/****************************************************************************
- * RRDtool 1.2.23 Copyright by Tobi Oetiker, 1997-2007
+ * RRDtool 1.2.99907080300 Copyright by Tobi Oetiker, 1997-2007
****************************************************************************
* rrd__graph.c produce graphs from data in rrdfiles
****************************************************************************/
image_desc_t *im)
{
unsigned long i, ii;
- cairo_status_t status;
+ cairo_status_t status = 0;
if (im == NULL)
return 0;
if (im->font_options)
cairo_font_options_destroy(im->font_options);
- status = cairo_status(im->cr);
-
- if (im->cr)
+ if (im->cr) {
+ status = cairo_status(im->cr);
cairo_destroy(im->cr);
+ }
if (im->surface)
cairo_surface_destroy(im->surface);
if (status)
return 0;
}
+static int AlmostEqual2sComplement(
+ float A,
+ float B,
+ int maxUlps)
+{
+
+ int aInt = *(int *) &A;
+ int bInt = *(int *) &B;
+ int intDiff;
+
+ /* Make sure maxUlps is non-negative and small enough that the
+ default NAN won't compare as equal to anything. */
+
+ /* assert(maxUlps > 0 && maxUlps < 4 * 1024 * 1024); */
+
+ /* Make aInt lexicographically ordered as a twos-complement int */
+
+ if (aInt < 0)
+ aInt = 0x80000000l - aInt;
+
+ /* Make bInt lexicographically ordered as a twos-complement int */
+
+ if (bInt < 0)
+ bInt = 0x80000000l - bInt;
+
+ intDiff = abs(aInt - bInt);
+
+ if (intDiff <= maxUlps)
+ return 1;
+
+ return 0;
+}
+
/* massage data so, that we get one value for each x coordinate in the graph */
int data_proc(
image_desc_t *im)
}
/* adjust min and max values */
+ /* for logscale we add something on top */
if (isnan(im->minval)
- /* don't adjust low-end with log scale *//* why not? */
|| ((!im->rigid) && im->minval > minval)
) {
if (im->logarithmic)
else
im->maxval = maxval;
}
+
/* make sure min is smaller than max */
if (im->minval > im->maxval) {
- im->minval = 0.99 * im->maxval;
+ if (im->minval > 0)
+ im->minval = 0.99 * im->maxval;
+ else
+ im->minval = 1.01 * im->maxval;
}
/* make sure min and max are not equal */
- if (im->minval == im->maxval) {
- im->maxval *= 1.01;
- if (!im->logarithmic) {
- im->minval *= 0.99;
- }
+ if (AlmostEqual2sComplement(im->minval, im->maxval, 4)) {
+ if (im->maxval > 0)
+ im->maxval *= 1.01;
+ else
+ im->maxval *= 0.99;
+
/* make sure min and max are not both zero */
- if (im->maxval == 0.0) {
+ if (AlmostEqual2sComplement(im->maxval, 0, 4)) {
im->maxval = 1.0;
}
}
/* yes we are loosing precision by doing tos with floats instead of doubles
but it seems more stable this way. */
-static int AlmostEqual2sComplement(
- float A,
- float B,
- int maxUlps)
-{
-
- int aInt = *(int *) &A;
- int bInt = *(int *) &B;
- int intDiff;
-
- /* Make sure maxUlps is non-negative and small enough that the
- default NAN won't compare as equal to anything. */
-
- /* assert(maxUlps > 0 && maxUlps < 4 * 1024 * 1024); */
-
- /* Make aInt lexicographically ordered as a twos-complement int */
-
- if (aInt < 0)
- aInt = 0x80000000l - aInt;
-
- /* Make bInt lexicographically ordered as a twos-complement int */
-
- if (bInt < 0)
- bInt = 0x80000000l - bInt;
-
- intDiff = abs(aInt - bInt);
-
- if (intDiff <= maxUlps)
- return 1;
-
- return 0;
-}
/* logaritmic horizontal grid */
int horizontal_log_grid(
long long_tmp;
struct rrd_time_value start_tv, end_tv;
long unsigned int color;
+ char *old_locale = "";
+
+ /* defines for long options without a short equivalent. should be bytes,
+ and may not collide with (the ASCII value of) short options */
+#define LONGOPT_UNITS_SI 255
+ struct option long_options[] = {
+ {"start", required_argument, 0, 's'},
+ {"end", required_argument, 0, 'e'},
+ {"x-grid", required_argument, 0, 'x'},
+ {"y-grid", required_argument, 0, 'y'},
+ {"vertical-label", required_argument, 0, 'v'},
+ {"width", required_argument, 0, 'w'},
+ {"height", required_argument, 0, 'h'},
+ {"full-size-mode", no_argument, 0, 'D'},
+ {"interlaced", no_argument, 0, 'i'},
+ {"upper-limit", required_argument, 0, 'u'},
+ {"lower-limit", required_argument, 0, 'l'},
+ {"rigid", no_argument, 0, 'r'},
+ {"base", required_argument, 0, 'b'},
+ {"logarithmic", no_argument, 0, 'o'},
+ {"color", required_argument, 0, 'c'},
+ {"font", required_argument, 0, 'n'},
+ {"title", required_argument, 0, 't'},
+ {"imginfo", required_argument, 0, 'f'},
+ {"imgformat", required_argument, 0, 'a'},
+ {"lazy", no_argument, 0, 'z'},
+ {"zoom", required_argument, 0, 'm'},
+ {"no-legend", no_argument, 0, 'g'},
+ {"force-rules-legend", no_argument, 0, 'F'},
+ {"only-graph", no_argument, 0, 'j'},
+ {"alt-y-grid", no_argument, 0, 'Y'},
+ {"no-minor", no_argument, 0, 'I'},
+ {"slope-mode", no_argument, 0, 'E'},
+ {"alt-autoscale", no_argument, 0, 'A'},
+ {"alt-autoscale-min", no_argument, 0, 'J'},
+ {"alt-autoscale-max", no_argument, 0, 'M'},
+ {"no-gridfit", no_argument, 0, 'N'},
+ {"units-exponent", required_argument, 0, 'X'},
+ {"units-length", required_argument, 0, 'L'},
+ {"units", required_argument, 0, LONGOPT_UNITS_SI},
+ {"step", required_argument, 0, 'S'},
+ {"tabwidth", required_argument, 0, 'T'},
+ {"font-render-mode", required_argument, 0, 'R'},
+ {"graph-render-mode", required_argument, 0, 'G'},
+ {"font-smoothing-threshold", required_argument, 0, 'B'},
+ {"watermark", required_argument, 0, 'W'},
+ {"alt-y-mrtg", no_argument, 0, 1000}, /* this has no effect it is just here to save old apps from crashing when they use it */
+ {0, 0, 0, 0}
+ };
optind = 0;
opterr = 0; /* initialize getopt */
parsetime("end-24h", &start_tv);
parsetime("now", &end_tv);
- /* defines for long options without a short equivalent. should be bytes,
- and may not collide with (the ASCII value of) short options */
-#define LONGOPT_UNITS_SI 255
-
while (1) {
- static struct option long_options[] = {
- {"start", required_argument, 0, 's'},
- {"end", required_argument, 0, 'e'},
- {"x-grid", required_argument, 0, 'x'},
- {"y-grid", required_argument, 0, 'y'},
- {"vertical-label", required_argument, 0, 'v'},
- {"width", required_argument, 0, 'w'},
- {"height", required_argument, 0, 'h'},
- {"full-size-mode", no_argument, 0, 'D'},
- {"interlaced", no_argument, 0, 'i'},
- {"upper-limit", required_argument, 0, 'u'},
- {"lower-limit", required_argument, 0, 'l'},
- {"rigid", no_argument, 0, 'r'},
- {"base", required_argument, 0, 'b'},
- {"logarithmic", no_argument, 0, 'o'},
- {"color", required_argument, 0, 'c'},
- {"font", required_argument, 0, 'n'},
- {"title", required_argument, 0, 't'},
- {"imginfo", required_argument, 0, 'f'},
- {"imgformat", required_argument, 0, 'a'},
- {"lazy", no_argument, 0, 'z'},
- {"zoom", required_argument, 0, 'm'},
- {"no-legend", no_argument, 0, 'g'},
- {"force-rules-legend", no_argument, 0, 'F'},
- {"only-graph", no_argument, 0, 'j'},
- {"alt-y-grid", no_argument, 0, 'Y'},
- {"no-minor", no_argument, 0, 'I'},
- {"slope-mode", no_argument, 0, 'E'},
- {"alt-autoscale", no_argument, 0, 'A'},
- {"alt-autoscale-min", no_argument, 0, 'J'},
- {"alt-autoscale-max", no_argument, 0, 'M'},
- {"no-gridfit", no_argument, 0, 'N'},
- {"units-exponent", required_argument, 0, 'X'},
- {"units-length", required_argument, 0, 'L'},
- {"units", required_argument, 0, LONGOPT_UNITS_SI},
- {"step", required_argument, 0, 'S'},
- {"tabwidth", required_argument, 0, 'T'},
- {"font-render-mode", required_argument, 0, 'R'},
- {"graph-render-mode", required_argument, 0, 'G'},
- {"font-smoothing-threshold", required_argument, 0, 'B'},
- {"watermark", required_argument, 0, 'W'},
- {"alt-y-mrtg", no_argument, 0, 1000}, /* this has no effect it is just here to save old apps from crashing when they use it */
- {0, 0, 0, 0}
- };
int option_index = 0;
int opt;
int col_start, col_end;
case LONGOPT_UNITS_SI:
if (im->extra_flags & FORCE_UNITS) {
rrd_set_error("--units can only be used once!");
+ setlocale(LC_NUMERIC, old_locale);
return;
}
if (strcmp(optarg, "si") == 0)
im->forceleftspace = 1;
break;
case 'T':
+ old_locale = setlocale(LC_NUMERIC, "C");
im->tabwidth = atof(optarg);
+ setlocale(LC_NUMERIC, old_locale);
break;
case 'S':
+ old_locale = setlocale(LC_NUMERIC, "C");
im->step = atoi(optarg);
+ setlocale(LC_NUMERIC, old_locale);
break;
case 'N':
im->gridfit = 0;
im->draw_y_grid = 0;
break;
};
-
+ old_locale = setlocale(LC_NUMERIC, "C");
if (sscanf(optarg, "%lf:%d", &im->ygridstep, &im->ylabfact) == 2) {
+ setlocale(LC_NUMERIC, old_locale);
if (im->ygridstep <= 0) {
rrd_set_error("grid step must be > 0");
return;
return;
}
} else {
+ setlocale(LC_NUMERIC, old_locale);
rrd_set_error("invalid y-grid format");
return;
}
im->ylegend[150] = '\0';
break;
case 'u':
+ old_locale = setlocale(LC_NUMERIC, "C");
im->maxval = atof(optarg);
+ setlocale(LC_NUMERIC, old_locale);
break;
case 'l':
+ old_locale = setlocale(LC_NUMERIC, "C");
im->minval = atof(optarg);
+ setlocale(LC_NUMERIC, old_locale);
break;
case 'b':
im->base = atol(optarg);
double size = 1;
char font[1024] = "";
+ old_locale = setlocale(LC_NUMERIC, "C");
if (sscanf(optarg, "%10[A-Z]:%lf:%1000s", prop, &size, font) >= 2) {
int sindex, propidx;
+ setlocale(LC_NUMERIC, old_locale);
if ((sindex = text_prop_conv(prop)) != -1) {
for (propidx = sindex; propidx < TEXT_PROP_LAST;
propidx++) {
return;
}
} else {
+ setlocale(LC_NUMERIC, old_locale);
rrd_set_error("invalid text property format");
return;
}
break;
}
case 'm':
+ old_locale = setlocale(LC_NUMERIC, "C");
im->zoom = atof(optarg);
+ setlocale(LC_NUMERIC, old_locale);
if (im->zoom <= 0.0) {
rrd_set_error("zoom factor must be > 0");
return;
int vdef_parse(
- gdes,
- str)
- struct graph_desc_t *gdes;
- const char *const str;
+ struct graph_desc_t *gdes,
+ const char *const str)
{
/* A VDEF currently is either "func" or "param,func"
* so the parsing is rather simple. Change if needed.
double param;
char func[30];
int n;
+ char *old_locale;
n = 0;
+ old_locale = setlocale(LC_NUMERIC, "C");
sscanf(str, "%le,%29[A-Z]%n", ¶m, func, &n);
+ setlocale(LC_NUMERIC, old_locale);
if (n == (int) strlen(str)) { /* matched */
;
} else {
gdes->vf.op = VDEF_MAXIMUM;
else if (!strcmp("AVERAGE", func))
gdes->vf.op = VDEF_AVERAGE;
+ else if (!strcmp("STDEV", func))
+ gdes->vf.op = VDEF_STDEV;
else if (!strcmp("MINIMUM", func))
gdes->vf.op = VDEF_MINIMUM;
else if (!strcmp("TOTAL", func))
break;
case VDEF_MAXIMUM:
case VDEF_AVERAGE:
+ case VDEF_STDEV:
case VDEF_MINIMUM:
case VDEF_TOTAL:
case VDEF_FIRST:
int vdef_calc(
- im,
- gdi)
- image_desc_t *im;
- int gdi;
+ image_desc_t *im,
+ int gdi)
{
graph_desc_t *src, *dst;
rrd_value_t *data;
}
break;
case VDEF_TOTAL:
+ case VDEF_STDEV:
case VDEF_AVERAGE:{
int cnt = 0;
double sum = 0.0;
+ double average = 0.0;
for (step = 0; step < steps; step++) {
if (finite(data[step * src->ds_cnt])) {
if (dst->vf.op == VDEF_TOTAL) {
dst->vf.val = sum * src->step;
dst->vf.when = 0; /* no time component */
- } else {
+ } else if (dst->vf.op == VDEF_AVERAGE) {
dst->vf.val = sum / cnt;
dst->vf.when = 0; /* no time component */
+ } else {
+ average = sum / cnt;
+ sum = 0.0;
+ for (step = 0; step < steps; step++) {
+ if (finite(data[step * src->ds_cnt])) {
+ sum += pow((data[step * src->ds_cnt] - average), 2.0);
+ };
+ }
+ dst->vf.val = pow(sum / cnt, 0.5);
+ dst->vf.when = 0; /* no time component */
};
} else {
dst->vf.val = DNAN;
/* NaN < -INF < finite_values < INF */
int vdef_percent_compar(
- a,
- b)
- const void *a, *b;
+ const void *a,
+ const void *b)
{
/* Equality is not returned; this doesn't hurt except
* (maybe) for a little performance.
projects / rrdtool.git / blobdiff