Commit | Line | Data |
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9e066e23 CM |
1 | /* |
2 | * Copyright (C) 2012 Fusion-io | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public | |
6 | * License v2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | * | |
17 | * Parts of this file were imported from Jens Axboe's blktrace sources (also GPL) | |
18 | */ | |
19 | #include <sys/types.h> | |
20 | #include <sys/stat.h> | |
21 | #include <fcntl.h> | |
22 | #include <unistd.h> | |
23 | #include <stdlib.h> | |
24 | #include <stdio.h> | |
25 | #include <math.h> | |
26 | #include <inttypes.h> | |
27 | #include <string.h> | |
28 | #include <asm/types.h> | |
29 | #include <errno.h> | |
30 | #include <sys/mman.h> | |
31 | #include <time.h> | |
32 | #include <math.h> | |
33 | ||
34 | #include "plot.h" | |
35 | ||
ba758825 | 36 | static int io_graph_scale = 8; |
abf08f96 CM |
37 | static int graph_width = 700; |
38 | static int graph_height = 250; | |
39 | static int graph_circle_extra = 30; | |
ba758825 CM |
40 | static int graph_inner_x_margin = 2; |
41 | static int graph_inner_y_margin = 2; | |
9e066e23 CM |
42 | static int graph_tick_len = 5; |
43 | static int graph_left_pad = 120; | |
44 | static int tick_label_pad = 16; | |
45 | static int tick_font_size = 15; | |
46 | static char *font_family = "sans-serif"; | |
47 | ||
48 | /* this is the title for the whole page */ | |
49 | static int plot_title_height = 50; | |
50 | static int plot_title_font_size = 25; | |
51 | ||
52 | /* this is the label at the top of each plot */ | |
53 | static int plot_label_height = 60; | |
54 | static int plot_label_font_size = 20; | |
55 | ||
56 | /* label for each axis is slightly smaller */ | |
57 | static int axis_label_font_size = 16; | |
58 | ||
59 | int legend_x_off = 45; | |
60 | int legend_y_off = -10; | |
61 | int legend_font_size = 15; | |
62 | int legend_width = 80; | |
63 | ||
e199d546 CM |
64 | static int rolling_avg_secs = 0; |
65 | ||
9e066e23 CM |
66 | static int line_len = 1024; |
67 | static char line[1024]; | |
68 | ||
abf08f96 CM |
69 | static int final_height = 0; |
70 | static int final_width = 0; | |
71 | ||
0a43b43f JK |
72 | static char *colors[] = { |
73 | "blue", "darkgreen", | |
74 | "red", "aqua", | |
75 | "orange", "darkviolet", | |
76 | "brown", "#00FF00", | |
77 | "yellow", "coral", | |
78 | "black", "darkred", | |
79 | "fuchsia", "crimson", | |
80 | NULL }; | |
81 | ||
82 | extern unsigned int longest_proc_name; | |
83 | ||
84 | char *pick_color(void) | |
85 | { | |
86 | static int color_index; | |
87 | char *ret = colors[color_index]; | |
88 | ||
89 | if (!ret) { | |
90 | color_index = 0; | |
91 | ret = colors[color_index]; | |
92 | } | |
93 | color_index++; | |
94 | return ret; | |
95 | } | |
96 | ||
97 | static int cpu_color_index; | |
98 | ||
99 | char *pick_cpu_color(void) | |
100 | { | |
101 | char *ret = colors[cpu_color_index]; | |
102 | if (!ret) { | |
103 | cpu_color_index = 0; | |
104 | ret = colors[cpu_color_index]; | |
105 | } | |
106 | cpu_color_index++; | |
107 | return ret; | |
108 | } | |
109 | ||
110 | void reset_cpu_color(void) | |
111 | { | |
112 | cpu_color_index = 0; | |
113 | } | |
114 | ||
230f0601 | 115 | struct graph_line_data *alloc_line_data(int min_seconds, int max_seconds, int stop_seconds) |
9e066e23 CM |
116 | { |
117 | int size = sizeof(struct graph_line_data) + (stop_seconds + 1) * sizeof(struct graph_line_pair); | |
118 | struct graph_line_data *gld; | |
119 | ||
120 | gld = calloc(1, size); | |
121 | if (!gld) { | |
122 | fprintf(stderr, "Unable to allocate memory for graph data\n"); | |
123 | exit(1); | |
124 | } | |
230f0601 | 125 | gld->min_seconds = min_seconds; |
f752a6eb | 126 | gld->max_seconds = max_seconds; |
9e066e23 CM |
127 | gld->stop_seconds = stop_seconds; |
128 | return gld; | |
129 | } | |
130 | ||
131 | void free_line_data(struct graph_line_data *gld) | |
132 | { | |
133 | free(gld->label); | |
134 | free(gld); | |
135 | } | |
136 | ||
0a43b43f | 137 | struct graph_dot_data *alloc_dot_data(int min_seconds, int max_seconds, u64 min_offset, u64 max_offset, int stop_seconds, char *color, char *label) |
9e066e23 CM |
138 | { |
139 | int size; | |
140 | int arr_size; | |
ba758825 | 141 | int rows = graph_height * io_graph_scale; |
9e066e23 CM |
142 | int cols = graph_width; |
143 | struct graph_dot_data *gdd; | |
144 | ||
145 | size = sizeof(struct graph_dot_data); | |
146 | ||
147 | /* the number of bits */ | |
148 | arr_size = (rows + 1) * cols; | |
149 | ||
150 | /* the number of bytes */ | |
6c984075 | 151 | arr_size = (arr_size + 7) / 8; |
9e066e23 CM |
152 | |
153 | gdd = calloc(1, size + arr_size); | |
154 | if (!gdd) { | |
155 | fprintf(stderr, "Unable to allocate memory for graph data\n"); | |
156 | exit(1); | |
157 | } | |
230f0601 | 158 | gdd->min_seconds = min_seconds; |
f752a6eb | 159 | gdd->max_seconds = max_seconds; |
9e066e23 CM |
160 | gdd->stop_seconds = stop_seconds; |
161 | gdd->rows = rows; | |
162 | gdd->cols = cols; | |
9b9fa04b | 163 | gdd->min_offset = min_offset; |
9e066e23 | 164 | gdd->max_offset = max_offset; |
0a43b43f JK |
165 | gdd->color = color; |
166 | gdd->label = label; | |
167 | ||
168 | if (strlen(label) > longest_proc_name) | |
169 | longest_proc_name = strlen(label); | |
170 | ||
9e066e23 CM |
171 | return gdd; |
172 | } | |
173 | ||
174 | void free_dot_data(struct graph_dot_data *gdd) | |
175 | { | |
176 | free(gdd); | |
177 | } | |
178 | ||
ba758825 | 179 | void set_gdd_bit(struct graph_dot_data *gdd, u64 offset, double bytes, double time) |
9e066e23 | 180 | { |
9b9fa04b | 181 | double bytes_per_row = (double)(gdd->max_offset - gdd->min_offset + 1) / gdd->rows; |
230f0601 | 182 | double secs_per_col = (double)(gdd->max_seconds - gdd->min_seconds) / gdd->cols; |
9e066e23 CM |
183 | double col; |
184 | double row; | |
185 | int col_int; | |
186 | int row_int; | |
187 | int bit_index; | |
188 | int arr_index; | |
189 | int bit_mod; | |
ba758825 | 190 | double mod = bytes_per_row; |
9e066e23 | 191 | |
9b9fa04b | 192 | if (offset > gdd->max_offset || offset < gdd->min_offset) |
9e066e23 | 193 | return; |
9e066e23 | 194 | gdd->total_ios++; |
ba758825 | 195 | time = time / 1000000000.0; |
6c984075 | 196 | while (bytes > 0 && offset <= gdd->max_offset) { |
9b9fa04b | 197 | row = (double)(offset - gdd->min_offset) / bytes_per_row; |
230f0601 | 198 | col = (time - gdd->min_seconds) / secs_per_col; |
9e066e23 CM |
199 | |
200 | col_int = floor(col); | |
201 | row_int = floor(row); | |
9e066e23 CM |
202 | bit_index = row_int * gdd->cols + col_int; |
203 | arr_index = bit_index / 8; | |
204 | bit_mod = bit_index % 8; | |
205 | ||
206 | gdd->data[arr_index] |= 1 << bit_mod; | |
207 | offset += mod; | |
208 | bytes -= mod; | |
209 | } | |
210 | } | |
211 | ||
212 | void print_gdd(struct graph_dot_data *gdd) | |
213 | { | |
214 | int col = 0; | |
215 | int row = 0; | |
216 | int arr_index; | |
217 | u64 val; | |
218 | int bit_index; | |
219 | int bit_mod; | |
220 | ||
221 | for (row = gdd->rows - 1; row >= 0; row--) { | |
222 | for (col = 0; col < gdd->cols; col++) { | |
223 | bit_index = row * gdd->cols + col; | |
224 | arr_index = bit_index / sizeof(unsigned long); | |
225 | bit_mod = bit_index % sizeof(unsigned long); | |
226 | ||
227 | val = gdd->data[arr_index]; | |
228 | if (val & (1 << bit_mod)) | |
229 | printf("*"); | |
230 | else | |
231 | printf(" "); | |
232 | } | |
233 | printf("\n"); | |
234 | } | |
235 | } | |
236 | ||
237 | static double rolling_avg(struct graph_line_pair *data, int index, int distance) | |
238 | { | |
239 | double sum = 0; | |
240 | int start; | |
241 | ||
242 | if (distance < 0) | |
243 | distance = 1; | |
244 | if (distance > index) { | |
245 | start = 0; | |
246 | } else { | |
247 | start = index - distance; | |
248 | } | |
249 | distance = 0; | |
250 | while (start <= index) { | |
251 | double avg; | |
252 | ||
253 | if (data[start].count) | |
254 | avg = ((double)data[start].sum) / data[start].count; | |
255 | else | |
256 | avg= 0; | |
257 | ||
258 | sum += avg; | |
259 | distance++; | |
260 | start++; | |
261 | } | |
262 | return sum / distance; | |
263 | } | |
264 | ||
265 | void write_svg_header(int fd) | |
266 | { | |
abf08f96 CM |
267 | char *spaces = " \n"; |
268 | char *header = "<svg xmlns=\"http://www.w3.org/2000/svg\">\n"; | |
9e066e23 CM |
269 | char *filter1 ="<filter id=\"shadow\">\n " |
270 | "<feOffset result=\"offOut\" in=\"SourceAlpha\" dx=\"4\" dy=\"4\" />\n " | |
271 | "<feGaussianBlur result=\"blurOut\" in=\"offOut\" stdDeviation=\"2\" />\n " | |
272 | "<feBlend in=\"SourceGraphic\" in2=\"blurOut\" mode=\"normal\" />\n " | |
273 | "</filter>\n"; | |
274 | char *filter2 ="<filter id=\"textshadow\" x=\"0\" y=\"0\" width=\"200%\" height=\"200%\">\n " | |
275 | "<feOffset result=\"offOut\" in=\"SourceAlpha\" dx=\"1\" dy=\"1\" />\n " | |
276 | "<feGaussianBlur result=\"blurOut\" in=\"offOut\" stdDeviation=\"1.5\" />\n " | |
277 | "<feBlend in=\"SourceGraphic\" in2=\"blurOut\" mode=\"normal\" />\n " | |
278 | "</filter>\n"; | |
279 | char *filter3 ="<filter id=\"labelshadow\" x=\"0\" y=\"0\" width=\"200%\" height=\"200%\">\n " | |
280 | "<feOffset result=\"offOut\" in=\"SourceGraphic\" dx=\"3\" dy=\"3\" />\n " | |
281 | "<feColorMatrix result=\"matrixOut\" in=\"offOut\" type=\"matrix\" " | |
282 | "values=\"0.2 0 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 0 0 0 1 0\" /> " | |
283 | "<feGaussianBlur result=\"blurOut\" in=\"offOut\" stdDeviation=\"2\" />\n " | |
284 | "<feBlend in=\"SourceGraphic\" in2=\"blurOut\" mode=\"normal\" />\n " | |
285 | "</filter>\n"; | |
286 | char *defs_start = "<defs>\n"; | |
287 | char *defs_close = "</defs>\n"; | |
abf08f96 CM |
288 | final_width = 0; |
289 | final_height = 0; | |
9e066e23 CM |
290 | |
291 | write(fd, header, strlen(header)); | |
abf08f96 CM |
292 | /* write a bunch of spaces so we can stuff in the width and height later */ |
293 | write(fd, spaces, strlen(spaces)); | |
8ed9516f CM |
294 | write(fd, spaces, strlen(spaces)); |
295 | write(fd, spaces, strlen(spaces)); | |
abf08f96 | 296 | |
9e066e23 CM |
297 | write(fd, defs_start, strlen(defs_start)); |
298 | write(fd, filter1, strlen(filter1)); | |
299 | write(fd, filter2, strlen(filter2)); | |
300 | write(fd, filter3, strlen(filter3)); | |
301 | write(fd, defs_close, strlen(defs_close)); | |
302 | } | |
303 | ||
304 | void write_drop_shadow(struct plot *plot) | |
305 | { | |
306 | snprintf(line, line_len, "<rect x=\"0\" y=\"%d\" width=\"%d\" height=\"%d\" fill=\"white\"/>\n", | |
307 | plot->start_y_offset, plot->total_width, 45); | |
308 | write(plot->fd, line, strlen(line)); | |
309 | ||
310 | snprintf(line, line_len, "<path d=\"M %d %d h %d v %d h %d t %d %d V %d H %d Z\" " | |
311 | "fill=\"white\" filter=\"url(#shadow)\"/>", | |
312 | 0, plot->start_y_offset, | |
313 | plot->total_width - graph_left_pad / 2, | |
314 | -plot->total_height, 24, 1, 1, | |
315 | plot->start_y_offset + 10, 0); | |
316 | write(plot->fd, line, strlen(line)); | |
317 | ||
318 | snprintf(line, line_len, "<path d=\"M %d %d H %d V %d h %d V %d H %d Z\" " | |
319 | "fill=\"white\"/>", | |
320 | 0, plot->start_y_offset - 15, /* start */ | |
321 | plot->total_width - graph_left_pad / 2 - 10, /* hline over */ | |
322 | plot->start_y_offset - plot->total_height, /* vline up */ | |
323 | 15, /*hline over */ | |
324 | plot->start_y_offset, /* vline back down */ | |
325 | 0); | |
326 | write(plot->fd, line, strlen(line)); | |
327 | ||
328 | plot->start_y_offset += 45; | |
329 | } | |
330 | ||
331 | /* svg y offset for the traditional 0,0 (bottom left corner) of the plot */ | |
332 | static int axis_y(void) | |
333 | { | |
ba758825 | 334 | return plot_label_height + graph_height + graph_inner_y_margin; |
9e066e23 CM |
335 | } |
336 | ||
337 | /* this gives you the correct pixel for a given offset from the bottom left y axis */ | |
ba758825 | 338 | static double axis_y_off_double(double y) |
9e066e23 CM |
339 | { |
340 | return plot_label_height + graph_height - y; | |
341 | } | |
342 | ||
ba758825 CM |
343 | static int axis_y_off(int y) |
344 | { | |
345 | return axis_y_off_double(y); | |
346 | } | |
347 | ||
9e066e23 CM |
348 | /* svg x axis offset from 0 */ |
349 | static int axis_x(void) | |
350 | { | |
351 | return graph_left_pad; | |
352 | } | |
353 | ||
354 | /* the correct pixel for a given X offset */ | |
ba758825 CM |
355 | static double axis_x_off_double(double x) |
356 | { | |
357 | return graph_left_pad + graph_inner_x_margin + x; | |
358 | } | |
359 | ||
9e066e23 CM |
360 | static int axis_x_off(int x) |
361 | { | |
ba758825 | 362 | return (int)axis_x_off_double(x); |
9e066e23 CM |
363 | } |
364 | ||
365 | /* | |
366 | * this draws a backing rectangle for the plot and it | |
367 | * also creates a new svg element so our offsets can | |
368 | * be relative to this one plot. | |
369 | */ | |
370 | void setup_axis(struct plot *plot) | |
371 | { | |
372 | int ret; | |
373 | int len; | |
374 | int fd = plot->fd; | |
375 | int bump_height = tick_font_size * 3 + axis_label_font_size; | |
8ed9516f | 376 | int local_legend_width = legend_width; |
9e066e23 | 377 | |
8ed9516f CM |
378 | if (plot->no_legend) |
379 | local_legend_width = 0; | |
380 | ||
cc3d54d5 | 381 | plot->total_width = axis_x_off(graph_width) + graph_left_pad / 2 + local_legend_width; |
9e066e23 CM |
382 | plot->total_height = axis_y() + tick_label_pad + tick_font_size; |
383 | ||
384 | if (plot->add_xlabel) | |
385 | plot->total_height += bump_height; | |
386 | ||
387 | /* backing rect */ | |
8ed9516f | 388 | snprintf(line, line_len, "<rect x=\"%d\" y=\"%d\" width=\"%d\" " |
9e066e23 | 389 | "height=\"%d\" fill=\"white\" stroke=\"none\"/>", |
8ed9516f | 390 | plot->start_x_offset, |
9e066e23 CM |
391 | plot->start_y_offset, plot->total_width + 40, |
392 | plot->total_height + 20); | |
393 | len = strlen(line); | |
394 | write(fd, line, len); | |
abf08f96 | 395 | |
8ed9516f | 396 | snprintf(line, line_len, "<rect x=\"%d\" y=\"%d\" width=\"%d\" " |
9e066e23 CM |
397 | "filter=\"url(#shadow)\" " |
398 | "height=\"%d\" fill=\"white\" stroke=\"none\"/>", | |
8ed9516f | 399 | plot->start_x_offset + 15, |
9e066e23 CM |
400 | plot->start_y_offset, plot->total_width, plot->total_height); |
401 | len = strlen(line); | |
402 | write(fd, line, len); | |
403 | plot->total_height += 20; | |
8ed9516f | 404 | plot->total_width += 20; |
9e066e23 | 405 | |
abf08f96 CM |
406 | if (plot->total_height + plot->start_y_offset > final_height) |
407 | final_height = plot->total_height + plot->start_y_offset; | |
8ed9516f CM |
408 | if (plot->start_x_offset + plot->total_width + 40 > final_width) |
409 | final_width = plot->start_x_offset + plot->total_width + 40; | |
9e066e23 CM |
410 | |
411 | /* create an svg object for all our coords to be relative against */ | |
abf08f96 | 412 | snprintf(line, line_len, "<svg x=\"%d\" y=\"%d\">\n", plot->start_x_offset, plot->start_y_offset); |
9e066e23 CM |
413 | write(fd, line, strlen(line)); |
414 | ||
415 | snprintf(line, 1024, "<path d=\"M%d %d h %d V %d H %d Z\" stroke=\"black\" stroke-width=\"2\" fill=\"none\"/>\n", | |
416 | axis_x(), axis_y(), | |
ba758825 | 417 | graph_width + graph_inner_x_margin * 2, axis_y_off(graph_height) - graph_inner_y_margin, |
9e066e23 CM |
418 | axis_x()); |
419 | len = strlen(line); | |
420 | ret = write(fd, line, len); | |
421 | if (ret != len) { | |
422 | fprintf(stderr, "failed to write svg axis\n"); | |
423 | exit(1); | |
424 | } | |
425 | } | |
426 | ||
abf08f96 CM |
427 | /* |
428 | * this draws a backing rectangle for the plot and it | |
429 | * also creates a new svg element so our offsets can | |
430 | * be relative to this one plot. | |
431 | */ | |
432 | void setup_axis_spindle(struct plot *plot) | |
433 | { | |
434 | int len; | |
435 | int fd = plot->fd; | |
436 | int bump_height = tick_font_size * 3 + axis_label_font_size; | |
437 | ||
8ed9516f CM |
438 | legend_x_off = -60; |
439 | ||
440 | plot->total_width = axis_x_off(graph_width) + legend_width; | |
abf08f96 CM |
441 | plot->total_height = axis_y() + tick_label_pad + tick_font_size; |
442 | ||
443 | if (plot->add_xlabel) | |
444 | plot->total_height += bump_height; | |
445 | ||
446 | /* backing rect */ | |
8ed9516f | 447 | snprintf(line, line_len, "<rect x=\"%d\" y=\"%d\" width=\"%d\" " |
abf08f96 | 448 | "height=\"%d\" fill=\"white\" stroke=\"none\"/>", |
8ed9516f CM |
449 | plot->start_x_offset, |
450 | plot->start_y_offset, plot->total_width + 10, | |
abf08f96 CM |
451 | plot->total_height + 20); |
452 | len = strlen(line); | |
453 | write(fd, line, len); | |
454 | ||
8ed9516f | 455 | snprintf(line, line_len, "<rect x=\"%d\" y=\"%d\" width=\"%d\" " |
abf08f96 CM |
456 | "filter=\"url(#shadow)\" " |
457 | "height=\"%d\" fill=\"white\" stroke=\"none\"/>", | |
8ed9516f CM |
458 | plot->start_x_offset + 15, |
459 | plot->start_y_offset, plot->total_width - 30, | |
460 | plot->total_height); | |
abf08f96 CM |
461 | len = strlen(line); |
462 | write(fd, line, len); | |
463 | plot->total_height += 20; | |
464 | ||
465 | if (plot->total_height + plot->start_y_offset > final_height) | |
466 | final_height = plot->total_height + plot->start_y_offset; | |
8ed9516f CM |
467 | if (plot->start_x_offset + plot->total_width + 40 > final_width) |
468 | final_width = plot->start_x_offset + plot->total_width + 40; | |
abf08f96 CM |
469 | |
470 | /* create an svg object for all our coords to be relative against */ | |
471 | snprintf(line, line_len, "<svg x=\"%d\" y=\"%d\">\n", plot->start_x_offset, plot->start_y_offset); | |
472 | write(fd, line, strlen(line)); | |
473 | ||
474 | } | |
475 | ||
9e066e23 CM |
476 | /* draw a plot title. This should be done only once, |
477 | * and it bumps the plot width/height numbers by | |
478 | * what it draws. | |
479 | * | |
480 | * Call this before setting up the first axis | |
481 | */ | |
482 | void set_plot_title(struct plot *plot, char *title) | |
483 | { | |
484 | int len; | |
485 | int fd = plot->fd; | |
486 | ||
487 | plot->total_height = plot_title_height; | |
488 | plot->total_width = axis_x_off(graph_width) + graph_left_pad / 2 + legend_width; | |
489 | ||
490 | /* backing rect */ | |
491 | snprintf(line, line_len, "<rect x=\"0\" y=\"%d\" width=\"%d\" height=\"%d\" fill=\"white\" stroke=\"none\"/>", | |
492 | plot->start_y_offset, plot->total_width + 40, plot_title_height + 20); | |
493 | len = strlen(line); | |
494 | write(fd, line, len); | |
495 | ||
496 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
497 | "font-weight=\"bold\" fill=\"black\" style=\"text-anchor: %s\">%s</text>\n", | |
498 | axis_x_off(graph_width / 2), | |
499 | plot->start_y_offset + plot_title_height / 2, | |
500 | font_family, plot_title_font_size, "middle", title); | |
501 | plot->start_y_offset += plot_title_height; | |
502 | len = strlen(line); | |
503 | write(fd, line, len); | |
504 | } | |
505 | ||
d44f4c4c JK |
506 | #define TICK_MINI_STEPS 3 |
507 | ||
508 | static double find_step(double first, double last, int num_ticks) | |
509 | { | |
510 | int mini_step[TICK_MINI_STEPS] = { 1, 2, 5 }; | |
511 | int cur_mini_step = 0; | |
512 | double step = (last - first) / num_ticks; | |
513 | double log10 = log(10); | |
514 | ||
515 | /* Round to power of 10 */ | |
516 | step = exp(floor(log(step) / log10) * log10); | |
517 | /* Scale down step to provide enough ticks */ | |
518 | while ((last - first) / (step * mini_step[cur_mini_step]) > num_ticks | |
519 | && cur_mini_step < TICK_MINI_STEPS) | |
520 | cur_mini_step++; | |
521 | step *= mini_step[cur_mini_step - 1]; | |
522 | ||
523 | return step; | |
524 | } | |
525 | ||
9e066e23 CM |
526 | /* |
527 | * create evenly spread out ticks along the xaxis. if tick only is set | |
528 | * this just makes the ticks, otherwise it labels each tick as it goes | |
529 | */ | |
530 | void set_xticks(struct plot *plot, int num_ticks, int first, int last) | |
531 | { | |
d44f4c4c JK |
532 | int pixels_per_tick; |
533 | double step; | |
9e066e23 | 534 | int i; |
ba758825 | 535 | int tick_y = axis_y_off(graph_tick_len) + graph_inner_y_margin; |
9e066e23 CM |
536 | int tick_x = axis_x(); |
537 | int tick_only = plot->add_xlabel == 0; | |
538 | ||
539 | int text_y = axis_y() + tick_label_pad; | |
540 | ||
541 | char *middle = "middle"; | |
542 | char *start = "start"; | |
543 | ||
d44f4c4c JK |
544 | step = find_step(first, last, num_ticks); |
545 | /* | |
546 | * We don't want last two ticks to be too close together so subtract | |
547 | * 20% of the step from the interval | |
548 | */ | |
549 | num_ticks = (double)(last - first - step / 5) / step + 1; | |
550 | pixels_per_tick = graph_width * step / (double)(last - first); | |
551 | ||
9e066e23 CM |
552 | for (i = 0; i < num_ticks; i++) { |
553 | char *anchor; | |
554 | if (i != 0) { | |
555 | snprintf(line, line_len, "<rect x=\"%d\" y=\"%d\" width=\"2\" height=\"%d\" style=\"stroke:none;fill:black;\"/>\n", | |
556 | tick_x, tick_y, graph_tick_len); | |
557 | write(plot->fd, line, strlen(line)); | |
558 | anchor = middle; | |
559 | } else { | |
560 | anchor = start; | |
561 | } | |
562 | ||
563 | if (!tick_only) { | |
d44f4c4c JK |
564 | if (step >= 1) |
565 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
566 | "fill=\"black\" style=\"text-anchor: %s\">%d</text>\n", | |
567 | tick_x, text_y, font_family, tick_font_size, anchor, | |
568 | (int)(first + step * i)); | |
569 | else | |
570 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
571 | "fill=\"black\" style=\"text-anchor: %s\">%.2f</text>\n", | |
572 | tick_x, text_y, font_family, tick_font_size, anchor, | |
573 | first + step * i); | |
9e066e23 CM |
574 | write(plot->fd, line, strlen(line)); |
575 | } | |
576 | tick_x += pixels_per_tick; | |
577 | } | |
578 | ||
579 | if (!tick_only) { | |
d44f4c4c JK |
580 | if (step >= 1) |
581 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
582 | "fill=\"black\" style=\"text-anchor: middle\">%d</text>\n", | |
583 | axis_x_off(graph_width - 2), | |
584 | text_y, font_family, tick_font_size, last); | |
585 | else | |
586 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
587 | "fill=\"black\" style=\"text-anchor: middle\">%.2f</text>\n", | |
588 | axis_x_off(graph_width - 2), | |
589 | text_y, font_family, tick_font_size, (double)last); | |
9e066e23 CM |
590 | write(plot->fd, line, strlen(line)); |
591 | } | |
592 | } | |
593 | ||
594 | void set_ylabel(struct plot *plot, char *label) | |
595 | { | |
596 | int len; | |
597 | int fd = plot->fd; | |
598 | ||
599 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" " | |
600 | "transform=\"rotate(-90 %d %d)\" font-weight=\"bold\" " | |
601 | "font-size=\"%d\" fill=\"black\" style=\"text-anchor: %s\">%s</text>\n", | |
602 | graph_left_pad / 2 - axis_label_font_size, | |
603 | axis_y_off(graph_height / 2), | |
604 | font_family, | |
605 | graph_left_pad / 2 - axis_label_font_size, | |
ba758825 | 606 | (int)axis_y_off(graph_height / 2), |
9e066e23 CM |
607 | axis_label_font_size, "middle", label); |
608 | len = strlen(line); | |
609 | write(fd, line, len); | |
610 | } | |
611 | ||
612 | void set_xlabel(struct plot *plot, char *label) | |
613 | { | |
614 | int len; | |
615 | int fd = plot->fd; | |
616 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" " | |
617 | "font-weight=\"bold\" " | |
618 | "font-size=\"%d\" fill=\"black\" style=\"text-anchor: %s\">%s</text>\n", | |
619 | axis_x_off(graph_width / 2), | |
620 | axis_y() + tick_font_size * 3 + axis_label_font_size / 2, | |
621 | font_family, | |
622 | axis_label_font_size, "middle", label); | |
623 | len = strlen(line); | |
624 | write(fd, line, len); | |
625 | ||
626 | } | |
627 | ||
628 | /* | |
629 | * create evenly spread out ticks along the y axis. | |
630 | * The ticks are labeled as it goes | |
631 | */ | |
632 | void set_yticks(struct plot *plot, int num_ticks, int first, int last, char *units) | |
633 | { | |
634 | int pixels_per_tick = graph_height / num_ticks; | |
635 | int step = (last - first) / num_ticks; | |
636 | int i; | |
637 | int tick_y = 0; | |
638 | int text_x = axis_x() - 6; | |
639 | int tick_x = axis_x(); | |
640 | char *anchor = "end"; | |
641 | ||
642 | for (i = 0; i < num_ticks; i++) { | |
643 | if (i != 0) { | |
644 | snprintf(line, line_len, "<line x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\" " | |
645 | "style=\"stroke:lightgray;stroke-width:2;stroke-dasharray:9,12;\"/>\n", | |
646 | tick_x, axis_y_off(tick_y), | |
647 | axis_x_off(graph_width), axis_y_off(tick_y)); | |
648 | write(plot->fd, line, strlen(line)); | |
649 | } | |
650 | ||
651 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
652 | "fill=\"black\" style=\"text-anchor: %s\">%d%s</text>\n", | |
653 | text_x, | |
654 | axis_y_off(tick_y - tick_font_size / 2), | |
9b9fa04b | 655 | font_family, tick_font_size, anchor, first + step * i, units); |
9e066e23 CM |
656 | write(plot->fd, line, strlen(line)); |
657 | tick_y += pixels_per_tick; | |
658 | } | |
659 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
660 | "fill=\"black\" style=\"text-anchor: %s\">%d%s</text>\n", | |
661 | text_x, axis_y_off(graph_height), font_family, tick_font_size, anchor, last, units); | |
662 | write(plot->fd, line, strlen(line)); | |
663 | } | |
664 | ||
665 | void set_plot_label(struct plot *plot, char *label) | |
666 | { | |
667 | int len; | |
668 | int fd = plot->fd; | |
669 | ||
670 | snprintf(line, line_len, "<text x=\"%d\" y=\"%d\" font-family=\"%s\" " | |
671 | "font-size=\"%d\" fill=\"black\" style=\"text-anchor: %s\">%s</text>\n", | |
672 | axis_x() + graph_width / 2, | |
673 | plot_label_height / 2, | |
674 | font_family, plot_label_font_size, "middle", label); | |
675 | len = strlen(line); | |
676 | write(fd, line, len); | |
677 | } | |
678 | ||
679 | static void close_svg(int fd) | |
680 | { | |
681 | char *close_line = "</svg>\n"; | |
682 | ||
683 | write(fd, close_line, strlen(close_line)); | |
684 | } | |
685 | ||
686 | int close_plot(struct plot *plot) | |
687 | { | |
688 | close_svg(plot->fd); | |
cc3d54d5 CM |
689 | if (plot->direction == PLOT_DOWN) |
690 | plot->start_y_offset += plot->total_height; | |
691 | else if (plot->direction == PLOT_ACROSS) | |
692 | plot->start_x_offset += plot->total_width; | |
8ed9516f CM |
693 | return 0; |
694 | } | |
695 | ||
ba758825 | 696 | struct plot *alloc_plot(void) |
9e066e23 CM |
697 | { |
698 | struct plot *plot; | |
699 | plot = calloc(1, sizeof(*plot)); | |
700 | if (!plot) { | |
701 | fprintf(stderr, "Unable to allocate memory %s\n", strerror(errno)); | |
702 | exit(1); | |
703 | } | |
ba758825 | 704 | plot->fd = 0; |
9e066e23 CM |
705 | return plot; |
706 | } | |
707 | ||
abf08f96 CM |
708 | int close_plot_file(struct plot *plot) |
709 | { | |
710 | int ret; | |
711 | ret = lseek(plot->fd, 0, SEEK_SET); | |
712 | if (ret == (off_t)-1) { | |
713 | perror("seek"); | |
714 | exit(1); | |
715 | } | |
716 | final_width = ((final_width + 1) / 2) * 2; | |
717 | final_height = ((final_height + 1) / 2) * 2; | |
718 | snprintf(line, line_len, "<svg xmlns=\"http://www.w3.org/2000/svg\" " | |
719 | "width=\"%d\" height=\"%d\">\n", | |
720 | final_width, final_height); | |
721 | write(plot->fd, line, strlen(line)); | |
8ed9516f CM |
722 | snprintf(line, line_len, "<rect x=\"0\" y=\"0\" width=\"%d\" " |
723 | "height=\"%d\" fill=\"white\"/>\n", final_width, final_height); | |
724 | write(plot->fd, line, strlen(line)); | |
abf08f96 CM |
725 | close(plot->fd); |
726 | plot->fd = 0; | |
727 | return 0; | |
728 | } | |
729 | ||
ba758825 CM |
730 | void set_plot_output(struct plot *plot, char *filename) |
731 | { | |
732 | int fd; | |
733 | ||
734 | if (plot->fd) | |
abf08f96 | 735 | close_plot_file(plot); |
ba758825 CM |
736 | fd = open(filename, O_CREAT | O_TRUNC | O_WRONLY, 0600); |
737 | if (fd < 0) { | |
738 | fprintf(stderr, "Unable to open output file %s err %s\n", filename, strerror(errno)); | |
739 | exit(1); | |
740 | } | |
741 | plot->fd = fd; | |
742 | plot->start_y_offset = plot->start_x_offset = 0; | |
743 | write_svg_header(fd); | |
744 | } | |
745 | ||
9e066e23 CM |
746 | char *byte_unit_names[] = { "", "K", "M", "G", "T", "P", "E", "Z", "Y", "unobtainium" }; |
747 | int MAX_BYTE_UNIT_SCALE = 9; | |
748 | ||
749 | char *time_unit_names[] = { "n", "u", "m", "s" }; | |
750 | int MAX_TIME_UNIT_SCALE = 3; | |
751 | ||
752 | void scale_line_graph_bytes(u64 *max, char **units, u64 factor) | |
753 | { | |
754 | int scale = 0; | |
755 | u64 val = *max; | |
756 | u64 div = 1; | |
757 | while (val > factor * 64) { | |
758 | val /= factor; | |
759 | scale++; | |
760 | div *= factor; | |
761 | } | |
762 | *units = byte_unit_names[scale]; | |
763 | if (scale == 0) | |
764 | return; | |
765 | ||
766 | if (scale > MAX_BYTE_UNIT_SCALE) | |
767 | scale = MAX_BYTE_UNIT_SCALE; | |
768 | ||
769 | *max /= div; | |
770 | } | |
771 | ||
772 | void scale_line_graph_time(u64 *max, char **units) | |
773 | { | |
774 | int scale = 0; | |
775 | u64 val = *max; | |
776 | u64 div = 1; | |
777 | while (val > 1000 * 10) { | |
778 | val /= 1000; | |
779 | scale++; | |
780 | div *= 1000; | |
781 | if (scale == MAX_TIME_UNIT_SCALE) | |
782 | break; | |
783 | } | |
784 | *units = time_unit_names[scale]; | |
785 | if (scale == 0) | |
786 | return; | |
787 | ||
788 | *max /= div; | |
789 | } | |
790 | ||
bfb0e441 | 791 | int svg_line_graph(struct plot *plot, struct graph_line_data *gld, char *color, int thresh1, int thresh2) |
9e066e23 CM |
792 | { |
793 | int i; | |
794 | double val; | |
bfb0e441 | 795 | double avg; |
9e066e23 CM |
796 | int rolling; |
797 | int fd = plot->fd; | |
798 | char *start = "<path d=\""; | |
799 | double yscale = ((double)gld->max) / graph_height; | |
230f0601 | 800 | double xscale = (double)(gld->max_seconds - gld->min_seconds - 1) / graph_width; |
9e066e23 CM |
801 | char c = 'M'; |
802 | double x; | |
bfb0e441 CM |
803 | int printed_header = 0; |
804 | int printed_lines = 0; | |
9e066e23 | 805 | |
49d17e16 | 806 | if (thresh1 && thresh2) |
bfb0e441 CM |
807 | rolling = 0; |
808 | else if (rolling_avg_secs) | |
9e066e23 CM |
809 | rolling = rolling_avg_secs; |
810 | else | |
230f0601 | 811 | rolling = (gld->stop_seconds - gld->min_seconds) / 25; |
9e066e23 | 812 | |
230f0601 | 813 | for (i = gld->min_seconds; i < gld->stop_seconds; i++) { |
bfb0e441 | 814 | avg = rolling_avg(gld->data, i, rolling); |
49d17e16 CM |
815 | if (yscale == 0) |
816 | val = 0; | |
817 | else | |
818 | val = avg / yscale; | |
819 | ||
820 | if (val > graph_height) | |
821 | val = graph_height; | |
822 | if (val < 0) | |
823 | val = 0; | |
824 | ||
230f0601 | 825 | x = (double)(i - gld->min_seconds) / xscale; |
bfb0e441 CM |
826 | if (!thresh1 && !thresh2) { |
827 | ||
828 | if (!printed_header) { | |
829 | write(fd, start, strlen(start)); | |
830 | printed_header = 1; | |
831 | } | |
832 | ||
833 | /* in full line mode, everything in the graph is connected */ | |
834 | snprintf(line, line_len, "%c %d %d ", c, axis_x_off(x), axis_y_off(val)); | |
835 | c = 'L'; | |
836 | write(fd, line, strlen(line)); | |
837 | printed_lines = 1; | |
838 | } else if (avg > thresh1 || avg > thresh2) { | |
839 | int len = 10; | |
840 | if (!printed_header) { | |
841 | write(fd, start, strlen(start)); | |
842 | printed_header = 1; | |
843 | } | |
844 | ||
845 | /* otherwise, we just print a bar up there to show this one data point */ | |
f106953d | 846 | if (i >= gld->stop_seconds - 2) |
bfb0e441 CM |
847 | len = -10; |
848 | ||
849 | /* | |
850 | * we don't use the rolling averages here to show high | |
851 | * points in the data | |
852 | */ | |
853 | snprintf(line, line_len, "M %d %d h %d ", axis_x_off(x), | |
854 | axis_y_off(val), len); | |
855 | write(fd, line, strlen(line)); | |
856 | printed_lines = 1; | |
857 | } | |
9e066e23 | 858 | |
bfb0e441 CM |
859 | } |
860 | if (printed_lines) { | |
861 | snprintf(line, line_len, "\" fill=\"none\" stroke=\"%s\" stroke-width=\"2\"/>\n", color); | |
9e066e23 CM |
862 | write(fd, line, strlen(line)); |
863 | } | |
cc3d54d5 CM |
864 | if (plot->timeline) |
865 | svg_write_time_line(plot, plot->timeline); | |
9e066e23 CM |
866 | |
867 | return 0; | |
868 | } | |
869 | ||
ba758825 | 870 | void svg_write_time_line(struct plot *plot, int col) |
9e066e23 | 871 | { |
ba758825 CM |
872 | snprintf(line, line_len, "<line x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\" " |
873 | "style=\"stroke:black;stroke-width:2;\"/>\n", | |
874 | axis_x_off(col), axis_y_off(0), | |
875 | axis_x_off(col), axis_y_off(graph_height)); | |
876 | write(plot->fd, line, strlen(line)); | |
877 | } | |
878 | ||
abf08f96 | 879 | static int svg_add_io(int fd, double row, double col, double width, double height, char *color) |
ba758825 CM |
880 | { |
881 | float rx = 0; | |
882 | ||
883 | snprintf(line, line_len, "<rect x=\"%.2f\" y=\"%.2f\" width=\"%.1f\" height=\"%.1f\" " | |
abf08f96 CM |
884 | "rx=\"%.2f\" style=\"stroke:none;fill:%s;stroke-width:0\"/>\n", |
885 | axis_x_off_double(col), axis_y_off_double(row), width, height, rx, color); | |
9e066e23 CM |
886 | return write(fd, line, strlen(line)); |
887 | } | |
888 | ||
0a43b43f | 889 | int svg_io_graph_movie_array(struct plot *plot, struct pid_plot_history *pph) |
ba758825 CM |
890 | { |
891 | double cell_index; | |
892 | double movie_row; | |
893 | double movie_col; | |
894 | int i; | |
895 | ||
0a43b43f JK |
896 | for (i = 0; i < pph->num_used; i++) { |
897 | cell_index = pph->history[i]; | |
ba758825 CM |
898 | movie_row = floor(cell_index / graph_width); |
899 | movie_col = cell_index - movie_row * graph_width; | |
0a43b43f | 900 | svg_add_io(plot->fd, movie_row, movie_col, 4, 4, pph->color); |
abf08f96 CM |
901 | } |
902 | return 0; | |
903 | } | |
904 | ||
905 | static float spindle_steps = 0; | |
906 | ||
907 | void rewind_spindle_steps(int num) | |
908 | { | |
909 | spindle_steps -= num * 0.01; | |
910 | } | |
911 | ||
0a43b43f | 912 | int svg_io_graph_movie_array_spindle(struct plot *plot, struct pid_plot_history *pph) |
abf08f96 CM |
913 | { |
914 | double cell_index; | |
915 | int i; | |
916 | int num_circles = 0; | |
917 | double cells_per_circle; | |
918 | double circle_num; | |
919 | double degrees_per_cell; | |
920 | double rot; | |
921 | double center_x; | |
922 | double center_y; | |
923 | double graph_width_extra = graph_width + graph_circle_extra; | |
924 | double graph_height_extra = graph_height + graph_circle_extra; | |
925 | double radius;; | |
926 | ||
927 | if (graph_width_extra > graph_height_extra) | |
928 | graph_width_extra = graph_height_extra; | |
929 | ||
930 | if (graph_width_extra < graph_height_extra) | |
931 | graph_height_extra = graph_width_extra; | |
932 | ||
933 | radius = graph_width_extra; | |
934 | ||
935 | center_x = axis_x_off_double(graph_width_extra / 2); | |
936 | center_y = axis_y_off_double(graph_height_extra / 2); | |
937 | ||
938 | snprintf(line, line_len, "<g transform=\"rotate(%.4f, %.2f, %.2f)\"> " | |
939 | "<circle cx=\"%.2f\" cy=\"%.2f\" " | |
940 | "stroke=\"black\" stroke-width=\"6\" " | |
941 | "r=\"%.2f\" fill=\"none\"/>\n", | |
a8f3acba | 942 | spindle_steps * 1.2, center_x, center_y, center_x, center_y, graph_width_extra / 2); |
abf08f96 CM |
943 | write(plot->fd, line, strlen(line)); |
944 | snprintf(line, line_len, "<circle cx=\"%.2f\" cy=\"%.2f\" " | |
945 | "stroke=\"none\" fill=\"red\" r=\"%.2f\"/>\n</g>\n", | |
946 | axis_x_off_double(graph_width_extra), center_y, 4.5); | |
947 | write(plot->fd, line, strlen(line)); | |
948 | spindle_steps += 0.01; | |
949 | ||
950 | radius = floor(radius / 2); | |
951 | num_circles = radius / 4 - 3; | |
0a43b43f | 952 | cells_per_circle = pph->history_max / num_circles; |
abf08f96 CM |
953 | degrees_per_cell = 360 / cells_per_circle; |
954 | ||
0a43b43f JK |
955 | for (i = 0; i < pph->num_used; i++) { |
956 | cell_index = pph->history[i]; | |
abf08f96 CM |
957 | circle_num = floor(cell_index / cells_per_circle); |
958 | rot = cell_index - circle_num * cells_per_circle; | |
959 | circle_num = num_circles - circle_num; | |
960 | radius = circle_num * 4; | |
961 | ||
962 | rot = rot * degrees_per_cell; | |
963 | rot -= spindle_steps; | |
964 | snprintf(line, line_len, "<path transform=\"rotate(%.4f, %.2f, %.2f)\" " | |
965 | "d=\"M %.2f %.2f a %.2f %.2f 0 0 1 0 5\" " | |
966 | "stroke=\"%s\" stroke-width=\"4\"/>\n", | |
a8f3acba | 967 | -rot, center_x, center_y, |
abf08f96 | 968 | axis_x_off_double(graph_width_extra / 2 + radius) + 8, center_y, |
0a43b43f | 969 | radius, radius, pph->color); |
abf08f96 CM |
970 | |
971 | write(plot->fd, line, strlen(line)); | |
ba758825 CM |
972 | } |
973 | return 0; | |
974 | } | |
975 | ||
0a43b43f | 976 | static int add_plot_history(struct pid_plot_history *pph, double val) |
ba758825 | 977 | { |
0a43b43f JK |
978 | if (pph->num_used == pph->history_len) { |
979 | pph->history_len += 4096; | |
980 | pph->history = realloc(pph->history, | |
981 | pph->history_len * sizeof(double)); | |
982 | if (!pph->history) { | |
ba758825 CM |
983 | perror("Unable to allocate memory"); |
984 | exit(1); | |
985 | } | |
ba758825 | 986 | } |
0a43b43f | 987 | pph->history[pph->num_used++] = val; |
ba758825 CM |
988 | return 0; |
989 | } | |
990 | ||
0a43b43f | 991 | int svg_io_graph_movie(struct graph_dot_data *gdd, struct pid_plot_history *pph, int col) |
ba758825 CM |
992 | { |
993 | int row = 0; | |
994 | int arr_index; | |
995 | unsigned char val; | |
996 | int bit_index; | |
997 | int bit_mod; | |
9b9fa04b JK |
998 | double blocks_per_row = (gdd->max_offset - gdd->min_offset + 1) / gdd->rows; |
999 | double movie_blocks_per_cell = (gdd->max_offset - gdd->min_offset + 1) / (graph_width * graph_height); | |
ba758825 CM |
1000 | double cell_index; |
1001 | int margin_orig = graph_inner_y_margin; | |
1002 | ||
1003 | graph_inner_y_margin += 5; | |
0a43b43f | 1004 | pph->history_max = (gdd->max_offset - gdd->min_offset + 1) / movie_blocks_per_cell; |
ba758825 CM |
1005 | |
1006 | for (row = gdd->rows - 1; row >= 0; row--) { | |
1007 | bit_index = row * gdd->cols + col; | |
1008 | arr_index = bit_index / 8; | |
1009 | bit_mod = bit_index % 8; | |
1010 | ||
1011 | if (arr_index < 0) | |
1012 | continue; | |
1013 | val = gdd->data[arr_index]; | |
1014 | if (val & (1 << bit_mod)) { | |
1015 | /* in bytes, linear offset from the start of the drive */ | |
1016 | cell_index = (double)row * blocks_per_row; | |
1017 | ||
1018 | /* a cell number in the graph */ | |
1019 | cell_index /= movie_blocks_per_cell; | |
1020 | ||
0a43b43f | 1021 | add_plot_history(pph, cell_index); |
ba758825 CM |
1022 | } |
1023 | } | |
1024 | graph_inner_y_margin = margin_orig; | |
1025 | return 0; | |
1026 | } | |
1027 | ||
0a43b43f | 1028 | int svg_io_graph(struct plot *plot, struct graph_dot_data *gdd) |
9e066e23 CM |
1029 | { |
1030 | int fd = plot->fd;; | |
1031 | int col = 0; | |
1032 | int row = 0; | |
1033 | int arr_index; | |
1034 | unsigned char val; | |
1035 | int bit_index; | |
1036 | int bit_mod; | |
1037 | ||
1038 | for (row = gdd->rows - 1; row >= 0; row--) { | |
1039 | for (col = 0; col < gdd->cols; col++) { | |
1040 | bit_index = row * gdd->cols + col; | |
1041 | arr_index = bit_index / 8; | |
1042 | bit_mod = bit_index % 8; | |
1043 | ||
1044 | if (arr_index < 0) | |
1045 | continue; | |
1046 | val = gdd->data[arr_index]; | |
1047 | if (val & (1 << bit_mod)) | |
0a43b43f | 1048 | svg_add_io(fd, floor(row / io_graph_scale), col, 1.5, 1.5, gdd->color); |
9e066e23 CM |
1049 | } |
1050 | } | |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | void svg_alloc_legend(struct plot *plot, int num_lines) | |
1055 | { | |
1056 | char **lines = calloc(num_lines, sizeof(char *)); | |
1057 | plot->legend_index = 0; | |
1058 | plot->legend_lines = lines; | |
1059 | plot->num_legend_lines = num_lines; | |
1060 | } | |
1061 | ||
e199d546 | 1062 | void svg_free_legend(struct plot *plot) |
9e066e23 CM |
1063 | { |
1064 | int i; | |
e199d546 CM |
1065 | for (i = 0; i < plot->legend_index; i++) |
1066 | free(plot->legend_lines[i]); | |
1067 | free(plot->legend_lines); | |
1068 | plot->legend_lines = NULL; | |
1069 | plot->legend_index = 0; | |
1070 | } | |
1071 | ||
1072 | void svg_write_legend(struct plot *plot) | |
1073 | { | |
9e066e23 CM |
1074 | int legend_line_x = axis_x_off(graph_width) + legend_x_off; |
1075 | int legend_line_y = axis_y_off(graph_height) + legend_y_off; | |
e199d546 | 1076 | int i; |
9e066e23 CM |
1077 | |
1078 | if (plot->legend_index == 0) | |
1079 | return; | |
1080 | ||
1081 | snprintf(line, line_len, "<rect x=\"%d\" y=\"%d\" width=\"%d\" height=\"%d\" " | |
1082 | "fill=\"white\" filter=\"url(#shadow)\"/>\n", | |
1083 | legend_line_x - 15, | |
1084 | legend_line_y - 12, | |
1085 | legend_width, | |
1086 | plot->legend_index * legend_font_size + legend_font_size / 2 + 12); | |
1087 | ||
1088 | write(plot->fd, line, strlen(line)); | |
1089 | for (i = 0; i < plot->legend_index; i++) { | |
1090 | write(plot->fd, plot->legend_lines[i], | |
1091 | strlen(plot->legend_lines[i])); | |
1092 | free(plot->legend_lines[i]); | |
1093 | } | |
1094 | free(plot->legend_lines); | |
e199d546 | 1095 | plot->legend_lines = NULL; |
9e066e23 | 1096 | plot->legend_index = 0; |
9e066e23 CM |
1097 | } |
1098 | ||
1099 | void svg_add_legend(struct plot *plot, char *text, char *extra, char *color) | |
1100 | { | |
1101 | int legend_line_x = axis_x_off(graph_width) + legend_x_off; | |
1102 | int legend_line_y = axis_y_off(graph_height) + legend_y_off; | |
1103 | ||
1104 | if (!text && (!extra || strlen(extra) == 0)) | |
1105 | return; | |
1106 | ||
1107 | legend_line_y += plot->legend_index * legend_font_size + legend_font_size / 2; | |
1108 | snprintf(line, line_len, "<path d=\"M %d %d h 8\" stroke=\"%s\" stroke-width=\"8\" " | |
1109 | "filter=\"url(#labelshadow)\"/> " | |
1110 | "<text x=\"%d\" y=\"%d\" font-family=\"%s\" font-size=\"%d\" " | |
1111 | "fill=\"black\" style=\"text-anchor: left\">%s%s</text>\n", | |
1112 | legend_line_x, legend_line_y, | |
1113 | color, legend_line_x + 13, | |
1114 | legend_line_y + 4, font_family, legend_font_size, | |
1115 | text, extra); | |
1116 | ||
1117 | plot->legend_lines[plot->legend_index++] = strdup(line); | |
1118 | } | |
1119 | ||
1120 | void set_legend_width(int longest_str) | |
1121 | { | |
1122 | if (longest_str) | |
1123 | legend_width = longest_str * (legend_font_size * 3 / 4) + 25; | |
1124 | else | |
1125 | legend_width = 0; | |
1126 | } | |
1127 | ||
1128 | void set_rolling_avg(int rolling) | |
1129 | { | |
1130 | rolling_avg_secs = rolling; | |
1131 | } | |
1132 | ||
ba758825 CM |
1133 | void set_io_graph_scale(int scale) |
1134 | { | |
1135 | io_graph_scale = scale; | |
1136 | } | |
1137 | ||
1138 | void set_graph_size(int width, int height) | |
1139 | { | |
1140 | graph_width = width; | |
1141 | graph_height = height; | |
1142 | } | |
1143 | ||
1144 | void get_graph_size(int *width, int *height) | |
1145 | { | |
1146 | *width = graph_width; | |
1147 | *height = graph_height; | |
1148 | } | |
1149 | ||
1150 | void set_graph_height(int h) | |
1151 | { | |
1152 | graph_height = h; | |
1153 | } | |
1154 | void set_graph_width(int w) | |
1155 | { | |
1156 | graph_width = w; | |
1157 | } |