[rrd-users] [rrd-developers] [PATCH + RFC] Cleanup the symbols exported by librrd.

[Sebastian Harl]

Hi,

On Mon, Jun 09, 2008 at 02:41:45PM +0200, Tobias Oetiker wrote:
> in the light of the pending 1.3.0 release I will keep further
> changes apart from exposing the extra functions for the next
> release cycle.

I agree - what about the additional functions I suggested earlier today
though? They are implemented already and somewhat complete the low-level
interface.

> Today Bernhard Fischer wrote:
> > ----- 8< -----
> > # /opt/nagios_snmp/bin/rrd_reader
> > rrd_reader 0.7.5  20080527 13:23:22 +0200
> > Usage: rrd_reader
> > 	file.rrd	rrd file to read
> > 	DS		ds_def[].ds_nam, name of the DataSource
> > 	CF		rra[].cf, e.g. "LAST" or "AVERAGE"
> > 	-n<count>	number of data-points (default 1, i.e. most recent)
> > 	-w<val,percent>	Warning threshold
> > 	-c<val,percent>	Critical threshold
> > 	-z<arith>	[min|avg|max] applied to counter
> > 	-M<multiplier>	multiply value from rrd by this (default 1.0)
> > 	-o<string>	append string to output
> > 	[-le|-ge]	Warning/Critical if less or greater equal, respectively
[...]
> > The applet should basically do this instead:
> > 0) [APP] option handling
> > 1) call rrd_open()
> > 2) [APP] eventually inspect the header.
> > 3) [APP] setup desired start, end, step.
> > 4) call rrd_find_rra() or rrd_find_best_rra() /* or however it would be
> >    called */
> > 5) [APP] adjust start, end, step to legit values.
> > 6) call rrd_fetch_fn()
> > 7) [APP] rrd_close(); rrd_free()
> > 8) [APP] do something with the results and exit.

Sounds good to me. In addition, it might make sense to add the
additional features implemented in rrd_reader to rrd_fetch. What do you
think?

Cheers,
Sebastian

-- 
Sebastian "tokkee" Harl +++ GnuPG-ID: 0x8501C7FC +++ http://tokkee.org/

Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety.         -- Benjamin Franklin

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