/**
* Remove all extended keys for the given @a page from the
* extended key cache.
*/
static ham_status_t
my_fun_free_page_extkeys(ham_btree_t *be, ham_page_t *page, ham_u32_t flags)
{
ham_db_t *db=be_get_db(be);
ham_assert(page_get_owner(page) == db, (0));
ham_assert(0 == (flags & ~DB_MOVE_TO_FREELIST), (0));
/*
* if this page has a header, and it's either a B-Tree root page or
* a B-Tree index page: remove all extended keys from the cache,
* and/or free their blobs
*/
if (page_get_pers(page)
&& (!(page_get_npers_flags(page)&PAGE_NPERS_NO_HEADER))
&& (page_get_type(page)==PAGE_TYPE_B_ROOT
|| page_get_type(page)==PAGE_TYPE_B_INDEX))
{
ham_size_t i;
ham_offset_t blobid;
int_key_t *bte;
btree_node_t *node=ham_page_get_btree_node(page);
extkey_cache_t *c;
ham_assert(db, ("Must be set as page owner when this is a Btree page"));
ham_assert(db=page_get_owner(page), (""));
c=db_get_extkey_cache(db);
for (i=0; i<btree_node_get_count(node); i++)
{
bte=btree_node_get_key(db, node, i);
if (key_get_flags(bte)&KEY_IS_EXTENDED)
{
blobid=key_get_extended_rid(db, bte);
if (env_get_rt_flags(db_get_env(db))&HAM_IN_MEMORY_DB)
{
/* delete the blobid to prevent that it's freed twice */
*(ham_offset_t *)(key_get_key(bte)+
(db_get_keysize(db)-sizeof(ham_offset_t)))=0;
}
//(void)key_erase_record(db, bte, 0, BLOB_FREE_ALL_DUPES);
if (c)
(void)extkey_cache_remove(c, blobid);
}
}
}
return (HAM_SUCCESS);
}
static ham_status_t
__insert_cursor(ham_btree_t *be, ham_key_t *key, ham_record_t *record,
ham_bt_cursor_t *cursor, insert_hints_t *hints)
{
ham_status_t st;
ham_page_t *root;
ham_db_t *db=be_get_db(be);
ham_env_t *env = db_get_env(db);
insert_scratchpad_t scratchpad;
ham_assert(hints->force_append == HAM_FALSE, (0));
ham_assert(hints->force_prepend == HAM_FALSE, (0));
/*
* initialize the scratchpad
*/
memset(&scratchpad, 0, sizeof(scratchpad));
scratchpad.be=be;
scratchpad.record=record;
scratchpad.cursor=cursor;
/*
* get the root-page...
*/
ham_assert(btree_get_rootpage(be)!=0, ("btree has no root page"));
st=db_fetch_page(&root, db, btree_get_rootpage(be), 0);
ham_assert(st ? root == NULL : 1, (0));
if (st)
return st;
/*
* ... and start the recursion
*/
st=__insert_recursive(root, key, 0, &scratchpad, hints);
/*
* if the root page was split, we have to create a new
* root page.
*/
if (st==SPLIT) {
ham_page_t *newroot;
btree_node_t *node;
/*
* the root-page will be changed...
*/
st=ham_log_add_page_before(root);
if (st)
return (st);
/*
* allocate a new root page
*/
st=db_alloc_page(&newroot, db, PAGE_TYPE_B_ROOT, 0);
ham_assert(st ? newroot == NULL : 1, (0));
if (st)
return (st);
ham_assert(page_get_owner(newroot), (""));
/* clear the node header */
memset(page_get_payload(newroot), 0, sizeof(btree_node_t));
stats_page_is_nuked(db, root, HAM_TRUE);
/*
* insert the pivot element and the ptr_left
*/
node=ham_page_get_btree_node(newroot);
btree_node_set_ptr_left(node, btree_get_rootpage(be));
st=__insert_nosplit(newroot, &scratchpad.key,
scratchpad.rid, scratchpad.record, scratchpad.cursor,
hints);
ham_assert(!(scratchpad.key.flags & HAM_KEY_USER_ALLOC), (0));
scratchpad.cursor=0; /* don't overwrite cursor if __insert_nosplit
is called again */
if (st) {
ham_assert(!(scratchpad.key.flags & HAM_KEY_USER_ALLOC), (0));
if (scratchpad.key.data)
allocator_free(env_get_allocator(env), scratchpad.key.data);
return (st);
}
/*
* set the new root page
*
* !!
* do NOT delete the old root page - it's still in use!
*
* also don't forget to flush the backend - otherwise the header
* page of the database will not contain the updated information.
* The backend is flushed when the database is closed, but if
* recovery is enabled then the flush here is critical.
*/
btree_set_rootpage(be, page_get_self(newroot));
be_set_dirty(be, HAM_TRUE);
be->_fun_flush(be);
/*
* As we re-purpose a page, we will reset its pagecounter
* as well to signal its first use as the new type assigned
* here.
*/
if (env_get_cache(env) && (page_get_type(root)!=PAGE_TYPE_B_INDEX))
cache_update_page_access_counter(root, env_get_cache(env), 0);
page_set_type(root, PAGE_TYPE_B_INDEX);
page_set_dirty(root, env);
page_set_dirty(newroot, env);
/* the root page was modified (btree_set_rootpage) - make sure that
* it's logged */
if (env_get_rt_flags(env)&HAM_ENABLE_RECOVERY) {
st=txn_add_page(env_get_txn(env), env_get_header_page(env),
HAM_TRUE);
if (st)
return (st);
}
}
/*
* release the scratchpad-memory and return to caller
*/
ham_assert(!(scratchpad.key.flags & HAM_KEY_USER_ALLOC), (0));
if (scratchpad.key.data)
allocator_free(env_get_allocator(env), scratchpad.key.data);
return (st);
}
