- Added a means to overload or define drivable interfaces in tcl

tcldrivable.h

@@ -0,0 +1,53 @@
+
+/*-----------------------------------------------------------------------
+  The code in this file allows to override or define Drivable
+  interfaces through tcl scripts. More more details, see
+  tcldrivable.tex
+
+  copyright: see file COPYRIGHT
+  
+  Mark Koennecke, September 2003
+  ----------------------------------------------------------------------*/
+#ifndef SICSTCLDRIVABLE 
+#define SICSTCLDRIVABLE 
+
+/*
+  Function codes for  functionIndex
+*/
+#define TCLHALT    1
+#define TCLCHECK   2
+#define TCLSET     3
+#define TCLSTATUS  4
+#define TCLGET     5
+
+  /*
+    This installs a Tcl replacement for a drivable function
+  */
+  int TclReplaceDrivable(SConnection *pCon, SicsInterp *pSics, 
+                         void *pData, int argc, char *argv[]);
+  /*
+    This allows to invoke a replaced function for debugging
+    purposes
+  */
+  int TclDrivableInvoke(SConnection *pCon, SicsInterp *pSics, 
+                         void *pData, int argc, char *argv[]);
+  
+  /*
+    This is for use from C
+  */
+  int replaceDrivableByTcl(void *sicsObject, int functionIndex,
+                           char *scriptName, char *tclName); 
+
+  /*
+    map name to a functionIndex for use in replaceDrivableByTcl.
+    Returns 0 on failure, a usefule index > 0 in the case of success
+  */
+  int mapDrivableFunctionNames(char *name);
+
+  /*
+    This is called from StopServer/nserver.c in order to remove
+    all memory related to this class
+  */
+  void killTclDrivable(void);
+#endif
+