- Added a SICS to Hipadaba adapter

- Added a separate polling module to SICS

hipadaba.h

@@ -20,6 +20,8 @@
  * copyright: GPL
  *
  * Mark Koennecke, June 2006
+ * 
+ * Added treeChange callback, Mark Koennecke, November 2006
  */
 #ifndef HIPADABA
 #define HIPADABA
@@ -38,6 +40,7 @@
 #define HCBSET    0
 #define HCBUPDATE 1
 #define HCBREAD   2
+#define HCBTREE   3
 /*--------- error codes */
 #define HDBTYPEMISMATCH    -7701
 #define HDBLENGTHMISMATCH  -7702
@@ -63,12 +66,14 @@ typedef struct __hipadaba {
        	struct __hdbcallback *writeCallbacks;
        	struct __hdbcallback *updateCallbacks;
        	struct __hdbcallback *readCallbacks;
+        struct __hdbcallback *treeChangeCallbacks;
         char *name;
         hdbValue value;
+        int protected;
         }Hdb, *pHdb;
 /*-------------------------------------------------------------------------------*/
 typedef int (*hdbCallbackFunction)(void *userData, void *callData, 
-                      pHdb currentNode, hdbValue v                                                                           );
+                      pHdb currentNode, hdbValue v);
 typedef void (*killUserData)(void *data);
 /*-------------------------------------------------------------------------------*/
 typedef struct __hdbcallback {
@@ -179,13 +184,15 @@ pHdb MakeHipadabaNode(char *name, int datatype, int length);
  * add a child to a node at the end of the child list.
  * @param parent The node to which to add the child
  * @param child The node to add
+ * @param callData User data for the tree chnage callback. Can be NULL.
  */
-void AddHipadabaChild(pHdb  parent, pHdb child);
+void AddHipadabaChild(pHdb  parent, pHdb child, void *callData);
 /**
  * delete a hipadaba node and all its children
  * @parma node The node to delete
+ * @param callData User data for the tree change callback
  */
-void DeleteHipadabaNode(pHdb node);
+void DeleteHipadabaNode(pHdb node, void *callData);
 /*
  * checks if a Hdb node is valid
  * @param node The node to check
@@ -209,8 +216,9 @@ char *GetHipadabaPath(pHdb node);
 /**
  * removes a node from the parents child list.
  * @node the node to remove
+ * @param callData User data for the tree change callback
  */
-void RemoveHdbNodeFromParent(pHdb node);
+void RemoveHdbNodeFromParent(pHdb node, void *callData);
 /**
  * delete a  callback chain
  * @param root The callback chain to delete
@@ -300,7 +308,7 @@ int SetHdbPar(pHdb node, int dataType, void *data, int length,
 	void *callData);
 /**
  * Updates a hipadaba parameter. This does not cause an active parameter to 
- * start driving but invokes all nitifications which may be regsitered on 
+ * start driving but invokes all notifications which may be registered on 
  * this parameter.  
  * @param node The node for which to set the parameter
  * param dataType The datatype the value ought to have