lockBtree        2072 ext/pdo_sqlite/sqlite/src/btree.c       rc = lockBtree(pBt);
lockBtree         880 ext/sqlite/libsqlite/src/btree.c     rc = lockBtree(pBt);
lockBtree        1044 ext/sqlite/libsqlite/src/btree.c     rc = lockBtree(pBt);
lockBtree        3430 ext/sqlite/libsqlite/src/btree.c   if( lockBtree(pBt)!=SQLITE_OK ){