Hi,
Vadim's mail raises an important question on compression:
***** Databases are incompatible if the compression code changes
even very slightly ****
-> The bugfix I did yesterday changed the coding of certain values
from 4 to 5 bits, making previously comrpessed db unreadable.
Wev'e been thinking of ways to convert db's from one compression
version to another, it's very important but we can live without it for
some time.
Iv'e included a lot of code to look for compression errors and to
abort when it encounters something strange... this should avoid most
cases of core dumps like Vadim's. However due to the very nature of
compression (the compressed data "looks" randomized) this is
difficult.
The solution I'm going to add is a compression version on the header
of the compressed data to abort if the user is mixing compression
versions...that will be better than a core dump :-)
Cheers,
Marcel.
----------------------
Marcel Bosc
ECILA
100 av. du Gal Leclerc
93500 Pantin - France
Tel: 33 1 56 96 10 85
------------------------------------
To unsubscribe from the htdig3-dev mailing list, send a message to
[EMAIL PROTECTED]
You will receive a message to confirm this.
