1 /****************************************************************************
2 * RRDtool 1.4.3 Copyright by Tobi Oetiker, 1997-2010
3 ****************************************************************************
4 * rrd__graph.c produce graphs from data in rrdfiles
5 ****************************************************************************/
20 #include "plbasename.h"
23 #if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
32 #ifdef HAVE_LANGINFO_H
36 #include "rrd_graph.h"
37 #include "rrd_client.h"
39 /* some constant definitions */
43 #ifndef RRD_DEFAULT_FONT
44 /* there is special code later to pick Cour.ttf when running on windows */
45 #define RRD_DEFAULT_FONT "DejaVu Sans Mono,Bitstream Vera Sans Mono,monospace,Courier"
48 text_prop_t text_prop[] = {
49 {8.0, RRD_DEFAULT_FONT,NULL}
51 {9.0, RRD_DEFAULT_FONT,NULL}
53 {7.0, RRD_DEFAULT_FONT,NULL}
55 {8.0, RRD_DEFAULT_FONT,NULL}
57 {8.0, RRD_DEFAULT_FONT,NULL} /* legend */
59 {5.5, RRD_DEFAULT_FONT,NULL} /* watermark */
62 char week_fmt[128] = "Week %V";
65 {0, 0, TMT_SECOND, 30, TMT_MINUTE, 5, TMT_MINUTE, 5, 0, "%H:%M"}
67 {2, 0, TMT_MINUTE, 1, TMT_MINUTE, 5, TMT_MINUTE, 5, 0, "%H:%M"}
69 {5, 0, TMT_MINUTE, 2, TMT_MINUTE, 10, TMT_MINUTE, 10, 0, "%H:%M"}
71 {10, 0, TMT_MINUTE, 5, TMT_MINUTE, 20, TMT_MINUTE, 20, 0, "%H:%M"}
73 {30, 0, TMT_MINUTE, 10, TMT_HOUR, 1, TMT_HOUR, 1, 0, "%H:%M"}
75 {60, 0, TMT_MINUTE, 30, TMT_HOUR, 2, TMT_HOUR, 2, 0, "%H:%M"}
77 {60, 24 * 3600, TMT_MINUTE, 30, TMT_HOUR, 2, TMT_HOUR, 6, 0, "%a %H:%M"}
79 {180, 0, TMT_HOUR, 1, TMT_HOUR, 6, TMT_HOUR, 6, 0, "%H:%M"}
81 {180, 24 * 3600, TMT_HOUR, 1, TMT_HOUR, 6, TMT_HOUR, 12, 0, "%a %H:%M"}
83 /*{300, 0, TMT_HOUR,3, TMT_HOUR,12, TMT_HOUR,12, 12*3600,"%a %p"}, this looks silly */
84 {600, 0, TMT_HOUR, 6, TMT_DAY, 1, TMT_DAY, 1, 24 * 3600, "%a"}
86 {1200, 0, TMT_HOUR, 6, TMT_DAY, 1, TMT_DAY, 1, 24 * 3600, "%d"}
88 {1800, 0, TMT_HOUR, 12, TMT_DAY, 1, TMT_DAY, 2, 24 * 3600, "%a %d"}
90 {2400, 0, TMT_HOUR, 12, TMT_DAY, 1, TMT_DAY, 2, 24 * 3600, "%a"}
92 {3600, 0, TMT_DAY, 1, TMT_WEEK, 1, TMT_WEEK, 1, 7 * 24 * 3600, week_fmt}
94 {3 * 3600, 0, TMT_WEEK, 1, TMT_MONTH, 1, TMT_WEEK, 2, 7 * 24 * 3600, week_fmt}
96 {6 * 3600, 0, TMT_MONTH, 1, TMT_MONTH, 1, TMT_MONTH, 1, 30 * 24 * 3600,
99 {48 * 3600, 0, TMT_MONTH, 1, TMT_MONTH, 3, TMT_MONTH, 3, 30 * 24 * 3600,
102 {315360, 0, TMT_MONTH, 3, TMT_YEAR, 1, TMT_YEAR, 1, 365 * 24 * 3600, "%Y"}
104 {10 * 24 * 3600, 0, TMT_YEAR, 1, TMT_YEAR, 1, TMT_YEAR, 1,
105 365 * 24 * 3600, "%y"}
107 {-1, 0, TMT_MONTH, 0, TMT_MONTH, 0, TMT_MONTH, 0, 0, ""}
110 /* sensible y label intervals ...*/
134 {20.0, {1, 5, 10, 20}
140 {100.0, {1, 2, 5, 10}
143 {200.0, {1, 5, 10, 20}
146 {500.0, {1, 2, 4, 10}
154 gfx_color_t graph_col[] = /* default colors */
156 {1.00, 1.00, 1.00, 1.00}, /* canvas */
157 {0.95, 0.95, 0.95, 1.00}, /* background */
158 {0.81, 0.81, 0.81, 1.00}, /* shade A */
159 {0.62, 0.62, 0.62, 1.00}, /* shade B */
160 {0.56, 0.56, 0.56, 0.75}, /* grid */
161 {0.87, 0.31, 0.31, 0.60}, /* major grid */
162 {0.00, 0.00, 0.00, 1.00}, /* font */
163 {0.50, 0.12, 0.12, 1.00}, /* arrow */
164 {0.12, 0.12, 0.12, 1.00}, /* axis */
165 {0.00, 0.00, 0.00, 1.00} /* frame */
172 # define DPRINT(x) (void)(printf x, printf("\n"))
178 /* initialize with xtr(im,0); */
186 pixie = (double) im->xsize / (double) (im->end - im->start);
189 return (int) ((double) im->xorigin + pixie * (mytime - im->start));
192 /* translate data values into y coordinates */
201 if (!im->logarithmic)
202 pixie = (double) im->ysize / (im->maxval - im->minval);
205 (double) im->ysize / (log10(im->maxval) - log10(im->minval));
207 } else if (!im->logarithmic) {
208 yval = im->yorigin - pixie * (value - im->minval);
210 if (value < im->minval) {
213 yval = im->yorigin - pixie * (log10(value) - log10(im->minval));
221 /* conversion function for symbolic entry names */
224 #define conv_if(VV,VVV) \
225 if (strcmp(#VV, string) == 0) return VVV ;
231 conv_if(PRINT, GF_PRINT);
232 conv_if(GPRINT, GF_GPRINT);
233 conv_if(COMMENT, GF_COMMENT);
234 conv_if(HRULE, GF_HRULE);
235 conv_if(VRULE, GF_VRULE);
236 conv_if(LINE, GF_LINE);
237 conv_if(AREA, GF_AREA);
238 conv_if(GRAD, GF_GRAD);
239 conv_if(STACK, GF_STACK);
240 conv_if(TICK, GF_TICK);
241 conv_if(TEXTALIGN, GF_TEXTALIGN);
242 conv_if(DEF, GF_DEF);
243 conv_if(CDEF, GF_CDEF);
244 conv_if(VDEF, GF_VDEF);
245 conv_if(XPORT, GF_XPORT);
246 conv_if(SHIFT, GF_SHIFT);
248 return (enum gf_en)(-1);
251 enum gfx_if_en if_conv(
255 conv_if(PNG, IF_PNG);
256 conv_if(SVG, IF_SVG);
257 conv_if(EPS, IF_EPS);
258 conv_if(PDF, IF_PDF);
259 conv_if(XML, IF_XML);
260 conv_if(XMLENUM, IF_XMLENUM);
261 conv_if(CSV, IF_CSV);
262 conv_if(TSV, IF_TSV);
263 conv_if(SSV, IF_SSV);
264 conv_if(JSON, IF_JSON);
265 conv_if(JSONTIME, IF_JSONTIME);
267 return (enum gfx_if_en)(-1);
270 enum gfx_type_en type_conv(
273 conv_if(TIME , GTYPE_TIME);
274 conv_if(XY, GTYPE_XY);
275 return (enum gfx_type_en)(-1);
278 enum tmt_en tmt_conv(
282 conv_if(SECOND, TMT_SECOND);
283 conv_if(MINUTE, TMT_MINUTE);
284 conv_if(HOUR, TMT_HOUR);
285 conv_if(DAY, TMT_DAY);
286 conv_if(WEEK, TMT_WEEK);
287 conv_if(MONTH, TMT_MONTH);
288 conv_if(YEAR, TMT_YEAR);
289 return (enum tmt_en)(-1);
292 enum grc_en grc_conv(
296 conv_if(BACK, GRC_BACK);
297 conv_if(CANVAS, GRC_CANVAS);
298 conv_if(SHADEA, GRC_SHADEA);
299 conv_if(SHADEB, GRC_SHADEB);
300 conv_if(GRID, GRC_GRID);
301 conv_if(MGRID, GRC_MGRID);
302 conv_if(FONT, GRC_FONT);
303 conv_if(ARROW, GRC_ARROW);
304 conv_if(AXIS, GRC_AXIS);
305 conv_if(FRAME, GRC_FRAME);
307 return (enum grc_en)(-1);
310 enum text_prop_en text_prop_conv(
314 conv_if(DEFAULT, TEXT_PROP_DEFAULT);
315 conv_if(TITLE, TEXT_PROP_TITLE);
316 conv_if(AXIS, TEXT_PROP_AXIS);
317 conv_if(UNIT, TEXT_PROP_UNIT);
318 conv_if(LEGEND, TEXT_PROP_LEGEND);
319 conv_if(WATERMARK, TEXT_PROP_WATERMARK);
320 return (enum text_prop_en)(-1);
330 cairo_status_t status = (cairo_status_t) 0;
335 if (im->daemon_addr != NULL)
336 free(im->daemon_addr);
338 for (i = 0; i < (unsigned) im->gdes_c; i++) {
339 if (im->gdes[i].data_first) {
340 /* careful here, because a single pointer can occur several times */
341 free(im->gdes[i].data);
342 if (im->gdes[i].ds_namv) {
343 for (ii = 0; ii < im->gdes[i].ds_cnt; ii++)
344 free(im->gdes[i].ds_namv[ii]);
345 free(im->gdes[i].ds_namv);
348 /* free allocated memory used for dashed lines */
349 if (im->gdes[i].p_dashes != NULL)
350 free(im->gdes[i].p_dashes);
352 free(im->gdes[i].p_data);
353 free(im->gdes[i].rpnp);
357 for (i = 0; i < DIM(text_prop);i++){
358 pango_font_description_free(im->text_prop[i].font_desc);
359 im->text_prop[i].font_desc = NULL;
362 if (im->font_options)
363 cairo_font_options_destroy(im->font_options);
366 status = cairo_status(im->cr);
367 cairo_destroy(im->cr);
371 if (im->rendered_image) {
372 free(im->rendered_image);
376 g_object_unref (im->layout);
380 cairo_surface_destroy(im->surface);
383 fprintf(stderr, "OOPS: Cairo has issues it can't even die: %s\n",
384 cairo_status_to_string(status));
389 /* find SI magnitude symbol for the given number*/
391 image_desc_t *im, /* image description */
397 char *symbol[] = { "a", /* 10e-18 Atto */
398 "f", /* 10e-15 Femto */
399 "p", /* 10e-12 Pico */
400 "n", /* 10e-9 Nano */
401 "u", /* 10e-6 Micro */
402 "m", /* 10e-3 Milli */
407 "T", /* 10e12 Tera */
408 "P", /* 10e15 Peta */
415 if (*value == 0.0 || isnan(*value)) {
419 sindex = floor(log(fabs(*value)) / log((double) im->base));
420 *magfact = pow((double) im->base, (double) sindex);
421 (*value) /= (*magfact);
423 if (sindex <= symbcenter && sindex >= -symbcenter) {
424 (*symb_ptr) = symbol[sindex + symbcenter];
432 static char si_symbol[] = {
433 'y', /* 10e-24 Yocto */
434 'z', /* 10e-21 Zepto */
435 'a', /* 10e-18 Atto */
436 'f', /* 10e-15 Femto */
437 'p', /* 10e-12 Pico */
438 'n', /* 10e-9 Nano */
439 'u', /* 10e-6 Micro */
440 'm', /* 10e-3 Milli */
445 'T', /* 10e12 Tera */
446 'P', /* 10e15 Peta */
448 'Z', /* 10e21 Zeta */
449 'Y' /* 10e24 Yotta */
451 static const int si_symbcenter = 8;
453 /* find SI magnitude symbol for the numbers on the y-axis*/
455 image_desc_t *im /* image description */
459 double digits, viewdigits = 0;
462 floor(log(max(fabs(im->minval), fabs(im->maxval))) /
463 log((double) im->base));
465 if (im->unitsexponent != 9999) {
466 /* unitsexponent = 9, 6, 3, 0, -3, -6, -9, etc */
467 viewdigits = floor((double)(im->unitsexponent / 3));
472 im->magfact = pow((double) im->base, digits);
475 printf("digits %6.3f im->magfact %6.3f\n", digits, im->magfact);
478 im->viewfactor = im->magfact / pow((double) im->base, viewdigits);
480 if (((viewdigits + si_symbcenter) < sizeof(si_symbol)) &&
481 ((viewdigits + si_symbcenter) >= 0))
482 im->symbol = si_symbol[(int) viewdigits + si_symbcenter];
487 /* move min and max values around to become sensible */
492 double sensiblevalues[] = { 1000.0, 900.0, 800.0, 750.0, 700.0,
493 600.0, 500.0, 400.0, 300.0, 250.0,
494 200.0, 125.0, 100.0, 90.0, 80.0,
495 75.0, 70.0, 60.0, 50.0, 40.0, 30.0,
496 25.0, 20.0, 10.0, 9.0, 8.0,
497 7.0, 6.0, 5.0, 4.0, 3.5, 3.0,
498 2.5, 2.0, 1.8, 1.5, 1.2, 1.0,
499 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.0, -1
502 double scaled_min, scaled_max;
509 printf("Min: %6.2f Max: %6.2f MagFactor: %6.2f\n",
510 im->minval, im->maxval, im->magfact);
513 if (isnan(im->ygridstep)) {
514 if (im->extra_flags & ALTAUTOSCALE) {
515 /* measure the amplitude of the function. Make sure that
516 graph boundaries are slightly higher then max/min vals
517 so we can see amplitude on the graph */
520 delt = im->maxval - im->minval;
522 fact = 2.0 * pow(10.0,
524 (max(fabs(im->minval), fabs(im->maxval)) /
527 adj = (fact - delt) * 0.55;
530 ("Min: %6.2f Max: %6.2f delt: %6.2f fact: %6.2f adj: %6.2f\n",
531 im->minval, im->maxval, delt, fact, adj);
536 } else if (im->extra_flags & ALTAUTOSCALE_MIN) {
537 /* measure the amplitude of the function. Make sure that
538 graph boundaries are slightly lower than min vals
539 so we can see amplitude on the graph */
540 adj = (im->maxval - im->minval) * 0.1;
542 } else if (im->extra_flags & ALTAUTOSCALE_MAX) {
543 /* measure the amplitude of the function. Make sure that
544 graph boundaries are slightly higher than max vals
545 so we can see amplitude on the graph */
546 adj = (im->maxval - im->minval) * 0.1;
549 scaled_min = im->minval / im->magfact;
550 scaled_max = im->maxval / im->magfact;
552 for (i = 1; sensiblevalues[i] > 0; i++) {
553 if (sensiblevalues[i - 1] >= scaled_min &&
554 sensiblevalues[i] <= scaled_min)
555 im->minval = sensiblevalues[i] * (im->magfact);
557 if (-sensiblevalues[i - 1] <= scaled_min &&
558 -sensiblevalues[i] >= scaled_min)
559 im->minval = -sensiblevalues[i - 1] * (im->magfact);
561 if (sensiblevalues[i - 1] >= scaled_max &&
562 sensiblevalues[i] <= scaled_max)
563 im->maxval = sensiblevalues[i - 1] * (im->magfact);
565 if (-sensiblevalues[i - 1] <= scaled_max &&
566 -sensiblevalues[i] >= scaled_max)
567 im->maxval = -sensiblevalues[i] * (im->magfact);
571 /* adjust min and max to the grid definition if there is one */
572 im->minval = (double) im->ylabfact * im->ygridstep *
573 floor(im->minval / ((double) im->ylabfact * im->ygridstep));
574 im->maxval = (double) im->ylabfact * im->ygridstep *
575 ceil(im->maxval / ((double) im->ylabfact * im->ygridstep));
579 fprintf(stderr, "SCALED Min: %6.2f Max: %6.2f Factor: %6.2f\n",
580 im->minval, im->maxval, im->magfact);
588 if (isnan(im->minval) || isnan(im->maxval))
591 if (im->logarithmic) {
592 double ya, yb, ypix, ypixfrac;
593 double log10_range = log10(im->maxval) - log10(im->minval);
595 ya = pow((double) 10, floor(log10(im->minval)));
596 while (ya < im->minval)
599 return; /* don't have y=10^x gridline */
601 if (yb <= im->maxval) {
602 /* we have at least 2 y=10^x gridlines.
603 Make sure distance between them in pixels
604 are an integer by expanding im->maxval */
605 double y_pixel_delta = ytr(im, ya) - ytr(im, yb);
606 double factor = y_pixel_delta / floor(y_pixel_delta);
607 double new_log10_range = factor * log10_range;
608 double new_ymax_log10 = log10(im->minval) + new_log10_range;
610 im->maxval = pow(10, new_ymax_log10);
611 ytr(im, DNAN); /* reset precalc */
612 log10_range = log10(im->maxval) - log10(im->minval);
614 /* make sure first y=10^x gridline is located on
615 integer pixel position by moving scale slightly
616 downwards (sub-pixel movement) */
617 ypix = ytr(im, ya) + im->ysize; /* add im->ysize so it always is positive */
618 ypixfrac = ypix - floor(ypix);
619 if (ypixfrac > 0 && ypixfrac < 1) {
620 double yfrac = ypixfrac / im->ysize;
622 im->minval = pow(10, log10(im->minval) - yfrac * log10_range);
623 im->maxval = pow(10, log10(im->maxval) - yfrac * log10_range);
624 ytr(im, DNAN); /* reset precalc */
627 /* Make sure we have an integer pixel distance between
628 each minor gridline */
629 double ypos1 = ytr(im, im->minval);
630 double ypos2 = ytr(im, im->minval + im->ygrid_scale.gridstep);
631 double y_pixel_delta = ypos1 - ypos2;
632 double factor = y_pixel_delta / floor(y_pixel_delta);
633 double new_range = factor * (im->maxval - im->minval);
634 double gridstep = im->ygrid_scale.gridstep;
635 double minor_y, minor_y_px, minor_y_px_frac;
637 if (im->maxval > 0.0)
638 im->maxval = im->minval + new_range;
640 im->minval = im->maxval - new_range;
641 ytr(im, DNAN); /* reset precalc */
642 /* make sure first minor gridline is on integer pixel y coord */
643 minor_y = gridstep * floor(im->minval / gridstep);
644 while (minor_y < im->minval)
646 minor_y_px = ytr(im, minor_y) + im->ysize; /* ensure > 0 by adding ysize */
647 minor_y_px_frac = minor_y_px - floor(minor_y_px);
648 if (minor_y_px_frac > 0 && minor_y_px_frac < 1) {
649 double yfrac = minor_y_px_frac / im->ysize;
650 double range = im->maxval - im->minval;
652 im->minval = im->minval - yfrac * range;
653 im->maxval = im->maxval - yfrac * range;
654 ytr(im, DNAN); /* reset precalc */
656 calc_horizontal_grid(im); /* recalc with changed im->maxval */
660 /* reduce data reimplementation by Alex */
663 enum cf_en cf, /* which consolidation function ? */
664 unsigned long cur_step, /* step the data currently is in */
665 time_t *start, /* start, end and step as requested ... */
666 time_t *end, /* ... by the application will be ... */
667 unsigned long *step, /* ... adjusted to represent reality */
668 unsigned long *ds_cnt, /* number of data sources in file */
670 { /* two dimensional array containing the data */
671 int i, reduce_factor = ceil((double) (*step) / (double) cur_step);
672 unsigned long col, dst_row, row_cnt, start_offset, end_offset, skiprows =
674 rrd_value_t *srcptr, *dstptr;
676 (*step) = cur_step * reduce_factor; /* set new step size for reduced data */
679 row_cnt = ((*end) - (*start)) / cur_step;
685 printf("Reducing %lu rows with factor %i time %lu to %lu, step %lu\n",
686 row_cnt, reduce_factor, *start, *end, cur_step);
687 for (col = 0; col < row_cnt; col++) {
688 printf("time %10lu: ", *start + (col + 1) * cur_step);
689 for (i = 0; i < *ds_cnt; i++)
690 printf(" %8.2e", srcptr[*ds_cnt * col + i]);
695 /* We have to combine [reduce_factor] rows of the source
696 ** into one row for the destination. Doing this we also
697 ** need to take care to combine the correct rows. First
698 ** alter the start and end time so that they are multiples
699 ** of the new step time. We cannot reduce the amount of
700 ** time so we have to move the end towards the future and
701 ** the start towards the past.
703 end_offset = (*end) % (*step);
704 start_offset = (*start) % (*step);
706 /* If there is a start offset (which cannot be more than
707 ** one destination row), skip the appropriate number of
708 ** source rows and one destination row. The appropriate
709 ** number is what we do know (start_offset/cur_step) of
710 ** the new interval (*step/cur_step aka reduce_factor).
713 printf("start_offset: %lu end_offset: %lu\n", start_offset, end_offset);
714 printf("row_cnt before: %lu\n", row_cnt);
717 (*start) = (*start) - start_offset;
718 skiprows = reduce_factor - start_offset / cur_step;
719 srcptr += skiprows * *ds_cnt;
720 for (col = 0; col < (*ds_cnt); col++)
725 printf("row_cnt between: %lu\n", row_cnt);
728 /* At the end we have some rows that are not going to be
729 ** used, the amount is end_offset/cur_step
732 (*end) = (*end) - end_offset + (*step);
733 skiprows = end_offset / cur_step;
737 printf("row_cnt after: %lu\n", row_cnt);
740 /* Sanity check: row_cnt should be multiple of reduce_factor */
741 /* if this gets triggered, something is REALLY WRONG ... we die immediately */
743 if (row_cnt % reduce_factor) {
744 printf("SANITY CHECK: %lu rows cannot be reduced by %i \n",
745 row_cnt, reduce_factor);
746 printf("BUG in reduce_data()\n");
750 /* Now combine reduce_factor intervals at a time
751 ** into one interval for the destination.
754 for (dst_row = 0; (long int) row_cnt >= reduce_factor; dst_row++) {
755 for (col = 0; col < (*ds_cnt); col++) {
756 rrd_value_t newval = DNAN;
757 unsigned long validval = 0;
759 for (i = 0; i < reduce_factor; i++) {
760 if (isnan(srcptr[i * (*ds_cnt) + col])) {
765 newval = srcptr[i * (*ds_cnt) + col];
774 newval += srcptr[i * (*ds_cnt) + col];
777 newval = min(newval, srcptr[i * (*ds_cnt) + col]);
780 /* an interval contains a failure if any subintervals contained a failure */
782 newval = max(newval, srcptr[i * (*ds_cnt) + col]);
785 newval = srcptr[i * (*ds_cnt) + col];
811 srcptr += (*ds_cnt) * reduce_factor;
812 row_cnt -= reduce_factor;
814 /* If we had to alter the endtime, we didn't have enough
815 ** source rows to fill the last row. Fill it with NaN.
818 for (col = 0; col < (*ds_cnt); col++)
821 row_cnt = ((*end) - (*start)) / *step;
823 printf("Done reducing. Currently %lu rows, time %lu to %lu, step %lu\n",
824 row_cnt, *start, *end, *step);
825 for (col = 0; col < row_cnt; col++) {
826 printf("time %10lu: ", *start + (col + 1) * (*step));
827 for (i = 0; i < *ds_cnt; i++)
828 printf(" %8.2e", srcptr[*ds_cnt * col + i]);
835 /* get the data required for the graphs from the
844 /* pull the data from the rrd files ... */
845 for (i = 0; i < (int) im->gdes_c; i++) {
846 /* only GF_DEF elements fetch data */
847 if (im->gdes[i].gf != GF_DEF)
851 /* do we have it already ? */
852 for (ii = 0; ii < i; ii++) {
853 if (im->gdes[ii].gf != GF_DEF)
855 if ((strcmp(im->gdes[i].rrd, im->gdes[ii].rrd) == 0)
856 && (im->gdes[i].cf == im->gdes[ii].cf)
857 && (im->gdes[i].cf_reduce == im->gdes[ii].cf_reduce)
858 && (im->gdes[i].start_orig == im->gdes[ii].start_orig)
859 && (im->gdes[i].end_orig == im->gdes[ii].end_orig)
860 && (im->gdes[i].step_orig == im->gdes[ii].step_orig)) {
861 /* OK, the data is already there.
862 ** Just copy the header portion
864 im->gdes[i].start = im->gdes[ii].start;
865 im->gdes[i].end = im->gdes[ii].end;
866 im->gdes[i].step = im->gdes[ii].step;
867 im->gdes[i].ds_cnt = im->gdes[ii].ds_cnt;
868 im->gdes[i].ds_namv = im->gdes[ii].ds_namv;
869 im->gdes[i].data = im->gdes[ii].data;
870 im->gdes[i].data_first = 0;
877 unsigned long ft_step = im->gdes[i].step; /* ft_step will record what we got from fetch */
878 const char *rrd_daemon;
881 if (im->gdes[i].daemon[0] != 0)
882 rrd_daemon = im->gdes[i].daemon;
884 rrd_daemon = im->daemon_addr;
886 /* "daemon" may be NULL. ENV_RRDCACHED_ADDRESS is evaluated in that
887 * case. If "daemon" holds the same value as in the previous
888 * iteration, no actual new connection is established - the
889 * existing connection is re-used. */
890 rrdc_connect (rrd_daemon);
892 /* If connecting was successfull, use the daemon to query the data.
893 * If there is no connection, for example because no daemon address
894 * was specified, (try to) use the local file directly. */
895 if (rrdc_is_connected (rrd_daemon))
897 status = rrdc_fetch (im->gdes[i].rrd,
898 cf_to_string (im->gdes[i].cf),
903 &im->gdes[i].ds_namv,
910 if ((rrd_fetch_fn(im->gdes[i].rrd,
916 &im->gdes[i].ds_namv,
917 &im->gdes[i].data)) == -1) {
921 im->gdes[i].data_first = 1;
923 /* must reduce to at least im->step
924 otherwhise we end up with more data than we can handle in the
925 chart and visibility of data will be random */
926 im->gdes[i].step = max(im->gdes[i].step,im->step);
927 if (ft_step < im->gdes[i].step) {
928 reduce_data(im->gdes[i].cf_reduce,
933 &im->gdes[i].ds_cnt, &im->gdes[i].data);
935 im->gdes[i].step = ft_step;
939 /* lets see if the required data source is really there */
940 for (ii = 0; ii < (int) im->gdes[i].ds_cnt; ii++) {
941 if (strcmp(im->gdes[i].ds_namv[ii], im->gdes[i].ds_nam) == 0) {
945 if (im->gdes[i].ds == -1) {
946 rrd_set_error("No DS called '%s' in '%s'",
947 im->gdes[i].ds_nam, im->gdes[i].rrd);
955 /* evaluate the expressions in the CDEF functions */
957 /*************************************************************
959 *************************************************************/
961 long find_var_wrapper(
965 return find_var((image_desc_t *) arg1, key);
968 /* find gdes containing var*/
975 for (ii = 0; ii < im->gdes_c - 1; ii++) {
976 if ((im->gdes[ii].gf == GF_DEF
977 || im->gdes[ii].gf == GF_VDEF || im->gdes[ii].gf == GF_CDEF)
978 && (strcmp(im->gdes[ii].vname, key) == 0)) {
985 /* find the greatest common divisor for all the numbers
986 in the 0 terminated num array */
993 for (i = 0; num[i + 1] != 0; i++) {
995 rest = num[i] % num[i + 1];
1001 /* return i==0?num[i]:num[i-1]; */
1005 /* run the rpn calculator on all the VDEF and CDEF arguments */
1012 long *steparray, rpi;
1015 rpnstack_t rpnstack;
1017 rpnstack_init(&rpnstack);
1019 for (gdi = 0; gdi < im->gdes_c; gdi++) {
1020 /* Look for GF_VDEF and GF_CDEF in the same loop,
1021 * so CDEFs can use VDEFs and vice versa
1023 switch (im->gdes[gdi].gf) {
1027 graph_desc_t *vdp = &im->gdes[im->gdes[gdi].vidx];
1029 /* remove current shift */
1030 vdp->start -= vdp->shift;
1031 vdp->end -= vdp->shift;
1034 if (im->gdes[gdi].shidx >= 0)
1035 vdp->shift = im->gdes[im->gdes[gdi].shidx].vf.val;
1038 vdp->shift = im->gdes[gdi].shval;
1040 /* normalize shift to multiple of consolidated step */
1041 vdp->shift = (vdp->shift / (long) vdp->step) * (long) vdp->step;
1044 vdp->start += vdp->shift;
1045 vdp->end += vdp->shift;
1049 /* A VDEF has no DS. This also signals other parts
1050 * of rrdtool that this is a VDEF value, not a CDEF.
1052 im->gdes[gdi].ds_cnt = 0;
1053 if (vdef_calc(im, gdi)) {
1054 rrd_set_error("Error processing VDEF '%s'",
1055 im->gdes[gdi].vname);
1056 rpnstack_free(&rpnstack);
1061 im->gdes[gdi].ds_cnt = 1;
1062 im->gdes[gdi].ds = 0;
1063 im->gdes[gdi].data_first = 1;
1064 im->gdes[gdi].start = 0;
1065 im->gdes[gdi].end = 0;
1070 /* Find the variables in the expression.
1071 * - VDEF variables are substituted by their values
1072 * and the opcode is changed into OP_NUMBER.
1073 * - CDEF variables are analized for their step size,
1074 * the lowest common denominator of all the step
1075 * sizes of the data sources involved is calculated
1076 * and the resulting number is the step size for the
1077 * resulting data source.
1079 for (rpi = 0; im->gdes[gdi].rpnp[rpi].op != OP_END; rpi++) {
1080 if (im->gdes[gdi].rpnp[rpi].op == OP_VARIABLE ||
1081 im->gdes[gdi].rpnp[rpi].op == OP_PREV_OTHER) {
1082 long ptr = im->gdes[gdi].rpnp[rpi].ptr;
1084 if (im->gdes[ptr].ds_cnt == 0) { /* this is a VDEF data source */
1087 ("DEBUG: inside CDEF '%s' processing VDEF '%s'\n",
1088 im->gdes[gdi].vname, im->gdes[ptr].vname);
1089 printf("DEBUG: value from vdef is %f\n",
1090 im->gdes[ptr].vf.val);
1092 im->gdes[gdi].rpnp[rpi].val = im->gdes[ptr].vf.val;
1093 im->gdes[gdi].rpnp[rpi].op = OP_NUMBER;
1094 } else { /* normal variables and PREF(variables) */
1096 /* add one entry to the array that keeps track of the step sizes of the
1097 * data sources going into the CDEF. */
1099 (long*)rrd_realloc(steparray,
1101 1) * sizeof(*steparray))) == NULL) {
1102 rrd_set_error("realloc steparray");
1103 rpnstack_free(&rpnstack);
1107 steparray[stepcnt - 1] = im->gdes[ptr].step;
1109 /* adjust start and end of cdef (gdi) so
1110 * that it runs from the latest start point
1111 * to the earliest endpoint of any of the
1112 * rras involved (ptr)
1115 if (im->gdes[gdi].start < im->gdes[ptr].start)
1116 im->gdes[gdi].start = im->gdes[ptr].start;
1118 if (im->gdes[gdi].end == 0 ||
1119 im->gdes[gdi].end > im->gdes[ptr].end)
1120 im->gdes[gdi].end = im->gdes[ptr].end;
1122 /* store pointer to the first element of
1123 * the rra providing data for variable,
1124 * further save step size and data source
1127 im->gdes[gdi].rpnp[rpi].data =
1128 im->gdes[ptr].data + im->gdes[ptr].ds;
1129 im->gdes[gdi].rpnp[rpi].step = im->gdes[ptr].step;
1130 im->gdes[gdi].rpnp[rpi].ds_cnt = im->gdes[ptr].ds_cnt;
1132 /* backoff the *.data ptr; this is done so
1133 * rpncalc() function doesn't have to treat
1134 * the first case differently
1136 } /* if ds_cnt != 0 */
1137 } /* if OP_VARIABLE */
1138 } /* loop through all rpi */
1140 /* move the data pointers to the correct period */
1141 for (rpi = 0; im->gdes[gdi].rpnp[rpi].op != OP_END; rpi++) {
1142 if (im->gdes[gdi].rpnp[rpi].op == OP_VARIABLE ||
1143 im->gdes[gdi].rpnp[rpi].op == OP_PREV_OTHER) {
1144 long ptr = im->gdes[gdi].rpnp[rpi].ptr;
1146 im->gdes[gdi].start - im->gdes[ptr].start;
1149 im->gdes[gdi].rpnp[rpi].data +=
1150 (diff / im->gdes[ptr].step) *
1151 im->gdes[ptr].ds_cnt;
1155 if (steparray == NULL) {
1156 rrd_set_error("rpn expressions without DEF"
1157 " or CDEF variables are not supported");
1158 rpnstack_free(&rpnstack);
1161 steparray[stepcnt] = 0;
1162 /* Now find the resulting step. All steps in all
1163 * used RRAs have to be visited
1165 im->gdes[gdi].step = lcd(steparray);
1167 if ((im->gdes[gdi].data = (rrd_value_t*)malloc(((im->gdes[gdi].end -
1168 im->gdes[gdi].start)
1169 / im->gdes[gdi].step)
1170 * sizeof(double))) == NULL) {
1171 rrd_set_error("malloc im->gdes[gdi].data");
1172 rpnstack_free(&rpnstack);
1176 /* Step through the new cdef results array and
1177 * calculate the values
1179 for (now = im->gdes[gdi].start + im->gdes[gdi].step;
1180 now <= im->gdes[gdi].end; now += im->gdes[gdi].step) {
1181 rpnp_t *rpnp = im->gdes[gdi].rpnp;
1183 /* 3rd arg of rpn_calc is for OP_VARIABLE lookups;
1184 * in this case we are advancing by timesteps;
1185 * we use the fact that time_t is a synonym for long
1187 if (rpn_calc(rpnp, &rpnstack, (long) now,
1188 im->gdes[gdi].data, ++dataidx) == -1) {
1189 /* rpn_calc sets the error string */
1190 rpnstack_free(&rpnstack);
1193 } /* enumerate over time steps within a CDEF */
1198 } /* enumerate over CDEFs */
1199 rpnstack_free(&rpnstack);
1203 /* from http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm */
1204 /* yes we are loosing precision by doing tos with floats instead of doubles
1205 but it seems more stable this way. */
1207 static int AlmostEqual2sComplement(
1213 int aInt = *(int *) &A;
1214 int bInt = *(int *) &B;
1217 /* Make sure maxUlps is non-negative and small enough that the
1218 default NAN won't compare as equal to anything. */
1220 /* assert(maxUlps > 0 && maxUlps < 4 * 1024 * 1024); */
1222 /* Make aInt lexicographically ordered as a twos-complement int */
1225 aInt = 0x80000000l - aInt;
1227 /* Make bInt lexicographically ordered as a twos-complement int */
1230 bInt = 0x80000000l - bInt;
1232 intDiff = abs(aInt - bInt);
1234 if (intDiff <= maxUlps)
1240 /* massage data so, that we get one value for each x coordinate in the graph */
1245 double pixstep = (double) (im->end - im->start)
1246 / (double) im->xsize; /* how much time
1247 passes in one pixel */
1249 double minval = DNAN, maxval = DNAN;
1251 unsigned long gr_time;
1253 /* memory for the processed data */
1254 for (i = 0; i < im->gdes_c; i++) {
1255 if ((im->gdes[i].gf == GF_LINE)
1256 || (im->gdes[i].gf == GF_AREA)
1257 || (im->gdes[i].gf == GF_TICK)
1258 || (im->gdes[i].gf == GF_GRAD)
1260 if ((im->gdes[i].p_data = (rrd_value_t*)malloc((im->xsize + 1)
1261 * sizeof(rrd_value_t))) == NULL) {
1262 rrd_set_error("malloc data_proc");
1268 for (i = 0; i < im->xsize; i++) { /* for each pixel */
1271 gr_time = im->start + pixstep * i; /* time of the current step */
1274 for (ii = 0; ii < im->gdes_c; ii++) {
1277 switch (im->gdes[ii].gf) {
1282 if (!im->gdes[ii].stack)
1284 value = im->gdes[ii].yrule;
1285 if (isnan(value) || (im->gdes[ii].gf == GF_TICK)) {
1286 /* The time of the data doesn't necessarily match
1287 ** the time of the graph. Beware.
1289 vidx = im->gdes[ii].vidx;
1290 if (im->gdes[vidx].gf == GF_VDEF) {
1291 value = im->gdes[vidx].vf.val;
1293 if (((long int) gr_time >=
1294 (long int) im->gdes[vidx].start)
1295 && ((long int) gr_time <
1296 (long int) im->gdes[vidx].end)) {
1297 value = im->gdes[vidx].data[(unsigned long)
1303 im->gdes[vidx].step)
1304 * im->gdes[vidx].ds_cnt +
1311 if (!isnan(value)) {
1313 im->gdes[ii].p_data[i] = paintval;
1314 /* GF_TICK: the data values are not
1315 ** relevant for min and max
1317 if (finite(paintval) && im->gdes[ii].gf != GF_TICK) {
1318 if ((isnan(minval) || paintval < minval) &&
1319 !(im->logarithmic && paintval <= 0.0))
1321 if (isnan(maxval) || paintval > maxval)
1325 im->gdes[ii].p_data[i] = DNAN;
1330 ("STACK should already be turned into LINE or AREA here");
1339 /* if min or max have not been asigned a value this is because
1340 there was no data in the graph ... this is not good ...
1341 lets set these to dummy values then ... */
1343 if (im->logarithmic) {
1344 if (isnan(minval) || isnan(maxval) || maxval <= 0) {
1345 minval = 0.0; /* catching this right away below */
1348 /* in logarithm mode, where minval is smaller or equal
1349 to 0 make the beast just way smaller than maxval */
1351 minval = maxval / 10e8;
1354 if (isnan(minval) || isnan(maxval)) {
1360 /* adjust min and max values given by the user */
1361 /* for logscale we add something on top */
1362 if (isnan(im->minval)
1363 || ((!im->rigid) && im->minval > minval)
1365 if (im->logarithmic)
1366 im->minval = minval / 2.0;
1368 im->minval = minval;
1370 if (isnan(im->maxval)
1371 || (!im->rigid && im->maxval < maxval)
1373 if (im->logarithmic)
1374 im->maxval = maxval * 2.0;
1376 im->maxval = maxval;
1379 /* make sure min is smaller than max */
1380 if (im->minval > im->maxval) {
1382 im->minval = 0.99 * im->maxval;
1384 im->minval = 1.01 * im->maxval;
1387 /* make sure min and max are not equal */
1388 if (AlmostEqual2sComplement(im->minval, im->maxval, 4)) {
1394 /* make sure min and max are not both zero */
1395 if (AlmostEqual2sComplement(im->maxval, 0, 4)) {
1402 static int find_first_weekday(void){
1403 static int first_weekday = -1;
1404 if (first_weekday == -1){
1405 #ifdef HAVE__NL_TIME_WEEK_1STDAY
1406 /* according to http://sourceware.org/ml/libc-locales/2009-q1/msg00011.html */
1407 long week_1stday_l = (long) nl_langinfo (_NL_TIME_WEEK_1STDAY);
1408 if (week_1stday_l == 19971130) first_weekday = 0; /* Sun */
1409 else if (week_1stday_l == 19971201) first_weekday = 1; /* Mon */
1410 else first_weekday = 1; /* we go for a monday default */
1415 return first_weekday;
1418 /* identify the point where the first gridline, label ... gets placed */
1420 time_t find_first_time(
1421 time_t start, /* what is the initial time */
1422 enum tmt_en baseint, /* what is the basic interval */
1423 long basestep /* how many if these do we jump a time */
1428 localtime_r(&start, &tm);
1429 /* let mktime figure this dst on its own */
1434 tm. tm_sec -= tm.tm_sec % basestep;
1439 tm. tm_min -= tm.tm_min % basestep;
1445 tm. tm_hour -= tm.tm_hour % basestep;
1449 /* we do NOT look at the basestep for this ... */
1456 /* we do NOT look at the basestep for this ... */
1460 tm. tm_mday -= tm.tm_wday - find_first_weekday();
1462 if (tm.tm_wday == 0 && find_first_weekday() > 0)
1463 tm. tm_mday -= 7; /* we want the *previous* week */
1471 tm. tm_mon -= tm.tm_mon % basestep;
1482 tm.tm_year + 1900) %basestep;
1488 /* identify the point where the next gridline, label ... gets placed */
1489 time_t find_next_time(
1490 time_t current, /* what is the initial time */
1491 enum tmt_en baseint, /* what is the basic interval */
1492 long basestep /* how many if these do we jump a time */
1498 localtime_r(¤t, &tm);
1499 /* let mktime figure this dst on its own */
1504 case TMT_SECOND: limit = 7200; break;
1505 case TMT_MINUTE: limit = 120; break;
1506 case TMT_HOUR: limit = 2; break;
1507 default: limit = 2; break;
1512 tm. tm_sec += basestep;
1516 tm. tm_min += basestep;
1520 tm. tm_hour += basestep;
1524 tm. tm_mday += basestep;
1528 tm. tm_mday += 7 * basestep;
1532 tm. tm_mon += basestep;
1536 tm. tm_year += basestep;
1538 madetime = mktime(&tm);
1539 } while (madetime == -1 && limit-- >= 0); /* this is necessary to skip impossible times
1540 like the daylight saving time skips */
1546 /* calculate values required for PRINT and GPRINT functions */
1551 long i, ii, validsteps;
1554 int graphelement = 0;
1557 double magfact = -1;
1562 /* wow initializing tmvdef is quite a task :-) */
1563 time_t now = time(NULL);
1565 localtime_r(&now, &tmvdef);
1566 for (i = 0; i < im->gdes_c; i++) {
1567 vidx = im->gdes[i].vidx;
1568 switch (im->gdes[i].gf) {
1571 /* PRINT and GPRINT can now print VDEF generated values.
1572 * There's no need to do any calculations on them as these
1573 * calculations were already made.
1575 if (im->gdes[vidx].gf == GF_VDEF) { /* simply use vals */
1576 printval = im->gdes[vidx].vf.val;
1577 localtime_r(&im->gdes[vidx].vf.when, &tmvdef);
1578 } else { /* need to calculate max,min,avg etcetera */
1579 max_ii = ((im->gdes[vidx].end - im->gdes[vidx].start)
1580 / im->gdes[vidx].step * im->gdes[vidx].ds_cnt);
1583 for (ii = im->gdes[vidx].ds;
1584 ii < max_ii; ii += im->gdes[vidx].ds_cnt) {
1585 if (!finite(im->gdes[vidx].data[ii]))
1587 if (isnan(printval)) {
1588 printval = im->gdes[vidx].data[ii];
1593 switch (im->gdes[i].cf) {
1597 case CF_DEVSEASONAL:
1601 printval += im->gdes[vidx].data[ii];
1604 printval = min(printval, im->gdes[vidx].data[ii]);
1608 printval = max(printval, im->gdes[vidx].data[ii]);
1611 printval = im->gdes[vidx].data[ii];
1614 if (im->gdes[i].cf == CF_AVERAGE || im->gdes[i].cf > CF_LAST) {
1615 if (validsteps > 1) {
1616 printval = (printval / validsteps);
1619 } /* prepare printval */
1621 if (!im->gdes[i].strftm && (percent_s = strstr(im->gdes[i].format, "%S")) != NULL) {
1622 /* Magfact is set to -1 upon entry to print_calc. If it
1623 * is still less than 0, then we need to run auto_scale.
1624 * Otherwise, put the value into the correct units. If
1625 * the value is 0, then do not set the symbol or magnification
1626 * so next the calculation will be performed again. */
1627 if (magfact < 0.0) {
1628 auto_scale(im, &printval, &si_symb, &magfact);
1629 if (printval == 0.0)
1632 printval /= magfact;
1634 *(++percent_s) = 's';
1635 } else if (!im->gdes[i].strftm && strstr(im->gdes[i].format, "%s") != NULL) {
1636 auto_scale(im, &printval, &si_symb, &magfact);
1639 if (im->gdes[i].gf == GF_PRINT) {
1640 rrd_infoval_t prline;
1642 if (im->gdes[i].strftm) {
1643 prline.u_str = (char*)malloc((FMT_LEG_LEN + 2) * sizeof(char));
1644 if (im->gdes[vidx].vf.never == 1) {
1645 time_clean(prline.u_str, im->gdes[i].format);
1647 strftime(prline.u_str,
1648 FMT_LEG_LEN, im->gdes[i].format, &tmvdef);
1650 } else if (bad_format(im->gdes[i].format)) {
1652 ("bad format for PRINT in '%s'", im->gdes[i].format);
1656 sprintf_alloc(im->gdes[i].format, printval, si_symb);
1660 ("print[%ld]", prline_cnt++), RD_I_STR, prline);
1665 if (im->gdes[i].strftm) {
1666 if (im->gdes[vidx].vf.never == 1) {
1667 time_clean(im->gdes[i].legend, im->gdes[i].format);
1669 strftime(im->gdes[i].legend,
1670 FMT_LEG_LEN, im->gdes[i].format, &tmvdef);
1673 if (bad_format(im->gdes[i].format)) {
1675 ("bad format for GPRINT in '%s'",
1676 im->gdes[i].format);
1679 #ifdef HAVE_SNPRINTF
1680 snprintf(im->gdes[i].legend,
1682 im->gdes[i].format, printval, si_symb);
1684 sprintf(im->gdes[i].legend,
1685 im->gdes[i].format, printval, si_symb);
1698 if (isnan(im->gdes[i].yrule)) { /* we must set this here or the legend printer can not decide to print the legend */
1699 im->gdes[i].yrule = im->gdes[vidx].vf.val;
1704 if (im->gdes[i].xrule == 0) { /* again ... the legend printer needs it */
1705 im->gdes[i].xrule = im->gdes[vidx].vf.when;
1714 #ifdef WITH_PIECHART
1722 ("STACK should already be turned into LINE or AREA here");
1730 return graphelement;
1735 /* place legends with color spots */
1741 int interleg = im->text_prop[TEXT_PROP_LEGEND].size * 2.0;
1742 int border = im->text_prop[TEXT_PROP_LEGEND].size * 2.0;
1743 int fill = 0, fill_last;
1744 double legendwidth; // = im->ximg - 2 * border;
1746 double leg_x = border;
1747 int leg_y = 0; //im->yimg;
1748 int leg_y_prev = 0; // im->yimg;
1751 int i, ii, mark = 0;
1752 char default_txtalign = TXA_JUSTIFIED; /*default line orientation */
1755 char saved_legend[FMT_LEG_LEN + 5];
1761 legendwidth = im->legendwidth - 2 * border;
1765 if (!(im->extra_flags & NOLEGEND) && !(im->extra_flags & ONLY_GRAPH)) {
1766 if ((legspace = (int*)malloc(im->gdes_c * sizeof(int))) == NULL) {
1767 rrd_set_error("malloc for legspace");
1771 for (i = 0; i < im->gdes_c; i++) {
1772 char prt_fctn; /*special printfunctions */
1774 strcpy(saved_legend, im->gdes[i].legend);
1778 /* hide legends for rules which are not displayed */
1779 if (im->gdes[i].gf == GF_TEXTALIGN) {
1780 default_txtalign = im->gdes[i].txtalign;
1783 if (!(im->extra_flags & FORCE_RULES_LEGEND)) {
1784 if (im->gdes[i].gf == GF_HRULE
1785 && (im->gdes[i].yrule <
1786 im->minval || im->gdes[i].yrule > im->maxval))
1787 im->gdes[i].legend[0] = '\0';
1788 if (im->gdes[i].gf == GF_VRULE
1789 && (im->gdes[i].xrule <
1790 im->start || im->gdes[i].xrule > im->end))
1791 im->gdes[i].legend[0] = '\0';
1794 /* turn \\t into tab */
1795 while ((tab = strstr(im->gdes[i].legend, "\\t"))) {
1796 memmove(tab, tab + 1, strlen(tab));
1800 leg_cc = strlen(im->gdes[i].legend);
1801 /* is there a controle code at the end of the legend string ? */
1802 if (leg_cc >= 2 && im->gdes[i].legend[leg_cc - 2] == '\\') {
1803 prt_fctn = im->gdes[i].legend[leg_cc - 1];
1805 im->gdes[i].legend[leg_cc] = '\0';
1809 /* only valid control codes */
1810 if (prt_fctn != 'l' && prt_fctn != 'n' && /* a synonym for l */
1816 prt_fctn != 's' && prt_fctn != '\0' && prt_fctn != 'g') {
1819 ("Unknown control code at the end of '%s\\%c'",
1820 im->gdes[i].legend, prt_fctn);
1824 if (prt_fctn == 'n') {
1827 /* \. is a null operation to allow strings ending in \x */
1828 if (prt_fctn == '.') {
1832 /* remove exess space from the end of the legend for \g */
1833 while (prt_fctn == 'g' &&
1834 leg_cc > 0 && im->gdes[i].legend[leg_cc - 1] == ' ') {
1836 im->gdes[i].legend[leg_cc] = '\0';
1841 /* no interleg space if string ends in \g */
1842 legspace[i] = (prt_fctn == 'g' ? 0 : interleg);
1844 fill += legspace[i];
1847 gfx_get_text_width(im,
1853 im->tabwidth, im->gdes[i].legend);
1858 /* who said there was a special tag ... ? */
1859 if (prt_fctn == 'g') {
1863 if (prt_fctn == '\0') {
1864 if(calc_width && (fill > legendwidth)){
1867 if (i == im->gdes_c - 1 || fill > legendwidth) {
1868 /* just one legend item is left right or center */
1869 switch (default_txtalign) {
1884 /* is it time to place the legends ? */
1885 if (fill > legendwidth) {
1893 if (leg_c == 1 && prt_fctn == 'j') {
1898 if (prt_fctn != '\0') {
1900 if (leg_c >= 2 && prt_fctn == 'j') {
1901 glue = (double)(legendwidth - fill) / (double)(leg_c - 1);
1905 if (prt_fctn == 'c')
1906 leg_x = border + (double)(legendwidth - fill) / 2.0;
1907 if (prt_fctn == 'r')
1908 leg_x = legendwidth - fill + border;
1909 for (ii = mark; ii <= i; ii++) {
1910 if (im->gdes[ii].legend[0] == '\0')
1911 continue; /* skip empty legends */
1912 im->gdes[ii].leg_x = leg_x;
1913 im->gdes[ii].leg_y = leg_y + border;
1915 (double)gfx_get_text_width(im, leg_x,
1920 im->tabwidth, im->gdes[ii].legend)
1921 +(double)legspace[ii]
1925 if (leg_x > border || prt_fctn == 's')
1926 leg_y += im->text_prop[TEXT_PROP_LEGEND].size * 1.8;
1927 if (prt_fctn == 's')
1928 leg_y -= im->text_prop[TEXT_PROP_LEGEND].size;
1929 if (prt_fctn == 'u')
1930 leg_y -= im->text_prop[TEXT_PROP_LEGEND].size *1.8;
1932 if(calc_width && (fill > legendwidth)){
1941 strcpy(im->gdes[i].legend, saved_legend);
1946 im->legendwidth = legendwidth + 2 * border;
1949 im->legendheight = leg_y + border * 0.6;
1956 /* create a grid on the graph. it determines what to do
1957 from the values of xsize, start and end */
1959 /* the xaxis labels are determined from the number of seconds per pixel
1960 in the requested graph */
1962 int calc_horizontal_grid(
1970 int decimals, fractionals;
1972 im->ygrid_scale.labfact = 2;
1973 range = im->maxval - im->minval;
1974 scaledrange = range / im->magfact;
1975 /* does the scale of this graph make it impossible to put lines
1976 on it? If so, give up. */
1977 if (isnan(scaledrange)) {
1981 /* find grid spaceing */
1983 if (isnan(im->ygridstep)) {
1984 if (im->extra_flags & ALTYGRID) {
1985 /* find the value with max number of digits. Get number of digits */
1988 (max(fabs(im->maxval), fabs(im->minval)) *
1989 im->viewfactor / im->magfact));
1990 if (decimals <= 0) /* everything is small. make place for zero */
1992 im->ygrid_scale.gridstep =
1994 floor(log10(range * im->viewfactor / im->magfact))) /
1995 im->viewfactor * im->magfact;
1996 if (im->ygrid_scale.gridstep == 0) /* range is one -> 0.1 is reasonable scale */
1997 im->ygrid_scale.gridstep = 0.1;
1998 /* should have at least 5 lines but no more then 15 */
1999 if (range / im->ygrid_scale.gridstep < 5
2000 && im->ygrid_scale.gridstep >= 30)
2001 im->ygrid_scale.gridstep /= 10;
2002 if (range / im->ygrid_scale.gridstep > 15)
2003 im->ygrid_scale.gridstep *= 10;
2004 if (range / im->ygrid_scale.gridstep > 5) {
2005 im->ygrid_scale.labfact = 1;
2006 if (range / im->ygrid_scale.gridstep > 8
2007 || im->ygrid_scale.gridstep <
2008 1.8 * im->text_prop[TEXT_PROP_AXIS].size)
2009 im->ygrid_scale.labfact = 2;
2011 im->ygrid_scale.gridstep /= 5;
2012 im->ygrid_scale.labfact = 5;
2016 (im->ygrid_scale.gridstep *
2017 (double) im->ygrid_scale.labfact * im->viewfactor /
2019 if (fractionals < 0) { /* small amplitude. */
2020 int len = decimals - fractionals + 1;
2022 if (im->unitslength < len + 2)
2023 im->unitslength = len + 2;
2024 sprintf(im->ygrid_scale.labfmt,
2026 -fractionals, (im->symbol != ' ' ? " %c" : ""));
2028 int len = decimals + 1;
2030 if (im->unitslength < len + 2)
2031 im->unitslength = len + 2;
2032 sprintf(im->ygrid_scale.labfmt,
2033 "%%%d.0f%s", len, (im->symbol != ' ' ? " %c" : ""));
2035 } else { /* classic rrd grid */
2036 for (i = 0; ylab[i].grid > 0; i++) {
2037 pixel = im->ysize / (scaledrange / ylab[i].grid);
2043 for (i = 0; i < 4; i++) {
2044 if (pixel * ylab[gridind].lfac[i] >=
2045 1.8 * im->text_prop[TEXT_PROP_AXIS].size) {
2046 im->ygrid_scale.labfact = ylab[gridind].lfac[i];
2051 im->ygrid_scale.gridstep = ylab[gridind].grid * im->magfact;
2054 im->ygrid_scale.gridstep = im->ygridstep;
2055 im->ygrid_scale.labfact = im->ylabfact;
2060 int draw_horizontal_grid(
2066 char graph_label[100];
2068 double X0 = im->xorigin;
2069 double X1 = im->xorigin + im->xsize;
2070 int sgrid = (int) (im->minval / im->ygrid_scale.gridstep - 1);
2071 int egrid = (int) (im->maxval / im->ygrid_scale.gridstep + 1);
2073 double second_axis_magfact = 0;
2074 char *second_axis_symb = "";
2077 im->ygrid_scale.gridstep /
2078 (double) im->magfact * (double) im->viewfactor;
2079 MaxY = scaledstep * (double) egrid;
2080 for (i = sgrid; i <= egrid; i++) {
2082 im->ygrid_scale.gridstep * i);
2084 im->ygrid_scale.gridstep * (i + 1));
2086 if (floor(Y0 + 0.5) >=
2087 im->yorigin - im->ysize && floor(Y0 + 0.5) <= im->yorigin) {
2088 /* Make sure at least 2 grid labels are shown, even if it doesn't agree
2089 with the chosen settings. Add a label if required by settings, or if
2090 there is only one label so far and the next grid line is out of bounds. */
2091 if (i % im->ygrid_scale.labfact == 0
2093 && (YN < im->yorigin - im->ysize || YN > im->yorigin))) {
2094 if (im->symbol == ' ') {
2095 if (im->extra_flags & ALTYGRID) {
2096 sprintf(graph_label,
2097 im->ygrid_scale.labfmt,
2098 scaledstep * (double) i);
2101 sprintf(graph_label, "%4.1f",
2102 scaledstep * (double) i);
2104 sprintf(graph_label, "%4.0f",
2105 scaledstep * (double) i);
2109 char sisym = (i == 0 ? ' ' : im->symbol);
2111 if (im->extra_flags & ALTYGRID) {
2112 sprintf(graph_label,
2113 im->ygrid_scale.labfmt,
2114 scaledstep * (double) i, sisym);
2117 sprintf(graph_label, "%4.1f %c",
2118 scaledstep * (double) i, sisym);
2120 sprintf(graph_label, "%4.0f %c",
2121 scaledstep * (double) i, sisym);
2126 if (im->second_axis_scale != 0){
2127 char graph_label_right[100];
2128 double sval = im->ygrid_scale.gridstep*(double)i*im->second_axis_scale+im->second_axis_shift;
2129 if (im->second_axis_format[0] == '\0'){
2130 if (!second_axis_magfact){
2131 double dummy = im->ygrid_scale.gridstep*(double)(sgrid+egrid)/2.0*im->second_axis_scale+im->second_axis_shift;
2132 auto_scale(im,&dummy,&second_axis_symb,&second_axis_magfact);
2134 sval /= second_axis_magfact;
2137 sprintf(graph_label_right,"%5.1f %s",sval,second_axis_symb);
2139 sprintf(graph_label_right,"%5.0f %s",sval,second_axis_symb);
2143 sprintf(graph_label_right,im->second_axis_format,sval);
2147 im->graph_col[GRC_FONT],
2148 im->text_prop[TEXT_PROP_AXIS].font_desc,
2149 im->tabwidth,0.0, GFX_H_LEFT, GFX_V_CENTER,
2150 graph_label_right );
2156 text_prop[TEXT_PROP_AXIS].
2158 im->graph_col[GRC_FONT],
2160 text_prop[TEXT_PROP_AXIS].
2163 GFX_H_RIGHT, GFX_V_CENTER, graph_label);
2164 gfx_line(im, X0 - 2, Y0, X0, Y0,
2165 MGRIDWIDTH, im->graph_col[GRC_MGRID]);
2166 gfx_line(im, X1, Y0, X1 + 2, Y0,
2167 MGRIDWIDTH, im->graph_col[GRC_MGRID]);
2168 gfx_dashed_line(im, X0 - 2, Y0,
2174 im->grid_dash_on, im->grid_dash_off);
2175 } else if (!(im->extra_flags & NOMINOR)) {
2178 X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
2179 gfx_line(im, X1, Y0, X1 + 2, Y0,
2180 GRIDWIDTH, im->graph_col[GRC_GRID]);
2181 gfx_dashed_line(im, X0 - 1, Y0,
2185 graph_col[GRC_GRID],
2186 im->grid_dash_on, im->grid_dash_off);
2193 /* this is frexp for base 10 */
2204 iexp = floor(log((double)fabs(x)) / log((double)10));
2205 mnt = x / pow(10.0, iexp);
2208 mnt = x / pow(10.0, iexp);
2215 /* logaritmic horizontal grid */
2216 int horizontal_log_grid(
2220 double yloglab[][10] = {
2222 1.0, 10., 0.0, 0.0, 0.0, 0.0, 0.0,
2224 1.0, 5.0, 10., 0.0, 0.0, 0.0, 0.0,
2226 1.0, 2.0, 5.0, 7.0, 10., 0.0, 0.0,
2243 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* last line */
2245 int i, j, val_exp, min_exp;
2246 double nex; /* number of decades in data */
2247 double logscale; /* scale in logarithmic space */
2248 int exfrac = 1; /* decade spacing */
2249 int mid = -1; /* row in yloglab for major grid */
2250 double mspac; /* smallest major grid spacing (pixels) */
2251 int flab; /* first value in yloglab to use */
2252 double value, tmp, pre_value;
2254 char graph_label[100];
2256 nex = log10(im->maxval / im->minval);
2257 logscale = im->ysize / nex;
2258 /* major spacing for data with high dynamic range */
2259 while (logscale * exfrac < 3 * im->text_prop[TEXT_PROP_LEGEND].size) {
2266 /* major spacing for less dynamic data */
2268 /* search best row in yloglab */
2270 for (i = 0; yloglab[mid][i + 1] < 10.0; i++);
2271 mspac = logscale * log10(10.0 / yloglab[mid][i]);
2274 2 * im->text_prop[TEXT_PROP_LEGEND].size && yloglab[mid][0] > 0);
2277 /* find first value in yloglab */
2279 yloglab[mid][flab] < 10
2280 && frexp10(im->minval, &tmp) > yloglab[mid][flab]; flab++);
2281 if (yloglab[mid][flab] == 10.0) {
2286 if (val_exp % exfrac)
2287 val_exp += abs(-val_exp % exfrac);
2289 X1 = im->xorigin + im->xsize;
2294 value = yloglab[mid][flab] * pow(10.0, val_exp);
2295 if (AlmostEqual2sComplement(value, pre_value, 4))
2296 break; /* it seems we are not converging */
2298 Y0 = ytr(im, value);
2299 if (floor(Y0 + 0.5) <= im->yorigin - im->ysize)
2301 /* major grid line */
2303 X0 - 2, Y0, X0, Y0, MGRIDWIDTH, im->graph_col[GRC_MGRID]);
2304 gfx_line(im, X1, Y0, X1 + 2, Y0,
2305 MGRIDWIDTH, im->graph_col[GRC_MGRID]);
2306 gfx_dashed_line(im, X0 - 2, Y0,
2311 [GRC_MGRID], im->grid_dash_on, im->grid_dash_off);
2313 if (im->extra_flags & FORCE_UNITS_SI) {
2318 scale = floor(val_exp / 3.0);
2320 pvalue = pow(10.0, val_exp % 3);
2322 pvalue = pow(10.0, ((val_exp + 1) % 3) + 2);
2323 pvalue *= yloglab[mid][flab];
2324 if (((scale + si_symbcenter) < (int) sizeof(si_symbol))
2325 && ((scale + si_symbcenter) >= 0))
2326 symbol = si_symbol[scale + si_symbcenter];
2329 sprintf(graph_label, "%3.0f %c", pvalue, symbol);
2331 sprintf(graph_label, "%3.0e", value);
2333 if (im->second_axis_scale != 0){
2334 char graph_label_right[100];
2335 double sval = value*im->second_axis_scale+im->second_axis_shift;
2336 if (im->second_axis_format[0] == '\0'){
2337 if (im->extra_flags & FORCE_UNITS_SI) {
2340 auto_scale(im,&sval,&symb,&mfac);
2341 sprintf(graph_label_right,"%4.0f %s", sval,symb);
2344 sprintf(graph_label_right,"%3.0e", sval);
2348 sprintf(graph_label_right,im->second_axis_format,sval,"");
2353 im->graph_col[GRC_FONT],
2354 im->text_prop[TEXT_PROP_AXIS].font_desc,
2355 im->tabwidth,0.0, GFX_H_LEFT, GFX_V_CENTER,
2356 graph_label_right );
2362 text_prop[TEXT_PROP_AXIS].
2364 im->graph_col[GRC_FONT],
2366 text_prop[TEXT_PROP_AXIS].
2369 GFX_H_RIGHT, GFX_V_CENTER, graph_label);
2371 if (mid < 4 && exfrac == 1) {
2372 /* find first and last minor line behind current major line
2373 * i is the first line and j tha last */
2375 min_exp = val_exp - 1;
2376 for (i = 1; yloglab[mid][i] < 10.0; i++);
2377 i = yloglab[mid][i - 1] + 1;
2381 i = yloglab[mid][flab - 1] + 1;
2382 j = yloglab[mid][flab];
2385 /* draw minor lines below current major line */
2386 for (; i < j; i++) {
2388 value = i * pow(10.0, min_exp);
2389 if (value < im->minval)
2391 Y0 = ytr(im, value);
2392 if (floor(Y0 + 0.5) <= im->yorigin - im->ysize)
2397 X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
2398 gfx_line(im, X1, Y0, X1 + 2, Y0,
2399 GRIDWIDTH, im->graph_col[GRC_GRID]);
2400 gfx_dashed_line(im, X0 - 1, Y0,
2404 graph_col[GRC_GRID],
2405 im->grid_dash_on, im->grid_dash_off);
2407 } else if (exfrac > 1) {
2408 for (i = val_exp - exfrac / 3 * 2; i < val_exp; i += exfrac / 3) {
2409 value = pow(10.0, i);
2410 if (value < im->minval)
2412 Y0 = ytr(im, value);
2413 if (floor(Y0 + 0.5) <= im->yorigin - im->ysize)
2418 X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
2419 gfx_line(im, X1, Y0, X1 + 2, Y0,
2420 GRIDWIDTH, im->graph_col[GRC_GRID]);
2421 gfx_dashed_line(im, X0 - 1, Y0,
2425 graph_col[GRC_GRID],
2426 im->grid_dash_on, im->grid_dash_off);
2431 if (yloglab[mid][++flab] == 10.0) {
2437 /* draw minor lines after highest major line */
2438 if (mid < 4 && exfrac == 1) {
2439 /* find first and last minor line below current major line
2440 * i is the first line and j tha last */
2442 min_exp = val_exp - 1;
2443 for (i = 1; yloglab[mid][i] < 10.0; i++);
2444 i = yloglab[mid][i - 1] + 1;
2448 i = yloglab[mid][flab - 1] + 1;
2449 j = yloglab[mid][flab];
2452 /* draw minor lines below current major line */
2453 for (; i < j; i++) {
2455 value = i * pow(10.0, min_exp);
2456 if (value < im->minval)
2458 Y0 = ytr(im, value);
2459 if (floor(Y0 + 0.5) <= im->yorigin - im->ysize)
2463 X0 - 2, Y0, X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
2464 gfx_line(im, X1, Y0, X1 + 2, Y0,
2465 GRIDWIDTH, im->graph_col[GRC_GRID]);
2466 gfx_dashed_line(im, X0 - 1, Y0,
2470 graph_col[GRC_GRID],
2471 im->grid_dash_on, im->grid_dash_off);
2474 /* fancy minor gridlines */
2475 else if (exfrac > 1) {
2476 for (i = val_exp - exfrac / 3 * 2; i < val_exp; i += exfrac / 3) {
2477 value = pow(10.0, i);
2478 if (value < im->minval)
2480 Y0 = ytr(im, value);
2481 if (floor(Y0 + 0.5) <= im->yorigin - im->ysize)
2485 X0 - 2, Y0, X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]);
2486 gfx_line(im, X1, Y0, X1 + 2, Y0,
2487 GRIDWIDTH, im->graph_col[GRC_GRID]);
2488 gfx_dashed_line(im, X0 - 1, Y0,
2492 graph_col[GRC_GRID],
2493 im->grid_dash_on, im->grid_dash_off);
2504 int xlab_sel; /* which sort of label and grid ? */
2505 time_t ti, tilab, timajor;
2507 char graph_label[100];
2508 double X0, Y0, Y1; /* points for filled graph and more */
2511 /* the type of time grid is determined by finding
2512 the number of seconds per pixel in the graph */
2513 if (im->xlab_user.minsec == -1) {
2514 factor = (im->end - im->start) / im->xsize;
2516 while (xlab[xlab_sel + 1].minsec !=
2517 -1 && xlab[xlab_sel + 1].minsec <= factor) {
2519 } /* pick the last one */
2520 while (xlab[xlab_sel - 1].minsec ==
2521 xlab[xlab_sel].minsec
2522 && xlab[xlab_sel].length > (im->end - im->start)) {
2524 } /* go back to the smallest size */
2525 im->xlab_user.gridtm = xlab[xlab_sel].gridtm;
2526 im->xlab_user.gridst = xlab[xlab_sel].gridst;
2527 im->xlab_user.mgridtm = xlab[xlab_sel].mgridtm;
2528 im->xlab_user.mgridst = xlab[xlab_sel].mgridst;
2529 im->xlab_user.labtm = xlab[xlab_sel].labtm;
2530 im->xlab_user.labst = xlab[xlab_sel].labst;
2531 im->xlab_user.precis = xlab[xlab_sel].precis;
2532 im->xlab_user.stst = xlab[xlab_sel].stst;
2535 /* y coords are the same for every line ... */
2537 Y1 = im->yorigin - im->ysize;
2538 /* paint the minor grid */
2539 if (!(im->extra_flags & NOMINOR)) {
2540 for (ti = find_first_time(im->start,
2548 find_first_time(im->start,
2553 ti < im->end && ti != -1;
2555 find_next_time(ti, im->xlab_user.gridtm, im->xlab_user.gridst)
2557 /* are we inside the graph ? */
2558 if (ti < im->start || ti > im->end)
2560 while (timajor < ti && timajor != -1) {
2561 timajor = find_next_time(timajor,
2564 mgridtm, im->xlab_user.mgridst);
2566 if (timajor == -1) break; /* fail in case of problems with time increments */
2568 continue; /* skip as falls on major grid line */
2570 gfx_line(im, X0, Y1 - 2, X0, Y1,
2571 GRIDWIDTH, im->graph_col[GRC_GRID]);
2572 gfx_line(im, X0, Y0, X0, Y0 + 2,
2573 GRIDWIDTH, im->graph_col[GRC_GRID]);
2574 gfx_dashed_line(im, X0, Y0 + 1, X0,
2577 graph_col[GRC_GRID],
2578 im->grid_dash_on, im->grid_dash_off);
2582 /* paint the major grid */
2583 for (ti = find_first_time(im->start,
2590 ti < im->end && ti != -1;
2591 ti = find_next_time(ti, im->xlab_user.mgridtm, im->xlab_user.mgridst)
2593 /* are we inside the graph ? */
2594 if (ti < im->start || ti > im->end)
2597 gfx_line(im, X0, Y1 - 2, X0, Y1,
2598 MGRIDWIDTH, im->graph_col[GRC_MGRID]);
2599 gfx_line(im, X0, Y0, X0, Y0 + 3,
2600 MGRIDWIDTH, im->graph_col[GRC_MGRID]);
2601 gfx_dashed_line(im, X0, Y0 + 3, X0,
2605 [GRC_MGRID], im->grid_dash_on, im->grid_dash_off);
2607 /* paint the labels below the graph */
2609 find_first_time(im->start -
2618 im->xlab_user.precis / 2) && ti != -1;
2619 ti = find_next_time(ti, im->xlab_user.labtm, im->xlab_user.labst)
2621 tilab = ti + im->xlab_user.precis / 2; /* correct time for the label */
2622 /* are we inside the graph ? */
2623 if (tilab < im->start || tilab > im->end)
2626 localtime_r(&tilab, &tm);
2627 strftime(graph_label, 99, im->xlab_user.stst, &tm);
2629 # error "your libc has no strftime I guess we'll abort the exercise here."
2634 im->graph_col[GRC_FONT],
2636 text_prop[TEXT_PROP_AXIS].
2639 GFX_H_CENTER, GFX_V_TOP, graph_label);
2648 /* draw x and y axis */
2649 /* gfx_line ( im->canvas, im->xorigin+im->xsize,im->yorigin,
2650 im->xorigin+im->xsize,im->yorigin-im->ysize,
2651 GRIDWIDTH, im->graph_col[GRC_AXIS]);
2653 gfx_line ( im->canvas, im->xorigin,im->yorigin-im->ysize,
2654 im->xorigin+im->xsize,im->yorigin-im->ysize,
2655 GRIDWIDTH, im->graph_col[GRC_AXIS]); */
2657 gfx_line(im, im->xorigin - 4,
2659 im->xorigin + im->xsize +
2660 4, im->yorigin, MGRIDWIDTH, im->graph_col[GRC_AXIS]);
2661 gfx_line(im, im->xorigin,
2664 im->yorigin - im->ysize -
2665 4, MGRIDWIDTH, im->graph_col[GRC_AXIS]);
2666 /* arrow for X and Y axis direction */
2667 gfx_new_area(im, im->xorigin + im->xsize + 2, im->yorigin - 3, im->xorigin + im->xsize + 2, im->yorigin + 3, im->xorigin + im->xsize + 7, im->yorigin, /* horyzontal */
2668 im->graph_col[GRC_ARROW]);
2670 gfx_new_area(im, im->xorigin - 3, im->yorigin - im->ysize - 2, im->xorigin + 3, im->yorigin - im->ysize - 2, im->xorigin, im->yorigin - im->ysize - 7, /* vertical */
2671 im->graph_col[GRC_ARROW]);
2673 if (im->second_axis_scale != 0){
2674 gfx_line ( im, im->xorigin+im->xsize,im->yorigin+4,
2675 im->xorigin+im->xsize,im->yorigin-im->ysize-4,
2676 MGRIDWIDTH, im->graph_col[GRC_AXIS]);
2678 im->xorigin+im->xsize-2, im->yorigin-im->ysize-2,
2679 im->xorigin+im->xsize+3, im->yorigin-im->ysize-2,
2680 im->xorigin+im->xsize, im->yorigin-im->ysize-7, /* LINEOFFSET */
2681 im->graph_col[GRC_ARROW]);
2692 double X0, Y0; /* points for filled graph and more */
2693 struct gfx_color_t water_color;
2695 if (im->draw_3d_border > 0) {
2696 /* draw 3d border */
2697 i = im->draw_3d_border;
2698 gfx_new_area(im, 0, im->yimg,
2699 i, im->yimg - i, i, i, im->graph_col[GRC_SHADEA]);
2700 gfx_add_point(im, im->ximg - i, i);
2701 gfx_add_point(im, im->ximg, 0);
2702 gfx_add_point(im, 0, 0);
2704 gfx_new_area(im, i, im->yimg - i,
2706 im->yimg - i, im->ximg - i, i, im->graph_col[GRC_SHADEB]);
2707 gfx_add_point(im, im->ximg, 0);
2708 gfx_add_point(im, im->ximg, im->yimg);
2709 gfx_add_point(im, 0, im->yimg);
2712 if (im->draw_x_grid == 1)
2714 if (im->draw_y_grid == 1) {
2715 if (im->logarithmic) {
2716 res = horizontal_log_grid(im);
2718 res = draw_horizontal_grid(im);
2721 /* dont draw horizontal grid if there is no min and max val */
2723 char *nodata = "No Data found";
2725 gfx_text(im, im->ximg / 2,
2728 im->graph_col[GRC_FONT],
2730 text_prop[TEXT_PROP_AXIS].
2733 GFX_H_CENTER, GFX_V_CENTER, nodata);
2737 /* yaxis unit description */
2738 if (im->ylegend[0] != '\0'){
2740 im->xOriginLegendY+10,
2742 im->graph_col[GRC_FONT],
2744 text_prop[TEXT_PROP_UNIT].
2747 RRDGRAPH_YLEGEND_ANGLE, GFX_H_CENTER, GFX_V_CENTER, im->ylegend);
2750 if (im->second_axis_legend[0] != '\0'){
2752 im->xOriginLegendY2+10,
2753 im->yOriginLegendY2,
2754 im->graph_col[GRC_FONT],
2755 im->text_prop[TEXT_PROP_UNIT].font_desc,
2757 RRDGRAPH_YLEGEND_ANGLE,
2758 GFX_H_CENTER, GFX_V_CENTER,
2759 im->second_axis_legend);
2764 im->xOriginTitle, im->yOriginTitle+6,
2765 im->graph_col[GRC_FONT],
2767 text_prop[TEXT_PROP_TITLE].
2769 im->tabwidth, 0.0, GFX_H_CENTER, GFX_V_TOP, im->title);
2770 /* rrdtool 'logo' */
2771 if (!(im->extra_flags & NO_RRDTOOL_TAG)){
2772 water_color = im->graph_col[GRC_FONT];
2773 water_color.alpha = 0.3;
2774 double xpos = im->legendposition == EAST ? im->xOriginLegendY : im->ximg - 4;
2775 gfx_text(im, xpos, 5,
2778 text_prop[TEXT_PROP_WATERMARK].
2779 font_desc, im->tabwidth,
2780 -90, GFX_H_LEFT, GFX_V_TOP, "RRDTOOL / TOBI OETIKER");
2782 /* graph watermark */
2783 if (im->watermark[0] != '\0') {
2784 water_color = im->graph_col[GRC_FONT];
2785 water_color.alpha = 0.3;
2787 im->ximg / 2, im->yimg - 6,
2790 text_prop[TEXT_PROP_WATERMARK].
2791 font_desc, im->tabwidth, 0,
2792 GFX_H_CENTER, GFX_V_BOTTOM, im->watermark);
2796 if (!(im->extra_flags & NOLEGEND) && !(im->extra_flags & ONLY_GRAPH)) {
2797 for (i = 0; i < im->gdes_c; i++) {
2798 if (im->gdes[i].legend[0] == '\0')
2800 /* im->gdes[i].leg_y is the bottom of the legend */
2801 X0 = im->xOriginLegend + im->gdes[i].leg_x;
2802 Y0 = im->legenddirection == TOP_DOWN ? im->yOriginLegend + im->gdes[i].leg_y : im->yOriginLegend + im->legendheight - im->gdes[i].leg_y;
2803 gfx_text(im, X0, Y0,
2804 im->graph_col[GRC_FONT],
2807 [TEXT_PROP_LEGEND].font_desc,
2809 GFX_H_LEFT, GFX_V_BOTTOM, im->gdes[i].legend);
2810 /* The legend for GRAPH items starts with "M " to have
2811 enough space for the box */
2812 if (im->gdes[i].gf != GF_PRINT &&
2813 im->gdes[i].gf != GF_GPRINT && im->gdes[i].gf != GF_COMMENT) {
2817 boxH = gfx_get_text_width(im, 0,
2822 im->tabwidth, "o") * 1.2;
2824 /* shift the box up a bit */
2827 if (im->dynamic_labels && im->gdes[i].gf == GF_HRULE) { /* [-] */
2829 cairo_new_path(im->cr);
2830 cairo_set_line_width(im->cr, 1.0);
2833 X0 + boxH, Y0 - boxV / 2,
2834 1.0, im->gdes[i].col);
2836 } else if (im->dynamic_labels && im->gdes[i].gf == GF_VRULE) { /* [|] */
2838 cairo_new_path(im->cr);
2839 cairo_set_line_width(im->cr, 1.0);
2842 X0 + boxH / 2, Y0 - boxV,
2843 1.0, im->gdes[i].col);
2845 } else if (im->dynamic_labels && im->gdes[i].gf == GF_LINE) { /* [/] */
2847 cairo_new_path(im->cr);
2848 cairo_set_line_width(im->cr, im->gdes[i].linewidth);
2851 X0 + boxH, Y0 - boxV,
2852 im->gdes[i].linewidth, im->gdes[i].col);
2855 /* make sure transparent colors show up the same way as in the graph */
2858 X0, Y0, X0 + boxH, Y0, im->graph_col[GRC_BACK]);
2859 gfx_add_point(im, X0 + boxH, Y0 - boxV);
2861 gfx_new_area(im, X0, Y0 - boxV, X0,
2862 Y0, X0 + boxH, Y0, im->gdes[i].col);
2863 gfx_add_point(im, X0 + boxH, Y0 - boxV);
2866 cairo_new_path(im->cr);
2867 cairo_set_line_width(im->cr, 1.0);
2870 gfx_line_fit(im, &X0, &Y0);
2871 gfx_line_fit(im, &X1, &Y1);
2872 cairo_move_to(im->cr, X0, Y0);
2873 cairo_line_to(im->cr, X1, Y0);
2874 cairo_line_to(im->cr, X1, Y1);
2875 cairo_line_to(im->cr, X0, Y1);
2876 cairo_close_path(im->cr);
2877 cairo_set_source_rgba(im->cr,
2878 im->graph_col[GRC_FRAME].red,
2879 im->graph_col[GRC_FRAME].green,
2880 im->graph_col[GRC_FRAME].blue,
2881 im->graph_col[GRC_FRAME].alpha);
2883 if (im->gdes[i].dash) {
2884 /* make box borders in legend dashed if the graph is dashed */
2888 cairo_set_dash(im->cr, dashes, 1, 0.0);
2890 cairo_stroke(im->cr);
2891 cairo_restore(im->cr);
2898 /*****************************************************
2899 * lazy check make sure we rely need to create this graph
2900 *****************************************************/
2907 struct stat imgstat;
2910 return 0; /* no lazy option */
2911 if (strlen(im->graphfile) == 0)
2912 return 0; /* inmemory option */
2913 if (stat(im->graphfile, &imgstat) != 0)
2914 return 0; /* can't stat */
2915 /* one pixel in the existing graph is more then what we would
2917 if (time(NULL) - imgstat.st_mtime > (im->end - im->start) / im->xsize)
2919 if ((fd = fopen(im->graphfile, "rb")) == NULL)
2920 return 0; /* the file does not exist */
2921 switch (im->imgformat) {
2923 size = PngSize(fd, &(im->ximg), &(im->yimg));
2933 int graph_size_location(
2938 /* The actual size of the image to draw is determined from
2939 ** several sources. The size given on the command line is
2940 ** the graph area but we need more as we have to draw labels
2941 ** and other things outside the graph area. If the option
2942 ** --full-size-mode is selected the size defines the total
2943 ** image size and the size available for the graph is
2947 /** +---+-----------------------------------+
2948 ** | y |...............graph title.........|
2949 ** | +---+-------------------------------+
2953 ** | s | x | main graph area |
2958 ** | l | b +-------------------------------+
2959 ** | e | l | x axis labels |
2960 ** +---+---+-------------------------------+
2961 ** |....................legends............|
2962 ** +---------------------------------------+
2964 ** +---------------------------------------+
2967 int Xvertical = 0, Xvertical2 = 0, Ytitle =
2968 0, Xylabel = 0, Xmain = 0, Ymain =
2969 0, Yxlabel = 0, Xspacing = 15, Yspacing = 15, Ywatermark = 4;
2971 // no legends and no the shall be plotted it's easy
2972 if (im->extra_flags & ONLY_GRAPH) {
2974 im->ximg = im->xsize;
2975 im->yimg = im->ysize;
2976 im->yorigin = im->ysize;
2982 if(im->watermark[0] != '\0') {
2983 Ywatermark = im->text_prop[TEXT_PROP_WATERMARK].size * 2;
2986 // calculate the width of the left vertical legend
2987 if (im->ylegend[0] != '\0') {
2988 Xvertical = im->text_prop[TEXT_PROP_UNIT].size * 2;
2991 // calculate the width of the right vertical legend
2992 if (im->second_axis_legend[0] != '\0') {
2993 Xvertical2 = im->text_prop[TEXT_PROP_UNIT].size * 2;
2996 Xvertical2 = Xspacing;
2999 if (im->title[0] != '\0') {
3000 /* The title is placed "inbetween" two text lines so it
3001 ** automatically has some vertical spacing. The horizontal
3002 ** spacing is added here, on each side.
3004 /* if necessary, reduce the font size of the title until it fits the image width */
3005 Ytitle = im->text_prop[TEXT_PROP_TITLE].size * 2.6 + 10;
3008 // we have no title; get a little clearing from the top
3013 if (im->draw_x_grid) {
3014 // calculate the height of the horizontal labelling
3015 Yxlabel = im->text_prop[TEXT_PROP_AXIS].size * 2.5;
3017 if (im->draw_y_grid || im->forceleftspace) {
3018 // calculate the width of the vertical labelling
3020 gfx_get_text_width(im, 0,
3021 im->text_prop[TEXT_PROP_AXIS].font_desc,
3022 im->tabwidth, "0") * im->unitslength;
3026 // add some space to the labelling
3027 Xylabel += Xspacing;
3029 /* If the legend is printed besides the graph the width has to be
3030 ** calculated first. Placing the legend north or south of the
3031 ** graph requires the width calculation first, so the legend is
3032 ** skipped for the moment.
3034 im->legendheight = 0;
3035 im->legendwidth = 0;
3036 if (!(im->extra_flags & NOLEGEND)) {
3037 if(im->legendposition == WEST || im->legendposition == EAST){
3038 if (leg_place(im, 1) == -1){
3044 if (im->extra_flags & FULL_SIZE_MODE) {
3046 /* The actual size of the image to draw has been determined by the user.
3047 ** The graph area is the space remaining after accounting for the legend,
3048 ** the watermark, the axis labels, and the title.
3050 im->ximg = im->xsize;
3051 im->yimg = im->ysize;
3055 /* Now calculate the total size. Insert some spacing where
3056 desired. im->xorigin and im->yorigin need to correspond
3057 with the lower left corner of the main graph area or, if
3058 this one is not set, the imaginary box surrounding the
3060 /* Initial size calculation for the main graph area */
3062 Xmain -= Xylabel;// + Xspacing;
3063 if((im->legendposition == WEST || im->legendposition == EAST) && !(im->extra_flags & NOLEGEND) ){
3064 Xmain -= im->legendwidth;// + Xspacing;
3066 if (im->second_axis_scale != 0){
3069 if (!(im->extra_flags & NO_RRDTOOL_TAG)){
3073 Xmain -= Xvertical + Xvertical2;
3075 /* limit the remaining space to 0 */
3081 /* Putting the legend north or south, the height can now be calculated */
3082 if (!(im->extra_flags & NOLEGEND)) {
3083 if(im->legendposition == NORTH || im->legendposition == SOUTH){
3084 im->legendwidth = im->ximg;
3085 if (leg_place(im, 0) == -1){
3091 if( (im->legendposition == NORTH || im->legendposition == SOUTH) && !(im->extra_flags & NOLEGEND) ){
3092 Ymain -= Yxlabel + im->legendheight;
3098 /* reserve space for the title *or* some padding above the graph */
3101 /* reserve space for padding below the graph */
3102 if (im->extra_flags & NOLEGEND) {
3103 Ymain -= 0.5*Yspacing;
3106 if (im->watermark[0] != '\0') {
3107 Ymain -= Ywatermark;
3109 /* limit the remaining height to 0 */
3114 } else { /* dimension options -width and -height refer to the dimensions of the main graph area */
3116 /* The actual size of the image to draw is determined from
3117 ** several sources. The size given on the command line is
3118 ** the graph area but we need more as we have to draw labels
3119 ** and other things outside the graph area.
3123 Xmain = im->xsize; // + Xspacing;
3127 im->ximg = Xmain + Xylabel;
3128 if (!(im->extra_flags & NO_RRDTOOL_TAG)){
3129 im->ximg += Xspacing;
3132 if( (im->legendposition == WEST || im->legendposition == EAST) && !(im->extra_flags & NOLEGEND) ){
3133 im->ximg += im->legendwidth;// + Xspacing;
3135 if (im->second_axis_scale != 0){
3136 im->ximg += Xylabel;
3139 im->ximg += Xvertical + Xvertical2;
3141 if (!(im->extra_flags & NOLEGEND)) {
3142 if(im->legendposition == NORTH || im->legendposition == SOUTH){
3143 im->legendwidth = im->ximg;
3144 if (leg_place(im, 0) == -1){
3150 im->yimg = Ymain + Yxlabel;
3151 if( (im->legendposition == NORTH || im->legendposition == SOUTH) && !(im->extra_flags & NOLEGEND) ){
3152 im->yimg += im->legendheight;
3155 /* reserve space for the title *or* some padding above the graph */
3159 im->yimg += 1.5 * Yspacing;
3161 /* reserve space for padding below the graph */
3162 if (im->extra_flags & NOLEGEND) {
3163 im->yimg += 0.5*Yspacing;
3166 if (im->watermark[0] != '\0') {
3167 im->yimg += Ywatermark;
3172 /* In case of putting the legend in west or east position the first
3173 ** legend calculation might lead to wrong positions if some items
3174 ** are not aligned on the left hand side (e.g. centered) as the
3175 ** legendwidth wight have been increased after the item was placed.
3176 ** In this case the positions have to be recalculated.
3178 if (!(im->extra_flags & NOLEGEND)) {
3179 if(im->legendposition == WEST || im->legendposition == EAST){
3180 if (leg_place(im, 0) == -1){
3186 /* After calculating all dimensions
3187 ** it is now possible to calculate
3190 switch(im->legendposition){
3192 im->xOriginTitle = (im->ximg / 2);
3193 im->yOriginTitle = 0;
3195 im->xOriginLegend = 0;
3196 im->yOriginLegend = Ytitle;
3198 im->xOriginLegendY = 0;
3199 im->yOriginLegendY = Ytitle + im->legendheight + (Ymain / 2) + Yxlabel;
3201 im->xorigin = Xvertical + Xylabel;
3202 im->yorigin = Ytitle + im->legendheight + Ymain;
3204 im->xOriginLegendY2 = Xvertical + Xylabel + Xmain;
3205 if (im->second_axis_scale != 0){
3206 im->xOriginLegendY2 += Xylabel;
3208 im->yOriginLegendY2 = Ytitle + im->legendheight + (Ymain / 2) + Yxlabel;
3213 im->xOriginTitle = im->legendwidth + im->xsize / 2;
3214 im->yOriginTitle = 0;
3216 im->xOriginLegend = 0;
3217 im->yOriginLegend = Ytitle;
3219 im->xOriginLegendY = im->legendwidth;
3220 im->yOriginLegendY = Ytitle + (Ymain / 2);
3222 im->xorigin = im->legendwidth + Xvertical + Xylabel;
3223 im->yorigin = Ytitle + Ymain;
3225 im->xOriginLegendY2 = im->legendwidth + Xvertical + Xylabel + Xmain;
3226 if (im->second_axis_scale != 0){
3227 im->xOriginLegendY2 += Xylabel;
3229 im->yOriginLegendY2 = Ytitle + (Ymain / 2);
3234 im->xOriginTitle = im->ximg / 2;
3235 im->yOriginTitle = 0;
3237 im->xOriginLegend = 0;
3238 im->yOriginLegend = Ytitle + Ymain + Yxlabel;
3240 im->xOriginLegendY = 0;
3241 im->yOriginLegendY = Ytitle + (Ymain / 2);
3243 im->xorigin = Xvertical + Xylabel;
3244 im->yorigin = Ytitle + Ymain;
3246 im->xOriginLegendY2 = Xvertical + Xylabel + Xmain;
3247 if (im->second_axis_scale != 0){
3248 im->xOriginLegendY2 += Xylabel;
3250 im->yOriginLegendY2 = Ytitle + (Ymain / 2);
3255 im->xOriginTitle = im->xsize / 2;
3256 im->yOriginTitle = 0;
3258 im->xOriginLegend = Xvertical + Xylabel + Xmain + Xvertical2;
3259 if (im->second_axis_scale != 0){
3260 im->xOriginLegend += Xylabel;
3262 im->yOriginLegend = Ytitle;
3264 im->xOriginLegendY = 0;
3265 im->yOriginLegendY = Ytitle + (Ymain / 2);
3267 im->xorigin = Xvertical + Xylabel;
3268 im->yorigin = Ytitle + Ymain;
3270 im->xOriginLegendY2 = Xvertical + Xylabel + Xmain;
3271 if (im->second_axis_scale != 0){
3272 im->xOriginLegendY2 += Xylabel;
3274 im->yOriginLegendY2 = Ytitle + (Ymain / 2);
3276 if (!(im->extra_flags & NO_RRDTOOL_TAG)){
3277 im->xOriginTitle += Xspacing;
3278 im->xOriginLegend += Xspacing;
3279 im->xOriginLegendY += Xspacing;
3280 im->xorigin += Xspacing;
3281 im->xOriginLegendY2 += Xspacing;
3291 static cairo_status_t cairo_output(
3295 unsigned int length)
3297 image_desc_t *im = (image_desc_t*)closure;
3299 im->rendered_image =
3300 (unsigned char*)realloc(im->rendered_image, im->rendered_image_size + length);
3301 if (im->rendered_image == NULL)
3302 return CAIRO_STATUS_WRITE_ERROR;
3303 memcpy(im->rendered_image + im->rendered_image_size, data, length);
3304 im->rendered_image_size += length;
3305 return CAIRO_STATUS_SUCCESS;
3308 /* draw that picture thing ... */
3312 int lazy = lazy_check(im);
3315 /* imgformat XML or higher dispatch to xport
3316 * output format there is selected via graph_type
3318 if (im->imgformat >= IF_XML) {
3319 return rrd_graph_xport(im);
3322 /* pull the data from the rrd files ... */
3323 if (data_fetch(im) == -1)
3325 /* evaluate VDEF and CDEF operations ... */
3326 if (data_calc(im) == -1)
3328 /* calculate and PRINT and GPRINT definitions. We have to do it at
3329 * this point because it will affect the length of the legends
3330 * if there are no graph elements (i==0) we stop here ...
3331 * if we are lazy, try to quit ...
3333 cnt = print_calc(im);
3337 /* if we want and can be lazy ... quit now */
3341 /* otherwise call graph_paint_timestring */
3342 switch (im->graph_type) {
3344 return graph_paint_timestring(im,lazy,cnt);
3347 return graph_paint_xy(im,lazy,cnt);
3350 /* final return with error*/
3351 rrd_set_error("Graph type %i is not implemented",im->graph_type);
3355 int graph_paint_timestring(
3356 image_desc_t *im, int lazy, int cnt)
3359 double areazero = 0.0;
3360 graph_desc_t *lastgdes = NULL;
3363 /**************************************************************
3364 *** Calculating sizes and locations became a bit confusing ***
3365 *** so I moved this into a separate function. ***
3366 **************************************************************/
3367 if (graph_size_location(im, cnt) == -1)
3370 info.u_cnt = im->xorigin;
3371 grinfo_push(im, sprintf_alloc("graph_left"), RD_I_CNT, info);
3372 info.u_cnt = im->yorigin - im->ysize;
3373 grinfo_push(im, sprintf_alloc("graph_top"), RD_I_CNT, info);
3374 info.u_cnt = im->xsize;
3375 grinfo_push(im, sprintf_alloc("graph_width"), RD_I_CNT, info);
3376 info.u_cnt = im->ysize;
3377 grinfo_push(im, sprintf_alloc("graph_height"), RD_I_CNT, info);
3378 info.u_cnt = im->ximg;
3379 grinfo_push(im, sprintf_alloc("image_width"), RD_I_CNT, info);
3380 info.u_cnt = im->yimg;
3381 grinfo_push(im, sprintf_alloc("image_height"), RD_I_CNT, info);
3382 info.u_cnt = im->start;
3383 grinfo_push(im, sprintf_alloc("graph_start"), RD_I_CNT, info);
3384 info.u_cnt = im->end;
3385 grinfo_push(im, sprintf_alloc("graph_end"), RD_I_CNT, info);
3387 /* if we want and can be lazy ... quit now */
3391 /* get actual drawing data and find min and max values */
3392 if (data_proc(im) == -1)
3394 if (!im->logarithmic) {
3398 /* identify si magnitude Kilo, Mega Giga ? */
3399 if (!im->rigid && !im->logarithmic)
3400 expand_range(im); /* make sure the upper and lower limit are
3403 info.u_val = im->minval;
3404 grinfo_push(im, sprintf_alloc("value_min"), RD_I_VAL, info);
3405 info.u_val = im->maxval;
3406 grinfo_push(im, sprintf_alloc("value_max"), RD_I_VAL, info);
3409 if (!calc_horizontal_grid(im))
3414 apply_gridfit(im); */
3417 if (graph_cairo_setup(im)) { return -1; }
3420 if (im->minval > 0.0)
3421 areazero = im->minval;
3422 if (im->maxval < 0.0)
3423 areazero = im->maxval;
3424 for (i = 0; i < im->gdes_c; i++) {
3425 switch (im->gdes[i].gf) {
3441 for (ii = 0; ii < im->xsize; ii++) {
3442 if (!isnan(im->gdes[i].p_data[ii])
3443 && im->gdes[i].p_data[ii] != 0.0) {
3444 if (im->gdes[i].yrule > 0) {
3451 im->ysize, 1.0, im->gdes[i].col);
3452 } else if (im->gdes[i].yrule < 0) {
3455 im->yorigin - im->ysize - 1.0,
3457 im->yorigin - im->ysize -
3460 im->ysize, 1.0, im->gdes[i].col);
3468 rrd_value_t diffval = im->maxval - im->minval;
3469 rrd_value_t maxlimit = im->maxval + 9 * diffval;
3470 rrd_value_t minlimit = im->minval - 9 * diffval;
3471 for (ii = 0; ii < im->xsize; ii++) {
3472 /* fix data points at oo and -oo */
3473 if (isinf(im->gdes[i].p_data[ii])) {
3474 if (im->gdes[i].p_data[ii] > 0) {
3475 im->gdes[i].p_data[ii] = im->maxval;
3477 im->gdes[i].p_data[ii] = im->minval;
3480 /* some versions of cairo go unstable when trying
3481 to draw way out of the canvas ... lets not even try */
3482 if (im->gdes[i].p_data[ii] > maxlimit) {
3483 im->gdes[i].p_data[ii] = maxlimit;
3485 if (im->gdes[i].p_data[ii] < minlimit) {
3486 im->gdes[i].p_data[ii] = minlimit;
3490 /* *******************************************************
3495 -------|--t-1--t--------------------------------
3497 if we know the value at time t was a then
3498 we draw a square from t-1 to t with the value a.
3500 ********************************************************* */
3501 if (im->gdes[i].col.alpha != 0.0) {
3502 /* GF_LINE and friend */
3503 if (im->gdes[i].gf == GF_LINE) {
3504 double last_y = 0.0;
3508 cairo_new_path(im->cr);
3509 cairo_set_line_width(im->cr, im->gdes[i].linewidth);
3510 if (im->gdes[i].dash) {
3511 cairo_set_dash(im->cr,
3512 im->gdes[i].p_dashes,
3513 im->gdes[i].ndash, im->gdes[i].offset);
3516 for (ii = 1; ii < im->xsize; ii++) {
3517 if (isnan(im->gdes[i].p_data[ii])
3518 || (im->slopemode == 1
3519 && isnan(im->gdes[i].p_data[ii - 1]))) {
3524 last_y = ytr(im, im->gdes[i].p_data[ii]);
3525 if (im->slopemode == 0) {
3526 double x = ii - 1 + im->xorigin;
3529 gfx_line_fit(im, &x, &y);
3530 cairo_move_to(im->cr, x, y);
3531 x = ii + im->xorigin;
3533 gfx_line_fit(im, &x, &y);
3534 cairo_line_to(im->cr, x, y);
3536 double x = ii - 1 + im->xorigin;
3538 ytr(im, im->gdes[i].p_data[ii - 1]);
3539 gfx_line_fit(im, &x, &y);
3540 cairo_move_to(im->cr, x, y);
3541 x = ii + im->xorigin;
3543 gfx_line_fit(im, &x, &y);
3544 cairo_line_to(im->cr, x, y);
3548 double x1 = ii + im->xorigin;
3549 double y1 = ytr(im, im->gdes[i].p_data[ii]);
3551 if (im->slopemode == 0
3552 && !AlmostEqual2sComplement(y1, last_y, 4)) {
3553 double x = ii - 1 + im->xorigin;
3556 gfx_line_fit(im, &x, &y);
3557 cairo_line_to(im->cr, x, y);
3560 gfx_line_fit(im, &x1, &y1);
3561 cairo_line_to(im->cr, x1, y1);
3564 cairo_set_source_rgba(im->cr,
3570 col.blue, im->gdes[i].col.alpha);
3571 cairo_set_line_cap(im->cr, CAIRO_LINE_CAP_ROUND);
3572 cairo_set_line_join(im->cr, CAIRO_LINE_JOIN_ROUND);
3573 cairo_stroke(im->cr);
3574 cairo_restore(im->cr);
3580 (double *) malloc(sizeof(double) * im->xsize * 2);
3582 (double *) malloc(sizeof(double) * im->xsize * 2);
3584 (double *) malloc(sizeof(double) * im->xsize * 2);
3586 (double *) malloc(sizeof(double) * im->xsize * 2);
3589 for (ii = 0; ii <= im->xsize; ii++) {
3592 if (idxI > 0 && (drawem != 0 || ii == im->xsize)) {
3598 AlmostEqual2sComplement(foreY
3602 AlmostEqual2sComplement(foreY
3608 if (im->gdes[i].gf != GF_GRAD) {
3613 foreY[cntI], im->gdes[i].col);
3615 lastx = foreX[cntI];
3616 lasty = foreY[cntI];
3618 while (cntI < idxI) {
3623 AlmostEqual2sComplement(foreY
3627 AlmostEqual2sComplement(foreY
3634 if (im->gdes[i].gf != GF_GRAD) {
3635 gfx_add_point(im, foreX[cntI], foreY[cntI]);
3637 gfx_add_rect_fadey(im,
3639 foreX[cntI], foreY[cntI], lasty,
3642 im->gdes[i].gradheight
3644 lastx = foreX[cntI];
3645 lasty = foreY[cntI];
3648 if (im->gdes[i].gf != GF_GRAD) {
3649 gfx_add_point(im, backX[idxI], backY[idxI]);
3651 gfx_add_rect_fadey(im,
3653 backX[idxI], backY[idxI], lasty,
3656 im->gdes[i].gradheight);
3657 lastx = backX[idxI];
3658 lasty = backY[idxI];
3665 AlmostEqual2sComplement(backY
3669 AlmostEqual2sComplement(backY
3676 if (im->gdes[i].gf != GF_GRAD) {
3677 gfx_add_point(im, backX[idxI], backY[idxI]);
3679 gfx_add_rect_fadey(im,
3681 backX[idxI], backY[idxI], lasty,
3684 im->gdes[i].gradheight);
3685 lastx = backX[idxI];
3686 lasty = backY[idxI];
3691 if (im->gdes[i].gf != GF_GRAD)
3698 if (ii == im->xsize)
3700 if (im->slopemode == 0 && ii == 0) {
3703 if (isnan(im->gdes[i].p_data[ii])) {
3707 ytop = ytr(im, im->gdes[i].p_data[ii]);
3708 if (lastgdes && im->gdes[i].stack) {
3709 ybase = ytr(im, lastgdes->p_data[ii]);
3711 ybase = ytr(im, areazero);
3713 if (ybase == ytop) {
3719 double extra = ytop;
3724 if (im->slopemode == 0) {
3725 backY[++idxI] = ybase - 0.2;
3726 backX[idxI] = ii + im->xorigin - 1;
3727 foreY[idxI] = ytop + 0.2;
3728 foreX[idxI] = ii + im->xorigin - 1;
3730 backY[++idxI] = ybase - 0.2;
3731 backX[idxI] = ii + im->xorigin;
3732 foreY[idxI] = ytop + 0.2;
3733 foreX[idxI] = ii + im->xorigin;
3735 /* close up any remaining area */
3740 } /* else GF_LINE */
3742 /* if color != 0x0 */
3743 /* make sure we do not run into trouble when stacking on NaN */
3744 for (ii = 0; ii < im->xsize; ii++) {
3745 if (isnan(im->gdes[i].p_data[ii])) {
3746 if (lastgdes && (im->gdes[i].stack)) {
3747 im->gdes[i].p_data[ii] = lastgdes->p_data[ii];
3749 im->gdes[i].p_data[ii] = areazero;
3753 lastgdes = &(im->gdes[i]);
3755 } /* GF_AREA, GF_LINE, GF_GRAD */
3758 ("STACK should already be turned into LINE or AREA here");
3763 cairo_reset_clip(im->cr);
3765 /* grid_paint also does the text */
3766 if (!(im->extra_flags & ONLY_GRAPH))
3768 if (!(im->extra_flags & ONLY_GRAPH))
3770 /* the RULES are the last thing to paint ... */
3771 for (i = 0; i < im->gdes_c; i++) {
3773 switch (im->gdes[i].gf) {
3775 if (im->gdes[i].yrule >= im->minval
3776 && im->gdes[i].yrule <= im->maxval) {
3778 if (im->gdes[i].dash) {
3779 cairo_set_dash(im->cr,
3780 im->gdes[i].p_dashes,
3781 im->gdes[i].ndash, im->gdes[i].offset);
3783 gfx_line(im, im->xorigin,
3784 ytr(im, im->gdes[i].yrule),
3785 im->xorigin + im->xsize,
3786 ytr(im, im->gdes[i].yrule), 1.0, im->gdes[i].col);
3787 cairo_stroke(im->cr);
3788 cairo_restore(im->cr);
3792 if (im->gdes[i].xrule >= im->start
3793 && im->gdes[i].xrule <= im->end) {
3795 if (im->gdes[i].dash) {
3796 cairo_set_dash(im->cr,
3797 im->gdes[i].p_dashes,
3798 im->gdes[i].ndash, im->gdes[i].offset);
3801 xtr(im, im->gdes[i].xrule),
3802 im->yorigin, xtr(im,
3806 im->yorigin - im->ysize, 1.0, im->gdes[i].col);
3807 cairo_stroke(im->cr);
3808 cairo_restore(im->cr);
3815 /* close the graph via cairo*/
3816 return graph_cairo_finish(im);
3819 int graph_cairo_setup (image_desc_t *im)
3821 /* the actual graph is created by going through the individual
3822 graph elements and then drawing them */
3823 cairo_surface_destroy(im->surface);
3824 switch (im->imgformat) {
3827 cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
3828 im->ximg * im->zoom,
3829 im->yimg * im->zoom);
3833 im->surface = strlen(im->graphfile)
3834 ? cairo_pdf_surface_create(im->graphfile, im->ximg * im->zoom,
3835 im->yimg * im->zoom)
3836 : cairo_pdf_surface_create_for_stream
3837 (&cairo_output, im, im->ximg * im->zoom, im->yimg * im->zoom);
3841 im->surface = strlen(im->graphfile)
3843 cairo_ps_surface_create(im->graphfile, im->ximg * im->zoom,
3844 im->yimg * im->zoom)
3845 : cairo_ps_surface_create_for_stream
3846 (&cairo_output, im, im->ximg * im->zoom, im->yimg * im->zoom);
3850 im->surface = strlen(im->graphfile)
3852 cairo_svg_surface_create(im->
3854 im->ximg * im->zoom, im->yimg * im->zoom)
3855 : cairo_svg_surface_create_for_stream
3856 (&cairo_output, im, im->ximg * im->zoom, im->yimg * im->zoom);
3857 cairo_svg_surface_restrict_to_version
3858 (im->surface, CAIRO_SVG_VERSION_1_1);
3869 cairo_destroy(im->cr);
3870 im->cr = cairo_create(im->surface);
3871 cairo_set_antialias(im->cr, im->graph_antialias);
3872 cairo_scale(im->cr, im->zoom, im->zoom);
3873 // pango_cairo_font_map_set_resolution(PANGO_CAIRO_FONT_MAP(font_map), 100);
3874 gfx_new_area(im, 0, 0, 0, im->yimg,
3875 im->ximg, im->yimg, im->graph_col[GRC_BACK]);
3876 gfx_add_point(im, im->ximg, 0);
3878 gfx_new_area(im, im->xorigin,
3881 im->xsize, im->yorigin,
3884 im->yorigin - im->ysize, im->graph_col[GRC_CANVAS]);
3885 gfx_add_point(im, im->xorigin, im->yorigin - im->ysize);
3887 cairo_rectangle(im->cr, im->xorigin, im->yorigin - im->ysize - 1.0,
3888 im->xsize, im->ysize + 2.0);
3893 int graph_cairo_finish (image_desc_t *im)
3896 switch (im->imgformat) {
3899 cairo_status_t status;
3901 status = strlen(im->graphfile) ?
3902 cairo_surface_write_to_png(im->surface, im->graphfile)
3903 : cairo_surface_write_to_png_stream(im->surface, &cairo_output,
3906 if (status != CAIRO_STATUS_SUCCESS) {
3907 rrd_set_error("Could not save png to '%s'", im->graphfile);
3921 if (strlen(im->graphfile)) {
3922 cairo_show_page(im->cr);
3924 cairo_surface_finish(im->surface);
3933 image_desc_t *im, int lazy, int cnt)
3935 /* to stop compiler warnings for now */
3936 lazy=cnt=(int)im->gdes_c;
3937 rrd_set_error("XY diagramm not implemented");
3941 /*****************************************************
3943 *****************************************************/
3950 if ((im->gdes = (graph_desc_t *)
3951 rrd_realloc(im->gdes, (im->gdes_c)
3952 * sizeof(graph_desc_t))) == NULL) {
3953 rrd_set_error("realloc graph_descs");
3958 memset(&(im->gdes[im->gdes_c - 1]),0,sizeof(graph_desc_t));
3960 im->gdes[im->gdes_c - 1].step = im->step;
3961 im->gdes[im->gdes_c - 1].step_orig = im->step;
3962 im->gdes[im->gdes_c - 1].stack = 0;
3963 im->gdes[im->gdes_c - 1].linewidth = 0;
3964 im->gdes[im->gdes_c - 1].debug = 0;
3965 im->gdes[im->gdes_c - 1].start = im->start;
3966 im->gdes[im->gdes_c - 1].start_orig = im->start;
3967 im->gdes[im->gdes_c - 1].end = im->end;
3968 im->gdes[im->gdes_c - 1].end_orig = im->end;
3969 im->gdes[im->gdes_c - 1].vname[0] = '\0';
3970 im->gdes[im->gdes_c - 1].data = NULL;
3971 im->gdes[im->gdes_c - 1].ds_namv = NULL;
3972 im->gdes[im->gdes_c - 1].data_first = 0;
3973 im->gdes[im->gdes_c - 1].p_data = NULL;
3974 im->gdes[im->gdes_c - 1].rpnp = NULL;
3975 im->gdes[im->gdes_c - 1].p_dashes = NULL;
3976 im->gdes[im->gdes_c - 1].shift = 0.0;
3977 im->gdes[im->gdes_c - 1].dash = 0;
3978 im->gdes[im->gdes_c - 1].ndash = 0;
3979 im->gdes[im->gdes_c - 1].offset = 0;
3980 im->gdes[im->gdes_c - 1].col.red = 0.0;
3981 im->gdes[im->gdes_c - 1].col.green = 0.0;
3982 im->gdes[im->gdes_c - 1].col.blue = 0.0;
3983 im->gdes[im->gdes_c - 1].col.alpha = 0.0;
3984 im->gdes[im->gdes_c - 1].col2.red = 0.0;
3985 im->gdes[im->gdes_c - 1].col2.green = 0.0;
3986 im->gdes[im->gdes_c - 1].col2.blue = 0.0;
3987 im->gdes[im->gdes_c - 1].col2.alpha = 0.0;
3988 im->gdes[im->gdes_c - 1].gradheight = 50.0;
3989 im->gdes[im->gdes_c - 1].legend[0] = '\0';
3990 im->gdes[im->gdes_c - 1].format[0] = '\0';
3991 im->gdes[im->gdes_c - 1].strftm = 0;
3992 im->gdes[im->gdes_c - 1].rrd[0] = '\0';
3993 im->gdes[im->gdes_c - 1].ds = -1;
3994 im->gdes[im->gdes_c - 1].cf_reduce = CF_AVERAGE;
3995 im->gdes[im->gdes_c - 1].cf = CF_AVERAGE;
3996 im->gdes[im->gdes_c - 1].yrule = DNAN;
3997 im->gdes[im->gdes_c - 1].xrule = 0;
3998 im->gdes[im->gdes_c - 1].daemon[0] = 0;
4002 /* copies input untill the first unescaped colon is found
4003 or until input ends. backslashes have to be escaped as well */
4005 const char *const input,
4011 for (inp = 0; inp < len && input[inp] != ':' && input[inp] != '\0'; inp++) {
4012 if (input[inp] == '\\'
4013 && input[inp + 1] != '\0'
4014 && (input[inp + 1] == '\\' || input[inp + 1] == ':')) {
4015 output[outp++] = input[++inp];
4017 output[outp++] = input[inp];
4020 output[outp] = '\0';
4024 /* Now just a wrapper around rrd_graph_v */
4036 rrd_info_t *grinfo = NULL;
4039 grinfo = rrd_graph_v(argc, argv);
4045 if (strcmp(walker->key, "image_info") == 0) {
4048 (char**)rrd_realloc((*prdata),
4049 (prlines + 1) * sizeof(char *))) == NULL) {
4050 rrd_set_error("realloc prdata");
4053 /* imginfo goes to position 0 in the prdata array */
4054 (*prdata)[prlines - 1] = (char*)malloc((strlen(walker->value.u_str)
4055 + 2) * sizeof(char));
4056 strcpy((*prdata)[prlines - 1], walker->value.u_str);
4057 (*prdata)[prlines] = NULL;
4059 /* skip anything else */
4060 walker = walker->next;
4068 if (strcmp(walker->key, "image_width") == 0) {
4069 *xsize = walker->value.u_cnt;
4070 } else if (strcmp(walker->key, "image_height") == 0) {
4071 *ysize = walker->value.u_cnt;
4072 } else if (strcmp(walker->key, "value_min") == 0) {
4073 *ymin = walker->value.u_val;
4074 } else if (strcmp(walker->key, "value_max") == 0) {
4075 *ymax = walker->value.u_val;
4076 } else if (strncmp(walker->key, "print", 5) == 0) { /* keys are prdate[0..] */
4079 (char**)rrd_realloc((*prdata),
4080 (prlines + 1) * sizeof(char *))) == NULL) {
4081 rrd_set_error("realloc prdata");
4084 (*prdata)[prlines - 1] = (char*)malloc((strlen(walker->value.u_str)
4085 + 2) * sizeof(char));
4086 (*prdata)[prlines] = NULL;
4087 strcpy((*prdata)[prlines - 1], walker->value.u_str);
4088 } else if (strcmp(walker->key, "image") == 0) {
4089 if ( fwrite(walker->value.u_blo.ptr, walker->value.u_blo.size, 1,
4090 (stream ? stream : stdout)) == 0 && ferror(stream ? stream : stdout)){
4091 rrd_set_error("writing image");
4095 /* skip anything else */
4096 walker = walker->next;
4098 rrd_info_free(grinfo);
4103 /* Some surgery done on this function, it became ridiculously big.
4105 ** - initializing now in rrd_graph_init()
4106 ** - options parsing now in rrd_graph_options()
4107 ** - script parsing now in rrd_graph_script()
4110 rrd_info_t *rrd_graph_v(
4117 rrd_graph_init(&im);
4118 /* a dummy surface so that we can measure text sizes for placements */
4119 old_locale = setlocale(LC_NUMERIC, NULL);
4120 setlocale(LC_NUMERIC, "C");
4121 rrd_graph_options(argc, argv, &im);
4122 if (rrd_test_error()) {
4123 setlocale(LC_NUMERIC, old_locale); /* reenable locale */
4124 rrd_info_free(im.grinfo);
4129 if (optind >= argc) {
4130 setlocale(LC_NUMERIC, old_locale); /* reenable locale */
4131 rrd_info_free(im.grinfo);
4133 rrd_set_error("missing filename");
4137 if (strlen(argv[optind]) >= MAXPATH) {
4138 setlocale(LC_NUMERIC, old_locale); /* reenable locale */
4139 rrd_set_error("filename (including path) too long");
4140 rrd_info_free(im.grinfo);
4145 strncpy(im.graphfile, argv[optind], MAXPATH - 1);
4146 im.graphfile[MAXPATH - 1] = '\0';
4148 if (strcmp(im.graphfile, "-") == 0) {
4149 im.graphfile[0] = '\0';
4152 rrd_graph_script(argc, argv, &im, 1);
4153 setlocale(LC_NUMERIC, old_locale); /* reenable locale for rendering the graph */
4155 if (rrd_test_error()) {
4156 rrd_info_free(im.grinfo);
4161 /* Everything is now read and the actual work can start */
4162 if (graph_paint(&im) == -1) {
4163 rrd_info_free(im.grinfo);
4168 /* The image is generated and needs to be output.
4169 ** Also, if needed, print a line with information about the image.
4177 path = strdup(im.graphfile);
4178 filename = basename(path);
4180 sprintf_alloc(im.imginfo,
4183 im.ximg), (long) (im.zoom * im.yimg));
4184 grinfo_push(&im, sprintf_alloc("image_info"), RD_I_STR, info);
4188 if (im.rendered_image) {
4191 img.u_blo.size = im.rendered_image_size;
4192 img.u_blo.ptr = im.rendered_image;
4193 grinfo_push(&im, sprintf_alloc("image"), RD_I_BLO, img);
4202 image_desc_t *im,int prop,char *font, double size ){
4204 strncpy(im->text_prop[prop].font, font, sizeof(text_prop[prop].font) - 1);
4205 im->text_prop[prop].font[sizeof(text_prop[prop].font) - 1] = '\0';
4206 /* if we already got one, drop it first */
4207 pango_font_description_free(im->text_prop[prop].font_desc);
4208 im->text_prop[prop].font_desc = pango_font_description_from_string( font );
4211 im->text_prop[prop].size = size;
4213 if (im->text_prop[prop].font_desc && im->text_prop[prop].size ){
4214 pango_font_description_set_size(im->text_prop[prop].font_desc, im->text_prop[prop].size * PANGO_SCALE);
4218 void rrd_graph_init(
4223 char *deffont = getenv("RRD_DEFAULT_FONT");
4224 static PangoFontMap *fontmap = NULL;
4225 PangoContext *context;
4227 /* zero the whole structure first */
4228 memset(im,0,sizeof(image_desc_t));
4233 im->graph_type = GTYPE_TIME;
4235 im->daemon_addr = NULL;
4236 im->draw_x_grid = 1;
4237 im->draw_y_grid = 1;
4238 im->draw_3d_border = 2;
4239 im->dynamic_labels = 0;
4240 im->extra_flags = 0;
4241 im->font_options = cairo_font_options_create();
4242 im->forceleftspace = 0;
4245 im->graph_antialias = CAIRO_ANTIALIAS_GRAY;
4246 im->grid_dash_off = 1;
4247 im->grid_dash_on = 1;
4249 im->grinfo = (rrd_info_t *) NULL;
4250 im->grinfo_current = (rrd_info_t *) NULL;
4251 im->imgformat = IF_PNG;
4254 im->legenddirection = TOP_DOWN;
4255 im->legendheight = 0;
4256 im->legendposition = SOUTH;
4257 im->legendwidth = 0;
4258 im->logarithmic = 0;
4265 im->rendered_image_size = 0;
4266 im->rendered_image = NULL;
4270 im->tabwidth = 40.0;
4271 im->title[0] = '\0';
4272 im->unitsexponent = 9999;
4273 im->unitslength = 6;
4274 im->viewfactor = 1.0;
4275 im->watermark[0] = '\0';
4276 im->with_markup = 0;
4278 im->xlab_user.minsec = -1;
4280 im->xOriginLegend = 0;
4281 im->xOriginLegendY = 0;
4282 im->xOriginLegendY2 = 0;
4283 im->xOriginTitle = 0;
4285 im->ygridstep = DNAN;
4287 im->ylegend[0] = '\0';
4288 im->second_axis_scale = 0; /* 0 disables it */
4289 im->second_axis_shift = 0; /* no shift by default */
4290 im->second_axis_legend[0] = '\0';
4291 im->second_axis_format[0] = '\0';
4293 im->yOriginLegend = 0;
4294 im->yOriginLegendY = 0;
4295 im->yOriginLegendY2 = 0;
4296 im->yOriginTitle = 0;
4300 im->surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 10, 10);
4301 im->cr = cairo_create(im->surface);
4303 for (i = 0; i < DIM(text_prop); i++) {
4304 im->text_prop[i].size = -1;
4305 im->text_prop[i].font_desc = NULL;
4306 rrd_set_font_desc(im,i, deffont ? deffont : text_prop[i].font,text_prop[i].size);
4309 if (fontmap == NULL){
4310 fontmap = pango_cairo_font_map_get_default();
4313 context = pango_cairo_font_map_create_context((PangoCairoFontMap*)fontmap);
4315 pango_cairo_context_set_resolution(context, 100);
4317 pango_cairo_update_context(im->cr,context);
4319 im->layout = pango_layout_new(context);
4320 g_object_unref (context);
4322 // im->layout = pango_cairo_create_layout(im->cr);
4325 cairo_font_options_set_hint_style
4326 (im->font_options, CAIRO_HINT_STYLE_FULL);
4327 cairo_font_options_set_hint_metrics
4328 (im->font_options, CAIRO_HINT_METRICS_ON);
4329 cairo_font_options_set_antialias(im->font_options, CAIRO_ANTIALIAS_GRAY);
4333 for (i = 0; i < DIM(graph_col); i++)
4334 im->graph_col[i] = graph_col[i];
4340 void rrd_graph_options(
4347 char *parsetime_error = NULL;
4348 char scan_gtm[12], scan_mtm[12], scan_ltm[12], col_nam[12];
4349 time_t start_tmp = 0, end_tmp = 0;
4351 rrd_time_value_t start_tv, end_tv;
4352 long unsigned int color;
4354 /* defines for long options without a short equivalent. should be bytes,
4355 and may not collide with (the ASCII value of) short options */
4356 #define LONGOPT_UNITS_SI 255
4359 struct option long_options[] = {
4360 { "alt-autoscale", no_argument, 0, 'A'},
4361 { "imgformat", required_argument, 0, 'a'},
4362 { "font-smoothing-threshold", required_argument, 0, 'B'},
4363 { "base", required_argument, 0, 'b'},
4364 { "color", required_argument, 0, 'c'},
4365 { "full-size-mode", no_argument, 0, 'D'},
4366 { "daemon", required_argument, 0, 'd'},
4367 { "slope-mode", no_argument, 0, 'E'},
4368 { "end", required_argument, 0, 'e'},
4369 { "force-rules-legend", no_argument, 0, 'F'},
4370 { "imginfo", required_argument, 0, 'f'},
4371 { "graph-render-mode", required_argument, 0, 'G'},
4372 { "no-legend", no_argument, 0, 'g'},
4373 { "height", required_argument, 0, 'h'},
4374 { "no-minor", no_argument, 0, 'I'},
4375 { "interlaced", no_argument, 0, 'i'},
4376 { "alt-autoscale-min", no_argument, 0, 'J'},
4377 { "only-graph", no_argument, 0, 'j'},
4378 { "units-length", required_argument, 0, 'L'},
4379 { "lower-limit", required_argument, 0, 'l'},
4380 { "alt-autoscale-max", no_argument, 0, 'M'},
4381 { "zoom", required_argument, 0, 'm'},
4382 { "no-gridfit", no_argument, 0, 'N'},
4383 { "font", required_argument, 0, 'n'},
4384 { "logarithmic", no_argument, 0, 'o'},
4385 { "pango-markup", no_argument, 0, 'P'},
4386 { "font-render-mode", required_argument, 0, 'R'},
4387 { "rigid", no_argument, 0, 'r'},
4388 { "step", required_argument, 0, 'S'},
4389 { "start", required_argument, 0, 's'},
4390 { "tabwidth", required_argument, 0, 'T'},
4391 { "title", required_argument, 0, 't'},
4392 { "upper-limit", required_argument, 0, 'u'},
4393 { "vertical-label", required_argument, 0, 'v'},
4394 { "watermark", required_argument, 0, 'W'},
4395 { "width", required_argument, 0, 'w'},
4396 { "units-exponent", required_argument, 0, 'X'},
4397 { "x-grid", required_argument, 0, 'x'},
4398 { "alt-y-grid", no_argument, 0, 'Y'},
4399 { "y-grid", required_argument, 0, 'y'},
4400 { "lazy", no_argument, 0, 'z'},
4401 { "units", required_argument, 0, LONGOPT_UNITS_SI},
4402 { "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 */
4403 { "disable-rrdtool-tag",no_argument, 0, 1001},
4404 { "right-axis", required_argument, 0, 1002},
4405 { "right-axis-label", required_argument, 0, 1003},
4406 { "right-axis-format", required_argument, 0, 1004},
4407 { "legend-position", required_argument, 0, 1005},
4408 { "legend-direction", required_argument, 0, 1006},
4409 { "border", required_argument, 0, 1007},
4410 { "grid-dash", required_argument, 0, 1008},
4411 { "dynamic-labels", no_argument, 0, 1009},
4412 { "week-fmt", required_argument, 0, 1010},
4413 { "graph-type", required_argument, 0, 1011},
4419 opterr = 0; /* initialize getopt */
4420 rrd_parsetime("end-24h", &start_tv);
4421 rrd_parsetime("now", &end_tv);
4423 int option_index = 0;
4425 int col_start, col_end;
4427 opt = getopt_long(argc, argv,
4428 "Aa:B:b:c:Dd:Ee:Ff:G:gh:IiJjL:l:Mm:Nn:oPR:rS:s:T:t:u:v:W:w:X:x:Yy:z",
4429 long_options, &option_index);
4434 im->extra_flags |= NOMINOR;
4437 im->extra_flags |= ALTYGRID;
4440 im->extra_flags |= ALTAUTOSCALE;
4443 im->extra_flags |= ALTAUTOSCALE_MIN;
4446 im->extra_flags |= ALTAUTOSCALE_MAX;
4449 im->extra_flags |= ONLY_GRAPH;
4452 im->extra_flags |= NOLEGEND;
4455 if (strcmp(optarg, "north") == 0) {
4456 im->legendposition = NORTH;
4457 } else if (strcmp(optarg, "west") == 0) {
4458 im->legendposition = WEST;
4459 } else if (strcmp(optarg, "south") == 0) {
4460 im->legendposition = SOUTH;
4461 } else if (strcmp(optarg, "east") == 0) {
4462 im->legendposition = EAST;
4464 rrd_set_error("unknown legend-position '%s'", optarg);
4469 if (strcmp(optarg, "topdown") == 0) {
4470 im->legenddirection = TOP_DOWN;
4471 } else if (strcmp(optarg, "bottomup") == 0) {
4472 im->legenddirection = BOTTOM_UP;
4474 rrd_set_error("unknown legend-position '%s'", optarg);
4479 im->extra_flags |= FORCE_RULES_LEGEND;
4482 im->extra_flags |= NO_RRDTOOL_TAG;
4484 case LONGOPT_UNITS_SI:
4485 if (im->extra_flags & FORCE_UNITS) {
4486 rrd_set_error("--units can only be used once!");
4489 if (strcmp(optarg, "si") == 0)
4490 im->extra_flags |= FORCE_UNITS_SI;
4492 rrd_set_error("invalid argument for --units: %s", optarg);
4497 im->unitsexponent = atoi(optarg);
4500 im->unitslength = atoi(optarg);
4501 im->forceleftspace = 1;
4504 im->tabwidth = atof(optarg);
4507 im->step = atoi(optarg);
4513 im->with_markup = 1;
4516 if ((parsetime_error = rrd_parsetime(optarg, &start_tv))) {
4517 rrd_set_error("start time: %s", parsetime_error);
4522 if ((parsetime_error = rrd_parsetime(optarg, &end_tv))) {
4523 rrd_set_error("end time: %s", parsetime_error);
4528 if (strcmp(optarg, "none") == 0) {
4529 im->draw_x_grid = 0;
4533 "%10[A-Z]:%ld:%10[A-Z]:%ld:%10[A-Z]:%ld:%ld:%n",
4535 &im->xlab_user.gridst,
4537 &im->xlab_user.mgridst,
4539 &im->xlab_user.labst,
4540 &im->xlab_user.precis, &stroff) == 7 && stroff != 0) {
4541 strncpy(im->xlab_form, optarg + stroff,
4542 sizeof(im->xlab_form) - 1);
4543 im->xlab_form[sizeof(im->xlab_form) - 1] = '\0';
4545 (im->xlab_user.gridtm = tmt_conv(scan_gtm)) == -1) {
4546 rrd_set_error("unknown keyword %s", scan_gtm);
4549 (im->xlab_user.mgridtm = tmt_conv(scan_mtm))
4551 rrd_set_error("unknown keyword %s", scan_mtm);
4554 (im->xlab_user.labtm = tmt_conv(scan_ltm)) == -1) {
4555 rrd_set_error("unknown keyword %s", scan_ltm);
4558 im->xlab_user.minsec = 1;
4559 im->xlab_user.stst = im->xlab_form;
4561 rrd_set_error("invalid x-grid format");
4567 if (strcmp(optarg, "none") == 0) {
4568 im->draw_y_grid = 0;
4571 if (sscanf(optarg, "%lf:%d", &im->ygridstep, &im->ylabfact) == 2) {
4572 if (im->ygridstep <= 0) {
4573 rrd_set_error("grid step must be > 0");
4575 } else if (im->ylabfact < 1) {
4576 rrd_set_error("label factor must be > 0");
4580 rrd_set_error("invalid y-grid format");
4585 im->draw_3d_border = atoi(optarg);
4587 case 1008: /* grid-dash */
4591 &im->grid_dash_off) != 2) {
4592 rrd_set_error("expected grid-dash format float:float");
4596 case 1009: /* enable dynamic labels */
4597 im->dynamic_labels = 1;
4600 strncpy(week_fmt,optarg,sizeof week_fmt);
4601 week_fmt[(sizeof week_fmt)-1]='\0';
4603 case 1002: /* right y axis */
4607 &im->second_axis_scale,
4608 &im->second_axis_shift) == 2) {
4609 if(im->second_axis_scale==0){
4610 rrd_set_error("the second_axis_scale must not be 0");
4614 rrd_set_error("invalid right-axis format expected scale:shift");
4619 strncpy(im->second_axis_legend,optarg,150);
4620 im->second_axis_legend[150]='\0';
4623 if (bad_format(optarg)){
4624 rrd_set_error("use either %le or %lf formats");
4627 strncpy(im->second_axis_format,optarg,150);
4628 im->second_axis_format[150]='\0';
4631 strncpy(im->ylegend, optarg, 150);
4632 im->ylegend[150] = '\0';
4635 im->maxval = atof(optarg);
4638 im->minval = atof(optarg);
4641 im->base = atol(optarg);
4642 if (im->base != 1024 && im->base != 1000) {
4644 ("the only sensible value for base apart from 1000 is 1024");
4649 long_tmp = atol(optarg);
4650 if (long_tmp < 10) {
4651 rrd_set_error("width below 10 pixels");
4654 im->xsize = long_tmp;
4657 long_tmp = atol(optarg);
4658 if (long_tmp < 10) {
4659 rrd_set_error("height below 10 pixels");
4662 im->ysize = long_tmp;
4665 im->extra_flags |= FULL_SIZE_MODE;
4668 /* interlaced png not supported at the moment */
4674 im->imginfo = optarg;
4678 (im->imgformat = if_conv(optarg)) == -1) {
4679 rrd_set_error("unsupported graphics format '%s'", optarg);
4685 (im->graph_type = type_conv(optarg)) == -1) {
4686 rrd_set_error("unsupported graphics type '%s'", optarg);
4697 im->logarithmic = 1;
4701 "%10[A-Z]#%n%8lx%n",
4702 col_nam, &col_start, &color, &col_end) == 2) {
4704 int col_len = col_end - col_start;
4709 (((color & 0xF00) * 0x110000) | ((color & 0x0F0) *
4717 (((color & 0xF000) *
4718 0x11000) | ((color & 0x0F00) *
4719 0x01100) | ((color &
4722 ((color & 0x000F) * 0x00011)
4726 color = (color << 8) + 0xff /* shift left by 8 */ ;
4731 rrd_set_error("the color format is #RRGGBB[AA]");
4734 if ((ci = grc_conv(col_nam)) != -1) {
4735 im->graph_col[ci] = gfx_hex_to_col(color);
4737 rrd_set_error("invalid color name '%s'", col_nam);
4741 rrd_set_error("invalid color def format");
4750 if (sscanf(optarg, "%10[A-Z]:%lf%n", prop, &size, &end) >= 2) {
4751 int sindex, propidx;
4753 if ((sindex = text_prop_conv(prop)) != -1) {
4754 for (propidx = sindex;
4755 propidx < TEXT_PROP_LAST; propidx++) {
4757 rrd_set_font_desc(im,propidx,NULL,size);
4759 if ((int) strlen(optarg) > end+2) {
4760 if (optarg[end] == ':') {
4761 rrd_set_font_desc(im,propidx,optarg + end + 1,0);
4764 ("expected : after font size in '%s'",
4769 /* only run the for loop for DEFAULT (0) for
4770 all others, we break here. woodo programming */
4771 if (propidx == sindex && sindex != 0)
4775 rrd_set_error("invalid fonttag '%s'", prop);
4779 rrd_set_error("invalid text property format");
4785 im->zoom = atof(optarg);
4786 if (im->zoom <= 0.0) {
4787 rrd_set_error("zoom factor must be > 0");
4792 strncpy(im->title, optarg, 150);
4793 im->title[150] = '\0';
4796 if (strcmp(optarg, "normal") == 0) {
4797 cairo_font_options_set_antialias
4798 (im->font_options, CAIRO_ANTIALIAS_GRAY);
4799 cairo_font_options_set_hint_style
4800 (im->font_options, CAIRO_HINT_STYLE_FULL);
4801 } else if (strcmp(optarg, "light") == 0) {
4802 cairo_font_options_set_antialias
4803 (im->font_options, CAIRO_ANTIALIAS_GRAY);
4804 cairo_font_options_set_hint_style
4805 (im->font_options, CAIRO_HINT_STYLE_SLIGHT);
4806 } else if (strcmp(optarg, "mono") == 0) {
4807 cairo_font_options_set_antialias
4808 (im->font_options, CAIRO_ANTIALIAS_NONE);
4809 cairo_font_options_set_hint_style
4810 (im->font_options, CAIRO_HINT_STYLE_FULL);
4812 rrd_set_error("unknown font-render-mode '%s'", optarg);
4817 if (strcmp(optarg, "normal") == 0)
4818 im->graph_antialias = CAIRO_ANTIALIAS_GRAY;
4819 else if (strcmp(optarg, "mono") == 0)
4820 im->graph_antialias = CAIRO_ANTIALIAS_NONE;
4822 rrd_set_error("unknown graph-render-mode '%s'", optarg);
4827 /* not supported curently */
4830 strncpy(im->watermark, optarg, 100);
4831 im->watermark[99] = '\0';
4835 if (im->daemon_addr != NULL)
4837 rrd_set_error ("You cannot specify --daemon "
4842 im->daemon_addr = strdup(optarg);
4843 if (im->daemon_addr == NULL)
4845 rrd_set_error("strdup failed");
4853 rrd_set_error("unknown option '%c'", optopt);
4855 rrd_set_error("unknown option '%s'", argv[optind - 1]);
4860 pango_cairo_context_set_font_options(pango_layout_get_context(im->layout), im->font_options);
4861 pango_layout_context_changed(im->layout);
4865 if (im->logarithmic && im->minval <= 0) {
4867 ("for a logarithmic yaxis you must specify a lower-limit > 0");
4871 if (rrd_proc_start_end(&start_tv, &end_tv, &start_tmp, &end_tmp) == -1) {
4872 /* error string is set in rrd_parsetime.c */
4876 if (start_tmp < 3600 * 24 * 365 * 10) {
4878 ("the first entry to fetch should be after 1980 (%ld)",
4883 if (end_tmp < start_tmp) {
4885 ("start (%ld) should be less than end (%ld)", start_tmp, end_tmp);
4889 im->start = start_tmp;
4891 im->step = max((long) im->step, (im->end - im->start) / im->xsize);
4894 int rrd_graph_color(
4902 graph_desc_t *gdp = &im->gdes[im->gdes_c - 1];
4904 color = strstr(var, "#");
4905 if (color == NULL) {
4906 if (optional == 0) {
4907 rrd_set_error("Found no color in %s", err);
4914 long unsigned int col;
4916 rest = strstr(color, ":");
4923 sscanf(color, "#%6lx%n", &col, &n);
4924 col = (col << 8) + 0xff /* shift left by 8 */ ;
4926 rrd_set_error("Color problem in %s", err);
4929 sscanf(color, "#%8lx%n", &col, &n);
4933 rrd_set_error("Color problem in %s", err);
4935 if (rrd_test_error())
4937 gdp->col = gfx_hex_to_col(col);
4950 while (*ptr != '\0')
4951 if (*ptr++ == '%') {
4953 /* line cannot end with percent char */
4956 /* '%s', '%S' and '%%' are allowed */
4957 if (*ptr == 's' || *ptr == 'S' || *ptr == '%')
4959 /* %c is allowed (but use only with vdef!) */
4960 else if (*ptr == 'c') {
4965 /* or else '% 6.2lf' and such are allowed */
4967 /* optional padding character */
4968 if (*ptr == ' ' || *ptr == '+' || *ptr == '-')
4970 /* This should take care of 'm.n' with all three optional */
4971 while (*ptr >= '0' && *ptr <= '9')
4975 while (*ptr >= '0' && *ptr <= '9')
4977 /* Either 'le', 'lf' or 'lg' must follow here */
4980 if (*ptr == 'e' || *ptr == 'f' || *ptr == 'g')
4995 const char *const str)
4997 /* A VDEF currently is either "func" or "param,func"
4998 * so the parsing is rather simple. Change if needed.
5005 sscanf(str, "%le,%29[A-Z]%n", ¶m, func, &n);
5006 if (n == (int) strlen(str)) { /* matched */
5010 sscanf(str, "%29[A-Z]%n", func, &n);
5011 if (n == (int) strlen(str)) { /* matched */
5015 ("Unknown function string '%s' in VDEF '%s'",
5020 if (!strcmp("PERCENT", func))
5021 gdes->vf.op = VDEF_PERCENT;
5022 else if (!strcmp("PERCENTNAN", func))
5023 gdes->vf.op = VDEF_PERCENTNAN;
5024 else if (!strcmp("MAXIMUM", func))
5025 gdes->vf.op = VDEF_MAXIMUM;
5026 else if (!strcmp("AVERAGE", func))
5027 gdes->vf.op = VDEF_AVERAGE;
5028 else if (!strcmp("STDEV", func))
5029 gdes->vf.op = VDEF_STDEV;
5030 else if (!strcmp("MINIMUM", func))
5031 gdes->vf.op = VDEF_MINIMUM;
5032 else if (!strcmp("TOTAL", func))
5033 gdes->vf.op = VDEF_TOTAL;
5034 else if (!strcmp("FIRST", func))
5035 gdes->vf.op = VDEF_FIRST;
5036 else if (!strcmp("LAST", func))
5037 gdes->vf.op = VDEF_LAST;
5038 else if (!strcmp("LSLSLOPE", func))
5039 gdes->vf.op = VDEF_LSLSLOPE;
5040 else if (!strcmp("LSLINT", func))
5041 gdes->vf.op = VDEF_LSLINT;
5042 else if (!strcmp("LSLCORREL", func))
5043 gdes->vf.op = VDEF_LSLCORREL;
5046 ("Unknown function '%s' in VDEF '%s'\n", func, gdes->vname);
5049 switch (gdes->vf.op) {
5051 case VDEF_PERCENTNAN:
5052 if (isnan(param)) { /* no parameter given */
5054 ("Function '%s' needs parameter in VDEF '%s'\n",
5058 if (param >= 0.0 && param <= 100.0) {
5059 gdes->vf.param = param;
5060 gdes->vf.val = DNAN; /* undefined */
5061 gdes->vf.when = 0; /* undefined */
5065 ("Parameter '%f' out of range in VDEF '%s'\n",
5066 param, gdes->vname);
5079 case VDEF_LSLCORREL:
5081 gdes->vf.param = DNAN;
5082 gdes->vf.val = DNAN;
5087 ("Function '%s' needs no parameter in VDEF '%s'\n",
5101 graph_desc_t *src, *dst;
5105 dst = &im->gdes[gdi];
5106 src = &im->gdes[dst->vidx];
5107 data = src->data + src->ds;
5109 steps = (src->end - src->start) / src->step;
5112 ("DEBUG: start == %lu, end == %lu, %lu steps\n",
5113 src->start, src->end, steps);
5115 switch (dst->vf.op) {
5119 if ((array = (rrd_value_t*)malloc(steps * sizeof(double))) == NULL) {
5120 rrd_set_error("malloc VDEV_PERCENT");
5123 for (step = 0; step < steps; step++) {
5124 array[step] = data[step * src->ds_cnt];
5126 qsort(array, step, sizeof(double), vdef_percent_compar);
5127 field = round((dst->vf.param * (double)(steps - 1)) / 100.0);
5128 dst->vf.val = array[field];
5129 dst->vf.when = 0; /* no time component */
5133 for (step = 0; step < steps; step++)
5134 printf("DEBUG: %3li:%10.2f %c\n",
5135 step, array[step], step == field ? '*' : ' ');
5139 case VDEF_PERCENTNAN:{
5142 /* count number of "valid" values */
5144 for (step = 0; step < steps; step++) {
5145 if (!isnan(data[step * src->ds_cnt])) { nancount++; }
5147 /* and allocate it */
5148 if ((array = (rrd_value_t*)malloc(nancount * sizeof(double))) == NULL) {
5149 rrd_set_error("malloc VDEV_PERCENT");
5152 /* and fill it in */
5154 for (step = 0; step < steps; step++) {
5155 if (!isnan(data[step * src->ds_cnt])) {
5156 array[field] = data[step * src->ds_cnt];
5160 qsort(array, nancount, sizeof(double), vdef_percent_compar);
5161 field = round( dst->vf.param * (double)(nancount - 1) / 100.0);
5162 dst->vf.val = array[field];
5163 dst->vf.when = 0; /* no time component */
5170 while (step != steps && isnan(data[step * src->ds_cnt]))
5172 if (step == steps) {
5177 dst->vf.val = data[step * src->ds_cnt];
5178 dst->vf.when = src->start + (step + 1) * src->step;
5181 while (step != steps) {
5182 if (finite(data[step * src->ds_cnt])) {
5183 if (data[step * src->ds_cnt] > dst->vf.val) {
5184 dst->vf.val = data[step * src->ds_cnt];
5185 dst->vf.when = src->start + (step + 1) * src->step;
5197 double average = 0.0;
5199 for (step = 0; step < steps; step++) {
5200 if (finite(data[step * src->ds_cnt])) {
5201 sum += data[step * src->ds_cnt];
5206 if (dst->vf.op == VDEF_TOTAL) {
5207 dst->vf.val = sum * src->step;
5208 dst->vf.when = 0; /* no time component */
5210 } else if (dst->vf.op == VDEF_AVERAGE) {
5211 dst->vf.val = sum / cnt;
5212 dst->vf.when = 0; /* no time component */
5215 average = sum / cnt;
5217 for (step = 0; step < steps; step++) {
5218 if (finite(data[step * src->ds_cnt])) {
5219 sum += pow((data[step * src->ds_cnt] - average), 2.0);
5222 dst->vf.val = pow(sum / cnt, 0.5);
5223 dst->vf.when = 0; /* no time component */
5235 while (step != steps && isnan(data[step * src->ds_cnt]))
5237 if (step == steps) {
5242 dst->vf.val = data[step * src->ds_cnt];
5243 dst->vf.when = src->start + (step + 1) * src->step;
5246 while (step != steps) {
5247 if (finite(data[step * src->ds_cnt])) {
5248 if (data[step * src->ds_cnt] < dst->vf.val) {
5249 dst->vf.val = data[step * src->ds_cnt];
5250 dst->vf.when = src->start + (step + 1) * src->step;
5258 /* The time value returned here is one step before the
5259 * actual time value. This is the start of the first
5263 while (step != steps && isnan(data[step * src->ds_cnt]))
5265 if (step == steps) { /* all entries were NaN */
5270 dst->vf.val = data[step * src->ds_cnt];
5271 dst->vf.when = src->start + step * src->step;
5276 /* The time value returned here is the
5277 * actual time value. This is the end of the last
5281 while (step >= 0 && isnan(data[step * src->ds_cnt]))
5283 if (step < 0) { /* all entries were NaN */
5288 dst->vf.val = data[step * src->ds_cnt];
5289 dst->vf.when = src->start + (step + 1) * src->step;
5295 case VDEF_LSLCORREL:{
5296 /* Bestfit line by linear least squares method */
5299 double SUMx, SUMy, SUMxy, SUMxx, SUMyy, slope, y_intercept, correl;
5306 for (step = 0; step < steps; step++) {
5307 if (finite(data[step * src->ds_cnt])) {
5310 SUMxx += step * step;
5311 SUMxy += step * data[step * src->ds_cnt];
5312 SUMy += data[step * src->ds_cnt];
5313 SUMyy += data[step * src->ds_cnt] * data[step * src->ds_cnt];
5317 slope = (SUMx * SUMy - cnt * SUMxy) / (SUMx * SUMx - cnt * SUMxx);
5318 y_intercept = (SUMy - slope * SUMx) / cnt;
5321 (SUMx * SUMy) / cnt) /
5323 (SUMx * SUMx) / cnt) * (SUMyy - (SUMy * SUMy) / cnt));
5325 if (dst->vf.op == VDEF_LSLSLOPE) {
5326 dst->vf.val = slope;
5329 } else if (dst->vf.op == VDEF_LSLINT) {
5330 dst->vf.val = y_intercept;
5333 } else if (dst->vf.op == VDEF_LSLCORREL) {
5334 dst->vf.val = correl;
5349 /* NaN < -INF < finite_values < INF */
5350 int vdef_percent_compar(
5356 /* Equality is not returned; this doesn't hurt except
5357 * (maybe) for a little performance.
5360 /* First catch NaN values. They are smallest */
5361 if (isnan(*(double *) a))
5363 if (isnan(*(double *) b))
5365 /* NaN doesn't reach this part so INF and -INF are extremes.
5366 * The sign from isinf() is compatible with the sign we return
5368 if (isinf(*(double *) a))
5369 return isinf(*(double *) a);
5370 if (isinf(*(double *) b))
5371 return isinf(*(double *) b);
5372 /* If we reach this, both values must be finite */
5373 if (*(double *) a < *(double *) b)
5382 rrd_info_type_t type,
5383 rrd_infoval_t value)
5385 im->grinfo_current = rrd_info_push(im->grinfo_current, key, type, value);
5386 if (im->grinfo == NULL) {
5387 im->grinfo = im->grinfo_current;
5398 /* Handling based on
5399 - ANSI C99 Specifications http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1124.pdf
5400 - Single UNIX Specification version 2 http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html
5401 - POSIX:2001/Single UNIX Specification version 3 http://www.opengroup.org/onlinepubs/009695399/functions/strftime.html
5402 - POSIX:2008 Specifications http://www.opengroup.org/onlinepubs/9699919799/functions/strftime.html
5403 Specifications tells
5404 "If a conversion specifier is not one of the above, the behavior is undefined."
5407 "A conversion specifier consists of a % character, possibly followed by an E or O modifier character (described below), followed by a character that determines the behavior of the conversion specifier.
5410 "A conversion specification consists of a '%' character, possibly followed by an E or O modifier, and a terminating conversion specifier character that determines the conversion specification's behavior."
5412 POSIX:2008 introduce more complexe behavior that are not handled here.
5414 According to this, this code will replace:
5415 - % followed by @ by a %@
5416 - % followed by by a %SPACE
5417 - % followed by . by a %.
5418 - % followed by % by a %
5419 - % followed by t by a TAB
5420 - % followed by E then anything by '-'
5421 - % followed by O then anything by '-'
5422 - % followed by anything else by at least one '-'. More characters may be added to better fit expected output length
5426 for(j = 0; (j < FMT_LEG_LEN - 1) && (jj < FMT_LEG_LEN); j++) { /* we don't need to parse the last char */
5427 if (format[j] == '%') {
5428 if ((format[j+1] == 'E') || (format[j+1] == 'O')) {
5430 j+=2; /* We skip next 2 following char */
5431 } else if ((format[j+1] == 'C') || (format[j+1] == 'd') ||
5432 (format[j+1] == 'g') || (format[j+1] == 'H') ||
5433 (format[j+1] == 'I') || (format[j+1] == 'm') ||
5434 (format[j+1] == 'M') || (format[j+1] == 'S') ||
5435 (format[j+1] == 'U') || (format[j+1] == 'V') ||
5436 (format[j+1] == 'W') || (format[j+1] == 'y')) {
5438 if (jj < FMT_LEG_LEN) {
5441 j++; /* We skip the following char */
5442 } else if (format[j+1] == 'j') {
5444 if (jj < FMT_LEG_LEN - 1) {
5448 j++; /* We skip the following char */
5449 } else if ((format[j+1] == 'G') || (format[j+1] == 'Y')) {
5450 /* Assuming Year on 4 digit */
5452 if (jj < FMT_LEG_LEN - 2) {
5457 j++; /* We skip the following char */
5458 } else if (format[j+1] == 'R') {
5460 if (jj < FMT_LEG_LEN - 3) {
5466 j++; /* We skip the following char */
5467 } else if (format[j+1] == 'T') {
5469 if (jj < FMT_LEG_LEN - 6) {
5478 j++; /* We skip the following char */
5479 } else if (format[j+1] == 'F') {
5481 if (jj < FMT_LEG_LEN - 8) {
5492 j++; /* We skip the following char */
5493 } else if (format[j+1] == 'D') {
5495 if (jj < FMT_LEG_LEN - 6) {
5504 j++; /* We skip the following char */
5505 } else if (format[j+1] == 'n') {
5506 result[jj++] = '\r';
5507 result[jj++] = '\n';
5508 j++; /* We skip the following char */
5509 } else if (format[j+1] == 't') {
5510 result[jj++] = '\t';
5511 j++; /* We skip the following char */
5512 } else if (format[j+1] == '%') {
5514 j++; /* We skip the following char */
5515 } else if (format[j+1] == ' ') {
5516 if (jj < FMT_LEG_LEN - 1) {
5520 j++; /* We skip the following char */
5521 } else if (format[j+1] == '.') {
5522 if (jj < FMT_LEG_LEN - 1) {
5526 j++; /* We skip the following char */
5527 } else if (format[j+1] == '@') {
5528 if (jj < FMT_LEG_LEN - 1) {
5532 j++; /* We skip the following char */
5535 j++; /* We skip the following char */
5538 result[jj++] = format[j];
5541 result[jj] = '\0'; /* We must force the end of the string */