experiment9.c

   1 #include <rrd.h>
   2
   3 int main() {
   4                 char **calcpr  = NULL;
   5                 int xsize, ysize;
   6                 double ymin, ymax;
   7                 FILE *fd = tmpfile();
   8                 char *r_graph[] = { "rrdgraph",
   9                //                       "/home/skinkie/development/htdocs/rrdtest.png",
  10                                       "-a",
  11                                        "PNG",
  12                                        "-w",
  13                                        "600",
  14                                        "-h",
  15                                        "200",
  16                                     "DEF:cputime=/mnt/netapp/users/klant1/gentoo/cpuTime.rrd:cpuTime:AVERAGE:step=30",
  17                                     "CDEF:cpuload=cputime,1000000000,/",
  18                                     "LINE:cpuload#EE0000:cpuLoad" };
  19
  20                 rrd_graph(10, r_graph, &calcpr, &xsize, &ysize, fd, &ymin, &ymax);
  21
  22                 fclose(fd);
  23 }