[rrd-users] RRDtool Pipe Transaction Delimiter

[Tobias Oetiker]

Hi Larry,

Today Larry Adams wrote:

> All,
>
> I am writing a function in PHP that opens a bi-directional process to
> rrdtool using the syntax:
>
> rrdtool -
>
> As everyone is pretty much aware, this open a pipe that can receive
> commands from standard in and echo back on standard out.
>
> However, I wanted to confirm what character steam should be used to
> confirm that an entire package has been received from the rrdtool pipe.
> At the moment, I am using either of the following two substring matches:
>
> "OK"
> "ERROR"
>
> Is this sufficient?  Are there any other substring matches that tell me
> that the command has completed?

almost, but have a look at the graphv command since it can return
an inline graph, there  you have to just read the number of
characters advised before the graph is being dumped ...

cheers
tobi

> Thanks in Advance,
>
> Larry Adams
> TheWitness @
> www.cacti.net
>
> _______________________________________________
> rrd-users mailing list
> rrd-users at lists.oetiker.ch
> https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
>
>

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900