Re: [Tsp-devel] BB: new dump & load features

[Eric Noulard]

2007/5/4, Frederik Deweerdt <address@hidden>:
> Hi,
>
> The CVS repo contains two new features for the blackboard:
> - An option to dump the bb in a given format, you can now run:
>         $ bb_tools dump bb_simu xml
>   and the you'll get and xml version of the BB structure
>   Additionaly, an md5 sum is displayed to ensure the integrity of the
>   dumped contents.

What is exactly md5sum-med?
The binary content of the BB memory region?
The content of the XML generated file (minus the <!-- md5= xxxx -->
Does load use the sum before loading?

How bb_tools is supposed to use the md5sum?


> - An option to load an xml file into the blackboard.
>   1) If the BB does not exist, we create it and fill it with the
>   values given in the xml file.
>   2) If the BB exists, then only the values will be restored
>   The syntax is:
>         $ bb_tools load newbb myconf.xml
>   (myconf.xml has been generated by a call to bb_tools dump)

This is just great and it works for me :))
I've added the "bb_load" script wrapper
in src/util/libbb/bbtools/bb_load

when installed you may then use the busybox-like "shortcut"
bb_load newbb myconf.xml

> Note that you need openssl libraries for the md5 sum, and libxml2 for
> the xml format.
> Ideas and reports of success or failure are welcomed :)

The load bb_tools subcommand lack the
"Usage section when too few arguments are provided"

bb_tools bb_load
bb_tools::bb_load: <2> argument missing
default: should never be reached?
bb_load::load a file into the BB

whereas (for example with bb_find)

bb_tools bb_find
bb_tools::bb_find: <1> argument missing
Usage : bb_find <bbname> <symbolpattern>
bb_find::find symbol in blackboard

As you see not really a big deal.

More "valuable" remark to come after more testing :))

--
Erk