eLockType        53195 ext/sqlite3/libsqlite/sqlite3.c   int eLockType          /* Required lock type (READ_LOCK or WRITE_LOCK) */
eLockType        53206 ext/sqlite3/libsqlite/sqlite3.c    || (eLockType==READ_LOCK && (pBtree->db->flags & SQLITE_ReadUncommitted))
eLockType        53248 ext/sqlite3/libsqlite/sqlite3.c      && pLock->eLock>=eLockType