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#include <stdlib.h>
#include <plugins/lib_plot/plot_data.h>
#define BUFFLEN 1024
static int fill(plot_trace_t *tr, plot_trdata_t *trdata, plot_which_t which, long from, long len)
{
double tmp[1024];
long n;
plot_pos_t pw;
if (plot_write_init(&pw, tr, trdata, PLOT_MAIN, 0, 0, tmp, sizeof(tmp)/sizeof(tmp[0])) != 0)
return -1;
for(n = 0; n < len; n++)
plot_write(&pw, n);
plot_flush(&pw);
return 0;
}
static void dump(plot_trace_t *tr, plot_trdata_t *td)
{
double bmain[BUFFLEN], bmin[BUFFLEN], bmax[BUFFLEN], dmain, dmin, dmax;
long n;
plot_pos_t pmain, pmin, pmax;
printf(" trace level %d of %ld pts\n", td->level, td->main.len);
if (td->level == 0) {
if (plot_read_init(&pmain, tr, td, PLOT_MAIN, 0, 0, bmain, sizeof(bmain)/sizeof(bmain[0])) != 0) {
printf(" <error>\n");
return;
}
while(plot_read(&pmain, &dmain) == 0)
printf(" %.2f\n", dmain);
}
else {
if (plot_read_init(&pmain, tr, td, PLOT_MAIN, 0, 0, bmain, sizeof(bmain)/sizeof(bmain[0])) != 0) {
printf(" <error main>\n");
return;
}
if (plot_read_init(&pmin, tr, td, PLOT_MIN, 0, 0, bmin, sizeof(bmin)/sizeof(bmin[0])) != 0) {
printf(" <error min>\n");
return;
}
if (plot_read_init(&pmax, tr, td, PLOT_MAX, 0, 0, bmax, sizeof(bmax)/sizeof(bmax[0])) != 0) {
printf(" <error max>\n");
return;
}
while((plot_read(&pmain, &dmain) == 0) && (plot_read(&pmin, &dmin) == 0) && (plot_read(&pmax, &dmax) == 0))
printf(" %.2f [%.2f %.2f]\n", dmain, dmin, dmax);
}
}
static void verify0(plot_trace_t *tr, plot_trdata_t *td)
{
double bmain[BUFFLEN], dmain;
long n;
plot_pos_t pmain;
if (plot_read_init(&pmain, tr, td, PLOT_MAIN, 0, 0, bmain, sizeof(bmain)/sizeof(bmain[0])) != 0)
abort();
n = 0;
while(plot_read(&pmain, &dmain) == 0) {
if (dmain != n)
abort();
n++;
}
}
#define LEN 29
int main()
{
plot_data_t *pt;
FILE *fc = fopen("cache", "w+");
plot_trace_t *tr;
plot_trdata_t *td;
pt = plot_data_alloc(1);
tr = &pt->trace[0];
plot_trace_init(tr, fc);
td = plot_trdata_alloc(tr, 0, LEN);
fill(tr, td, PLOT_MAIN, 0, LEN);
td = plot_trdata_get(tr, 0, 1);
dump(tr, td);
/* verify0(tr, td);*/
td = plot_trdata_get(tr, 1, 1);
dump(tr, td);
td = plot_trdata_get(tr, 2, 1);
dump(tr, td);
fclose(fc);
plot_data_free(pt);
return 0;
}
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