- added FindCommandDescriptor to SCinter.*

- modified support for dynamic objects
- improved logger system
- various fixes

logsetup.c

@@ -73,11 +73,17 @@ static int LogSetup(SConnection *pCon, SicsInterp *pSics, void *pData,
   } else {
     numeric = 0;
   }
-  logger = LoggerMake(name, period, !numeric);
-  LoggerSetNumeric(logger, numeric);
-  cb = MakeHipadabaCallback(LoggerUpdateCallback, logger, (void (*)(void *))LoggerKill, -1, NULL);
-  assert(cb);
-  AppendHipadabaCallback(node, HCBUPDATE, cb);
+  logger = FindHdbCallbackData(node, HCBUPDATE, LoggerUpdateCallback, NULL);
+  if (logger != 0) { /* logger exists already, changed only period */
+    LoggerSetPeriod(logger, period);
+  } else {
+    logger = LoggerMake(name, period, !numeric);
+    LoggerSetNumeric(logger, numeric);
+    cb = MakeHipadabaCallback(LoggerUpdateCallback, logger, (void (*)(void *))LoggerKill, -1, NULL);
+    assert(cb);
+    AppendHipadabaCallback(node, HCBUPDATE, cb);
+  }
+  
   return 1;
 }