581   closure_cursor *pCur;  in closureOpen()  local
582   pCur = sqlite3_malloc( sizeof(*pCur) );  in closureOpen()
583   if( pCur==0 ) return SQLITE_NOMEM;  in closureOpen()
584   memset(pCur, 0, sizeof(*pCur));  in closureOpen()
585   pCur->pVtab = p;  in closureOpen()
586   *ppCursor = &pCur->base;  in closureOpen()
595 static void closureClearCursor(closure_cursor *pCur){  in closureClearCursor()  argument
596   closureAvlDestroy(pCur->pClosure, (void(*)(closure_avl*))sqlite3_free);  in closureClearCursor()
597   sqlite3_free(pCur->zTableName);  in closureClearCursor()
598   sqlite3_free(pCur->zIdColumn);  in closureClearCursor()
599   sqlite3_free(pCur->zParentColumn);  in closureClearCursor()
600   pCur->zTableName = 0;  in closureClearCursor()
601   pCur->zIdColumn = 0;  in closureClearCursor()
602   pCur->zParentColumn = 0;  in closureClearCursor()
603   pCur->pCurrent = 0;  in closureClearCursor()
604   pCur->pClosure = 0;  in closureClearCursor()
611   closure_cursor *pCur = (closure_cursor *)cur;  in closureClose()  local
612   closureClearCursor(pCur);  in closureClose()
613   pCur->pVtab->nCursor--;  in closureClose()
614   sqlite3_free(pCur);  in closureClose()
622   closure_cursor *pCur = (closure_cursor*)cur;  in closureNext()  local
623   pCur->pCurrent = closureAvlNext(pCur->pCurrent);  in closureNext()
632   closure_cursor *pCur,   /* The cursor into which to add the node */  in closureInsertNode()  argument
641   closureAvlInsert(&pCur->pClosure, pNew);  in closureInsertNode()
662   closure_cursor *pCur = (closure_cursor *)pVtabCursor;  in closureFilter()  local
663   closure_vtab *pVtab = pCur->pVtab;  in closureFilter()
677   closureClearCursor(pCur);  in closureFilter()
690     pCur->zTableName = sqlite3_mprintf("%s", zTableName);  in closureFilter()
694     pCur->zIdColumn = sqlite3_mprintf("%s", zIdColumn);  in closureFilter()
698     pCur->zParentColumn = sqlite3_mprintf("%s", zParentColumn);  in closureFilter()
716     rc = closureInsertNode(&sQueue, pCur, iRoot, 0);  in closureFilter()
724         if( closureAvlSearch(pCur->pClosure, iNew)==0 ){  in closureFilter()
725           rc = closureInsertNode(&sQueue, pCur, iNew, pAvl->iGeneration+1);  in closureFilter()
733     pCur->pCurrent = closureAvlFirst(pCur->pClosure);  in closureFilter()
744   closure_cursor *pCur = (closure_cursor*)cur;  in closureColumn()  local
747       sqlite3_result_int64(ctx, pCur->pCurrent->id);  in closureColumn()
751       sqlite3_result_int(ctx, pCur->pCurrent->iGeneration);  in closureColumn()
760          pCur->zTableName ? pCur->zTableName : pCur->pVtab->zTableName,  in closureColumn()
766          pCur->zIdColumn ? pCur->zIdColumn : pCur->pVtab->zIdColumn,  in closureColumn()
772          pCur->zParentColumn ? pCur->zParentColumn : pCur->pVtab->zParentColumn,  in closureColumn()
784   closure_cursor *pCur = (closure_cursor*)cur;  in closureRowid()  local
785   *pRowid = pCur->pCurrent->id;  in closureRowid()
793   closure_cursor *pCur = (closure_cursor*)cur;  in closureEof()  local
794   return pCur->pCurrent==0;  in closureEof()