CTEST(basement, empty)
{
int ret;
struct basement_iter iter;
struct basement *bsm = basement_new();
basement_iter_init(&iter, bsm);
basement_iter_seektofirst(&iter);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(0, ret);
struct msg m1 = {
.size = 6,
.data = "key-01"
};
basement_iter_seek(&iter, &m1);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(0, ret);
basement_free(bsm);
xcheck_all_free();
}
void _random_key(char *key,int length) {
int i;
char salt[36]= "abcdefghijklmnopqrstuvwxyz123456789";
for (i = 0; i < length; i++)
key[i] = salt[rand() % 36];
}
CTEST(basement, insert_and_lookup)
{
int i;
int ret;
int R = 1000;
char kbuf[KEY_SIZE];
char vbuf[VAL_SIZE];
struct basement_iter iter;
struct basement *bsm = basement_new();
struct msg **msgs = xcalloc(R, sizeof(*msgs));
struct txnid_pair xidpair = {
.child_xid = TXNID_NONE,
.parent_xid = TXNID_NONE
};
MSN msn = 0U;
_random_key(vbuf, VAL_SIZE);
for (i = 0; i < R; i++) {
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-%d", i);
struct msg k = {.data = kbuf, .size = KEY_SIZE};
struct msg v = {.data = vbuf, .size = VAL_SIZE};
msgs[i] = msgdup(&k);
basement_put(bsm,
msn++,
MSG_INSERT,
&k,
&v,
&xidpair
);
}
basement_iter_init(&iter, bsm);
basement_iter_seektolast(&iter);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
for (i = 0; i < R; i++) {
basement_iter_seek(&iter, msgs[i]);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
ret = msg_key_compare(msgs[i], &iter.key);
ASSERT_EQUAL(0, ret);
}
/* do msg free */
for (i = 0; i < R; i++) {
xfree(msgs[i]->data);
xfree(msgs[i]);
}
xfree(msgs);
basement_free(bsm);
xcheck_all_free();
}
int _findsmallest(struct basement **bsms,
int bsms_size,
struct cursor *cur,
struct search *so)
{
int i;
int ret;
int end;
struct basement_iter *smallest = NULL;
struct basement_iter iters[bsms_size];
/* seek each level */
for (i = (bsms_size - 1); i >= 0; i--) {
struct basement *bsm;
struct basement_iter *iter;
bsm = bsms[i];
iter = &iters[i];
basement_iter_init(iter, bsm);
if (so->key) {
/*
* sought position is >= position(so->key)
* so we should ensure that all sought iters positioned after so->key
*/
basement_iter_seek(iter, so->key);
if (so->slip != SLIP_ZERO) {
if (basement_iter_valid(iter) &&
(so->key_compare_func(&iter->key, so->key) == 0))
basement_iter_next(iter);
}
} else {
basement_iter_seektofirst(iter);
}
}
for (i = (bsms_size - 1); i >= 0; i--) {
struct basement_iter *iter = &iters[i];
if (basement_iter_valid(iter)) {
if (smallest == NULL) {
smallest = iter;
} else if (so->key_compare_func(&iter->key, &smallest->key) < 0) {
smallest = iter;
}
}
}
end = (basement_iter_valid(&iters[0]) == 0);
if (end) {
if (smallest) {
cur->valid = 1;
cur->key = smallest->key;
cur->val = smallest->val;
} else {
cur->valid = 0;
}
ret = CURSOR_EOF;
} else {
cur->valid = 1;
cur->key = smallest->key;
cur->val = smallest->val;
ret = CURSOR_CONTINUE;
}
return ret;
}
int _findlargest(struct basement **bsms,
int bsms_size,
struct cursor *cur,
struct search *so)
{
int i;
int ret;
int end;
struct basement_iter *largest = NULL;
struct basement_iter iters[bsms_size];
/* seek each level */
for (i = (bsms_size - 1); i >= 0; i--) {
struct basement *bsm;
struct basement_iter *iter;
bsm = bsms[i];
iter = &iters[i];
basement_iter_init(iter, bsm);
if (so->key) {
/*
* since basement_iter_seek is >=so->key,
* we should ensure that all sought iters positioned before so->key
*/
basement_iter_seek(iter, so->key);
if (basement_iter_valid(iter))
basement_iter_prev(iter);
else
basement_iter_seektolast(iter);
} else {
basement_iter_seektolast(iter);
}
}
for (i = (bsms_size - 1); i >= 0; i--) {
struct basement_iter *iter = &iters[i];
if (basement_iter_valid(iter)) {
if (largest == NULL) {
largest = iter;
} else if (so->key_compare_func(&iter->key, &largest->key) > 0) {
largest = iter;
}
}
}
end = (basement_iter_valid(&iters[0]) == 0);
if (end) {
if (largest) {
cur->valid = 1;
cur->key = largest->key;
cur->val = largest->val;
} else
cur->valid = 0;
ret = CURSOR_EOF;
} else {
cur->valid = 1;
cur->key = largest->key;
cur->val = largest->val;
ret = CURSOR_CONTINUE;
}
return ret;
}
/*
* apply parent's [leaf, right] messages to child node
*/
void _apply_msg_to_child(struct node *parent,
int child_num,
struct node *child,
struct msg *left,
struct msg *right)
{
int height;
struct basement *bsm;
struct basement_iter iter;
nassert(child != NULL);
nassert(parent->height > 0);
height = child->height;
if (height == 0)
bsm = child->u.l.le->bsm;
else
bsm = child->u.n.parts[child_num].buffer;
basement_iter_init(&iter, bsm);
basement_iter_seek(&iter, left);
while (basement_iter_valid_lessorequal(&iter, right)) {
struct bt_cmd cmd = {
.msn = iter.msn,
.type = iter.type,
.key = &iter.key,
.val = &iter.val,
.xidpair = iter.xidpair
};
if (nessunlikely(height == 0))
leaf_put_cmd(child, &cmd);
else
nonleaf_put_cmd(child, &cmd);
}
}
/*
* apply msgs from ances to leaf basement which are between(include) left and right
* REQUIRES:
* 1) leaf write-lock
* 2) ances all write-lock
*/
int leaf_apply_ancestors(struct node *leaf, struct ancestors *ances)
{
struct ancestors *ance;
struct msg *left = NULL;
struct msg *right = NULL;
struct basement_iter iter;
struct basement *bsm = leaf->u.l.le->bsm;
basement_iter_init(&iter, bsm);
basement_iter_seektofirst(&iter);
if (basement_iter_valid(&iter))
left = msgdup(&iter.key);
basement_iter_seektolast(&iter);
if (basement_iter_valid(&iter))
right = msgdup(&iter.key);
ance = ances;
while (ance && ance->next) {
/* apply [leaf, right] to leaf */
_apply_msg_to_child(ance->v,
ance->childnum,
ance->next->v,
left,
right);
ance = ances->next;
}
msgfree(left);
msgfree(right);
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();
}
CTEST(basement, multiversion)
{
int i;
int ret;
int R = 123;
char kbuf[KEY_SIZE];
char vbuf[VAL_SIZE];
struct basement_iter iter;
struct basement *bsm = basement_new();
struct txnid_pair xidpair = {
.child_xid = TXNID_NONE,
.parent_xid = TXNID_NONE
};
_random_key(vbuf, VAL_SIZE);
MSN msn = 0U;
for (i = 0; i < R; i++) {
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-%d", i);
struct msg k = {.data = kbuf, .size = KEY_SIZE};
struct msg v = {.data = vbuf, .size = VAL_SIZE};
basement_put(bsm,
msn++,
MSG_INSERT,
&k,
&v,
&xidpair
);
}
/* 3 versions of key-66 */
R = 3;
for (i = 0; i < R; i++) {
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-66");
struct msg k = {.data = kbuf, .size = KEY_SIZE};
struct msg v = {.data = vbuf, .size = VAL_SIZE};
basement_put(bsm,
msn++,
MSG_INSERT,
&k,
&v,
&xidpair
);
}
/* 5 versions of key-88 */
R = 5;
for (i = 0; i < R; i++) {
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-88");
struct msg k = {.data = kbuf, .size = KEY_SIZE};
struct msg v = {.data = vbuf, .size = VAL_SIZE};
basement_put(bsm,
msn++,
MSG_INSERT,
&k,
&v,
&xidpair
);
}
/* key-66 */
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-66");
struct msg k1 = {.data = kbuf, .size = KEY_SIZE};
basement_iter_init(&iter, bsm);
basement_iter_seek(&iter, &k1);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
ASSERT_EQUAL(66, iter.msn);
basement_iter_next(&iter);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
ASSERT_EQUAL(123, iter.msn);
/* less than valid */
ret = basement_iter_valid_lessorequal(&iter, &k1);
ASSERT_EQUAL(1, ret);
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-67");
k1.size = KEY_SIZE;
k1.data = kbuf;
ret = basement_iter_valid_lessorequal(&iter, &k1);
ASSERT_EQUAL(1, ret);
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-65");
k1.size = KEY_SIZE;
k1.data = kbuf;
ret = basement_iter_valid_lessorequal(&iter, &k1);
ASSERT_EQUAL(0, ret);
/* key-88 */
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-88");
struct msg k2 = {.data = kbuf, .size = KEY_SIZE};
basement_iter_seek(&iter, &k2);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
ASSERT_EQUAL(88, iter.msn);
basement_iter_next(&iter);
basement_iter_next(&iter);
ret = basement_iter_valid(&iter);
ASSERT_EQUAL(1, ret);
ASSERT_EQUAL(127, iter.msn);
/* next&prev diff key */
/* key-87 */
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-87");
struct msg k3 = {.data = kbuf, .size = KEY_SIZE};
basement_iter_prev_diff_key(&iter);
ret = msg_key_compare(&k3, &iter.key);
ASSERT_EQUAL(0, ret);
/* key-88 */
basement_iter_next(&iter);
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-88");
struct msg k22 = {.data = kbuf, .size = KEY_SIZE};
ret = msg_key_compare(&k22, &iter.key);
ASSERT_EQUAL(0, ret);
/* key-89 */
memset(kbuf, 0, KEY_SIZE);
snprintf(kbuf, KEY_SIZE, "key-89");
struct msg k4 = {.data = kbuf, .size = KEY_SIZE};
basement_iter_next_diff_key(&iter);
ret = msg_key_compare(&k4, &iter.key);
ASSERT_EQUAL(0, ret);
basement_free(bsm);
xcheck_all_free();
}