216   assert( iDb==1 || sqlite3BtreeHoldsMutex(db->aDb[iDb].pBt) );  in sqlite3InitOne()
249   if( pDb->pBt==0 ){  in sqlite3InitOne()
259   sqlite3BtreeEnter(pDb->pBt);  in sqlite3InitOne()
260   if( sqlite3BtreeTxnState(pDb->pBt)==SQLITE_TXN_NONE ){  in sqlite3InitOne()
261     rc = sqlite3BtreeBeginTrans(pDb->pBt, 0, 0);  in sqlite3InitOne()
287     sqlite3BtreeGetMeta(pDb->pBt, i+1, (u32 *)&meta[i]);  in sqlite3InitOne()
330     sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);  in sqlite3InitOne()
361   initData.mxPage = sqlite3BtreeLastPage(pDb->pBt);  in sqlite3InitOne()
413     sqlite3BtreeCommit(pDb->pBt);  in sqlite3InitOne()
415   sqlite3BtreeLeave(pDb->pBt);  in sqlite3InitOne()
442   assert( sqlite3BtreeHoldsMutex(db->aDb[0].pBt) );  in sqlite3Init()
453     assert( i==1 || sqlite3BtreeHoldsMutex(db->aDb[i].pBt) );  in sqlite3Init()
501     Btree *pBt = db->aDb[iDb].pBt;     /* Btree database to read cookie from */  in schemaIsValid()  local
502     if( pBt==0 ) continue;  in schemaIsValid()
507     if( sqlite3BtreeTxnState(pBt)==SQLITE_TXN_NONE ){  in schemaIsValid()
508       rc = sqlite3BtreeBeginTrans(pBt, 0, 0);  in schemaIsValid()
520     sqlite3BtreeGetMeta(pBt, BTREE_SCHEMA_VERSION, (u32 *)&cookie);  in schemaIsValid()
529       sqlite3BtreeCommit(pBt);  in schemaIsValid()
735       Btree *pBt = db->aDb[i].pBt;  in sqlite3Prepare()  local
736       if( pBt ){  in sqlite3Prepare()
737         assert( sqlite3BtreeHoldsMutex(pBt) );  in sqlite3Prepare()
738         rc = sqlite3BtreeSchemaLocked(pBt);  in sqlite3Prepare()