[rrd-developers] VDEF vs CDEF
it02_dab at it.kth.se
Mon Mar 13 11:15:35 MET 2006
As I wrote before, though now I'm more clear on what I'm doing, I'm trying
to make a C++ wrapper on an improved C API.
However, I'm confused with VDEFs. What is the difference between a CDEF
and a VDEF? When do I use a CDEF instead of a VDEF?
In some places it says that a VDEF has no relation with DS:s (datasources)
on the other hand in the rrd_graph.c it seems to be used in a number of
places of its functions (eg in the switch, case VDEF_MAXIMUM (row3558),
case VDEF_MINIMUM (row 3602) etc.) Does it or does it not have any
relation with DS:s?
I would be very grateful if someone could clarify this for me.
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