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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / tools / perf / ui / browser.c
blobd11541d4d7d7ffcddad8d093b2e79f697967292a
1 #include "../util.h"
2 #include "../cache.h"
3 #include "../../perf.h"
4 #include "libslang.h"
5 #include "ui.h"
6 #include "util.h"
7 #include <linux/compiler.h>
8 #include <linux/list.h>
9 #include <linux/rbtree.h>
10 #include <stdlib.h>
11 #include <sys/ttydefaults.h>
12 #include "browser.h"
13 #include "helpline.h"
14 #include "keysyms.h"
15 #include "../color.h"
16
17 static int ui_browser__percent_color(struct ui_browser *browser,
18 double percent, bool current)
19 {
20 if (current && (!browser->use_navkeypressed || browser->navkeypressed))
21 return HE_COLORSET_SELECTED;
22 if (percent >= MIN_RED)
23 return HE_COLORSET_TOP;
24 if (percent >= MIN_GREEN)
25 return HE_COLORSET_MEDIUM;
26 return HE_COLORSET_NORMAL;
27 }
28
29 int ui_browser__set_color(struct ui_browser *browser, int color)
30 {
31 int ret = browser->current_color;
32 browser->current_color = color;
33 SLsmg_set_color(color);
34 return ret;
35 }
36
37 void ui_browser__set_percent_color(struct ui_browser *browser,
38 double percent, bool current)
39 {
40 int color = ui_browser__percent_color(browser, percent, current);
41 ui_browser__set_color(browser, color);
42 }
43
44 void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
45 {
46 SLsmg_gotorc(browser->y + y, browser->x + x);
47 }
48
49 static struct list_head *
50 ui_browser__list_head_filter_entries(struct ui_browser *browser,
51 struct list_head *pos)
52 {
53 do {
54 if (!browser->filter || !browser->filter(browser, pos))
55 return pos;
56 pos = pos->next;
57 } while (pos != browser->entries);
58
59 return NULL;
60 }
61
62 static struct list_head *
63 ui_browser__list_head_filter_prev_entries(struct ui_browser *browser,
64 struct list_head *pos)
65 {
66 do {
67 if (!browser->filter || !browser->filter(browser, pos))
68 return pos;
69 pos = pos->prev;
70 } while (pos != browser->entries);
71
72 return NULL;
73 }
74
75 void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence)
76 {
77 struct list_head *head = browser->entries;
78 struct list_head *pos;
79
80 if (browser->nr_entries == 0)
81 return;
82
83 switch (whence) {
84 case SEEK_SET:
85 pos = ui_browser__list_head_filter_entries(browser, head->next);
86 break;
87 case SEEK_CUR:
88 pos = browser->top;
89 break;
90 case SEEK_END:
91 pos = ui_browser__list_head_filter_prev_entries(browser, head->prev);
92 break;
93 default:
94 return;
95 }
96
97 assert(pos != NULL);
98
99 if (offset > 0) {
100 while (offset-- != 0)
101 pos = ui_browser__list_head_filter_entries(browser, pos->next);
102 } else {
103 while (offset++ != 0)
104 pos = ui_browser__list_head_filter_prev_entries(browser, pos->prev);
105 }
106
107 browser->top = pos;
108 }
109
110 void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence)
111 {
112 struct rb_root *root = browser->entries;
113 struct rb_node *nd;
114
115 switch (whence) {
116 case SEEK_SET:
117 nd = rb_first(root);
118 break;
119 case SEEK_CUR:
120 nd = browser->top;
121 break;
122 case SEEK_END:
123 nd = rb_last(root);
124 break;
125 default:
126 return;
127 }
128
129 if (offset > 0) {
130 while (offset-- != 0)
131 nd = rb_next(nd);
132 } else {
133 while (offset++ != 0)
134 nd = rb_prev(nd);
135 }
136
137 browser->top = nd;
138 }
139
140 unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser)
141 {
142 struct rb_node *nd;
143 int row = 0;
144
145 if (browser->top == NULL)
146 browser->top = rb_first(browser->entries);
147
148 nd = browser->top;
149
150 while (nd != NULL) {
151 ui_browser__gotorc(browser, row, 0);
152 browser->write(browser, nd, row);
153 if (++row == browser->height)
154 break;
155 nd = rb_next(nd);
156 }
157
158 return row;
159 }
160
161 bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row)
162 {
163 return browser->top_idx + row == browser->index;
164 }
165
166 void ui_browser__refresh_dimensions(struct ui_browser *browser)
167 {
168 browser->width = SLtt_Screen_Cols - 1;
169 browser->height = SLtt_Screen_Rows - 2;
170 browser->y = 1;
171 browser->x = 0;
172 }
173
174 void ui_browser__handle_resize(struct ui_browser *browser)
175 {
176 ui__refresh_dimensions(false);
177 ui_browser__show(browser, browser->title, ui_helpline__current);
178 ui_browser__refresh(browser);
179 }
180
181 int ui_browser__warning(struct ui_browser *browser, int timeout,
182 const char *format, ...)
183 {
184 va_list args;
185 char *text;
186 int key = 0, err;
187
188 va_start(args, format);
189 err = vasprintf(&text, format, args);
190 va_end(args);
191
192 if (err < 0) {
193 va_start(args, format);
194 ui_helpline__vpush(format, args);
195 va_end(args);
196 } else {
197 while ((key == ui__question_window("Warning!", text,
198 "Press any key...",
199 timeout)) == K_RESIZE)
200 ui_browser__handle_resize(browser);
201 free(text);
202 }
203
204 return key;
205 }
206
207 int ui_browser__help_window(struct ui_browser *browser, const char *text)
208 {
209 int key;
210
211 while ((key = ui__help_window(text)) == K_RESIZE)
212 ui_browser__handle_resize(browser);
213
214 return key;
215 }
216
217 bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text)
218 {
219 int key;
220
221 while ((key = ui__dialog_yesno(text)) == K_RESIZE)
222 ui_browser__handle_resize(browser);
223
224 return key == K_ENTER || toupper(key) == 'Y';
225 }
226
227 void ui_browser__reset_index(struct ui_browser *browser)
228 {
229 browser->index = browser->top_idx = 0;
230 browser->seek(browser, 0, SEEK_SET);
231 }
232
233 void __ui_browser__show_title(struct ui_browser *browser, const char *title)
234 {
235 SLsmg_gotorc(0, 0);
236 ui_browser__set_color(browser, HE_COLORSET_ROOT);
237 slsmg_write_nstring(title, browser->width + 1);
238 }
239
240 void ui_browser__show_title(struct ui_browser *browser, const char *title)
241 {
242 pthread_mutex_lock(&ui__lock);
243 __ui_browser__show_title(browser, title);
244 pthread_mutex_unlock(&ui__lock);
245 }
246
247 int ui_browser__show(struct ui_browser *browser, const char *title,
248 const char *helpline, ...)
249 {
250 int err;
251 va_list ap;
252
253 ui_browser__refresh_dimensions(browser);
254
255 pthread_mutex_lock(&ui__lock);
256 __ui_browser__show_title(browser, title);
257
258 browser->title = title;
259 zfree(&browser->helpline);
260
261 va_start(ap, helpline);
262 err = vasprintf(&browser->helpline, helpline, ap);
263 va_end(ap);
264 if (err > 0)
265 ui_helpline__push(browser->helpline);
266 pthread_mutex_unlock(&ui__lock);
267 return err ? 0 : -1;
268 }
269
270 void ui_browser__hide(struct ui_browser *browser)
271 {
272 pthread_mutex_lock(&ui__lock);
273 ui_helpline__pop();
274 zfree(&browser->helpline);
275 pthread_mutex_unlock(&ui__lock);
276 }
277
278 static void ui_browser__scrollbar_set(struct ui_browser *browser)
279 {
280 int height = browser->height, h = 0, pct = 0,
281 col = browser->width,
282 row = browser->y - 1;
283
284 if (browser->nr_entries > 1) {
285 pct = ((browser->index * (browser->height - 1)) /
286 (browser->nr_entries - 1));
287 }
288
289 SLsmg_set_char_set(1);
290
291 while (h < height) {
292 ui_browser__gotorc(browser, row++, col);
293 SLsmg_write_char(h == pct ? SLSMG_DIAMOND_CHAR : SLSMG_CKBRD_CHAR);
294 ++h;
295 }
296
297 SLsmg_set_char_set(0);
298 }
299
300 static int __ui_browser__refresh(struct ui_browser *browser)
301 {
302 int row;
303 int width = browser->width;
304
305 row = browser->refresh(browser);
306 ui_browser__set_color(browser, HE_COLORSET_NORMAL);
307
308 if (!browser->use_navkeypressed || browser->navkeypressed)
309 ui_browser__scrollbar_set(browser);
310 else
311 width += 1;
312
313 SLsmg_fill_region(browser->y + row, browser->x,
314 browser->height - row, width, ' ');
315
316 return 0;
317 }
318
319 int ui_browser__refresh(struct ui_browser *browser)
320 {
321 pthread_mutex_lock(&ui__lock);
322 __ui_browser__refresh(browser);
323 pthread_mutex_unlock(&ui__lock);
324
325 return 0;
326 }
327
328 /*
329 * Here we're updating nr_entries _after_ we started browsing, i.e. we have to
330 * forget about any reference to any entry in the underlying data structure,
331 * that is why we do a SEEK_SET. Think about 'perf top' in the hists browser
332 * after an output_resort and hist decay.
333 */
334 void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries)
335 {
336 off_t offset = nr_entries - browser->nr_entries;
337
338 browser->nr_entries = nr_entries;
339
340 if (offset < 0) {
341 if (browser->top_idx < (u64)-offset)
342 offset = -browser->top_idx;
343
344 browser->index += offset;
345 browser->top_idx += offset;
346 }
347
348 browser->top = NULL;
349 browser->seek(browser, browser->top_idx, SEEK_SET);
350 }
351
352 int ui_browser__run(struct ui_browser *browser, int delay_secs)
353 {
354 int err, key;
355
356 while (1) {
357 off_t offset;
358
359 pthread_mutex_lock(&ui__lock);
360 err = __ui_browser__refresh(browser);
361 SLsmg_refresh();
362 pthread_mutex_unlock(&ui__lock);
363 if (err < 0)
364 break;
365
366 key = ui__getch(delay_secs);
367
368 if (key == K_RESIZE) {
369 ui__refresh_dimensions(false);
370 ui_browser__refresh_dimensions(browser);
371 __ui_browser__show_title(browser, browser->title);
372 ui_helpline__puts(browser->helpline);
373 continue;
374 }
375
376 if (browser->use_navkeypressed && !browser->navkeypressed) {
377 if (key == K_DOWN || key == K_UP ||
378 key == K_PGDN || key == K_PGUP ||
379 key == K_HOME || key == K_END ||
380 key == ' ') {
381 browser->navkeypressed = true;
382 continue;
383 } else
384 return key;
385 }
386
387 switch (key) {
388 case K_DOWN:
389 if (browser->index == browser->nr_entries - 1)
390 break;
391 ++browser->index;
392 if (browser->index == browser->top_idx + browser->height) {
393 ++browser->top_idx;
394 browser->seek(browser, +1, SEEK_CUR);
395 }
396 break;
397 case K_UP:
398 if (browser->index == 0)
399 break;
400 --browser->index;
401 if (browser->index < browser->top_idx) {
402 --browser->top_idx;
403 browser->seek(browser, -1, SEEK_CUR);
404 }
405 break;
406 case K_PGDN:
407 case ' ':
408 if (browser->top_idx + browser->height > browser->nr_entries - 1)
409 break;
410
411 offset = browser->height;
412 if (browser->index + offset > browser->nr_entries - 1)
413 offset = browser->nr_entries - 1 - browser->index;
414 browser->index += offset;
415 browser->top_idx += offset;
416 browser->seek(browser, +offset, SEEK_CUR);
417 break;
418 case K_PGUP:
419 if (browser->top_idx == 0)
420 break;
421
422 if (browser->top_idx < browser->height)
423 offset = browser->top_idx;
424 else
425 offset = browser->height;
426
427 browser->index -= offset;
428 browser->top_idx -= offset;
429 browser->seek(browser, -offset, SEEK_CUR);
430 break;
431 case K_HOME:
432 ui_browser__reset_index(browser);
433 break;
434 case K_END:
435 offset = browser->height - 1;
436 if (offset >= browser->nr_entries)
437 offset = browser->nr_entries - 1;
438
439 browser->index = browser->nr_entries - 1;
440 browser->top_idx = browser->index - offset;
441 browser->seek(browser, -offset, SEEK_END);
442 break;
443 default:
444 return key;
445 }
446 }
447 return -1;
448 }
449
450 unsigned int ui_browser__list_head_refresh(struct ui_browser *browser)
451 {
452 struct list_head *pos;
453 struct list_head *head = browser->entries;
454 int row = 0;
455
456 if (browser->top == NULL || browser->top == browser->entries)
457 browser->top = ui_browser__list_head_filter_entries(browser, head->next);
458
459 pos = browser->top;
460
461 list_for_each_from(pos, head) {
462 if (!browser->filter || !browser->filter(browser, pos)) {
463 ui_browser__gotorc(browser, row, 0);
464 browser->write(browser, pos, row);
465 if (++row == browser->height)
466 break;
467 }
468 }
469
470 return row;
471 }
472
473 static struct ui_browser_colorset {
474 const char *name, *fg, *bg;
475 int colorset;
476 } ui_browser__colorsets[] = {
477 {
478 .colorset = HE_COLORSET_TOP,
479 .name = "top",
480 .fg = "red",
481 .bg = "default",
482 },
483 {
484 .colorset = HE_COLORSET_MEDIUM,
485 .name = "medium",
486 .fg = "green",
487 .bg = "default",
488 },
489 {
490 .colorset = HE_COLORSET_NORMAL,
491 .name = "normal",
492 .fg = "default",
493 .bg = "default",
494 },
495 {
496 .colorset = HE_COLORSET_SELECTED,
497 .name = "selected",
498 .fg = "black",
499 .bg = "lightgray",
500 },
501 {
502 .colorset = HE_COLORSET_CODE,
503 .name = "code",
504 .fg = "blue",
505 .bg = "default",
506 },
507 {
508 .colorset = HE_COLORSET_ADDR,
509 .name = "addr",
510 .fg = "magenta",
511 .bg = "default",
512 },
513 {
514 .colorset = HE_COLORSET_ROOT,
515 .name = "root",
516 .fg = "white",
517 .bg = "blue",
518 },
519 {
520 .name = NULL,
521 }
522 };
523
524
525 static int ui_browser__color_config(const char *var, const char *value,
526 void *data __maybe_unused)
527 {
528 char *fg = NULL, *bg;
529 int i;
530
531 /* same dir for all commands */
532 if (prefixcmp(var, "colors.") != 0)
533 return 0;
534
535 for (i = 0; ui_browser__colorsets[i].name != NULL; ++i) {
536 const char *name = var + 7;
537
538 if (strcmp(ui_browser__colorsets[i].name, name) != 0)
539 continue;
540
541 fg = strdup(value);
542 if (fg == NULL)
543 break;
544
545 bg = strchr(fg, ',');
546 if (bg == NULL)
547 break;
548
549 *bg = '\0';
550 while (isspace(*++bg));
551 ui_browser__colorsets[i].bg = bg;
552 ui_browser__colorsets[i].fg = fg;
553 return 0;
554 }
555
556 free(fg);
557 return -1;
558 }
559
560 void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence)
561 {
562 switch (whence) {
563 case SEEK_SET:
564 browser->top = browser->entries;
565 break;
566 case SEEK_CUR:
567 browser->top = browser->top + browser->top_idx + offset;
568 break;
569 case SEEK_END:
570 browser->top = browser->top + browser->nr_entries - 1 + offset;
571 break;
572 default:
573 return;
574 }
575 }
576
577 unsigned int ui_browser__argv_refresh(struct ui_browser *browser)
578 {
579 unsigned int row = 0, idx = browser->top_idx;
580 char **pos;
581
582 if (browser->top == NULL)
583 browser->top = browser->entries;
584
585 pos = (char **)browser->top;
586 while (idx < browser->nr_entries) {
587 if (!browser->filter || !browser->filter(browser, *pos)) {
588 ui_browser__gotorc(browser, row, 0);
589 browser->write(browser, pos, row);
590 if (++row == browser->height)
591 break;
592 }
593
594 ++idx;
595 ++pos;
596 }
597
598 return row;
599 }
600
601 void __ui_browser__vline(struct ui_browser *browser, unsigned int column,
602 u16 start, u16 end)
603 {
604 SLsmg_set_char_set(1);
605 ui_browser__gotorc(browser, start, column);
606 SLsmg_draw_vline(end - start + 1);
607 SLsmg_set_char_set(0);
608 }
609
610 void ui_browser__write_graph(struct ui_browser *browser __maybe_unused,
611 int graph)
612 {
613 SLsmg_set_char_set(1);
614 SLsmg_write_char(graph);
615 SLsmg_set_char_set(0);
616 }
617
618 static void __ui_browser__line_arrow_up(struct ui_browser *browser,
619 unsigned int column,
620 u64 start, u64 end)
621 {
622 unsigned int row, end_row;
623
624 SLsmg_set_char_set(1);
625
626 if (start < browser->top_idx + browser->height) {
627 row = start - browser->top_idx;
628 ui_browser__gotorc(browser, row, column);
629 SLsmg_write_char(SLSMG_LLCORN_CHAR);
630 ui_browser__gotorc(browser, row, column + 1);
631 SLsmg_draw_hline(2);
632
633 if (row-- == 0)
634 goto out;
635 } else
636 row = browser->height - 1;
637
638 if (end > browser->top_idx)
639 end_row = end - browser->top_idx;
640 else
641 end_row = 0;
642
643 ui_browser__gotorc(browser, end_row, column);
644 SLsmg_draw_vline(row - end_row + 1);
645
646 ui_browser__gotorc(browser, end_row, column);
647 if (end >= browser->top_idx) {
648 SLsmg_write_char(SLSMG_ULCORN_CHAR);
649 ui_browser__gotorc(browser, end_row, column + 1);
650 SLsmg_write_char(SLSMG_HLINE_CHAR);
651 ui_browser__gotorc(browser, end_row, column + 2);
652 SLsmg_write_char(SLSMG_RARROW_CHAR);
653 }
654 out:
655 SLsmg_set_char_set(0);
656 }
657
658 static void __ui_browser__line_arrow_down(struct ui_browser *browser,
659 unsigned int column,
660 u64 start, u64 end)
661 {
662 unsigned int row, end_row;
663
664 SLsmg_set_char_set(1);
665
666 if (start >= browser->top_idx) {
667 row = start - browser->top_idx;
668 ui_browser__gotorc(browser, row, column);
669 SLsmg_write_char(SLSMG_ULCORN_CHAR);
670 ui_browser__gotorc(browser, row, column + 1);
671 SLsmg_draw_hline(2);
672
673 if (row++ == 0)
674 goto out;
675 } else
676 row = 0;
677
678 if (end >= browser->top_idx + browser->height)
679 end_row = browser->height - 1;
680 else
681 end_row = end - browser->top_idx;
682
683 ui_browser__gotorc(browser, row, column);
684 SLsmg_draw_vline(end_row - row + 1);
685
686 ui_browser__gotorc(browser, end_row, column);
687 if (end < browser->top_idx + browser->height) {
688 SLsmg_write_char(SLSMG_LLCORN_CHAR);
689 ui_browser__gotorc(browser, end_row, column + 1);
690 SLsmg_write_char(SLSMG_HLINE_CHAR);
691 ui_browser__gotorc(browser, end_row, column + 2);
692 SLsmg_write_char(SLSMG_RARROW_CHAR);
693 }
694 out:
695 SLsmg_set_char_set(0);
696 }
697
698 void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
699 u64 start, u64 end)
700 {
701 if (start > end)
702 __ui_browser__line_arrow_up(browser, column, start, end);
703 else
704 __ui_browser__line_arrow_down(browser, column, start, end);
705 }
706
707 void ui_browser__init(void)
708 {
709 int i = 0;
710
711 perf_config(ui_browser__color_config, NULL);
712
713 while (ui_browser__colorsets[i].name) {
714 struct ui_browser_colorset *c = &ui_browser__colorsets[i++];
715 sltt_set_color(c->colorset, c->name, c->fg, c->bg);
716 }
717
718 annotate_browser__init();
719 }
Linux with added FPC-III support