[Plplot-general] hard disk filling up

[Jay C. <jea...@is...>]

hello again!
to answer my previous question:
My 50 channel oscilloscope application is feasible with plplot as graph 
library. It is really fast. I use the polygon fill function to erase previous 
plotted data.

but another problem:
If I let the program run a long time my hard disk fills up. It took some time 
to find out what file would get so huge, because the file doesn't show up in 
the filesystem, because it is already deleted. (funny phenomenon). 
#lsof -c scope
COMMAND   PID USER   FD   TYPE     DEVICE       SIZE    NODE NAME
(...)
scope   32031 root    6u   REG        8,3 1415630848   19684 /tmp/tmpfXiOQuk 
(deleted)

I suspect that pouring that many data so fast into the X-server or the plplot 
device perhaps causes it to build up a queue which grows ever bigger. But 
however my application runs normally and everything I want it to draw gets 
drawn even after the disk is saturated.

So where does the tempfile come from, why is it deleted (it immediately goes 
away when the program exits) and what exactly is its purpose? How could I 
correct this? 

Thanks in advance for any help.