mirror of
https://github.com/FirebirdSQL/firebird.git
synced 2025-01-22 16:03:03 +01:00
Reworked index root page related code, added some debugging
This commit is contained in:
AlexPeshkoff
parent
aaaa7ba427
commit
28bdd0bf99
@ -531,6 +531,32 @@ Cached::Index* RelationPermanent::lookupIndex(thread_db* tdbb, MetaId id, Object
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}
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PageNumber RelationPermanent::getIndexRootPage(thread_db* tdbb)
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{
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/**************************************
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*
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* g e t _ r o o t _ p a g e
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*
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**************************************
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*
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* Functional description
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* Find the root page for a relation.
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*
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**************************************/
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SET_TDBB(tdbb);
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RelationPages* relPages = getPages(tdbb);
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SLONG page = relPages->rel_index_root;
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if (!page)
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{
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DPM_scan_pages(tdbb);
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page = relPages->rel_index_root;
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}
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return PageNumber(relPages->rel_pg_space_id, page);
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}
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const char* IndexPermanent::c_name() const
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{
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// Here we use MetaName feature - pointers in it are DBB-lifetime stable
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@ -872,8 +872,8 @@ public:
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rel_file = f;
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}
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void getRelLockKey(thread_db* tdbb, UCHAR* key);
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void getRelLockKey(thread_db* tdbb, UCHAR* key);
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PageNumber getIndexRootPage(thread_db* tdbb);
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bool isSystem() const;
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bool isTemporary() const;
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135
src/jrd/btr.cpp
135
src/jrd/btr.cpp
@ -219,7 +219,7 @@ static void delete_tree(thread_db*, MetaId, MetaId, PageNumber, PageNumber);
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static DSC* eval(thread_db*, const ValueExprNode*, DSC*, bool*);
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static ULONG fast_load(thread_db*, IndexCreation&, SelectivityList&);
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static index_root_page* fetch_root(thread_db*, WIN*, const RelationPermanent*, const RelationPages*);
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static const index_root_page* fetch_root(thread_db*, WIN*, const RelationPermanent*, const RelationPages*);
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static UCHAR* find_node_start_point(btree_page*, temporary_key*, UCHAR*, USHORT*,
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bool, bool, bool = false, RecordNumber = NO_VALUE);
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@ -250,6 +250,74 @@ static void update_selectivity(index_root_page*, MetaId, const SelectivityList&)
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static void checkForLowerKeySkip(bool&, const bool, const IndexNode&, const temporary_key&,
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const index_desc&, const IndexRetrieval*);
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//#define DEBUG_INDEX_ROOT
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namespace {
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#ifdef DEBUG_INDEX_ROOT
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class Flags
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{
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public:
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static const char* state(const index_root_page::irt_repeat& rpt)
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{
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if (!rpt.isUsed())
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return "Unused";
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switch (rpt.getState())
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{
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case irt_in_progress: return "irt_in_progress";
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case irt_commit: return "irt_commit";
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case irt_drop: return "irt_drop";
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case irt_rollback: return "irt_rollback";
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case irt_normal: return "irt_normal";
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}
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return "** UNKNOWN **";
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}
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};
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void dumpIndexRoot(const char* up, const char* from, thread_db* tdbb, WIN* window, const index_root_page* root)
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{
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if (root->irt_relation > 127)
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{
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auto* rel = MetadataCache::lookupRelation(tdbb, root->irt_relation, 0);
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printf("\n%sFrom %s page=%" ULONGFORMAT " len=%d rel %s(%d)\n",
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up, from, window->win_page.getPageNum(), root->irt_count, rel->c_name(), root->irt_relation);
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for (MetaId i = 0; i < root->irt_count; ++i)
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{
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auto* idp = rel->lookupIndex(tdbb, i, 0);
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auto& rpt = root->irt_rpt[i];
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printf("Index %d %s root %d tra % " SQUADFORMAT " %s\n", i, idp ? idp->getName().c_str() : "not-found",
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rpt.getRoot(), rpt.getTransaction(), Flags::state(rpt));
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}
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printf("\n");
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}
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}
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#else
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void dumpIndexRoot(...) { }
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#endif
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}
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index_root_page* BTR_fetch_root_for_update(const char* from, thread_db* tdbb, WIN* window)
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{
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index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, window, LCK_write, pag_root);
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dumpIndexRoot("Upd", from, tdbb, window, root);
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return root;
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}
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const index_root_page* BTR_fetch_root(const char* from, thread_db* tdbb, WIN* window)
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{
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const index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, window, LCK_read, pag_root);
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dumpIndexRoot("", from, tdbb, window, root);
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return root;
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}
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// IndexRetrieval class
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@ -409,7 +477,7 @@ void BTR_all(thread_db* tdbb, Cached::Relation* relation, IndexDescList& idxList
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WIN window(relPages->rel_pg_space_id, -1);
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index_root_page* const root = fetch_root(tdbb, &window, relation, relPages);
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const index_root_page* const root = fetch_root(tdbb, &window, relation, relPages);
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if (!root)
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return;
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@ -505,9 +573,8 @@ void BTR_create(thread_db* tdbb,
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// Index is created. Go back to the index root page and update it to
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// point to the index.
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RelationPages* const relPages = relation->getPages(tdbb);
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WIN window(relPages->rel_pg_space_id, relPages->rel_index_root);
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index_root_page* const root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_root);
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WIN window(getPermanent(relation)->getIndexRootPage(tdbb));
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index_root_page* const root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
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CCH_MARK(tdbb, &window);
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switch(creation.forRollback)
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@ -592,7 +659,7 @@ static void badState [[noreturn]] (const index_root_page::irt_repeat* irt_desc,
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}
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void BTR_mark_index_for_delete(thread_db* tdbb, WIN* window, MetaId id)
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void BTR_mark_index_for_delete(thread_db* tdbb, Cached::Relation* relation, MetaId id)
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{
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/**************************************
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*
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@ -608,15 +675,15 @@ void BTR_mark_index_for_delete(thread_db* tdbb, WIN* window, MetaId id)
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const Database* dbb = tdbb->getDatabase();
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CHECK_DBB(dbb);
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// Get index descriptor. If index doesn't exist, just leave.
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index_root_page* const root = (index_root_page*) window->win_buffer;
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WIN window(relation->getIndexRootPage(tdbb));
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index_root_page* const root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
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// Get index descriptor. If index doesn't exist, just leave.
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if (id < root->irt_count)
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{
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index_root_page::irt_repeat* irt_desc = root->irt_rpt + id;
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CCH_MARK(tdbb, window);
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const PageNumber next(window->win_page.getPageSpaceID(), irt_desc->getRoot());
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CCH_MARK(tdbb, &window);
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jrd_tra* tra = tdbb->getTransaction();
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fb_assert(tra);
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@ -660,11 +727,11 @@ void BTR_mark_index_for_delete(thread_db* tdbb, WIN* window, MetaId id)
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}
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}
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CCH_RELEASE(tdbb, window);
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CCH_RELEASE(tdbb, &window);
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}
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void BTR_activate_index(thread_db* tdbb, WIN* window, MetaId id)
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void BTR_activate_index(thread_db* tdbb, Cached::Relation* relation, MetaId id)
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{
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/**************************************
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*
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@ -680,15 +747,15 @@ void BTR_activate_index(thread_db* tdbb, WIN* window, MetaId id)
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const Database* dbb = tdbb->getDatabase();
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CHECK_DBB(dbb);
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// Get index descriptor. If index doesn't exist, just leave.
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index_root_page* const root = (index_root_page*) window->win_buffer;
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WIN window(relation->getIndexRootPage(tdbb));
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index_root_page* const root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
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// Get index descriptor. If index doesn't exist, just leave.
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if (id < root->irt_count)
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{
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index_root_page::irt_repeat* irt_desc = root->irt_rpt + id;
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CCH_MARK(tdbb, window);
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const PageNumber next(window->win_page.getPageSpaceID(), irt_desc->getRoot());
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CCH_MARK(tdbb, &window);
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jrd_tra* tra = tdbb->getTransaction();
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fb_assert(tra);
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@ -733,11 +800,11 @@ void BTR_activate_index(thread_db* tdbb, WIN* window, MetaId id)
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}
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}
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CCH_RELEASE(tdbb, window);
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CCH_RELEASE(tdbb, &window);
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}
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bool BTR_description(thread_db* tdbb, Cached::Relation* relation, index_root_page* root, index_desc* idx,
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bool BTR_description(thread_db* tdbb, Cached::Relation* relation, const index_root_page* root, index_desc* idx,
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MetaId id)
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{
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/**************************************
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@ -1263,7 +1330,7 @@ btree_page* BTR_find_page(thread_db* tdbb,
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fb_assert(window->win_page.getPageSpaceID() == relPages->rel_pg_space_id);
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window->win_page = relPages->rel_index_root;
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index_root_page* rpage = (index_root_page*) CCH_FETCH(tdbb, window, LCK_read, pag_root);
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const index_root_page* rpage = BTR_fetch_root(FB_FUNCTION, tdbb, window);
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if (!BTR_description(tdbb, retrieval->getPermRelation(), rpage, idx, retrieval->irb_index))
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{
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@ -1373,7 +1440,7 @@ void BTR_insert(thread_db* tdbb, WIN* root_window, index_insertion* insertion)
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// The top of the index has split. We need to make a new level and
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// update the index root page. Oh boy.
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index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, root_window, LCK_write, pag_root);
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index_root_page* root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, root_window);
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window.win_page = root->irt_rpt[idx->idx_id].getRoot();
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bucket = (btree_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_index);
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@ -1849,7 +1916,7 @@ bool BTR_lookup(thread_db* tdbb, Cached::Relation* relation, MetaId id, index_de
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SET_TDBB(tdbb);
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WIN window(relPages->rel_pg_space_id, -1);
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index_root_page* const root = fetch_root(tdbb, &window, relation, relPages);
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const index_root_page* const root = fetch_root(tdbb, &window, relation, relPages);
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if (!root)
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return false;
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@ -2142,9 +2209,9 @@ bool BTR_next_index(thread_db* tdbb, Cached::Relation* relation, jrd_tra* transa
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else
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id = idx->idx_id + 1;
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index_root_page* root;
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const index_root_page* root;
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if (window->win_bdb)
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root = (index_root_page*) window->win_buffer;
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root = (const index_root_page*) window->win_buffer;
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else
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{
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RelationPages* const relPages = transaction ?
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@ -2205,8 +2272,8 @@ bool BTR_next_index(thread_db* tdbb, Cached::Relation* relation, jrd_tra* transa
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if (rls)
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CCH_RELEASE(tdbb, window);
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root = (index_root_page*) CCH_FETCH(tdbb, window, LCK_write, pag_root);
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index_root_page::irt_repeat* irt_write = root->irt_rpt + id;
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auto* root_write = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, window);
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index_root_page::irt_repeat* irt_write = root_write->irt_rpt + id;
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const TraNumber descTrans = irt_write->getTransaction();
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bool delIndex = false;
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@ -2261,7 +2328,7 @@ bool BTR_next_index(thread_db* tdbb, Cached::Relation* relation, jrd_tra* transa
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else
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CCH_RELEASE(tdbb, window);
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root = (index_root_page*) CCH_FETCH(tdbb, window, LCK_read, pag_root);
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root = BTR_fetch_root(FB_FUNCTION, tdbb, window);
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if (delIndex)
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continue;
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@ -2323,7 +2390,7 @@ void BTR_remove(thread_db* tdbb, WIN* root_window, index_insertion* insertion)
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CCH_RELEASE(tdbb, &window);
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CCH_RELEASE(tdbb, root_window);
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index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, root_window, LCK_write, pag_root);
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index_root_page* root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, root_window);
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page = (btree_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_index);
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// get the page number of the child, and check to make sure
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@ -2400,7 +2467,7 @@ void BTR_reserve_slot(thread_db* tdbb, IndexCreation& creation, IndexCreateLock&
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fb_assert((!use_idx_id) || (idx->idx_id <= dbb->dbb_max_idx));
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WIN window(relPages->rel_pg_space_id, relPages->rel_index_root);
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index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_root);
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index_root_page* root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
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CCH_MARK(tdbb, &window);
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// check that we create no more indexes than will fit on a single root page
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@ -2513,7 +2580,7 @@ void BTR_selectivity(thread_db* tdbb, Cached::Relation* relation, MetaId id, Sel
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RelationPages* relPages = relation->getPages(tdbb);
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WIN window(relPages->rel_pg_space_id, -1);
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index_root_page* root = fetch_root(tdbb, &window, relation, relPages);
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const index_root_page* root = fetch_root(tdbb, &window, relation, relPages);
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if (!root)
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return;
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@ -2690,9 +2757,9 @@ void BTR_selectivity(thread_db* tdbb, Cached::Relation* relation, MetaId id, Sel
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// Store the selectivity on the root page
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window.win_page = relPages->rel_index_root;
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window.win_flags = 0;
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root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_root);
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auto* write_root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
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CCH_MARK(tdbb, &window);
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update_selectivity(root, id, selectivity);
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update_selectivity(write_root, id, selectivity);
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CCH_RELEASE(tdbb, &window);
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}
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@ -4621,8 +4688,8 @@ static ULONG fast_load(thread_db* tdbb,
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}
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static index_root_page* fetch_root(thread_db* tdbb, WIN* window, const RelationPermanent* relation,
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const RelationPages* relPages)
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static const index_root_page* fetch_root(thread_db* tdbb, WIN* window, const RelationPermanent* relation,
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const RelationPages* relPages)
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{
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/**************************************
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*
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@ -4651,7 +4718,7 @@ static index_root_page* fetch_root(thread_db* tdbb, WIN* window, const RelationP
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window->win_page = relPages->rel_index_root;
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}
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return (index_root_page*) CCH_FETCH(tdbb, window, LCK_read, pag_root);
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return BTR_fetch_root(FB_FUNCTION, tdbb, window);
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}
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@ -30,11 +30,11 @@
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#include "../jrd/exe.h"
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void BTR_all(Jrd::thread_db*, Jrd::Cached::Relation*, Jrd::IndexDescList&, Jrd::RelationPages*);
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void BTR_activate_index(Jrd::thread_db*, Jrd::win*, MetaId);
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void BTR_activate_index(Jrd::thread_db*, Jrd::Cached::Relation*, MetaId);
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void BTR_complement_key(Jrd::temporary_key*);
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void BTR_create(Jrd::thread_db*, Jrd::IndexCreation&, Jrd::SelectivityList&);
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bool BTR_delete_index(Jrd::thread_db*, Jrd::win*, MetaId);
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bool BTR_description(Jrd::thread_db*, Jrd::Cached::Relation*, Ods::index_root_page*, Jrd::index_desc*, MetaId);
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bool BTR_description(Jrd::thread_db*, Jrd::Cached::Relation*, const Ods::index_root_page*, Jrd::index_desc*, MetaId);
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bool BTR_check_condition(Jrd::thread_db*, Jrd::index_desc*, Jrd::Record*);
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DSC* BTR_eval_expression(Jrd::thread_db*, Jrd::index_desc*, Jrd::Record*, bool&);
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void BTR_evaluate(Jrd::thread_db*, const Jrd::IndexRetrieval*, Jrd::RecordBitmap**, Jrd::RecordBitmap*);
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@ -50,11 +50,13 @@ bool BTR_lookup(Jrd::thread_db*, Jrd::Cached::Relation*, MetaId, Jrd::index_desc
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Jrd::idx_e BTR_make_key(Jrd::thread_db*, USHORT, const Jrd::ValueExprNode* const*, const Jrd::index_desc*,
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Jrd::temporary_key*, USHORT);
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void BTR_make_null_key(Jrd::thread_db*, const Jrd::index_desc*, Jrd::temporary_key*);
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void BTR_mark_index_for_delete(Jrd::thread_db* tdbb, Jrd::win* window, MetaId id);
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void BTR_mark_index_for_delete(Jrd::thread_db* tdbb, Jrd::Cached::Relation*, MetaId id);
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bool BTR_next_index(Jrd::thread_db*, Jrd::Cached::Relation*, Jrd::jrd_tra*, Jrd::index_desc*, Jrd::win*);
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void BTR_remove(Jrd::thread_db*, Jrd::win*, Jrd::index_insertion*);
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void BTR_reserve_slot(Jrd::thread_db*, Jrd::IndexCreation&, Jrd::IndexCreateLock&);
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void BTR_selectivity(Jrd::thread_db*, Jrd::Cached::Relation*, MetaId, Jrd::SelectivityList&);
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bool BTR_types_comparable(const dsc& target, const dsc& source);
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Ods::index_root_page* BTR_fetch_root_for_update(const char* from, Jrd::thread_db* tdbb, Jrd::win* window);
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const Ods::index_root_page* BTR_fetch_root(const char* from, Jrd::thread_db* tdbb, Jrd::win* window);
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#endif // JRD_BTR_PROTO_H
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@ -149,8 +149,7 @@ void IDX_check_access(thread_db* tdbb, CompilerScratch* csb, Cached::Relation* v
|
||||
|
||||
referenced_window.win_page = get_root_page(tdbb, getPermanent(referenced_relation));
|
||||
referenced_window.win_flags = 0;
|
||||
index_root_page* referenced_root =
|
||||
(index_root_page*) CCH_FETCH(tdbb, &referenced_window, LCK_read, pag_root);
|
||||
auto* referenced_root = BTR_fetch_root(FB_FUNCTION, tdbb, &referenced_window);
|
||||
index_desc referenced_idx;
|
||||
if (!BTR_description(tdbb, getPermanent(referenced_relation), referenced_root,
|
||||
&referenced_idx, index_id))
|
||||
@ -205,7 +204,7 @@ bool IDX_check_master_types(thread_db* tdbb, index_desc& idx, Cached::Relation*
|
||||
|
||||
// get the index root page for the partner relation
|
||||
WIN window(get_root_page(tdbb, partner_relation));
|
||||
index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_read, pag_root);
|
||||
auto* root = BTR_fetch_root(FB_FUNCTION, tdbb, &window);
|
||||
|
||||
// get the description of the partner index
|
||||
const bool ok = BTR_description(tdbb, partner_relation, root, &partner_idx, idx.idx_primary_index);
|
||||
@ -980,10 +979,7 @@ void IDX_create_index(thread_db* tdbb,
|
||||
|
||||
void IDX_activate_index(thread_db* tdbb, Cached::Relation* relation, MetaId id)
|
||||
{
|
||||
WIN window(get_root_page(tdbb, relation));
|
||||
CCH_FETCH(tdbb, &window, LCK_write, pag_root);
|
||||
|
||||
BTR_activate_index(tdbb, &window, id);
|
||||
BTR_activate_index(tdbb, relation, id);
|
||||
}
|
||||
|
||||
|
||||
@ -1003,12 +999,10 @@ void IDX_delete_index(thread_db* tdbb, Cached::Relation* relation, MetaId id)
|
||||
|
||||
signal_index_deletion(tdbb, relation, id);
|
||||
|
||||
WIN window(get_root_page(tdbb, relation));
|
||||
CCH_FETCH(tdbb, &window, LCK_write, pag_root);
|
||||
BTR_mark_index_for_delete(tdbb, relation, id);
|
||||
|
||||
BTR_mark_index_for_delete(tdbb, &window, id);
|
||||
/* ??????????????????
|
||||
if ((getPermanent(relation)->rel_flags & REL_temp_conn) && (relation->getPages(tdbb)->rel_instance_id != 0) &&
|
||||
if ((relation->rel_flags & REL_temp_conn) && (relation->getPages(tdbb)->rel_instance_id != 0) &&
|
||||
tree_exists)
|
||||
{
|
||||
IndexPermanent* idx_lock = relation->getIndexLock(tdbb, id);
|
||||
@ -1037,14 +1031,14 @@ void IDX_delete_indices(thread_db* tdbb, RelationPermanent* relation, RelationPa
|
||||
fb_assert(relPages->rel_index_root);
|
||||
|
||||
WIN window(relPages->rel_pg_space_id, relPages->rel_index_root);
|
||||
index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_root);
|
||||
index_root_page* root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
|
||||
|
||||
// const bool is_temp = (relation->rel_flags & REL_temp_conn) && (relPages->rel_instance_id != 0);
|
||||
|
||||
for (USHORT i = 0; i < root->irt_count; i++)
|
||||
{
|
||||
const bool tree_exists = BTR_delete_index(tdbb, &window, i);
|
||||
root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_root);
|
||||
root = BTR_fetch_root_for_update(FB_FUNCTION, tdbb, &window);
|
||||
/* !!!!!!!!!!!!!!
|
||||
if (is_temp && tree_exists)
|
||||
{
|
||||
@ -1126,7 +1120,7 @@ void IDX_garbage_collect(thread_db* tdbb, record_param* rpb, RecordStack& going,
|
||||
|
||||
WIN window(get_root_page(tdbb, getPermanent(rpb->rpb_relation)));
|
||||
|
||||
index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_read, pag_root);
|
||||
auto* root = BTR_fetch_root(FB_FUNCTION, tdbb, &window);
|
||||
|
||||
for (USHORT i = 0; i < root->irt_count; i++)
|
||||
{
|
||||
@ -1206,7 +1200,7 @@ void IDX_garbage_collect(thread_db* tdbb, record_param* rpb, RecordStack& going,
|
||||
// Get rid of index node
|
||||
|
||||
BTR_remove(tdbb, &window, &insertion);
|
||||
root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_read, pag_root);
|
||||
root = BTR_fetch_root(FB_FUNCTION, tdbb, &window);
|
||||
|
||||
if (stack1.hasMore(1))
|
||||
BTR_description(tdbb, getPermanent(rpb->rpb_relation), root, &idx, i);
|
||||
@ -1796,7 +1790,7 @@ static idx_e check_partner_index(thread_db* tdbb,
|
||||
// get the index root page for the partner relation
|
||||
|
||||
WIN window(get_root_page(tdbb, getPermanent(partner_relation)));
|
||||
index_root_page* root = (index_root_page*) CCH_FETCH(tdbb, &window, LCK_read, pag_root);
|
||||
auto* root = BTR_fetch_root(FB_FUNCTION, tdbb, &window);
|
||||
|
||||
// get the description of the partner index
|
||||
|
||||
@ -1943,17 +1937,7 @@ static PageNumber get_root_page(thread_db* tdbb, Cached::Relation* relation)
|
||||
* Find the root page for a relation.
|
||||
*
|
||||
**************************************/
|
||||
SET_TDBB(tdbb);
|
||||
|
||||
RelationPages* relPages = relation->getPages(tdbb);
|
||||
SLONG page = relPages->rel_index_root;
|
||||
if (!page)
|
||||
{
|
||||
DPM_scan_pages(tdbb);
|
||||
page = relPages->rel_index_root;
|
||||
}
|
||||
|
||||
return PageNumber(relPages->rel_pg_space_id, page);
|
||||
return relation->getIndexRootPage(tdbb);
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user