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 _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;
}
