lockBtree        49705 third_party/sqlite/amalgamation/sqlite3.c     while( pBt->pPage1==0 && SQLITE_OK==(rc = lockBtree(pBt)) );
lockBtree        2586 third_party/sqlite/src/src/btree.c     while( pBt->pPage1==0 && SQLITE_OK==(rc = lockBtree(pBt)) );