Handle the file descriptor statedump
[lttngtop.git] / src / cursesdisplay.c
CommitLineData
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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 *
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AM
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.
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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"
b093de8a 29#include "iostreamtop.h"
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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 */
37sem_t update_display_sem;
38
39char *termtype;
40WINDOW *footer, *header, *center, *status;
41WINDOW *perf_panel_window = NULL;
42PANEL *perf_panel, *main_panel;
43
44int perf_panel_visible = 0;
45int perf_line_selected = 0;
46
47int last_display_index, currently_displayed_index;
48
49struct processtop *selected_process = NULL;
50int selected_tid;
51char *selected_comm;
52int selected_ret;
53
54int selected_line = 0; /* select bar position */
55int selected_in_list = 0; /* selection relative to the whole list */
56int list_offset = 0; /* first index in the list to display (scroll) */
57int nb_log_lines = 0;
58char log_lines[MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES];
59
60int max_elements = 80;
61
62int toggle_threads = -1;
63int toggle_pause = -1;
64int toggle_tree = -1;
65
66int max_center_lines;
67
68pthread_t keyboard_thread;
69
70void reset_ncurses()
71{
72 curs_set(1);
73 endwin();
74 exit(0);
75}
76
77static void handle_sigterm(int signal)
78{
79 reset_ncurses();
80}
81
82void 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
122WINDOW *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
131WINDOW *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
139void 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
154void 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
163void 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);
e05a35a6 168 mvwprintw(header, line, 16, "%d", value);
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169 wmove(header, line, 24);
170 print_digits(header, first, second);
171 wmove(header, line, 40);
172}
173
174void 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
181void 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 {
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213 mvwprintw(status, current_line, current_char++, "%c",
214 log_lines[i]);
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215 }
216 }
217 wrefresh(status);
218}
219
220void 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
233void 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);
e7be7d41 240 print_key(footer, "F4", "IOTop ", current_view == iostream);
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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
250void 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");
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257 mvwprintw(header, 2, 4, "Threads");
258 mvwprintw(header, 3, 4, "Files");
259 mvwprintw(header, 4, 4, "Network");
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260 wattroff(header, A_BOLD);
261 wrefresh(header);
262}
263
264void update_header()
265{
266 werase(header);
267 box(header, 0 , 0);
268 set_window_title(header, "Statistics for interval ");
269 wattron(header, A_BOLD);
270 /*
271 wprintw(header, "[%lu.%lu, %lu.%lu[",
272 data->start.tv_sec, data->start.tv_nsec,
273 data->end.tv_sec, data->end.tv_nsec);
274 */
275 wprintw(header, "[%lu, %lu[",
276 data->start,
277 data->end);
278 mvwprintw(header, 1, 4, "CPUs");
279 wattroff(header, A_BOLD);
280 wprintw(header, "\t%d\t(max/cpu : %0.2f%)", data->cpu_table->len,
281 100.0/data->cpu_table->len);
e05a35a6 282 print_headers(2, "Threads", data->nbthreads, data->nbnewthreads,
1fc22eb4 283 -1*(data->nbdeadthreads));
e05a35a6 284 print_headers(3, "Files", data->nbfiles, data->nbnewfiles,
1fc22eb4 285 -1*(data->nbclosedfiles));
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286 mvwprintw(header, 3, 43, "N/A kbytes/sec");
287 print_headers(4, "Network", 0, 0, 0);
288 mvwprintw(header, 4, 43, "N/A Mbytes/sec");
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289 wrefresh(header);
290}
291
292gint sort_by_cpu_desc(gconstpointer p1, gconstpointer p2)
293{
294 struct processtop *n1 = *(struct processtop **)p1;
295 struct processtop *n2 = *(struct processtop **)p2;
296 unsigned long totaln1 = n1->totalcpunsec;
297 unsigned long totaln2 = n2->totalcpunsec;
298
299 if (totaln1 < totaln2)
300 return 1;
301 if (totaln1 == totaln2)
302 return 0;
303 return -1;
304}
305
306gint sort_by_cpu_group_by_threads_desc(gconstpointer p1, gconstpointer p2)
307{
308 struct processtop *n1 = *(struct processtop **)p1;
309 struct processtop *n2 = *(struct processtop **)p2;
310 unsigned long totaln1 = n1->threadstotalcpunsec;
311 unsigned long totaln2 = n2->threadstotalcpunsec;
312
313 if (totaln1 < totaln2)
314 return 1;
315 if (totaln1 == totaln2)
316 return 0;
317 return -1;
318}
319
320void update_cputop_display()
321{
322 int i;
323 int header_offset = 2;
324 struct processtop *tmp;
325 unsigned long elapsed;
326 double maxcputime;
327 int nblinedisplayed = 0;
328 int current_line = 0;
329
330 elapsed = data->end - data->start;
331 maxcputime = elapsed * data->cpu_table->len / 100.0;
332
333 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
334
335 set_window_title(center, "CPU Top");
336 wattron(center, A_BOLD);
337 mvwprintw(center, 1, 1, "CPU(%)");
338 mvwprintw(center, 1, 12, "TGID");
339 mvwprintw(center, 1, 22, "PID");
340 mvwprintw(center, 1, 32, "NAME");
341 wattroff(center, A_BOLD);
342
343 max_center_lines = LINES - 7 - 7 - 1 - header_offset;
344
345 /* iterate the process (thread) list */
346 for (i = list_offset; i < data->process_table->len &&
347 nblinedisplayed < max_center_lines; i++) {
348 tmp = g_ptr_array_index(data->process_table, i);
349
350 if (current_line == selected_line) {
351 selected_process = tmp;
352 selected_tid = tmp->tid;
353 selected_comm = tmp->comm;
354 wattron(center, COLOR_PAIR(5));
355 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
356 }
357 /* CPU(%) */
358 mvwprintw(center, current_line + header_offset, 1, "%1.2f",
359 tmp->totalcpunsec / maxcputime);
360 /* TGID */
361 mvwprintw(center, current_line + header_offset, 12, "%d", tmp->pid);
362 /* PID */
363 mvwprintw(center, current_line + header_offset, 22, "%d", tmp->tid);
364 /* NAME */
365 mvwprintw(center, current_line + header_offset, 32, "%s", tmp->comm);
366 wattroff(center, COLOR_PAIR(5));
367 nblinedisplayed++;
368 current_line++;
369 }
370}
371
372gint sort_perf(gconstpointer p1, gconstpointer p2, gpointer key)
373{
374 struct processtop *n1 = *(struct processtop **) p1;
375 struct processtop *n2 = *(struct processtop **) p2;
376
377 struct perfcounter *tmp1, *tmp2;
378 unsigned long totaln2 = 0;
379 unsigned long totaln1 = 0;
380
381 if (!key)
382 return 0;
383
384 tmp1 = g_hash_table_lookup(n1->perf, key);
385 if (!tmp1)
386 totaln1 = 0;
387 else
388 totaln1 = tmp1->count;
389
390 tmp2 = g_hash_table_lookup(n2->perf, key);
391 if (!tmp2)
392 totaln2 = 0;
393 else
394 totaln2 = tmp2->count;
395
396 if (totaln1 < totaln2)
397 return 1;
398 if (totaln1 == totaln2) {
399 totaln1 = n1->tid;
400 totaln2 = n2->tid;
401 if (totaln1 < totaln2)
402 return 1;
403 return -1;
404 }
405 return -1;
406}
407
408void print_key_title(char *key, int line)
409{
410 wattron(center, A_BOLD);
411 mvwprintw(center, line, 1, "%s\t", key);
412 wattroff(center, A_BOLD);
413}
414
415void update_process_details()
416{
417 unsigned long elapsed;
418 double maxcputime;
419 struct processtop *tmp = find_process_tid(data, selected_tid, selected_comm);
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420 struct files *file_tmp;
421 int i, j = 0;
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422
423 set_window_title(center, "Process details");
424
425
426 elapsed = data->end - data->start;
427 maxcputime = elapsed * data->cpu_table->len / 100.0;
428
429 print_key_title("Name", 1);
430 wprintw(center, "%s", selected_comm);
431 print_key_title("TID", 2);
432 wprintw(center, "%d", selected_tid);
433 if (!tmp) {
434 print_key_title("Does not exit at this time", 3);
435 return;
436 }
437
438 print_key_title("PID", 3);
439 wprintw(center, "%d", tmp->pid);
440 print_key_title("PPID", 4);
441 wprintw(center, "%d", tmp->ppid);
442 print_key_title("CPU", 5);
443 wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
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444
445 print_key_title("READ B/s", 6);
446 wprintw(center, "%d", tmp->fileread);
447
448 print_key_title("WRITE B/s", 7);
449 wprintw(center, "%d", tmp->filewrite);
450
451 for (i = 0; i < tmp->process_files_table->len; i++) {
452 file_tmp = get_file(tmp, i);
453 if (file_tmp != NULL) {
454 print_key_title("file", 8+j);
455 wprintw(center, "%s fd = %d", file_tmp->name, i);
456 wprintw(center, " read = %d", file_tmp->read);
457 wprintw(center, " write = %d", file_tmp->write);
458 j++;
459 }
460 }
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461}
462
463void update_perf()
464{
bb053abb 465 int i;
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466 int nblinedisplayed = 0;
467 int current_line = 0;
468 struct processtop *tmp;
469 int header_offset = 2;
470 int perf_row = 40;
471 struct perfcounter *perfn1, *perfn2;
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472 char *perf_key = NULL;
473 int value;
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474 GHashTableIter iter;
475 gpointer key;
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476
477 set_window_title(center, "Perf Top");
478 wattron(center, A_BOLD);
479 mvwprintw(center, 1, 1, "PID");
480 mvwprintw(center, 1, 11, "TID");
481 mvwprintw(center, 1, 22, "NAME");
482
483 perf_row = 40;
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484 g_hash_table_iter_init(&iter, data->perf_list);
485 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
1fc22eb4 486 if (perfn1->visible) {
6419078d 487 /* + 5 to strip the "perf_" prefix */
1fc22eb4 488 mvwprintw(center, 1, perf_row, "%s",
6419078d 489 (char *) key + 5);
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490 perf_row += 20;
491 }
492 if (perfn1->sort) {
85db4618 493 perf_key = (char *) key;
1fc22eb4 494 }
1fc22eb4 495 }
85db4618 496
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497 wattroff(center, A_BOLD);
498
499 g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
85db4618 500
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501 for (i = 0; i < data->process_table->len &&
502 nblinedisplayed < max_center_lines; i++) {
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503 tmp = g_ptr_array_index(data->process_table, i);
504
505 if (current_line == selected_line) {
506 selected_process = tmp;
507 wattron(center, COLOR_PAIR(5));
508 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
509 }
510
511 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
512 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
513 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
514
85db4618 515 g_hash_table_iter_init(&iter, data->perf_list);
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516
517 perf_row = 40;
85db4618 518 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
1fc22eb4 519 if (perfn1->visible) {
85db4618 520 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
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521 if (perfn2)
522 value = perfn2->count;
523 else
524 value = 0;
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525 mvwprintw(center, current_line + header_offset,
526 perf_row, "%d", value);
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527 perf_row += 20;
528 }
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529 }
530
531 wattroff(center, COLOR_PAIR(5));
532 nblinedisplayed++;
533 current_line++;
534 }
535}
536
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537gint sort_by_ret_desc(gconstpointer p1, gconstpointer p2)
538{
539 struct processtop *n1 = *(struct processtop **)p1;
540 struct processtop *n2 = *(struct processtop **)p2;
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541
542 unsigned long totaln1 = n1->totalfileread + n1->totalfilewrite;
543 unsigned long totaln2 = n2->totalfileread + n2->totalfilewrite;
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544
545 if (totaln1 < totaln2)
546 return 1;
547 if (totaln1 == totaln2)
548 return 0;
549 return -1;
550}
551
552void update_iostream()
553{
554 int i;
555 int header_offset = 2;
556 struct processtop *tmp;
557 int nblinedisplayed = 0;
558 int current_line = 0;
b093de8a 559 int total = 0;
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560
561 set_window_title(center, "IO Top");
562 wattron(center, A_BOLD);
563 mvwprintw(center, 1, 1, "READ (B/s)");
564 mvwprintw(center, 1, 20, "WRITE (B/s)");
565
566 mvwprintw(center, 1, 40, "TOTAL STREAM");
567
568 mvwprintw(center, 1, 60, "TGID");
569 mvwprintw(center, 1, 80, "PID");
570
571 mvwprintw(center, 1, 92, "NAME");
572 wattroff(center, A_BOLD);
573
574 g_ptr_array_sort(data->process_table, sort_by_ret_desc);
575
576 for (i = list_offset; i < data->process_table->len &&
577 nblinedisplayed < max_center_lines; i++) {
578 tmp = g_ptr_array_index(data->process_table, i);
579
580 if (current_line == selected_line) {
581 selected_process = tmp;
582 selected_tid = tmp->tid;
583 selected_comm = tmp->comm;
584 wattron(center, COLOR_PAIR(5));
585 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
586 }
b093de8a 587
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588 /* READ (bytes/sec) */
589 mvwprintw(center, current_line + header_offset, 1, "%lu",
b093de8a 590 tmp->fileread);
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591
592 /* WRITE (bytes/sec) */
593 mvwprintw(center, current_line + header_offset, 20, "%lu",
b093de8a 594 tmp->filewrite);
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595
596 /* TOTAL STREAM */
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597 total = tmp->totalfileread + tmp->totalfilewrite;
598
599 if (total >= 1000000)
1fc22eb4 600 mvwprintw(center, current_line + header_offset, 40, "%lu MB",
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601 total/1000000);
602 else if (total >= 1000)
1fc22eb4 603 mvwprintw(center, current_line + header_offset, 40, "%lu KB",
b093de8a 604 total/1000);
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605 else
606 mvwprintw(center, current_line + header_offset, 40, "%lu B",
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607 total);
608
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609 /* TGID */
610 mvwprintw(center, current_line + header_offset, 60, "%d", tmp->pid);
611 /* PID */
612 mvwprintw(center, current_line + header_offset, 80, "%d", tmp->tid);
613 /* NAME */
614 mvwprintw(center, current_line + header_offset, 92, "%s", tmp->comm);
615 wattroff(center, COLOR_PAIR(5));
616 nblinedisplayed++;
617 current_line++;
618 }
619}
620
621void update_current_view()
622{
623 sem_wait(&update_display_sem);
624 if (!data)
625 return;
626 update_header();
627
628 werase(center);
629 box(center, 0, 0);
630 switch (current_view) {
631 case cpu:
632 update_cputop_display();
633 break;
634 case perf:
635 update_perf();
636 break;
637 case process_details:
638 update_process_details();
639 break;
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640 case iostream:
641 update_iostream();
642 break;
643 case tree:
644 update_cputop_display();
645 break;
646 default:
647 break;
648 }
649 update_panels();
650 doupdate();
651 sem_post(&update_display_sem);
652}
653
654void setup_perf_panel()
655{
656 int size;
657 if (!data)
658 return;
659 if (perf_panel_window) {
660 del_panel(perf_panel);
661 delwin(perf_panel_window);
662 }
663 size = g_hash_table_size(data->perf_list);
664 perf_panel_window = create_window(size + 2, 30, 10, 10);
665 perf_panel = new_panel(perf_panel_window);
666 perf_panel_visible = 0;
667 hide_panel(perf_panel);
668}
669
670void update_perf_panel(int line_selected, int toggle_view, int toggle_sort)
671{
672 int i;
673 struct perfcounter *perf;
674 GList *perflist;
675
676 if (!data)
677 return;
678
679 werase(perf_panel_window);
680 box(perf_panel_window, 0 , 0);
681 set_window_title(perf_panel_window, "Perf Preferences ");
682 wattron(perf_panel_window, A_BOLD);
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683 mvwprintw(perf_panel_window, g_hash_table_size(data->perf_list) + 1, 1,
684 " 's' to sort");
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685 wattroff(perf_panel_window, A_BOLD);
686
687 if (toggle_sort == 1) {
688 i = 0;
689 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
690 while (perflist) {
691 perf = g_hash_table_lookup(data->perf_list, perflist->data);
692 if (i != line_selected)
693 perf->sort = 0;
694 else
695 perf->sort = 1;
696 i++;
697 perflist = g_list_next(perflist);
698 }
699 update_current_view();
700 }
701
702 i = 0;
703 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
704 while (perflist) {
705 perf = g_hash_table_lookup(data->perf_list, perflist->data);
706 if (i == line_selected && toggle_view == 1) {
707 perf->visible = perf->visible == 1 ? 0:1;
708 update_current_view();
709 }
710 if (i == line_selected) {
711 wattron(perf_panel_window, COLOR_PAIR(5));
712 mvwhline(perf_panel_window, i + 1, 1, ' ', 30 - 2);
713 }
714 if (perf->sort == 1)
715 wattron(perf_panel_window, A_BOLD);
716 mvwprintw(perf_panel_window, i + 1, 1, "[%c] %s",
717 perf->visible == 1 ? 'x' : ' ',
718 (char *) perflist->data + 6);
719 wattroff(perf_panel_window, A_BOLD);
720 wattroff(perf_panel_window, COLOR_PAIR(5));
721 i++;
722 perflist = g_list_next(perflist);
723 }
724 update_panels();
725 doupdate();
726}
727
728
729void toggle_perf_panel(void)
730{
731 if (perf_panel_visible) {
732 hide_panel(perf_panel);
733 perf_panel_visible = 0;
734 } else {
735 setup_perf_panel();
736 update_perf_panel(perf_line_selected, 0, 0);
737 show_panel(perf_panel);
738 perf_panel_visible = 1;
739 }
740 update_panels();
741 doupdate();
742}
743
744void display(unsigned int index)
745{
746 last_display_index = index;
747 currently_displayed_index = index;
748 data = g_ptr_array_index(copies, index);
749 if (!data)
750 return;
751 max_elements = data->process_table->len;
752 update_current_view();
753 update_footer();
754 update_panels();
755 doupdate();
756}
757
758void pause_display()
759{
760 toggle_pause = 1;
761 print_log("Pause");
762 sem_wait(&pause_sem);
763}
764
765void resume_display()
766{
767 toggle_pause = -1;
768 print_log("Resume");
769 sem_post(&pause_sem);
770}
771
772void *handle_keyboard(void *p)
773{
774 int ch;
775 while((ch = getch())) {
776 switch(ch) {
777 /* Move the cursor and scroll */
778 case KEY_DOWN:
779 if (perf_panel_visible) {
780 if (perf_line_selected < g_hash_table_size(data->perf_list) - 1)
781 perf_line_selected++;
782 update_perf_panel(perf_line_selected, 0, 0);
783 } else {
784 if (selected_line < (max_center_lines - 1) &&
785 selected_line < max_elements - 1) {
786 selected_line++;
787 selected_in_list++;
788 } else if (selected_in_list < (max_elements - 1)
789 && (list_offset < (max_elements - max_center_lines))) {
790 selected_in_list++;
791 list_offset++;
792 }
793 update_current_view();
794 }
795 break;
796 case KEY_NPAGE:
797 if ((selected_line + 10 < max_center_lines - 1) &&
798 ((selected_line + 10) < max_elements - 1)) {
799 selected_line += 10;
800 selected_in_list += 10;
801 } else if (max_elements > max_center_lines) {
802 selected_line = max_center_lines - 1;
803 if (selected_in_list + 10 < max_elements - 1) {
804 selected_in_list += 10;
805 list_offset += (selected_in_list - max_center_lines + 1);
806 }
807 } else if (selected_line + 10 > max_elements) {
808 selected_line = max_elements - 1;
809 }
810 update_current_view();
811 break;
812 case KEY_UP:
813 if (perf_panel_visible) {
814 if (perf_line_selected > 0)
815 perf_line_selected--;
816 update_perf_panel(perf_line_selected, 0, 0);
817 } else {
818 if (selected_line > 0) {
819 selected_line--;
820 selected_in_list--;
821 } else if (selected_in_list > 0 && list_offset > 0) {
822 selected_in_list--;
823 list_offset--;
824 }
825 update_current_view();
826 }
827 break;
828 case KEY_PPAGE:
829 if (selected_line - 10 > 0)
830 selected_line -= 10;
831 else
832 selected_line = 0;
833 update_current_view();
834 break;
835
836 /* Navigate the history with arrows */
837 case KEY_LEFT:
838 if (currently_displayed_index > 0) {
839 currently_displayed_index--;
840 print_log("Going back in time");
841 } else {
842 print_log("Cannot rewind, last data is already displayed");
843 }
844 data = g_ptr_array_index(copies, currently_displayed_index);
845 max_elements = data->process_table->len;
846
847 /* we force to pause the display when moving in time */
848 if (toggle_pause < 0)
849 pause_display();
850
851 update_current_view();
852 update_footer();
853 break;
854 case KEY_RIGHT:
855 if (currently_displayed_index < last_display_index) {
856 currently_displayed_index++;
857 print_log("Going forward in time");
858 data = g_ptr_array_index(copies, currently_displayed_index);
859 max_elements = data->process_table->len;
860 update_current_view();
861 update_footer();
862 } else {
863 print_log("Manually moving forward");
864 sem_post(&timer);
865 /* we force to resume the refresh when moving forward */
866 if (toggle_pause > 0)
867 resume_display();
868 }
869
870 break;
871 case ' ':
872 if (perf_panel_visible)
873 update_perf_panel(perf_line_selected, 1, 0);
874 break;
875 case 's':
876 if (perf_panel_visible)
877 update_perf_panel(perf_line_selected, 0, 1);
878 break;
879
880 case 13: /* FIXME : KEY_ENTER ?? */
881 if (current_view == cpu) {
882 current_view = process_details;
883 }
884 update_current_view();
885 break;
886
887 case KEY_F(1):
888 toggle_tree *= -1;
889 current_view = cpu;
890 update_current_view();
891 break;
892 case KEY_F(2):
893 current_view = cpu;
894 update_current_view();
895 break;
896 case KEY_F(3):
897 current_view = perf;
898 toggle_tree = -1;
899 update_current_view();
900 break;
901 case KEY_F(4):
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902 current_view = iostream;
903 toggle_tree = -1;
904 update_current_view();
905 break;
906 case KEY_F(10):
907 case 'q':
908 reset_ncurses();
909 break;
910 case 't':
911 toggle_threads *= -1;
912 update_current_view();
913 break;
914 case 'p':
915 if (toggle_pause < 0) {
916 pause_display();
917 } else {
918 resume_display();
919 }
920 break;
921 case 'P':
922 toggle_perf_panel();
923 break;
924 default:
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925 if (data)
926 update_current_view();
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927 break;
928 }
929 update_footer();
930 }
931 return NULL;
932}
933
934void init_ncurses()
935{
936 sem_init(&update_display_sem, 0, 1);
937 init_screen();
938
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939 header = create_window(6, COLS - 1, 0, 0);
940 center = create_window(LINES - 7 - 7, COLS - 1, 6, 0);
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941 status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
942 footer = create_window(1, COLS - 1, LINES - 1, 0);
943
944 print_log("Starting display");
945
946 main_panel = new_panel(center);
947 setup_perf_panel();
948
949 current_view = cpu;
950
951 basic_header();
952 update_footer();
953
954 pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
955}
956
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