Adding tabling support for mixed strategy evaluation (batched and local scheduling)

UPDATE: compilation flags -DTABLING_BATCHED_SCHEDULING and -DTABLING_LOCAL_SCHEDULING removed. To support tabling use -DTABLING in the Makefile or --enable-tabling in configure.
  NEW: yap_flag(tabling_mode,MODE) changes the tabling execution mode of all tabled predicates to MODE (batched, local or default).
  NEW: tabling_mode(PRED,MODE) changes the default tabling execution mode of predicate PRED to MODE (batched or local).


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1268 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

C/init.c

@@ -746,6 +746,11 @@ InitFlags(void)
 #endif
   /* current default */
   yap_flags[INDEXING_MODE_FLAG] = INDEX_MODE_MULTI;
+#ifdef TABLING
+  yap_flags[TABLING_MODE_FLAG] = TABLING_MODE_DEFAULT;
+#else
+  yap_flags[TABLING_MODE_FLAG] = TABLING_MODE_OFF;
+#endif /* TABLING */
 }
 
 static void 
@@ -1155,14 +1160,6 @@ Yap_InitWorkspace(int Heap,
   /* also init memory page size, required by later functions */
   Yap_InitSysbits ();
 
-#ifdef TABLING
-#ifdef TABLING_BATCHED_SCHEDULING
-  INFORMATION_MESSAGE("YapTab: batched scheduling");
-#else /* TABLING_LOCAL_SCHEDULING */
-  INFORMATION_MESSAGE("YapTab: local scheduling");
-#endif /* BATCHED - LOCAL */
-#endif /* TABLING */
-
 #ifdef YAPOR
   worker_id = 0;
   if (aux_number_workers > MAX_WORKERS)