[collectd] lua plugin

Florian Forster octo at collectd.org
Sun Nov 28 17:38:46 CET 2010

Hi again ;)

On Sun, Nov 28, 2010 at 04:30:10PM +0100, Schmurfy wrote:
> … callbacks …
> do you really think the added complexity of the C code is really worth
> what it brings to the lua side ?

Just to make sure I understand your approach correctly: After the script
is loaded, check if there is a global function called, for example,
"cb_read". If there is, call it every $interval seconds. The script does
not call any register_* function for this to happen – defining the
function with this special name is sufficient.

I think providing the register_* functions is worth the trouble: It is
closer to the C API and the interfaces provided by the Perl and Python
plugins. The Java API is a bit special because Java doesn't provide
function pointers, but you can still register objects implementing a
special interface.

> I am more than disappointed by the way you took over my plugin

Oh, sorry about that :/ I didn't mean to "steal" your plugin, I just got
excited and carried away. When I get excited about something I usually
start hacking away in a frenzy, sorry … I'll hold myself back.

> I am not angry at you (and I hope you won't be at me for being so direct)

No offense taken.

> I finally managed to compile a working lua plugin on my system the
> only problem I had is that the pkg-config package is called "lua" for
> me with 5.1 as its version

Oh $deity! The pkg-config names are the one thing that should be
constant over all platforms … Oh well, I'll see if I can work around

Best regards,
Florian octo Forster
Hacker in training
GnuPG: 0x0C705A15
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