allow return to previous view with enter
[lttngtop.git] / src / cursesdisplay.c
1 /*
2 * Copyright (C) 2011 Julien Desfossez
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * 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 along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 */
17
18 #include <stdio.h>
19 #include <stdlib.h>
20 #include <signal.h>
21 #include <string.h>
22 #include <ncurses.h>
23 #include <panel.h>
24 #include <pthread.h>
25 #include <semaphore.h>
26
27 #include "cursesdisplay.h"
28 #include "lttngtoptypes.h"
29 #include "iostreamtop.h"
30 #include "common.h"
31
32 #define DEFAULT_DELAY 15
33 #define MAX_LINE_LENGTH 50
34 #define MAX_LOG_LINES 4
35
36 /* to prevent concurrent updates of the different windows */
37 sem_t update_display_sem;
38
39 char *termtype;
40 WINDOW *footer, *header, *center, *status;
41 WINDOW *perf_panel_window = NULL;
42 PANEL *perf_panel, *main_panel;
43
44 int perf_panel_visible = 0;
45 int perf_line_selected = 0;
46
47 int last_display_index, currently_displayed_index;
48
49 struct processtop *selected_process = NULL;
50 int selected_tid;
51 char *selected_comm;
52 int selected_ret;
53
54 int selected_line = 0; /* select bar position */
55 int selected_in_list = 0; /* selection relative to the whole list */
56 int list_offset = 0; /* first index in the list to display (scroll) */
57 int nb_log_lines = 0;
58 char log_lines[MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES];
59
60 int max_elements = 80;
61
62 int toggle_threads = -1;
63 int toggle_pause = -1;
64 int toggle_tree = -1;
65
66 int max_center_lines;
67
68 pthread_t keyboard_thread;
69
70 void reset_ncurses()
71 {
72 curs_set(1);
73 endwin();
74 exit(0);
75 }
76
77 static void handle_sigterm(int signal)
78 {
79 reset_ncurses();
80 }
81
82 void init_screen()
83 {
84 initscr();
85 noecho();
86 halfdelay(DEFAULT_DELAY);
87 nonl();
88 intrflush(stdscr, false);
89 keypad(stdscr, true);
90 curs_set(0);
91
92 if (has_colors()) {
93 start_color();
94 init_pair(1, COLOR_RED, COLOR_BLACK); /* - */
95 init_pair(2, COLOR_GREEN, COLOR_BLACK); /* + */
96 init_pair(3, COLOR_BLACK, COLOR_WHITE); /* keys */
97 init_pair(4, COLOR_WHITE, COLOR_GREEN); /* keys activated */
98 init_pair(5, COLOR_WHITE, COLOR_BLUE); /* select line */
99 }
100 termtype = getenv("TERM");
101 if (!strcmp(termtype, "xterm") || !strcmp(termtype, "xterm-color") ||
102 !strcmp(termtype, "vt220")) {
103 define_key("\033[H", KEY_HOME);
104 define_key("\033[F", KEY_END);
105 define_key("\033OP", KEY_F(1));
106 define_key("\033OQ", KEY_F(2));
107 define_key("\033OR", KEY_F(3));
108 define_key("\033OS", KEY_F(4));
109 define_key("\0330U", KEY_F(6));
110 define_key("\033[11~", KEY_F(1));
111 define_key("\033[12~", KEY_F(2));
112 define_key("\033[13~", KEY_F(3));
113 define_key("\033[14~", KEY_F(4));
114 define_key("\033[16~", KEY_F(6));
115 define_key("\033[17;2~", KEY_F(18));
116 }
117 signal(SIGTERM, handle_sigterm);
118 mousemask(BUTTON1_CLICKED, NULL);
119 refresh();
120 }
121
122 WINDOW *create_window(int height, int width, int startx, int starty)
123 {
124 WINDOW *win;
125 win = newwin(height, width, startx, starty);
126 box(win, 0 , 0);
127 wrefresh(win);
128 return win;
129 }
130
131 WINDOW *create_window_no_border(int height, int width, int startx, int starty)
132 {
133 WINDOW *win;
134 win = newwin(height, width, startx, starty);
135 wrefresh(win);
136 return win;
137 }
138
139 void print_digit(WINDOW *win, int digit)
140 {
141 if (digit < 0) {
142 wattron(win, COLOR_PAIR(1));
143 wprintw(win, "%d", digit);
144 wattroff(win, COLOR_PAIR(1));
145 } else if (digit > 0) {
146 wattron(win, COLOR_PAIR(2));
147 wprintw(win, "+%d", digit);
148 wattroff(win, COLOR_PAIR(2));
149 } else {
150 wprintw(win, "0");
151 }
152 }
153
154 void print_digits(WINDOW *win, int first, int second)
155 {
156 wprintw(win, "(");
157 print_digit(win, first);
158 wprintw(win, ", ");
159 print_digit(win, second);
160 wprintw(win, ")");
161 }
162
163 void print_headers(int line, char *desc, int value, int first, int second)
164 {
165 wattron(header, A_BOLD);
166 mvwprintw(header, line, 4, "%s", desc);
167 wattroff(header, A_BOLD);
168 mvwprintw(header, line, 16, "%d", value);
169 wmove(header, line, 24);
170 print_digits(header, first, second);
171 wmove(header, line, 40);
172 }
173
174 void set_window_title(WINDOW *win, char *title)
175 {
176 wattron(win, A_BOLD);
177 mvwprintw(win, 0, 1, title);
178 wattroff(win, A_BOLD);
179 }
180
181 void print_log(char *str)
182 {
183 int i;
184 int current_line = 1;
185 int current_char = 1;
186 char *tmp, *tmp2;
187 /* rotate the line buffer */
188 if (nb_log_lines >= MAX_LOG_LINES) {
189 tmp = strndup(log_lines, MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES);
190 tmp2 = strchr(tmp, '\n');
191 memset(log_lines, '\0', strlen(log_lines));
192 strncat(log_lines, tmp2 + 1, strlen(tmp2) - 1);
193 log_lines[strlen(log_lines)] = '\n';
194 log_lines[strlen(log_lines)] = '\0';
195 free(tmp);
196 }
197 nb_log_lines++;
198
199 strncat(log_lines, str, MAX_LINE_LENGTH - 1);
200
201 if (nb_log_lines < MAX_LOG_LINES)
202 log_lines[strlen(log_lines)] = '\n';
203 log_lines[strlen(log_lines)] = '\0';
204
205 werase(status);
206 box(status, 0 , 0);
207 set_window_title(status, "Status");
208 for (i = 0; i < strlen(log_lines); i++) {
209 if (log_lines[i] == '\n') {
210 wmove(status, ++current_line, 1);
211 current_char = 1;
212 } else {
213 mvwprintw(status, current_line, current_char++, "%c",
214 log_lines[i]);
215 }
216 }
217 wrefresh(status);
218 }
219
220 void print_key(WINDOW *win, char *key, char *desc, int toggle)
221 {
222 int pair;
223 if (toggle > 0)
224 pair = 4;
225 else
226 pair = 3;
227 wattron(win, COLOR_PAIR(pair));
228 wprintw(footer, "%s", key);
229 wattroff(win, COLOR_PAIR(pair));
230 wprintw(footer, ":%s", desc);
231 }
232
233 void update_footer()
234 {
235 sem_wait(&update_display_sem);
236 werase(footer);
237 wmove(footer, 1, 1);
238 print_key(footer, "F2", "CPUtop ", current_view == cpu);
239 print_key(footer, "F3", "PerfTop ", current_view == perf);
240 print_key(footer, "F4", "IOTop ", current_view == iostream);
241 print_key(footer, "Enter", "Details ", current_view == process_details);
242 print_key(footer, "q", "Quit | ", 0);
243 print_key(footer, "P", "Perf Pref ", 0);
244 print_key(footer, "p", "Pause ", toggle_pause);
245
246 wrefresh(footer);
247 sem_post(&update_display_sem);
248 }
249
250 void basic_header()
251 {
252 werase(header);
253 box(header, 0 , 0);
254 set_window_title(header, "Statistics for interval [gathering data...[");
255 wattron(header, A_BOLD);
256 mvwprintw(header, 1, 4, "CPUs");
257 mvwprintw(header, 2, 4, "Threads");
258 mvwprintw(header, 3, 4, "FDs");
259 wattroff(header, A_BOLD);
260 wrefresh(header);
261 }
262
263 struct tm format_timestamp(uint64_t timestamp)
264 {
265 struct tm tm;
266 uint64_t ts_sec = 0, ts_nsec;
267 time_t time_s;
268
269 ts_nsec = timestamp;
270 ts_sec += ts_nsec / NSEC_PER_SEC;
271 ts_nsec = ts_nsec % NSEC_PER_SEC;
272
273 time_s = (time_t) ts_sec;
274
275 localtime_r(&time_s, &tm);
276
277 return tm;
278 }
279
280 void update_header()
281 {
282 struct tm start, end;
283 uint64_t ts_nsec_start, ts_nsec_end;
284
285 ts_nsec_start = data->start % NSEC_PER_SEC;
286 start = format_timestamp(data->start);
287
288 ts_nsec_end = data->end % NSEC_PER_SEC;
289 end = format_timestamp(data->end);
290
291 werase(header);
292 box(header, 0 , 0);
293 set_window_title(header, "Statistics for interval ");
294 wattron(header, A_BOLD);
295
296 wprintw(header, "[%02d:%02d:%02d.%09" PRIu64 ", %02d:%02d:%02d.%09" PRIu64 "[",
297 start.tm_hour, start.tm_min, start.tm_sec, ts_nsec_start,
298 end.tm_hour, end.tm_min, end.tm_sec, ts_nsec_end);
299 mvwprintw(header, 1, 4, "CPUs");
300 wattroff(header, A_BOLD);
301 wprintw(header, "\t%d\t(max/cpu : %0.2f%)", data->cpu_table->len,
302 100.0/data->cpu_table->len);
303 print_headers(2, "Threads", data->nbthreads, data->nbnewthreads,
304 -1*(data->nbdeadthreads));
305 print_headers(3, "FDs", data->nbfiles, data->nbnewfiles,
306 -1*(data->nbclosedfiles));
307 mvwprintw(header, 3, 43, "N/A kbytes/sec");
308 wrefresh(header);
309 }
310
311 gint sort_by_cpu_desc(gconstpointer p1, gconstpointer p2)
312 {
313 struct processtop *n1 = *(struct processtop **)p1;
314 struct processtop *n2 = *(struct processtop **)p2;
315 unsigned long totaln1 = n1->totalcpunsec;
316 unsigned long totaln2 = n2->totalcpunsec;
317
318 if (totaln1 < totaln2)
319 return 1;
320 if (totaln1 == totaln2)
321 return 0;
322 return -1;
323 }
324
325 gint sort_by_cpu_group_by_threads_desc(gconstpointer p1, gconstpointer p2)
326 {
327 struct processtop *n1 = *(struct processtop **)p1;
328 struct processtop *n2 = *(struct processtop **)p2;
329 unsigned long totaln1 = n1->threadstotalcpunsec;
330 unsigned long totaln2 = n2->threadstotalcpunsec;
331
332 if (totaln1 < totaln2)
333 return 1;
334 if (totaln1 == totaln2)
335 return 0;
336 return -1;
337 }
338
339 void update_cputop_display()
340 {
341 int i;
342 int header_offset = 2;
343 struct processtop *tmp;
344 unsigned long elapsed;
345 double maxcputime;
346 int nblinedisplayed = 0;
347 int current_line = 0;
348
349 elapsed = data->end - data->start;
350 maxcputime = elapsed * data->cpu_table->len / 100.0;
351
352 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
353
354 set_window_title(center, "CPU Top");
355 wattron(center, A_BOLD);
356 mvwprintw(center, 1, 1, "CPU(%)");
357 mvwprintw(center, 1, 12, "TGID");
358 mvwprintw(center, 1, 22, "PID");
359 mvwprintw(center, 1, 32, "NAME");
360 wattroff(center, A_BOLD);
361
362 max_center_lines = LINES - 5 - 7 - 1 - header_offset;
363
364 /* iterate the process (thread) list */
365 for (i = list_offset; i < data->process_table->len &&
366 nblinedisplayed < max_center_lines; i++) {
367 tmp = g_ptr_array_index(data->process_table, i);
368
369 if (current_line == selected_line) {
370 selected_process = tmp;
371 selected_tid = tmp->tid;
372 selected_comm = tmp->comm;
373 wattron(center, COLOR_PAIR(5));
374 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
375 }
376 /* CPU(%) */
377 mvwprintw(center, current_line + header_offset, 1, "%1.2f",
378 tmp->totalcpunsec / maxcputime);
379 /* TGID */
380 mvwprintw(center, current_line + header_offset, 12, "%d", tmp->pid);
381 /* PID */
382 mvwprintw(center, current_line + header_offset, 22, "%d", tmp->tid);
383 /* NAME */
384 mvwprintw(center, current_line + header_offset, 32, "%s", tmp->comm);
385 wattroff(center, COLOR_PAIR(5));
386 nblinedisplayed++;
387 current_line++;
388 }
389 }
390
391 gint sort_perf(gconstpointer p1, gconstpointer p2, gpointer key)
392 {
393 struct processtop *n1 = *(struct processtop **) p1;
394 struct processtop *n2 = *(struct processtop **) p2;
395
396 struct perfcounter *tmp1, *tmp2;
397 unsigned long totaln2 = 0;
398 unsigned long totaln1 = 0;
399
400 if (!key)
401 return 0;
402
403 tmp1 = g_hash_table_lookup(n1->perf, key);
404 if (!tmp1)
405 totaln1 = 0;
406 else
407 totaln1 = tmp1->count;
408
409 tmp2 = g_hash_table_lookup(n2->perf, key);
410 if (!tmp2)
411 totaln2 = 0;
412 else
413 totaln2 = tmp2->count;
414
415 if (totaln1 < totaln2)
416 return 1;
417 if (totaln1 == totaln2) {
418 totaln1 = n1->tid;
419 totaln2 = n2->tid;
420 if (totaln1 < totaln2)
421 return 1;
422 return -1;
423 }
424 return -1;
425 }
426
427 void print_key_title(char *key, int line)
428 {
429 wattron(center, A_BOLD);
430 mvwprintw(center, line, 1, "%s\t", key);
431 wattroff(center, A_BOLD);
432 }
433
434 void update_process_details()
435 {
436 unsigned long elapsed;
437 double maxcputime;
438 struct processtop *tmp = find_process_tid(data, selected_tid, selected_comm);
439 struct files *file_tmp;
440 int i, j = 0;
441
442 set_window_title(center, "Process details");
443
444
445 elapsed = data->end - data->start;
446 maxcputime = elapsed * data->cpu_table->len / 100.0;
447
448 print_key_title("Name", 1);
449 wprintw(center, "%s", selected_comm);
450 print_key_title("TID", 2);
451 wprintw(center, "%d", selected_tid);
452 if (!tmp) {
453 print_key_title("Does not exit at this time", 3);
454 return;
455 }
456
457 print_key_title("PID", 3);
458 wprintw(center, "%d", tmp->pid);
459 print_key_title("PPID", 4);
460 wprintw(center, "%d", tmp->ppid);
461 print_key_title("CPU", 5);
462 wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
463
464 print_key_title("READ B/s", 6);
465 wprintw(center, "%d", tmp->fileread);
466
467 print_key_title("WRITE B/s", 7);
468 wprintw(center, "%d", tmp->filewrite);
469
470 wattron(center, A_BOLD);
471 mvwprintw(center, 8, 1, "FD");
472 mvwprintw(center, 8, 12, "READ");
473 mvwprintw(center, 8, 22, "WRITE");
474 mvwprintw(center, 8, 32, "FILENAME");
475 wattroff(center, A_BOLD);
476
477 for (i = 0; i < tmp->process_files_table->len; i++) {
478 file_tmp = get_file(tmp, i);
479 if (file_tmp != NULL) {
480 mvwprintw(center, 9 + j, 1, "%d", i);
481 mvwprintw(center, 9 + j, 12, "%d", file_tmp->read);
482 mvwprintw(center, 9 + j, 22, "%d", file_tmp->write);
483 mvwprintw(center, 9 + j, 32, "%s", file_tmp->name);
484 j++;
485 }
486 }
487 }
488
489 void update_perf()
490 {
491 int i;
492 int nblinedisplayed = 0;
493 int current_line = 0;
494 struct processtop *tmp;
495 int header_offset = 2;
496 int perf_row = 40;
497 struct perfcounter *perfn1, *perfn2;
498 char *perf_key = NULL;
499 int value;
500 GHashTableIter iter;
501 gpointer key;
502
503 set_window_title(center, "Perf Top");
504 wattron(center, A_BOLD);
505 mvwprintw(center, 1, 1, "PID");
506 mvwprintw(center, 1, 11, "TID");
507 mvwprintw(center, 1, 22, "NAME");
508
509 perf_row = 40;
510 g_hash_table_iter_init(&iter, data->perf_list);
511 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
512 if (perfn1->visible) {
513 /* + 5 to strip the "perf_" prefix */
514 mvwprintw(center, 1, perf_row, "%s",
515 (char *) key + 5);
516 perf_row += 20;
517 }
518 if (perfn1->sort) {
519 perf_key = (char *) key;
520 }
521 }
522
523 wattroff(center, A_BOLD);
524
525 g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
526
527 for (i = 0; i < data->process_table->len &&
528 nblinedisplayed < max_center_lines; i++) {
529 tmp = g_ptr_array_index(data->process_table, i);
530
531 if (current_line == selected_line) {
532 selected_process = tmp;
533 wattron(center, COLOR_PAIR(5));
534 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
535 }
536
537 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
538 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
539 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
540
541 g_hash_table_iter_init(&iter, data->perf_list);
542
543 perf_row = 40;
544 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
545 if (perfn1->visible) {
546 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
547 if (perfn2)
548 value = perfn2->count;
549 else
550 value = 0;
551 mvwprintw(center, current_line + header_offset,
552 perf_row, "%d", value);
553 perf_row += 20;
554 }
555 }
556
557 wattroff(center, COLOR_PAIR(5));
558 nblinedisplayed++;
559 current_line++;
560 }
561 }
562
563 gint sort_by_ret_desc(gconstpointer p1, gconstpointer p2)
564 {
565 struct processtop *n1 = *(struct processtop **)p1;
566 struct processtop *n2 = *(struct processtop **)p2;
567
568 unsigned long totaln1 = n1->totalfileread + n1->totalfilewrite;
569 unsigned long totaln2 = n2->totalfileread + n2->totalfilewrite;
570
571 if (totaln1 < totaln2)
572 return 1;
573 if (totaln1 == totaln2)
574 return 0;
575 return -1;
576 }
577
578 void update_iostream()
579 {
580 int i;
581 int header_offset = 2;
582 struct processtop *tmp;
583 int nblinedisplayed = 0;
584 int current_line = 0;
585 int total = 0;
586
587 set_window_title(center, "IO Top");
588 wattron(center, A_BOLD);
589 mvwprintw(center, 1, 1, "READ (B/s)");
590 mvwprintw(center, 1, 20, "WRITE (B/s)");
591
592 mvwprintw(center, 1, 40, "TOTAL STREAM");
593
594 mvwprintw(center, 1, 60, "TGID");
595 mvwprintw(center, 1, 80, "PID");
596
597 mvwprintw(center, 1, 92, "NAME");
598 wattroff(center, A_BOLD);
599
600 g_ptr_array_sort(data->process_table, sort_by_ret_desc);
601
602 for (i = list_offset; i < data->process_table->len &&
603 nblinedisplayed < max_center_lines; i++) {
604 tmp = g_ptr_array_index(data->process_table, i);
605
606 if (current_line == selected_line) {
607 selected_process = tmp;
608 selected_tid = tmp->tid;
609 selected_comm = tmp->comm;
610 wattron(center, COLOR_PAIR(5));
611 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
612 }
613
614 /* READ (bytes/sec) */
615 mvwprintw(center, current_line + header_offset, 1, "%lu",
616 tmp->fileread);
617
618 /* WRITE (bytes/sec) */
619 mvwprintw(center, current_line + header_offset, 20, "%lu",
620 tmp->filewrite);
621
622 /* TOTAL STREAM */
623 total = tmp->totalfileread + tmp->totalfilewrite;
624
625 if (total >= 1000000)
626 mvwprintw(center, current_line + header_offset, 40, "%lu MB",
627 total/1000000);
628 else if (total >= 1000)
629 mvwprintw(center, current_line + header_offset, 40, "%lu KB",
630 total/1000);
631 else
632 mvwprintw(center, current_line + header_offset, 40, "%lu B",
633 total);
634
635 /* TGID */
636 mvwprintw(center, current_line + header_offset, 60, "%d", tmp->pid);
637 /* PID */
638 mvwprintw(center, current_line + header_offset, 80, "%d", tmp->tid);
639 /* NAME */
640 mvwprintw(center, current_line + header_offset, 92, "%s", tmp->comm);
641 wattroff(center, COLOR_PAIR(5));
642 nblinedisplayed++;
643 current_line++;
644 }
645 }
646
647 void update_current_view()
648 {
649 sem_wait(&update_display_sem);
650 if (!data)
651 return;
652 update_header();
653
654 werase(center);
655 box(center, 0, 0);
656 switch (current_view) {
657 case cpu:
658 update_cputop_display();
659 break;
660 case perf:
661 update_perf();
662 break;
663 case process_details:
664 update_process_details();
665 break;
666 case iostream:
667 update_iostream();
668 break;
669 case tree:
670 update_cputop_display();
671 break;
672 default:
673 break;
674 }
675 update_panels();
676 doupdate();
677 sem_post(&update_display_sem);
678 }
679
680 void setup_perf_panel()
681 {
682 int size;
683 if (!data)
684 return;
685 if (perf_panel_window) {
686 del_panel(perf_panel);
687 delwin(perf_panel_window);
688 }
689 size = g_hash_table_size(data->perf_list);
690 perf_panel_window = create_window(size + 2, 30, 10, 10);
691 perf_panel = new_panel(perf_panel_window);
692 perf_panel_visible = 0;
693 hide_panel(perf_panel);
694 }
695
696 void update_perf_panel(int line_selected, int toggle_view, int toggle_sort)
697 {
698 int i;
699 struct perfcounter *perf;
700 GList *perflist;
701
702 if (!data)
703 return;
704
705 werase(perf_panel_window);
706 box(perf_panel_window, 0 , 0);
707 set_window_title(perf_panel_window, "Perf Preferences ");
708 wattron(perf_panel_window, A_BOLD);
709 mvwprintw(perf_panel_window, g_hash_table_size(data->perf_list) + 1, 1,
710 " 's' to sort");
711 wattroff(perf_panel_window, A_BOLD);
712
713 if (toggle_sort == 1) {
714 i = 0;
715 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
716 while (perflist) {
717 perf = g_hash_table_lookup(data->perf_list, perflist->data);
718 if (i != line_selected)
719 perf->sort = 0;
720 else
721 perf->sort = 1;
722 i++;
723 perflist = g_list_next(perflist);
724 }
725 update_current_view();
726 }
727
728 i = 0;
729 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
730 while (perflist) {
731 perf = g_hash_table_lookup(data->perf_list, perflist->data);
732 if (i == line_selected && toggle_view == 1) {
733 perf->visible = perf->visible == 1 ? 0:1;
734 update_current_view();
735 }
736 if (i == line_selected) {
737 wattron(perf_panel_window, COLOR_PAIR(5));
738 mvwhline(perf_panel_window, i + 1, 1, ' ', 30 - 2);
739 }
740 if (perf->sort == 1)
741 wattron(perf_panel_window, A_BOLD);
742 mvwprintw(perf_panel_window, i + 1, 1, "[%c] %s",
743 perf->visible == 1 ? 'x' : ' ',
744 (char *) perflist->data + 5);
745 wattroff(perf_panel_window, A_BOLD);
746 wattroff(perf_panel_window, COLOR_PAIR(5));
747 i++;
748 perflist = g_list_next(perflist);
749 }
750 update_panels();
751 doupdate();
752 }
753
754
755 void toggle_perf_panel(void)
756 {
757 if (perf_panel_visible) {
758 hide_panel(perf_panel);
759 perf_panel_visible = 0;
760 } else {
761 setup_perf_panel();
762 update_perf_panel(perf_line_selected, 0, 0);
763 show_panel(perf_panel);
764 perf_panel_visible = 1;
765 }
766 update_panels();
767 doupdate();
768 }
769
770 void display(unsigned int index)
771 {
772 last_display_index = index;
773 currently_displayed_index = index;
774 data = g_ptr_array_index(copies, index);
775 if (!data)
776 return;
777 max_elements = data->process_table->len;
778 update_current_view();
779 update_footer();
780 update_panels();
781 doupdate();
782 }
783
784 void pause_display()
785 {
786 toggle_pause = 1;
787 print_log("Pause");
788 sem_wait(&pause_sem);
789 }
790
791 void resume_display()
792 {
793 toggle_pause = -1;
794 print_log("Resume");
795 sem_post(&pause_sem);
796 }
797
798 void *handle_keyboard(void *p)
799 {
800 int ch;
801 while((ch = getch())) {
802 switch(ch) {
803 /* Move the cursor and scroll */
804 case KEY_DOWN:
805 if (perf_panel_visible) {
806 if (perf_line_selected < g_hash_table_size(data->perf_list) - 1)
807 perf_line_selected++;
808 update_perf_panel(perf_line_selected, 0, 0);
809 } else {
810 if (selected_line < (max_center_lines - 1) &&
811 selected_line < max_elements - 1) {
812 selected_line++;
813 selected_in_list++;
814 } else if (selected_in_list < (max_elements - 1)
815 && (list_offset < (max_elements - max_center_lines))) {
816 selected_in_list++;
817 list_offset++;
818 }
819 update_current_view();
820 }
821 break;
822 case KEY_NPAGE:
823 if ((selected_line + 10 < max_center_lines - 1) &&
824 ((selected_line + 10) < max_elements - 1)) {
825 selected_line += 10;
826 selected_in_list += 10;
827 } else if (max_elements > max_center_lines) {
828 selected_line = max_center_lines - 1;
829 if (selected_in_list + 10 < max_elements - 1) {
830 selected_in_list += 10;
831 list_offset += (selected_in_list - max_center_lines + 1);
832 }
833 } else if (selected_line + 10 > max_elements) {
834 selected_line = max_elements - 1;
835 }
836 update_current_view();
837 break;
838 case KEY_UP:
839 if (perf_panel_visible) {
840 if (perf_line_selected > 0)
841 perf_line_selected--;
842 update_perf_panel(perf_line_selected, 0, 0);
843 } else {
844 if (selected_line > 0) {
845 selected_line--;
846 selected_in_list--;
847 } else if (selected_in_list > 0 && list_offset > 0) {
848 selected_in_list--;
849 list_offset--;
850 }
851 update_current_view();
852 }
853 break;
854 case KEY_PPAGE:
855 if (selected_line - 10 > 0)
856 selected_line -= 10;
857 else
858 selected_line = 0;
859 update_current_view();
860 break;
861
862 /* Navigate the history with arrows */
863 case KEY_LEFT:
864 if (currently_displayed_index > 0) {
865 currently_displayed_index--;
866 print_log("Going back in time");
867 } else {
868 print_log("Cannot rewind, last data is already displayed");
869 }
870 data = g_ptr_array_index(copies, currently_displayed_index);
871 max_elements = data->process_table->len;
872
873 /* we force to pause the display when moving in time */
874 if (toggle_pause < 0)
875 pause_display();
876
877 update_current_view();
878 update_footer();
879 break;
880 case KEY_RIGHT:
881 if (currently_displayed_index < last_display_index) {
882 currently_displayed_index++;
883 print_log("Going forward in time");
884 data = g_ptr_array_index(copies, currently_displayed_index);
885 max_elements = data->process_table->len;
886 update_current_view();
887 update_footer();
888 } else {
889 print_log("Manually moving forward");
890 sem_post(&timer);
891 /* we force to resume the refresh when moving forward */
892 if (toggle_pause > 0)
893 resume_display();
894 }
895
896 break;
897 case ' ':
898 if (perf_panel_visible)
899 update_perf_panel(perf_line_selected, 1, 0);
900 break;
901 case 's':
902 if (perf_panel_visible)
903 update_perf_panel(perf_line_selected, 0, 1);
904 break;
905
906 case 13: /* FIXME : KEY_ENTER ?? */
907 if (current_view != process_details) {
908 previous_view = current_view;
909 current_view = process_details;
910 } else {
911 current_view = previous_view;
912 previous_view = process_details;
913 }
914 update_current_view();
915 break;
916
917 case KEY_F(1):
918 toggle_tree *= -1;
919 current_view = cpu;
920 update_current_view();
921 break;
922 case KEY_F(2):
923 current_view = cpu;
924 update_current_view();
925 break;
926 case KEY_F(3):
927 current_view = perf;
928 toggle_tree = -1;
929 update_current_view();
930 break;
931 case KEY_F(4):
932 current_view = iostream;
933 toggle_tree = -1;
934 update_current_view();
935 break;
936 case KEY_F(10):
937 case 'q':
938 reset_ncurses();
939 break;
940 case 't':
941 toggle_threads *= -1;
942 update_current_view();
943 break;
944 case 'p':
945 if (toggle_pause < 0) {
946 pause_display();
947 } else {
948 resume_display();
949 }
950 break;
951 case 'P':
952 toggle_perf_panel();
953 break;
954 default:
955 if (data)
956 update_current_view();
957 break;
958 }
959 update_footer();
960 }
961 return NULL;
962 }
963
964 void init_ncurses()
965 {
966 sem_init(&update_display_sem, 0, 1);
967 init_screen();
968
969 header = create_window(5, COLS - 1, 0, 0);
970 center = create_window(LINES - 5 - 7, COLS - 1, 5, 0);
971 status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
972 footer = create_window(1, COLS - 1, LINES - 1, 0);
973
974 print_log("Starting display");
975
976 main_panel = new_panel(center);
977 setup_perf_panel();
978
979 current_view = cpu;
980
981 basic_header();
982 update_footer();
983
984 pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
985 }
986
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