int cache_create_node_and_pin(struct cache_file *cf,
uint32_t height,
uint32_t children,
struct node **n)
{
NID next_nid;
struct cpair *p;
struct node *new_node;
struct cache *c = cf->cache;
next_nid = hdr_next_nid((struct tree*)cf->args);
if (height == 0)
new_node = leaf_alloc_empty(next_nid);
else
new_node = nonleaf_alloc_empty(next_nid, height, children);
p = cpair_new();
cpair_init(p, new_node, cf);
/* default lock type is L_WRITE */
write_lock(&p->value_lock);
*n = new_node;
/* add to cache list */
write_lock(&c->clock_lock);
_cache_insert(c, p);
write_unlock(&c->clock_lock);
return NESS_OK;
}
CTEST(node_serial_test, node_2th_part_empty)
{
int ret = 0;
NID nid;
uint32_t n_children = 3;
int fd = ness_os_open(BRT_FILE, O_RDWR | O_CREAT, 0777);
struct block *b = block_new();
struct hdr *hdr = (struct hdr*)xcalloc(1, sizeof(*hdr));
struct options *opts = options_new();
/*
* serialize
*/
struct node *dummy_node;
hdr->last_nid++;
nid = hdr->last_nid;
dummy_node = nonleaf_alloc_empty(nid, 1, n_children);
nonleaf_alloc_buffer(dummy_node);
struct msg p0;
p0.size = 6;
p0.data = "pivot0";
msgcpy(&dummy_node->u.n.pivots[0], &p0);
struct msg p1;
p1.size = 6;
p1.data = "pivot1";
msgcpy(&dummy_node->u.n.pivots[1], &p1);
MSN msn = 0U;
struct xids *xids = NULL;
struct msg k, v;
k.size = 5;
k.data = "hello";
v.size = 5;
v.data = "world";
basement_put(dummy_node->u.n.parts[0].buffer, &k, &v, MSG_INSERT, msn,
xids);
hdr->method = NESS_QUICKLZ_METHOD;
ret = serialize_node_to_disk(fd, b, dummy_node, hdr);
ASSERT_TRUE(ret > 0);
node_free(dummy_node);
//deserialize
int light = 0;
struct node *dummy_node1;
ret = deserialize_node_from_disk(fd, b, nid, &dummy_node1, light);
ASSERT_TRUE(ret > 0);
ASSERT_EQUAL(1, dummy_node1->height);
ASSERT_EQUAL(3, dummy_node1->u.n.n_children);
ASSERT_DATA((const unsigned char*)"pivot0",
6,
(const unsigned char*)dummy_node1->u.n.pivots[0].data,
dummy_node1->u.n.pivots[0].size);
ASSERT_DATA((const unsigned char*)"pivot1",
6,
(const unsigned char*)dummy_node1->u.n.pivots[1].data,
dummy_node1->u.n.pivots[1].size);
ASSERT_EQUAL(3, dummy_node1->u.n.n_children);
if (!light) {
int cmp;
struct basement_iter iter;
struct basement *bsm;
bsm = dummy_node1->u.n.parts[0].buffer;
basement_iter_init(&iter, bsm);
int mb_c = basement_count(dummy_node1->u.n.parts[0].buffer);
ASSERT_EQUAL(1, mb_c);
basement_iter_seek(&iter, &k);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
cmp = msg_key_compare(&k, &iter.key);
ASSERT_EQUAL(0, cmp);
cmp = msg_key_compare(&v, &iter.val);
ASSERT_EQUAL(0, cmp);
mb_c = basement_count(dummy_node1->u.n.parts[1].buffer);
ASSERT_EQUAL(0, mb_c);
}
node_free(dummy_node1);
ness_os_close(fd);
block_free(b);
xfree(hdr);
options_free(opts);
xcheck_all_free();
}
