/*
* __curfile_equals --
* WT_CURSOR->equals method for the btree cursor type.
*/
static int
__curfile_equals(WT_CURSOR *a, WT_CURSOR *b, int *equalp)
{
WT_CURSOR_BTREE *cbt;
WT_DECL_RET;
WT_SESSION_IMPL *session;
cbt = (WT_CURSOR_BTREE *)a;
CURSOR_API_CALL(a, session, equals, cbt->btree);
/*
* Check both cursors are a "file:" type then call the underlying
* function, it can handle cursors pointing to different objects.
*/
if (!WT_PREFIX_MATCH(a->internal_uri, "file:") ||
!WT_PREFIX_MATCH(b->internal_uri, "file:"))
WT_ERR_MSG(session, EINVAL,
"Cursors must reference the same object");
WT_CURSOR_CHECKKEY(a);
WT_CURSOR_CHECKKEY(b);
ret = __wt_btcur_equals(
(WT_CURSOR_BTREE *)a, (WT_CURSOR_BTREE *)b, equalp);
err: API_END_RET(session, ret);
}
/*
* __curbulk_insert_row_skip_check --
* Row-store bulk cursor insert, without key-sort checks.
*/
static int
__curbulk_insert_row_skip_check(WT_CURSOR *cursor)
{
WT_BTREE *btree;
WT_CURSOR_BULK *cbulk;
WT_DECL_RET;
WT_SESSION_IMPL *session;
cbulk = (WT_CURSOR_BULK *)cursor;
btree = cbulk->cbt.btree;
/*
* Bulk cursor inserts are updates, but don't need auto-commit
* transactions because they are single-threaded and not visible
* until the bulk cursor is closed.
*/
CURSOR_API_CALL(cursor, session, insert, btree);
WT_STAT_FAST_DATA_INCR(session, cursor_insert_bulk);
WT_CURSOR_CHECKKEY(cursor);
WT_CURSOR_CHECKVALUE(cursor);
ret = __wt_bulk_insert_row(session, cbulk);
err: API_END_RET(session, ret);
}
/*
* __curindex_compare --
* WT_CURSOR->compare method for the index cursor type.
*/
static int
__curindex_compare(WT_CURSOR *a, WT_CURSOR *b, int *cmpp)
{
WT_CURSOR_INDEX *cindex;
WT_DECL_RET;
WT_SESSION_IMPL *session;
cindex = (WT_CURSOR_INDEX *)a;
JOINABLE_CURSOR_API_CALL(a, session, compare, NULL);
/* Check both cursors are "index:" type. */
if (!WT_PREFIX_MATCH(a->uri, "index:") ||
strcmp(a->uri, b->uri) != 0)
WT_ERR_MSG(session, EINVAL,
"Cursors must reference the same object");
WT_CURSOR_CHECKKEY(a);
WT_CURSOR_CHECKKEY(b);
ret = __wt_compare(
session, cindex->index->collator, &a->key, &b->key, cmpp);
err: API_END_RET(session, ret);
}
/*
* __curbulk_insert_fix --
* Fixed-length column-store bulk cursor insert.
*/
static int
__curbulk_insert_fix(WT_CURSOR *cursor)
{
WT_BTREE *btree;
WT_CURSOR_BULK *cbulk;
WT_DECL_RET;
WT_SESSION_IMPL *session;
uint64_t recno;
cbulk = (WT_CURSOR_BULK *)cursor;
btree = cbulk->cbt.btree;
/*
* Bulk cursor inserts are updates, but don't need auto-commit
* transactions because they are single-threaded and not visible
* until the bulk cursor is closed.
*/
CURSOR_API_CALL(cursor, session, insert, btree);
WT_STAT_FAST_DATA_INCR(session, cursor_insert_bulk);
/*
* If the "append" flag was configured, the application doesn't have to
* supply a key, else require a key.
*/
if (F_ISSET(cursor, WT_CURSTD_APPEND))
recno = cbulk->recno + 1;
else {
WT_CURSOR_CHECKKEY(cursor);
if ((recno = cursor->recno) <= cbulk->recno)
WT_ERR(__bulk_col_keycmp_err(cbulk));
}
WT_CURSOR_CHECKVALUE(cursor);
/*
* Insert any skipped records as deleted records, update the current
* record count.
*/
for (; recno != cbulk->recno + 1; ++cbulk->recno)
WT_ERR(__wt_bulk_insert_fix(session, cbulk, true));
cbulk->recno = recno;
/* Insert the current record. */
ret = __wt_bulk_insert_fix(session, cbulk, false);
err: API_END_RET(session, ret);
}
/*
* __curbulk_insert_row --
* Row-store bulk cursor insert, with key-sort checks.
*/
static int
__curbulk_insert_row(WT_CURSOR *cursor)
{
WT_BTREE *btree;
WT_CURSOR_BULK *cbulk;
WT_DECL_RET;
WT_SESSION_IMPL *session;
int cmp;
cbulk = (WT_CURSOR_BULK *)cursor;
btree = cbulk->cbt.btree;
/*
* Bulk cursor inserts are updates, but don't need auto-commit
* transactions because they are single-threaded and not visible
* until the bulk cursor is closed.
*/
CURSOR_API_CALL(cursor, session, insert, btree);
WT_STAT_FAST_DATA_INCR(session, cursor_insert_bulk);
WT_CURSOR_CHECKKEY(cursor);
WT_CURSOR_CHECKVALUE(cursor);
/*
* If this isn't the first key inserted, compare it against the last key
* to ensure the application doesn't accidentally corrupt the table.
*/
if (!cbulk->first_insert) {
WT_ERR(__wt_compare(session,
btree->collator, &cursor->key, &cbulk->last, &cmp));
if (cmp <= 0)
WT_ERR(__bulk_row_keycmp_err(cbulk));
} else
cbulk->first_insert = false;
/* Save a copy of the key for the next comparison. */
WT_ERR(__wt_buf_set(session,
&cbulk->last, cursor->key.data, cursor->key.size));
ret = __wt_bulk_insert_row(session, cbulk);
err: API_END_RET(session, ret);
}
/*
* __curbulk_insert_var --
* Variable-length column-store bulk cursor insert.
*/
static int
__curbulk_insert_var(WT_CURSOR *cursor)
{
WT_BTREE *btree;
WT_CURSOR_BULK *cbulk;
WT_DECL_RET;
WT_SESSION_IMPL *session;
uint64_t recno;
cbulk = (WT_CURSOR_BULK *)cursor;
btree = cbulk->cbt.btree;
/*
* Bulk cursor inserts are updates, but don't need auto-commit
* transactions because they are single-threaded and not visible
* until the bulk cursor is closed.
*/
CURSOR_API_CALL(cursor, session, insert, btree);
WT_STAT_FAST_DATA_INCR(session, cursor_insert_bulk);
/*
* If the "append" flag was configured, the application doesn't have to
* supply a key, else require a key.
*/
if (F_ISSET(cursor, WT_CURSTD_APPEND))
recno = cbulk->recno + 1;
else {
WT_CURSOR_CHECKKEY(cursor);
if ((recno = cursor->recno) <= cbulk->recno)
WT_ERR(__bulk_col_keycmp_err(cbulk));
}
WT_CURSOR_CHECKVALUE(cursor);
if (!cbulk->first_insert) {
/*
* If not the first insert and the key space is sequential,
* compare the current value against the last value; if the
* same, just increment the RLE count.
*/
if (recno == cbulk->recno + 1 &&
cbulk->last.size == cursor->value.size &&
memcmp(cbulk->last.data,
cursor->value.data, cursor->value.size) == 0) {
++cbulk->rle;
++cbulk->recno;
goto duplicate;
}
/* Insert the previous key/value pair. */
WT_ERR(__wt_bulk_insert_var(session, cbulk, false));
} else
cbulk->first_insert = false;
/*
* Insert any skipped records as deleted records, update the current
* record count and RLE counter.
*/
if (recno != cbulk->recno + 1) {
cbulk->rle = (recno - cbulk->recno) - 1;
WT_ERR(__wt_bulk_insert_var(session, cbulk, true));
}
cbulk->rle = 1;
cbulk->recno = recno;
/* Save a copy of the value for the next comparison. */
ret = __wt_buf_set(session,
&cbulk->last, cursor->value.data, cursor->value.size);
duplicate:
err: API_END_RET(session, ret);
}