2fd69763673acf7fb55c51197a962cd7c5479830
[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, "N/A", 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, "Processes");
258 mvwprintw(header, 3, 4, "Threads");
259 mvwprintw(header, 4, 4, "Files");
260 mvwprintw(header, 5, 4, "Network");
261 mvwprintw(header, 6, 4, "IO");
262 wattroff(header, A_BOLD);
263 wrefresh(header);
264 }
265
266 void update_header()
267 {
268 werase(header);
269 box(header, 0 , 0);
270 set_window_title(header, "Statistics for interval ");
271 wattron(header, A_BOLD);
272 /*
273 wprintw(header, "[%lu.%lu, %lu.%lu[",
274 data->start.tv_sec, data->start.tv_nsec,
275 data->end.tv_sec, data->end.tv_nsec);
276 */
277 wprintw(header, "[%lu, %lu[",
278 data->start,
279 data->end);
280 mvwprintw(header, 1, 4, "CPUs");
281 wattroff(header, A_BOLD);
282 wprintw(header, "\t%d\t(max/cpu : %0.2f%)", data->cpu_table->len,
283 100.0/data->cpu_table->len);
284 print_headers(2, "Processes", data->nbproc, data->nbnewproc,
285 -1*(data->nbdeadproc));
286 print_headers(3, "Threads", data->nbthreads, data->nbnewthreads,
287 -1*(data->nbdeadthreads));
288 print_headers(4, "Files", data->nbfiles, data->nbnewfiles,
289 -1*(data->nbclosedfiles));
290 mvwprintw(header, 4, 43, "N/A kbytes/sec");
291 print_headers(5, "Network", 114, 0, 0);
292 mvwprintw(header, 5, 43, "N/A Mbytes/sec");
293 wrefresh(header);
294 }
295
296 gint sort_by_cpu_desc(gconstpointer p1, gconstpointer p2)
297 {
298 struct processtop *n1 = *(struct processtop **)p1;
299 struct processtop *n2 = *(struct processtop **)p2;
300 unsigned long totaln1 = n1->totalcpunsec;
301 unsigned long totaln2 = n2->totalcpunsec;
302
303 if (totaln1 < totaln2)
304 return 1;
305 if (totaln1 == totaln2)
306 return 0;
307 return -1;
308 }
309
310 gint sort_by_cpu_group_by_threads_desc(gconstpointer p1, gconstpointer p2)
311 {
312 struct processtop *n1 = *(struct processtop **)p1;
313 struct processtop *n2 = *(struct processtop **)p2;
314 unsigned long totaln1 = n1->threadstotalcpunsec;
315 unsigned long totaln2 = n2->threadstotalcpunsec;
316
317 if (totaln1 < totaln2)
318 return 1;
319 if (totaln1 == totaln2)
320 return 0;
321 return -1;
322 }
323
324 void update_cputop_display()
325 {
326 int i;
327 int header_offset = 2;
328 struct processtop *tmp;
329 unsigned long elapsed;
330 double maxcputime;
331 int nblinedisplayed = 0;
332 int current_line = 0;
333
334 elapsed = data->end - data->start;
335 maxcputime = elapsed * data->cpu_table->len / 100.0;
336
337 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
338
339 set_window_title(center, "CPU Top");
340 wattron(center, A_BOLD);
341 mvwprintw(center, 1, 1, "CPU(%)");
342 mvwprintw(center, 1, 12, "TGID");
343 mvwprintw(center, 1, 22, "PID");
344 mvwprintw(center, 1, 32, "NAME");
345 wattroff(center, A_BOLD);
346
347 max_center_lines = LINES - 7 - 7 - 1 - header_offset;
348
349 /* iterate the process (thread) list */
350 for (i = list_offset; i < data->process_table->len &&
351 nblinedisplayed < max_center_lines; i++) {
352 tmp = g_ptr_array_index(data->process_table, i);
353
354 if (current_line == selected_line) {
355 selected_process = tmp;
356 selected_tid = tmp->tid;
357 selected_comm = tmp->comm;
358 wattron(center, COLOR_PAIR(5));
359 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
360 }
361 /* CPU(%) */
362 mvwprintw(center, current_line + header_offset, 1, "%1.2f",
363 tmp->totalcpunsec / maxcputime);
364 /* TGID */
365 mvwprintw(center, current_line + header_offset, 12, "%d", tmp->pid);
366 /* PID */
367 mvwprintw(center, current_line + header_offset, 22, "%d", tmp->tid);
368 /* NAME */
369 mvwprintw(center, current_line + header_offset, 32, "%s", tmp->comm);
370 wattroff(center, COLOR_PAIR(5));
371 nblinedisplayed++;
372 current_line++;
373 }
374 }
375
376 gint sort_perf(gconstpointer p1, gconstpointer p2, gpointer key)
377 {
378 struct processtop *n1 = *(struct processtop **) p1;
379 struct processtop *n2 = *(struct processtop **) p2;
380
381 struct perfcounter *tmp1, *tmp2;
382 unsigned long totaln2 = 0;
383 unsigned long totaln1 = 0;
384
385 if (!key)
386 return 0;
387
388 tmp1 = g_hash_table_lookup(n1->perf, key);
389 if (!tmp1)
390 totaln1 = 0;
391 else
392 totaln1 = tmp1->count;
393
394 tmp2 = g_hash_table_lookup(n2->perf, key);
395 if (!tmp2)
396 totaln2 = 0;
397 else
398 totaln2 = tmp2->count;
399
400 if (totaln1 < totaln2)
401 return 1;
402 if (totaln1 == totaln2) {
403 totaln1 = n1->tid;
404 totaln2 = n2->tid;
405 if (totaln1 < totaln2)
406 return 1;
407 return -1;
408 }
409 return -1;
410 }
411
412 void print_key_title(char *key, int line)
413 {
414 wattron(center, A_BOLD);
415 mvwprintw(center, line, 1, "%s\t", key);
416 wattroff(center, A_BOLD);
417 }
418
419 void update_process_details()
420 {
421 unsigned long elapsed;
422 double maxcputime;
423 struct processtop *tmp = find_process_tid(data, selected_tid, selected_comm);
424 struct files *file_tmp;
425 int i, j = 0;
426
427 set_window_title(center, "Process details");
428
429
430 elapsed = data->end - data->start;
431 maxcputime = elapsed * data->cpu_table->len / 100.0;
432
433 print_key_title("Name", 1);
434 wprintw(center, "%s", selected_comm);
435 print_key_title("TID", 2);
436 wprintw(center, "%d", selected_tid);
437 if (!tmp) {
438 print_key_title("Does not exit at this time", 3);
439 return;
440 }
441
442 print_key_title("PID", 3);
443 wprintw(center, "%d", tmp->pid);
444 print_key_title("PPID", 4);
445 wprintw(center, "%d", tmp->ppid);
446 print_key_title("CPU", 5);
447 wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
448
449 print_key_title("READ B/s", 6);
450 wprintw(center, "%d", tmp->fileread);
451
452 print_key_title("WRITE B/s", 7);
453 wprintw(center, "%d", tmp->filewrite);
454
455 for (i = 0; i < tmp->process_files_table->len; i++) {
456 file_tmp = get_file(tmp, i);
457 if (file_tmp != NULL) {
458 print_key_title("file", 8+j);
459 wprintw(center, "%s fd = %d", file_tmp->name, i);
460 wprintw(center, " read = %d", file_tmp->read);
461 wprintw(center, " write = %d", file_tmp->write);
462 j++;
463 }
464 }
465 }
466
467 void update_perf()
468 {
469 int i;
470 int nblinedisplayed = 0;
471 int current_line = 0;
472 struct processtop *tmp;
473 int header_offset = 2;
474 int perf_row = 40;
475 struct perfcounter *perfn1, *perfn2;
476 char *perf_key = NULL;
477 int value;
478 GHashTableIter iter;
479 gpointer key;
480
481 set_window_title(center, "Perf Top");
482 wattron(center, A_BOLD);
483 mvwprintw(center, 1, 1, "PID");
484 mvwprintw(center, 1, 11, "TID");
485 mvwprintw(center, 1, 22, "NAME");
486
487 perf_row = 40;
488 g_hash_table_iter_init(&iter, data->perf_list);
489 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
490 if (perfn1->visible) {
491 /* + 5 to strip the "perf_" prefix */
492 mvwprintw(center, 1, perf_row, "%s",
493 (char *) key + 5);
494 perf_row += 20;
495 }
496 if (perfn1->sort) {
497 perf_key = (char *) key;
498 }
499 }
500
501 wattroff(center, A_BOLD);
502
503 g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
504
505 for (i = 0; i < data->process_table->len &&
506 nblinedisplayed < max_center_lines; i++) {
507 tmp = g_ptr_array_index(data->process_table, i);
508
509 if (current_line == selected_line) {
510 selected_process = tmp;
511 wattron(center, COLOR_PAIR(5));
512 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
513 }
514
515 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
516 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
517 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
518
519 g_hash_table_iter_init(&iter, data->perf_list);
520
521 perf_row = 40;
522 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
523 if (perfn1->visible) {
524 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
525 if (perfn2)
526 value = perfn2->count;
527 else
528 value = 0;
529 mvwprintw(center, current_line + header_offset,
530 perf_row, "%d", value);
531 perf_row += 20;
532 }
533 }
534
535 wattroff(center, COLOR_PAIR(5));
536 nblinedisplayed++;
537 current_line++;
538 }
539 }
540
541 gint sort_by_ret_desc(gconstpointer p1, gconstpointer p2)
542 {
543 struct processtop *n1 = *(struct processtop **)p1;
544 struct processtop *n2 = *(struct processtop **)p2;
545
546 unsigned long totaln1 = n1->totalfileread + n1->totalfilewrite;
547 unsigned long totaln2 = n2->totalfileread + n2->totalfilewrite;
548
549 if (totaln1 < totaln2)
550 return 1;
551 if (totaln1 == totaln2)
552 return 0;
553 return -1;
554 }
555
556 void update_iostream()
557 {
558 int i;
559 int header_offset = 2;
560 struct processtop *tmp;
561 int nblinedisplayed = 0;
562 int current_line = 0;
563 int total = 0;
564
565 set_window_title(center, "IO Top");
566 wattron(center, A_BOLD);
567 mvwprintw(center, 1, 1, "READ (B/s)");
568 mvwprintw(center, 1, 20, "WRITE (B/s)");
569
570 mvwprintw(center, 1, 40, "TOTAL STREAM");
571
572 mvwprintw(center, 1, 60, "TGID");
573 mvwprintw(center, 1, 80, "PID");
574
575 mvwprintw(center, 1, 92, "NAME");
576 wattroff(center, A_BOLD);
577
578 g_ptr_array_sort(data->process_table, sort_by_ret_desc);
579
580 for (i = list_offset; i < data->process_table->len &&
581 nblinedisplayed < max_center_lines; i++) {
582 tmp = g_ptr_array_index(data->process_table, i);
583
584 if (current_line == selected_line) {
585 selected_process = tmp;
586 selected_tid = tmp->tid;
587 selected_comm = tmp->comm;
588 wattron(center, COLOR_PAIR(5));
589 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
590 }
591
592 /* READ (bytes/sec) */
593 mvwprintw(center, current_line + header_offset, 1, "%lu",
594 tmp->fileread);
595
596 /* WRITE (bytes/sec) */
597 mvwprintw(center, current_line + header_offset, 20, "%lu",
598 tmp->filewrite);
599
600 /* TOTAL STREAM */
601 total = tmp->totalfileread + tmp->totalfilewrite;
602
603 if (total >= 1000000)
604 mvwprintw(center, current_line + header_offset, 40, "%lu MB",
605 total/1000000);
606 else if (total >= 1000)
607 mvwprintw(center, current_line + header_offset, 40, "%lu KB",
608 total/1000);
609 else
610 mvwprintw(center, current_line + header_offset, 40, "%lu B",
611 total);
612
613 /* TGID */
614 mvwprintw(center, current_line + header_offset, 60, "%d", tmp->pid);
615 /* PID */
616 mvwprintw(center, current_line + header_offset, 80, "%d", tmp->tid);
617 /* NAME */
618 mvwprintw(center, current_line + header_offset, 92, "%s", tmp->comm);
619 wattroff(center, COLOR_PAIR(5));
620 nblinedisplayed++;
621 current_line++;
622 }
623 }
624
625 void update_current_view()
626 {
627 sem_wait(&update_display_sem);
628 if (!data)
629 return;
630 update_header();
631
632 werase(center);
633 box(center, 0, 0);
634 switch (current_view) {
635 case cpu:
636 update_cputop_display();
637 break;
638 case perf:
639 update_perf();
640 break;
641 case process_details:
642 update_process_details();
643 break;
644 case iostream:
645 update_iostream();
646 break;
647 case tree:
648 update_cputop_display();
649 break;
650 default:
651 break;
652 }
653 update_panels();
654 doupdate();
655 sem_post(&update_display_sem);
656 }
657
658 void setup_perf_panel()
659 {
660 int size;
661 if (!data)
662 return;
663 if (perf_panel_window) {
664 del_panel(perf_panel);
665 delwin(perf_panel_window);
666 }
667 size = g_hash_table_size(data->perf_list);
668 perf_panel_window = create_window(size + 2, 30, 10, 10);
669 perf_panel = new_panel(perf_panel_window);
670 perf_panel_visible = 0;
671 hide_panel(perf_panel);
672 }
673
674 void update_perf_panel(int line_selected, int toggle_view, int toggle_sort)
675 {
676 int i;
677 struct perfcounter *perf;
678 GList *perflist;
679
680 if (!data)
681 return;
682
683 werase(perf_panel_window);
684 box(perf_panel_window, 0 , 0);
685 set_window_title(perf_panel_window, "Perf Preferences ");
686 wattron(perf_panel_window, A_BOLD);
687 mvwprintw(perf_panel_window, g_hash_table_size(data->perf_list) + 1, 1,
688 " 's' to sort");
689 wattroff(perf_panel_window, A_BOLD);
690
691 if (toggle_sort == 1) {
692 i = 0;
693 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
694 while (perflist) {
695 perf = g_hash_table_lookup(data->perf_list, perflist->data);
696 if (i != line_selected)
697 perf->sort = 0;
698 else
699 perf->sort = 1;
700 i++;
701 perflist = g_list_next(perflist);
702 }
703 update_current_view();
704 }
705
706 i = 0;
707 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
708 while (perflist) {
709 perf = g_hash_table_lookup(data->perf_list, perflist->data);
710 if (i == line_selected && toggle_view == 1) {
711 perf->visible = perf->visible == 1 ? 0:1;
712 update_current_view();
713 }
714 if (i == line_selected) {
715 wattron(perf_panel_window, COLOR_PAIR(5));
716 mvwhline(perf_panel_window, i + 1, 1, ' ', 30 - 2);
717 }
718 if (perf->sort == 1)
719 wattron(perf_panel_window, A_BOLD);
720 mvwprintw(perf_panel_window, i + 1, 1, "[%c] %s",
721 perf->visible == 1 ? 'x' : ' ',
722 (char *) perflist->data + 6);
723 wattroff(perf_panel_window, A_BOLD);
724 wattroff(perf_panel_window, COLOR_PAIR(5));
725 i++;
726 perflist = g_list_next(perflist);
727 }
728 update_panels();
729 doupdate();
730 }
731
732
733 void toggle_perf_panel(void)
734 {
735 if (perf_panel_visible) {
736 hide_panel(perf_panel);
737 perf_panel_visible = 0;
738 } else {
739 setup_perf_panel();
740 update_perf_panel(perf_line_selected, 0, 0);
741 show_panel(perf_panel);
742 perf_panel_visible = 1;
743 }
744 update_panels();
745 doupdate();
746 }
747
748 void display(unsigned int index)
749 {
750 last_display_index = index;
751 currently_displayed_index = index;
752 data = g_ptr_array_index(copies, index);
753 if (!data)
754 return;
755 max_elements = data->process_table->len;
756 update_current_view();
757 update_footer();
758 update_panels();
759 doupdate();
760 }
761
762 void pause_display()
763 {
764 toggle_pause = 1;
765 print_log("Pause");
766 sem_wait(&pause_sem);
767 }
768
769 void resume_display()
770 {
771 toggle_pause = -1;
772 print_log("Resume");
773 sem_post(&pause_sem);
774 }
775
776 void *handle_keyboard(void *p)
777 {
778 int ch;
779 while((ch = getch())) {
780 switch(ch) {
781 /* Move the cursor and scroll */
782 case KEY_DOWN:
783 if (perf_panel_visible) {
784 if (perf_line_selected < g_hash_table_size(data->perf_list) - 1)
785 perf_line_selected++;
786 update_perf_panel(perf_line_selected, 0, 0);
787 } else {
788 if (selected_line < (max_center_lines - 1) &&
789 selected_line < max_elements - 1) {
790 selected_line++;
791 selected_in_list++;
792 } else if (selected_in_list < (max_elements - 1)
793 && (list_offset < (max_elements - max_center_lines))) {
794 selected_in_list++;
795 list_offset++;
796 }
797 update_current_view();
798 }
799 break;
800 case KEY_NPAGE:
801 if ((selected_line + 10 < max_center_lines - 1) &&
802 ((selected_line + 10) < max_elements - 1)) {
803 selected_line += 10;
804 selected_in_list += 10;
805 } else if (max_elements > max_center_lines) {
806 selected_line = max_center_lines - 1;
807 if (selected_in_list + 10 < max_elements - 1) {
808 selected_in_list += 10;
809 list_offset += (selected_in_list - max_center_lines + 1);
810 }
811 } else if (selected_line + 10 > max_elements) {
812 selected_line = max_elements - 1;
813 }
814 update_current_view();
815 break;
816 case KEY_UP:
817 if (perf_panel_visible) {
818 if (perf_line_selected > 0)
819 perf_line_selected--;
820 update_perf_panel(perf_line_selected, 0, 0);
821 } else {
822 if (selected_line > 0) {
823 selected_line--;
824 selected_in_list--;
825 } else if (selected_in_list > 0 && list_offset > 0) {
826 selected_in_list--;
827 list_offset--;
828 }
829 update_current_view();
830 }
831 break;
832 case KEY_PPAGE:
833 if (selected_line - 10 > 0)
834 selected_line -= 10;
835 else
836 selected_line = 0;
837 update_current_view();
838 break;
839
840 /* Navigate the history with arrows */
841 case KEY_LEFT:
842 if (currently_displayed_index > 0) {
843 currently_displayed_index--;
844 print_log("Going back in time");
845 } else {
846 print_log("Cannot rewind, last data is already displayed");
847 }
848 data = g_ptr_array_index(copies, currently_displayed_index);
849 max_elements = data->process_table->len;
850
851 /* we force to pause the display when moving in time */
852 if (toggle_pause < 0)
853 pause_display();
854
855 update_current_view();
856 update_footer();
857 break;
858 case KEY_RIGHT:
859 if (currently_displayed_index < last_display_index) {
860 currently_displayed_index++;
861 print_log("Going forward in time");
862 data = g_ptr_array_index(copies, currently_displayed_index);
863 max_elements = data->process_table->len;
864 update_current_view();
865 update_footer();
866 } else {
867 print_log("Manually moving forward");
868 sem_post(&timer);
869 /* we force to resume the refresh when moving forward */
870 if (toggle_pause > 0)
871 resume_display();
872 }
873
874 break;
875 case ' ':
876 if (perf_panel_visible)
877 update_perf_panel(perf_line_selected, 1, 0);
878 break;
879 case 's':
880 if (perf_panel_visible)
881 update_perf_panel(perf_line_selected, 0, 1);
882 break;
883
884 case 13: /* FIXME : KEY_ENTER ?? */
885 if (current_view == cpu) {
886 current_view = process_details;
887 }
888 update_current_view();
889 break;
890
891 case KEY_F(1):
892 toggle_tree *= -1;
893 current_view = cpu;
894 update_current_view();
895 break;
896 case KEY_F(2):
897 current_view = cpu;
898 update_current_view();
899 break;
900 case KEY_F(3):
901 current_view = perf;
902 toggle_tree = -1;
903 update_current_view();
904 break;
905 case KEY_F(4):
906 current_view = iostream;
907 toggle_tree = -1;
908 update_current_view();
909 break;
910 case KEY_F(10):
911 case 'q':
912 reset_ncurses();
913 break;
914 case 't':
915 toggle_threads *= -1;
916 update_current_view();
917 break;
918 case 'p':
919 if (toggle_pause < 0) {
920 pause_display();
921 } else {
922 resume_display();
923 }
924 break;
925 case 'P':
926 toggle_perf_panel();
927 break;
928 default:
929 if (data)
930 update_current_view();
931 break;
932 }
933 update_footer();
934 }
935 return NULL;
936 }
937
938 void init_ncurses()
939 {
940 sem_init(&update_display_sem, 0, 1);
941 init_screen();
942
943 header = create_window(7, COLS - 1, 0, 0);
944 center = create_window(LINES - 7 - 7, COLS - 1, 7, 0);
945 status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
946 footer = create_window(1, COLS - 1, LINES - 1, 0);
947
948 print_log("Starting display");
949
950 main_panel = new_panel(center);
951 setup_perf_panel();
952
953 current_view = cpu;
954
955 basic_header();
956 update_footer();
957
958 pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
959 }
960
This page took 0.076189 seconds and 3 git commands to generate.