElement(Enclosing_Instance.errors, this);
// Restore important state variables to what they were at
// the time the error occurred.
try
{
Enclosing_Instance.interp.setVar("errorInfo", null, errorInfo, TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
// Ignore any TclException's, possibly caused by variable traces on
// the errorInfo variable. This is compatible with the behavior of
// the Tcl C API.
}
try
{
Enclosing_Instance.interp.setVar("errorCode", null, errorCode, TCL.VarFlag.GLOBAL_ONLY);
}
catch (TclException e)
{
// Ignore any TclException's, possibly caused by variable traces on
// the errorCode variable. This is compatible with the behavior of
// the Tcl C API.
}
// Make sure, that the interpreter will surive the invocation
// of the bgerror command.
Enclosing_Instance.interp.preserve();
try
{
// Invoke the bgerror command.
TclObject[] argv = new TclObject[2];
argv[0] = Enclosing_Instance.bgerrorCmdObj;
argv[1] = errorMsg;
Parser.evalObjv(Enclosing_Instance.interp, argv, 0, TCL.EVAL_GLOBAL);
}
catch (TclException e)
{
switch (e.getCompletionCode())
{
case TCL.CompletionCode.ERROR:
try
{
Channel chan = TclIO.getStdChannel(StdChannel.STDERR);
if (Enclosing_Instance.interp.getResult().ToString().Equals("\"bgerror\" is an invalid command name or ambiguous abbreviation"))
{
chan.write(Enclosing_Instance.interp, errorInfo);
chan.write(Enclosing_Instance.interp, "\n");
}
else
{
chan.write(Enclosing_Instance.interp, "bgerror failed to handle background error.\n");
chan.write(Enclosing_Instance.interp, " Original error: ");
chan.write(Enclosing_Instance.interp, errorMsg);
chan.write(Enclosing_Instance.interp, "\n");
chan.write(Enclosing_Instance.interp, " Error in bgerror: ");
chan.write(Enclosing_Instance.interp, Enclosing_Instance.interp.getResult());
chan.write(Enclosing_Instance.interp, "\n");
}
chan.flush(Enclosing_Instance.interp);
}
catch (TclException e1)
{
// Ignore.
}
catch (System.IO.IOException e2)
{
// Ignore, too.
}
break;
case TCL.CompletionCode.BREAK:
for (int i = Enclosing_Instance.errors.Count - 1; i >= 0; i--)
{
BgError bgErr = (BgError)Enclosing_Instance.errors[i];
Enclosing_Instance.errors.RemoveAt(i);
bgErr.cancel();
bgErr.errorMsg.release();
bgErr.errorMsg = null;
bgErr.errorInfo.release();
bgErr.errorInfo = null;
bgErr.errorCode.release();
bgErr.errorCode = null;
}
break;
}
}
Enclosing_Instance.interp.release();
errorMsg.release();
errorMsg = null;
errorInfo.release();
errorInfo = null;
errorCode.release();
errorCode = null;
}