Valgrind caught an error (uninitialized dirty bit)

git-svn-id: file:///svn/tokudb@80 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt.c

@@ -1006,6 +1006,7 @@ int open_brt (const char *fname, const char *dbname, int is_create, BRT *newbrt,
 		if (0) { died2: toku_free(t->h); }
 		goto died1;
 	    }
+	    t->h->dirty=1;
 	    t->h->nodesize=nodesize;
 	    t->h->freelist=-1;
 	    t->h->unused_memory=2*nodesize;
@@ -1077,7 +1078,7 @@ int close_brt (BRT brt) {
 	if (r!=0) return r;
     }
     assert(0==cachefile_count_pinned(brt->cf, 1));
-    printf("%s:%d closing cachetable\n", __FILE__, __LINE__);
+    //printf("%s:%d closing cachetable\n", __FILE__, __LINE__);
     if ((r = cachefile_close(&brt->cf))!=0) return r;
     if (brt->database_name) toku_free(brt->database_name);
     if (brt->skey) { toku_free(brt->skey); }
@@ -1171,7 +1172,6 @@ int brt_lookup_node (BRT brt, diskoff off, DBT *k, DBT *v, DB *db) {
     void *node_v;
     int r = cachetable_get_and_pin(brt->cf, off, &node_v,
 				   brtnode_flush_callback, brtnode_fetch_callback, (void*)(long)brt->h->nodesize);
-    DBT answer;
     BRTNODE node;
     int childnum;
     if (r!=0) {
@@ -1183,12 +1183,9 @@ int brt_lookup_node (BRT brt, diskoff off, DBT *k, DBT *v, DB *db) {
     }
     node=node_v;
     if (node->height==0) {
-	r = pma_lookup(node->u.l.buffer, k, &answer, db);
+	r = pma_lookup(node->u.l.buffer, k, v, db);
 	//printf("%s:%d looked up something, got answerlen=%d\n", __FILE__, __LINE__, answerlen);
 	if (r!=0) goto died0;
-	if (r==0) {
-	    *v = answer;
-	}
 	r = cachetable_unpin(brt->cf, off, 0);
 	return r;
     }

newbrt/cachetable.c

@@ -17,6 +17,7 @@
 
 typedef struct ctpair *PAIR;
 struct ctpair {
+    enum typ_tag tag;
     long long pinned;
     char     dirty;
     CACHEKEY key;
@@ -233,6 +234,8 @@ static void flush_and_remove (CACHETABLE t, PAIR remove_me, int write_me) {
     lru_remove(t, remove_me);
     //printf("flush_callback(%lld,%p)\n", remove_me->key, remove_me->value);
     WHEN_TRACE_CT(printf("%s:%d CT flush_callback(%lld, %p, dirty=%d, 0)\n", __FILE__, __LINE__, remove_me->key, remove_me->value, remove_me->dirty && write_me)); 
+    //printf("%s:%d TAG=%x p=%p\n", __FILE__, __LINE__, remove_me->tag, remove_me);
+    //printf("%s:%d dirty=%d\n", __FILE__, __LINE__, remove_me->dirty);
     remove_me->flush_callback(remove_me->cachefile, remove_me->key, remove_me->value, remove_me->dirty && write_me, 0);
     t->n_in_table--;
     // Remove it from the hash chain.
@@ -272,8 +275,9 @@ int cachetable_put (CACHEFILE cachefile, CACHEKEY key, void*value,
 		    void*extraargs
 		    ) {
     int h = hashit(cachefile->cachetable, key);
-    PAIR p;
     WHEN_TRACE_CT(printf("%s:%d CT cachetable_put(%lld)=%p\n", __FILE__, __LINE__, key, value));
+    {
+	PAIR p;
 	for (p=cachefile->cachetable->table[h]; p; p=p->hash_chain) {
 	    if (p->key==key && p->cachefile==cachefile) {
 		// Semantically, these two asserts are not strictly right.  After all, when are two functions eq?
@@ -283,11 +287,14 @@ int cachetable_put (CACHEFILE cachefile, CACHEKEY key, void*value,
 		return -1; /* Already present. */
 	    }
 	}
+    }
     if (maybe_flush_some(cachefile->cachetable)) return -2;
     
-    MALLOC(p);
+    {
+	TAGMALLOC(PAIR, p);
 	p->pinned=1;
 	p->dirty =1;
+	//printf("%s:%d p=%p dirty=%d\n", __FILE__, __LINE__, p, p->dirty);
 	p->key = key;
 	p->value = value;
 	p->next = p->prev = 0;
@@ -300,6 +307,7 @@ int cachetable_put (CACHEFILE cachefile, CACHEKEY key, void*value,
 	cachefile->cachetable->table[h] = p;
 	cachefile->cachetable->n_in_table++;
 	return 0;
+    }
 }
 
 int cachetable_get_and_pin (CACHEFILE cachefile, CACHEKEY key, void**value,
@@ -354,6 +362,7 @@ int cachetable_unpin (CACHEFILE cachefile, CACHEKEY key, int dirty) {
     int h = hashit(t,key);
     PAIR p;
     WHEN_TRACE_CT(printf("%s:%d unpin(%lld)", __FILE__, __LINE__, key));
+    //printf("%s:%d is dirty now=%d\n", __FILE__, __LINE__, dirty);
     for (p=t->table[h]; p; p=p->hash_chain) {
 	if (p->key==key && p->cachefile==cachefile) {
 	    assert(p->pinned>0);

newbrt/yerror.h

 enum pma_errors { BRT_OK=0, BRT_ALREADY_THERE = -2, BRT_KEYEMPTY=-3 };
 
-enum typ_tag { TYP_BRTNODE = 0xdead0001, TYP_CACHETABLE, TYP_PMA };
+enum typ_tag { TYP_BRTNODE = 0xdead0001,
+	       TYP_CACHETABLE, TYP_PAIR, /* for cachetables */
+	       TYP_PMA };