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 *pref_panel_window = NULL;
  42 PANEL *pref_panel, *main_panel;
  43
  44 int pref_panel_visible = 0;
  45 int pref_line_selected = 0;
  46
  47 int last_display_index, currently_displayed_index;
  48
  49 struct processtop *selected_process = NULL;
  50 int selected_ret;
  51
  52 int selected_line = 0; /* select bar position */
  53 int selected_in_list = 0; /* selection relative to the whole list */
  54 int list_offset = 0; /* first index in the list to display (scroll) */
  55 int nb_log_lines = 0;
  56 char log_lines[MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES];
  57
  58 int max_elements = 80;
  59
  60 int toggle_threads = -1;
  61 int toggle_pause = -1;
  62
  63 int max_center_lines;
  64 GPtrArray *selected_processes;
  65
  66 pthread_t keyboard_thread;
  67
  68 struct header_view cputopview[4];
  69 struct header_view iostreamtopview[3];
  70 struct header_view fileview[3];
  71
  72 void reset_ncurses()
  73 {
  74         curs_set(1);
  75         endwin();
  76         exit(0);
  77 }
  78
  79 static void handle_sigterm(int signal)
  80 {
  81         reset_ncurses();
  82 }
  83
  84 void init_screen()
  85 {
  86         initscr();
  87         noecho();
  88         halfdelay(DEFAULT_DELAY);
  89         nonl();
  90         intrflush(stdscr, false);
  91         keypad(stdscr, true);
  92         curs_set(0);
  93
  94         if (has_colors()) {
  95                 start_color();
  96                 init_pair(1, COLOR_RED, COLOR_BLACK); /* - */
  97                 init_pair(2, COLOR_GREEN, COLOR_BLACK); /* + */
  98                 init_pair(3, COLOR_BLACK, COLOR_WHITE); /* keys */
  99                 init_pair(4, COLOR_WHITE, COLOR_GREEN); /* keys activated */
 100                 init_pair(5, COLOR_WHITE, COLOR_BLUE); /* select line */
 101                 init_pair(6, COLOR_WHITE, COLOR_GREEN); /* selected process */
 102         }
 103         termtype = getenv("TERM");
 104         if (!strcmp(termtype, "xterm") ||  !strcmp(termtype, "xterm-color") ||
 105                         !strcmp(termtype, "vt220")) {
 106                 define_key("\033[H", KEY_HOME);
 107                 define_key("\033[F", KEY_END);
 108                 define_key("\033OP", KEY_F(1));
 109                 define_key("\033OQ", KEY_F(2));
 110                 define_key("\033OR", KEY_F(3));
 111                 define_key("\033OS", KEY_F(4));
 112                 define_key("\0330U", KEY_F(6));
 113                 define_key("\033[11~", KEY_F(1));
 114                 define_key("\033[12~", KEY_F(2));
 115                 define_key("\033[13~", KEY_F(3));
 116                 define_key("\033[14~", KEY_F(4));
 117                 define_key("\033[16~", KEY_F(6));
 118                 define_key("\033[17;2~", KEY_F(18));
 119         }
 120         signal(SIGTERM, handle_sigterm);
 121         mousemask(BUTTON1_CLICKED, NULL);
 122         refresh();
 123 }
 124
 125 WINDOW *create_window(int height, int width, int startx, int starty)
 126 {
 127         WINDOW *win;
 128         win = newwin(height, width, startx, starty);
 129         box(win, 0 , 0);
 130         wrefresh(win);
 131         return win;
 132 }
 133
 134 WINDOW *create_window_no_border(int height, int width, int startx, int starty)
 135 {
 136         WINDOW *win;
 137         win = newwin(height, width, startx, starty);
 138         wrefresh(win);
 139         return win;
 140 }
 141
 142 void print_digit(WINDOW *win, int digit)
 143 {
 144         if (digit < 0) {
 145                 wattron(win, COLOR_PAIR(1));
 146                 wprintw(win, "%d", digit);
 147                 wattroff(win, COLOR_PAIR(1));
 148         } else if (digit > 0) {
 149                 wattron(win, COLOR_PAIR(2));
 150                 wprintw(win, "+%d", digit);
 151                 wattroff(win, COLOR_PAIR(2));
 152         } else {
 153                 wprintw(win, "0");
 154         }
 155 }
 156
 157 void print_digits(WINDOW *win, int first, int second)
 158 {
 159         wprintw(win, "(");
 160         print_digit(win, first);
 161         wprintw(win, ", ");
 162         print_digit(win, second);
 163         wprintw(win, ")");
 164 }
 165
 166 void print_headers(int line, char *desc, int value, int first, int second)
 167 {
 168         wattron(header, A_BOLD);
 169         mvwprintw(header, line, 4, "%s", desc);
 170         wattroff(header, A_BOLD);
 171         mvwprintw(header, line, 16, "%d", value);
 172         wmove(header, line, 24);
 173         print_digits(header, first, second);
 174         wmove(header, line, 40);
 175 }
 176
 177 void set_window_title(WINDOW *win, char *title)
 178 {
 179         wattron(win, A_BOLD);
 180         mvwprintw(win, 0, 1, title);
 181         wattroff(win, A_BOLD);
 182 }
 183
 184 void print_log(char *str)
 185 {
 186         int i;
 187         int current_line = 1;
 188         int current_char = 1;
 189         char *tmp, *tmp2;
 190         /* rotate the line buffer */
 191         if (nb_log_lines >= MAX_LOG_LINES) {
 192                 tmp = strndup(log_lines, MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES);
 193                 tmp2 = strchr(tmp, '\n');
 194                 memset(log_lines, '\0', strlen(log_lines));
 195                 strncat(log_lines, tmp2 + 1, strlen(tmp2) - 1);
 196                 log_lines[strlen(log_lines)] = '\n';
 197                 log_lines[strlen(log_lines)] = '\0';
 198                 free(tmp);
 199         }
 200         nb_log_lines++;
 201
 202         strncat(log_lines, str, MAX_LINE_LENGTH - 1);
 203
 204         if (nb_log_lines < MAX_LOG_LINES)
 205                 log_lines[strlen(log_lines)] = '\n';
 206         log_lines[strlen(log_lines)] = '\0';
 207
 208         werase(status);
 209         box(status, 0 , 0);
 210         set_window_title(status, "Status");
 211         for (i = 0; i < strlen(log_lines); i++) {
 212                 if (log_lines[i] == '\n') {
 213                         wmove(status, ++current_line, 1);
 214                         current_char = 1;
 215                 } else {
 216                         mvwprintw(status, current_line, current_char++, "%c",
 217                                         log_lines[i]);
 218                 }
 219         }
 220         wrefresh(status);
 221 }
 222
 223 int process_selected(struct processtop *process)
 224 {
 225         int i;
 226         struct processtop *stored_process;
 227
 228         for (i = 0; i < selected_processes->len; i++) {
 229                 stored_process = g_ptr_array_index(selected_processes, i);
 230                 if (!stored_process)
 231                         return 0;
 232                 if (stored_process->tid == process->tid)
 233                         return 1;
 234         }
 235         return 0;
 236 }
 237
 238 void update_selected_processes()
 239 {
 240         int i;
 241         struct processtop *stored_process;
 242
 243         if (process_selected(selected_process)) {
 244                 for (i = 0; i < selected_processes->len; i++) {
 245                         stored_process = g_ptr_array_index(selected_processes, i);
 246                         if (!stored_process)
 247                                 return;
 248                         if (stored_process->tid == selected_process->tid)
 249                                 g_ptr_array_remove(selected_processes,
 250                                                 stored_process);
 251                         print_log("Process removed");
 252                 }
 253         } else {
 254                         g_ptr_array_add(selected_processes, selected_process);
 255                 print_log("Process added");
 256         }
 257 }
 258
 259 void print_key(WINDOW *win, char *key, char *desc, int toggle)
 260 {
 261         int pair;
 262         if (toggle > 0)
 263                 pair = 4;
 264         else
 265                 pair = 3;
 266         wattron(win, COLOR_PAIR(pair));
 267         wprintw(footer, "%s", key);
 268         wattroff(win, COLOR_PAIR(pair));
 269         wprintw(footer, ":%s", desc);
 270 }
 271
 272 void update_footer()
 273 {
 274         sem_wait(&update_display_sem);
 275         werase(footer);
 276         wmove(footer, 1, 1);
 277         print_key(footer, "F2", "CPUtop  ", current_view == cpu);
 278         print_key(footer, "F3", "PerfTop  ", current_view == perf);
 279         print_key(footer, "F4", "IOTop  ", current_view == iostream);
 280         print_key(footer, "Enter", "Details  ", current_view == process_details);
 281         print_key(footer, "Space", "Highlight  ", 0);
 282         print_key(footer, "q", "Quit ", 0);
 283         print_key(footer, "r", "Pref  ", 0);
 284         print_key(footer, "p", "Pause  ", toggle_pause);
 285
 286         wrefresh(footer);
 287         sem_post(&update_display_sem);
 288 }
 289
 290 void basic_header()
 291 {
 292         werase(header);
 293         box(header, 0 , 0);
 294         set_window_title(header, "Statistics for interval [gathering data...[");
 295         wattron(header, A_BOLD);
 296         mvwprintw(header, 1, 4, "CPUs");
 297         mvwprintw(header, 2, 4, "Threads");
 298         mvwprintw(header, 3, 4, "FDs");
 299         wattroff(header, A_BOLD);
 300         wrefresh(header);
 301 }
 302
 303 struct tm format_timestamp(uint64_t timestamp)
 304 {
 305         struct tm tm;
 306         uint64_t ts_sec = 0, ts_nsec;
 307         time_t time_s;
 308
 309         ts_nsec = timestamp;
 310         ts_sec += ts_nsec / NSEC_PER_SEC;
 311         ts_nsec = ts_nsec % NSEC_PER_SEC;
 312
 313         time_s = (time_t) ts_sec;
 314
 315         localtime_r(&time_s, &tm);
 316
 317         return tm;
 318 }
 319
 320 static void scale_unit(uint64_t bytes, char *ret)
 321 {
 322         if (bytes >= 1000000000)
 323                 sprintf(ret, "%" PRIu64 "G", bytes/1000000000);
 324         if (bytes >= 1000000)
 325                 sprintf(ret, "%" PRIu64 "M", bytes/1000000);
 326         else if (bytes >= 1000)
 327                 sprintf(ret, "%" PRIu64 "K", bytes/1000);
 328         else
 329                 sprintf(ret, "%" PRIu64, bytes);
 330 }
 331 uint64_t total_io()
 332 {
 333         int i;
 334         struct processtop *tmp;
 335         uint64_t total = 0;
 336
 337         for (i = 0; i < data->process_table->len; i++) {
 338                 tmp = g_ptr_array_index(data->process_table, i);
 339                 total += tmp->fileread;
 340                 total += tmp->filewrite;
 341         }
 342
 343         return total;
 344 }
 345
 346 void update_header()
 347 {
 348         struct tm start, end;
 349         uint64_t ts_nsec_start, ts_nsec_end;
 350         char io[4];
 351
 352         ts_nsec_start = data->start % NSEC_PER_SEC;
 353         start = format_timestamp(data->start);
 354
 355         ts_nsec_end = data->end % NSEC_PER_SEC;
 356         end = format_timestamp(data->end);
 357
 358         werase(header);
 359         box(header, 0 , 0);
 360         set_window_title(header, "Statistics for interval ");
 361         wattron(header, A_BOLD);
 362
 363         wprintw(header, "[%02d:%02d:%02d.%09" PRIu64 ", %02d:%02d:%02d.%09" PRIu64 "[",
 364                 start.tm_hour, start.tm_min, start.tm_sec, ts_nsec_start,
 365                 end.tm_hour, end.tm_min, end.tm_sec, ts_nsec_end);
 366         mvwprintw(header, 1, 4, "CPUs");
 367         wattroff(header, A_BOLD);
 368         wprintw(header, "\t%d\t(max/cpu : %0.2f%)", data->cpu_table->len,
 369                         100.0/data->cpu_table->len);
 370         print_headers(2, "Threads", data->nbthreads, data->nbnewthreads,
 371                         -1*(data->nbdeadthreads));
 372         print_headers(3, "FDs", data->nbfiles, data->nbnewfiles,
 373                         -1*(data->nbclosedfiles));
 374         scale_unit(total_io(), io);
 375         mvwprintw(header, 3, 43, "%sB/sec", io);
 376         wrefresh(header);
 377 }
 378
 379 gint sort_by_cpu_desc(gconstpointer p1, gconstpointer p2)
 380 {
 381         struct processtop *n1 = *(struct processtop **)p1;
 382         struct processtop *n2 = *(struct processtop **)p2;
 383         unsigned long totaln1 = n1->totalcpunsec;
 384         unsigned long totaln2 = n2->totalcpunsec;
 385
 386         if (totaln1 < totaln2)
 387                 return 1;
 388         if (totaln1 == totaln2)
 389                 return 0;
 390         return -1;
 391 }
 392
 393 gint sort_by_tid_desc(gconstpointer p1, gconstpointer p2)
 394 {
 395         struct processtop *n1 = *(struct processtop **)p1;
 396         struct processtop *n2 = *(struct processtop **)p2;
 397         unsigned long totaln1 = n1->tid;
 398         unsigned long totaln2 = n2->tid;
 399
 400         if (totaln1 < totaln2)
 401                 return 1;
 402         if (totaln1 == totaln2)
 403                 return 0;
 404         return -1;
 405 }
 406
 407 gint sort_by_pid_desc(gconstpointer p1, gconstpointer p2)
 408 {
 409         struct processtop *n1 = *(struct processtop **)p1;
 410         struct processtop *n2 = *(struct processtop **)p2;
 411         unsigned long totaln1 = n1->pid;
 412         unsigned long totaln2 = n2->pid;
 413
 414         if (totaln1 < totaln2)
 415                 return 1;
 416         if (totaln1 == totaln2)
 417                 return 0;
 418         return -1;
 419 }
 420
 421 gint sort_by_process_read_desc(gconstpointer p1, gconstpointer p2)
 422 {
 423         struct processtop *n1 = *(struct processtop **)p1;
 424         struct processtop *n2 = *(struct processtop **)p2;
 425         unsigned long totaln1 = n1->fileread;
 426         unsigned long totaln2 = n2->fileread;
 427
 428         if (totaln1 < totaln2)
 429                 return 1;
 430         if (totaln1 == totaln2)
 431                 return 0;
 432         return -1;
 433 }
 434
 435 gint sort_by_process_write_desc(gconstpointer p1, gconstpointer p2)
 436 {
 437         struct processtop *n1 = *(struct processtop **)p1;
 438         struct processtop *n2 = *(struct processtop **)p2;
 439         unsigned long totaln1 = n1->filewrite;
 440         unsigned long totaln2 = n2->filewrite;
 441
 442         if (totaln1 < totaln2)
 443                 return 1;
 444         if (totaln1 == totaln2)
 445                 return 0;
 446         return -1;
 447 }
 448
 449 gint sort_by_process_total_desc(gconstpointer p1, gconstpointer p2)
 450 {
 451         struct processtop *n1 = *(struct processtop **)p1;
 452         struct processtop *n2 = *(struct processtop **)p2;
 453         unsigned long totaln1 = n1->totalfilewrite + n1->totalfileread;
 454         unsigned long totaln2 = n2->totalfilewrite + n2->totalfileread;
 455
 456         if (totaln1 < totaln2)
 457                 return 1;
 458         if (totaln1 == totaln2)
 459                 return 0;
 460         return -1;
 461 }
 462
 463 gint sort_by_file_read_desc(gconstpointer p1, gconstpointer p2)
 464 {
 465         struct files *n1 = *(struct files **)p1;
 466         struct files *n2 = *(struct files **)p2;
 467         unsigned long totaln1;
 468         unsigned long totaln2;
 469
 470         totaln1 = n1->read;
 471         totaln2 = n2->read;
 472
 473         if (totaln1 < totaln2)
 474                 return 1;
 475         if (totaln1 == totaln2)
 476                 return 0;
 477         return -1;
 478 }
 479
 480 gint sort_by_file_write_desc(gconstpointer p1, gconstpointer p2)
 481 {
 482         struct files *n1 = *(struct files **)p1;
 483         struct files *n2 = *(struct files **)p2;
 484         unsigned long totaln1;
 485         unsigned long totaln2;
 486
 487         totaln1 = n1->write;
 488         totaln2 = n2->write;
 489
 490         if (totaln1 < totaln2)
 491                 return 1;
 492         if (totaln1 == totaln2)
 493                 return 0;
 494         return -1;
 495 }
 496
 497 gint sort_by_file_fd_desc(gconstpointer p1, gconstpointer p2)
 498 {
 499         struct files *n1 = *(struct files **)p1;
 500         struct files *n2 = *(struct files **)p2;
 501         unsigned long totaln1;
 502         unsigned long totaln2;
 503
 504         totaln1 = n1->fd;
 505         totaln2 = n2->fd;
 506
 507         if (totaln1 < totaln2)
 508                 return 1;
 509         if (totaln1 == totaln2)
 510                 return 0;
 511         return -1;
 512 }
 513
 514 gint sort_by_cpu_group_by_threads_desc(gconstpointer p1, gconstpointer p2)
 515 {
 516         struct processtop *n1 = *(struct processtop **)p1;
 517         struct processtop *n2 = *(struct processtop **)p2;
 518         unsigned long totaln1 = n1->threadstotalcpunsec;
 519         unsigned long totaln2 = n2->threadstotalcpunsec;
 520
 521         if (totaln1 < totaln2)
 522                 return 1;
 523         if (totaln1 == totaln2)
 524                 return 0;
 525         return -1;
 526 }
 527
 528 void update_cputop_display()
 529 {
 530         int i;
 531         int header_offset = 2;
 532         struct processtop *tmp;
 533         unsigned long elapsed;
 534         double maxcputime;
 535         int nblinedisplayed = 0;
 536         int current_line = 0;
 537         int column;
 538
 539         elapsed = data->end - data->start;
 540         maxcputime = elapsed * data->cpu_table->len / 100.0;
 541
 542         if (cputopview[0].sort == 1)
 543                 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
 544         else if (cputopview[1].sort == 1)
 545                 g_ptr_array_sort(data->process_table, sort_by_pid_desc);
 546         else if (cputopview[2].sort == 1)
 547                 g_ptr_array_sort(data->process_table, sort_by_tid_desc);
 548         else if (cputopview[3].sort == 1)
 549                 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
 550         else
 551                 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
 552
 553         set_window_title(center, "CPU Top");
 554         wattron(center, A_BOLD);
 555         column = 1;
 556         for (i = 0; i < 4; i++) {
 557                 if (cputopview[i].sort)
 558                         wattron(center, A_UNDERLINE);
 559                 mvwprintw(center, 1, column, cputopview[i].title);
 560                 wattroff(center, A_UNDERLINE);
 561                 column += 10;
 562         }
 563         wattroff(center, A_BOLD);
 564
 565         max_center_lines = LINES - 5 - 7 - 1 - header_offset;
 566
 567         /* iterate the process (thread) list */
 568         for (i = list_offset; i < data->process_table->len &&
 569                         nblinedisplayed < max_center_lines; i++) {
 570                 tmp = g_ptr_array_index(data->process_table, i);
 571
 572                 if (process_selected(tmp)) {
 573                         wattron(center, COLOR_PAIR(6));
 574                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 575                 }
 576                 if (current_line == selected_line) {
 577                         selected_process = tmp;
 578                         wattron(center, COLOR_PAIR(5));
 579                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 580                 }
 581                 /* CPU(%) */
 582                 mvwprintw(center, current_line + header_offset, 1, "%1.2f",
 583                                 tmp->totalcpunsec / maxcputime);
 584                 /* TGID */
 585                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->pid);
 586                 /* PID */
 587                 mvwprintw(center, current_line + header_offset, 21, "%d", tmp->tid);
 588                 /* NAME */
 589                 mvwprintw(center, current_line + header_offset, 31, "%s", tmp->comm);
 590                 wattroff(center, COLOR_PAIR(6));
 591                 wattroff(center, COLOR_PAIR(5));
 592                 nblinedisplayed++;
 593                 current_line++;
 594         }
 595 }
 596
 597 gint sort_perf(gconstpointer p1, gconstpointer p2, gpointer key)
 598 {
 599         struct processtop *n1 = *(struct processtop **) p1;
 600         struct processtop *n2 = *(struct processtop **) p2;
 601
 602         struct perfcounter *tmp1, *tmp2;
 603         unsigned long totaln2 = 0;
 604         unsigned long totaln1 = 0;
 605
 606         if (!key)
 607                 return 0;
 608
 609         tmp1 = g_hash_table_lookup(n1->perf, key);
 610         if (!tmp1)
 611                 totaln1 = 0;
 612         else
 613                 totaln1 = tmp1->count;
 614
 615         tmp2 = g_hash_table_lookup(n2->perf, key);
 616         if (!tmp2)
 617                 totaln2 = 0;
 618         else
 619                 totaln2 = tmp2->count;
 620
 621         if (totaln1 < totaln2)
 622                 return 1;
 623         if (totaln1 == totaln2) {
 624                 totaln1 = n1->tid;
 625                 totaln2 = n2->tid;
 626                 if (totaln1 < totaln2)
 627                         return 1;
 628                 return -1;
 629         }
 630         return -1;
 631 }
 632
 633 void print_key_title(char *key, int line)
 634 {
 635         wattron(center, A_BOLD);
 636         mvwprintw(center, line, 1, "%s", key);
 637         mvwprintw(center, line, 30, " ");
 638         wattroff(center, A_BOLD);
 639 }
 640
 641 void update_process_details()
 642 {
 643         unsigned long elapsed;
 644         double maxcputime;
 645         struct processtop *tmp;
 646         struct files *file_tmp;
 647         int i, j = 0;
 648         char unit[4];
 649         char filename_buf[COLS];
 650         int line = 1;
 651         int column;
 652         GPtrArray *newfilearray = g_ptr_array_new();
 653         GHashTableIter iter;
 654         struct perfcounter *perfn1, *perfn2;
 655         gpointer key;
 656
 657         set_window_title(center, "Process details");
 658
 659
 660         tmp = find_process_tid(data,
 661                         selected_process->tid,
 662                         selected_process->comm);
 663         elapsed = data->end - data->start;
 664         maxcputime = elapsed * data->cpu_table->len / 100.0;
 665
 666         print_key_title("Name", line++);
 667         wprintw(center, "%s", selected_process->comm);
 668         print_key_title("TID", line++);
 669         wprintw(center, "%d", selected_process->tid);
 670         if (!tmp) {
 671                 print_key_title("Does not exit at this time", 3);
 672                 return;
 673         }
 674
 675         print_key_title("PID", line++);
 676         wprintw(center, "%d", tmp->pid);
 677         print_key_title("PPID", line++);
 678         wprintw(center, "%d", tmp->ppid);
 679         print_key_title("CPU", line++);
 680         wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
 681
 682         print_key_title("READ B/s", line++);
 683         scale_unit(tmp->fileread, unit);
 684         wprintw(center, "%s", unit);
 685
 686         print_key_title("WRITE B/s", line++);
 687         scale_unit(tmp->filewrite, unit);
 688         wprintw(center, "%s", unit);
 689
 690         g_hash_table_iter_init(&iter, global_perf_liszt);
 691         while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 692                 print_key_title((char *) key, line++);
 693                 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
 694                 wprintw(center, "%d", perfn2 ? perfn2->count : 0);
 695         }
 696         line++;
 697
 698         wattron(center, A_BOLD);
 699         column = 1;
 700         for (i = 0; i < 3; i++) {
 701                 if (fileview[i].sort)
 702                         wattron(center, A_UNDERLINE);
 703                 mvwprintw(center, line, column, fileview[i].title);
 704                 wattroff(center, A_UNDERLINE);
 705                 column += 10;
 706         }
 707         mvwprintw(center, line++, column, "FILENAME");
 708         wattroff(center, A_BOLD);
 709
 710         /*
 711          * since the process_files_table array could contain NULL file structures,
 712          * and that the positions inside the array is important (it is the FD), we
 713          * need to create a temporary array that we can sort.
 714          */
 715         for (i = 0; i < tmp->process_files_table->len; i++) {
 716                 file_tmp = g_ptr_array_index(tmp->process_files_table, i);
 717                 if (file_tmp)
 718                         g_ptr_array_add(newfilearray, file_tmp);
 719         }
 720
 721         if (fileview[0].sort == 1)
 722                 g_ptr_array_sort(newfilearray, sort_by_file_fd_desc);
 723         else if (fileview[1].sort == 1)
 724                 g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
 725         else if (fileview[2].sort == 1)
 726                 g_ptr_array_sort(newfilearray, sort_by_file_write_desc);
 727         else
 728                 g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
 729
 730         for (i = selected_line; i < newfilearray->len &&
 731                         i < (selected_line + max_center_lines - line + 2); i++) {
 732                 file_tmp = g_ptr_array_index(newfilearray, i);
 733                 if (!file_tmp)
 734                         continue;
 735                 mvwprintw(center, line + j, 1, "%d", file_tmp->fd);
 736                 scale_unit(file_tmp->read, unit);
 737                 mvwprintw(center, line + j, 11, "%s", unit);
 738                 scale_unit(file_tmp->write, unit);
 739                 mvwprintw(center, line + j, 21, "%s", unit);
 740                 snprintf(filename_buf, COLS - 25, "%s", file_tmp->name);
 741                 mvwprintw(center, line + j, 31, "%s", filename_buf);
 742                 j++;
 743         }
 744         g_ptr_array_free(newfilearray, TRUE);
 745 }
 746
 747 void update_perf()
 748 {
 749         int i;
 750         int nblinedisplayed = 0;
 751         int current_line = 0;
 752         struct processtop *tmp;
 753         int header_offset = 2;
 754         int perf_row = 40;
 755         struct perfcounter *perfn1, *perfn2;
 756         char *perf_key = NULL;
 757         int value;
 758         GHashTableIter iter;
 759         gpointer key;
 760
 761         set_window_title(center, "Perf Top");
 762         wattron(center, A_BOLD);
 763         mvwprintw(center, 1, 1, "PID");
 764         mvwprintw(center, 1, 11, "TID");
 765         mvwprintw(center, 1, 22, "NAME");
 766
 767         perf_row = 40;
 768         g_hash_table_iter_init(&iter, global_perf_liszt);
 769         while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 770                 if (perfn1->visible) {
 771                         /* + 5 to strip the "perf_" prefix */
 772                         mvwprintw(center, 1, perf_row, "%s",
 773                                         (char *) key + 5);
 774                         perf_row += 20;
 775                 }
 776                 if (perfn1->sort) {
 777                         perf_key = (char *) key;
 778                 }
 779         }
 780
 781         wattroff(center, A_BOLD);
 782
 783         g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
 784
 785         for (i = 0; i < data->process_table->len &&
 786                         nblinedisplayed < max_center_lines; i++) {
 787                 tmp = g_ptr_array_index(data->process_table, i);
 788
 789                 if (process_selected(tmp)) {
 790                         wattron(center, COLOR_PAIR(6));
 791                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 792                 }
 793                 if (current_line == selected_line) {
 794                         selected_process = tmp;
 795                         wattron(center, COLOR_PAIR(5));
 796                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 797                 }
 798
 799                 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
 800                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 801                 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 802
 803                 g_hash_table_iter_init(&iter, global_perf_liszt);
 804
 805                 perf_row = 40;
 806                 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 807                         if (perfn1->visible) {
 808                                 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
 809                                 if (perfn2)
 810                                         value = perfn2->count;
 811                                 else
 812                                         value = 0;
 813                                 mvwprintw(center, current_line + header_offset,
 814                                                 perf_row, "%d", value);
 815                                 perf_row += 20;
 816                         }
 817                 }
 818
 819                 wattroff(center, COLOR_PAIR(6));
 820                 wattroff(center, COLOR_PAIR(5));
 821                 nblinedisplayed++;
 822                 current_line++;
 823         }
 824 }
 825
 826 void update_iostream()
 827 {
 828         int i;
 829         int header_offset = 2;
 830         struct processtop *tmp;
 831         int nblinedisplayed = 0;
 832         int current_line = 0;
 833         int total = 0;
 834         char unit[4];
 835         int column;
 836
 837         set_window_title(center, "IO Top");
 838         wattron(center, A_BOLD);
 839         mvwprintw(center, 1, 1, "PID");
 840         mvwprintw(center, 1, 11, "TID");
 841         mvwprintw(center, 1, 22, "NAME");
 842         column = 40;
 843         for (i = 0; i < 3; i++) {
 844                 if (iostreamtopview[i].sort)
 845                         wattron(center, A_UNDERLINE);
 846                 mvwprintw(center, 1, column, iostreamtopview[i].title);
 847                 wattroff(center, A_UNDERLINE);
 848                 column += 12;
 849         }
 850         wattroff(center, A_BOLD);
 851         wattroff(center, A_UNDERLINE);
 852
 853         if (iostreamtopview[0].sort == 1)
 854                 g_ptr_array_sort(data->process_table, sort_by_process_read_desc);
 855         else if (iostreamtopview[1].sort == 1)
 856                 g_ptr_array_sort(data->process_table, sort_by_process_write_desc);
 857         else if (iostreamtopview[2].sort == 1)
 858                 g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 859         else
 860                 g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 861
 862         for (i = list_offset; i < data->process_table->len &&
 863                         nblinedisplayed < max_center_lines; i++) {
 864                 tmp = g_ptr_array_index(data->process_table, i);
 865
 866                 if (process_selected(tmp)) {
 867                         wattron(center, COLOR_PAIR(6));
 868                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 869                 }
 870                 if (current_line == selected_line) {
 871                         selected_process = tmp;
 872                         wattron(center, COLOR_PAIR(5));
 873                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 874                 }
 875                 /* TGID */
 876                 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
 877                 /* PID */
 878                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 879                 /* NAME */
 880                 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 881
 882                 /* READ (bytes/sec) */
 883                 scale_unit(tmp->fileread, unit);
 884                 mvwprintw(center, current_line + header_offset, 40, "%s", unit);
 885
 886                 /* WRITE (bytes/sec) */
 887                 scale_unit(tmp->filewrite, unit);
 888                 mvwprintw(center, current_line + header_offset, 52, "%s", unit);
 889
 890                 /* TOTAL STREAM */
 891                 total = tmp->totalfileread + tmp->totalfilewrite;
 892
 893                 scale_unit(total, unit);
 894                 mvwprintw(center, current_line + header_offset, 64, "%s", unit);
 895
 896                 wattroff(center, COLOR_PAIR(6));
 897                 wattroff(center, COLOR_PAIR(5));
 898                 nblinedisplayed++;
 899                 current_line++;
 900         }
 901 }
 902
 903 void update_current_view()
 904 {
 905         sem_wait(&update_display_sem);
 906         if (!data)
 907                 return;
 908         update_header();
 909
 910         werase(center);
 911         box(center, 0, 0);
 912         switch (current_view) {
 913         case cpu:
 914                 update_cputop_display();
 915                 break;
 916         case perf:
 917                 update_perf();
 918                 break;
 919         case process_details:
 920                 update_process_details();
 921                 break;
 922         case iostream:
 923                 update_iostream();
 924                 break;
 925         case tree:
 926                 update_cputop_display();
 927                 break;
 928         default:
 929                 break;
 930         }
 931         update_panels();
 932         doupdate();
 933         sem_post(&update_display_sem);
 934 }
 935
 936 void update_process_detail_pref(int *line_selected, int toggle_view, int toggle_sort)
 937 {
 938         int i;
 939         int size;
 940
 941         if (!data)
 942                 return;
 943         if (pref_panel_window) {
 944                 del_panel(pref_panel);
 945                 delwin(pref_panel_window);
 946         }
 947         size = 3;
 948
 949         pref_panel_window = create_window(size + 2, 30, 10, 10);
 950         pref_panel = new_panel(pref_panel_window);
 951
 952         werase(pref_panel_window);
 953         box(pref_panel_window, 0 , 0);
 954         set_window_title(pref_panel_window, "Process Detail Preferences ");
 955         wattron(pref_panel_window, A_BOLD);
 956         mvwprintw(pref_panel_window, size + 1, 1,
 957                         " 's' : sort, space : toggle");
 958         wattroff(pref_panel_window, A_BOLD);
 959
 960         if (*line_selected > (size - 1))
 961                 *line_selected = size - 1;
 962         if (toggle_sort == 1) {
 963                 if (fileview[*line_selected].sort == 1)
 964                         fileview[*line_selected].reverse = 1;
 965                 for (i = 0; i < size; i++)
 966                         fileview[i].sort = 0;
 967                 fileview[*line_selected].sort = 1;
 968                 update_current_view();
 969         }
 970
 971         for (i = 0; i < size; i++) {
 972                 if (i == *line_selected) {
 973                         wattron(pref_panel_window, COLOR_PAIR(5));
 974                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
 975                 }
 976                 if (fileview[i].sort == 1)
 977                         wattron(pref_panel_window, A_BOLD);
 978                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
 979                                 fileview[i].title);
 980                 wattroff(pref_panel_window, A_BOLD);
 981                 wattroff(pref_panel_window, COLOR_PAIR(5));
 982
 983         }
 984         update_panels();
 985         doupdate();
 986 }
 987
 988 void update_iostream_pref(int *line_selected, int toggle_view, int toggle_sort)
 989 {
 990         int i;
 991         int size;
 992
 993         if (!data)
 994                 return;
 995         if (pref_panel_window) {
 996                 del_panel(pref_panel);
 997                 delwin(pref_panel_window);
 998         }
 999         size = 3;
1000
1001         pref_panel_window = create_window(size + 2, 30, 10, 10);
1002         pref_panel = new_panel(pref_panel_window);
1003
1004         werase(pref_panel_window);
1005         box(pref_panel_window, 0 , 0);
1006         set_window_title(pref_panel_window, "IOTop Preferences ");
1007         wattron(pref_panel_window, A_BOLD);
1008         mvwprintw(pref_panel_window, size + 1, 1,
1009                         " 's' : sort, space : toggle");
1010         wattroff(pref_panel_window, A_BOLD);
1011
1012         if (*line_selected > (size - 1))
1013                 *line_selected = size - 1;
1014         if (toggle_sort == 1) {
1015                 if (iostreamtopview[*line_selected].sort == 1)
1016                         iostreamtopview[*line_selected].reverse = 1;
1017                 for (i = 0; i < size; i++)
1018                         iostreamtopview[i].sort = 0;
1019                 iostreamtopview[*line_selected].sort = 1;
1020                 update_current_view();
1021         }
1022
1023         for (i = 0; i < size; i++) {
1024                 if (i == *line_selected) {
1025                         wattron(pref_panel_window, COLOR_PAIR(5));
1026                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1027                 }
1028                 if (iostreamtopview[i].sort == 1)
1029                         wattron(pref_panel_window, A_BOLD);
1030                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
1031                                 iostreamtopview[i].title);
1032                 wattroff(pref_panel_window, A_BOLD);
1033                 wattroff(pref_panel_window, COLOR_PAIR(5));
1034
1035         }
1036         update_panels();
1037         doupdate();
1038 }
1039
1040 void update_cpu_pref(int *line_selected, int toggle_view, int toggle_sort)
1041 {
1042         int i;
1043         int size;
1044
1045         if (!data)
1046                 return;
1047         if (pref_panel_window) {
1048                 del_panel(pref_panel);
1049                 delwin(pref_panel_window);
1050         }
1051         size = 4;
1052
1053         pref_panel_window = create_window(size + 2, 30, 10, 10);
1054         pref_panel = new_panel(pref_panel_window);
1055
1056         werase(pref_panel_window);
1057         box(pref_panel_window, 0 , 0);
1058         set_window_title(pref_panel_window, "CPUTop Preferences ");
1059         wattron(pref_panel_window, A_BOLD);
1060         mvwprintw(pref_panel_window, size + 1, 1,
1061                         " 's' : sort, space : toggle");
1062         wattroff(pref_panel_window, A_BOLD);
1063
1064         if (*line_selected > (size - 1))
1065                 *line_selected = size - 1;
1066         if (toggle_sort == 1) {
1067                 /* special case, we don't support sorting by procname for now */
1068                 if (*line_selected != 3) {
1069                         if (cputopview[*line_selected].sort == 1)
1070                                 cputopview[*line_selected].reverse = 1;
1071                         for (i = 0; i < size; i++)
1072                                 cputopview[i].sort = 0;
1073                         cputopview[*line_selected].sort = 1;
1074                         update_current_view();
1075                 }
1076         }
1077
1078         for (i = 0; i < size; i++) {
1079                 if (i == *line_selected) {
1080                         wattron(pref_panel_window, COLOR_PAIR(5));
1081                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1082                 }
1083                 if (cputopview[i].sort == 1)
1084                         wattron(pref_panel_window, A_BOLD);
1085                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
1086                                 cputopview[i].title);
1087                 wattroff(pref_panel_window, A_BOLD);
1088                 wattroff(pref_panel_window, COLOR_PAIR(5));
1089
1090         }
1091         update_panels();
1092         doupdate();
1093 }
1094
1095 void update_perf_pref(int *line_selected, int toggle_view, int toggle_sort)
1096 {
1097         int i;
1098         struct perfcounter *perf;
1099         GList *perflist;
1100         int size;
1101
1102         if (!data)
1103                 return;
1104         if (pref_panel_window) {
1105                 del_panel(pref_panel);
1106                 delwin(pref_panel_window);
1107         }
1108         size = g_hash_table_size(global_perf_liszt);
1109
1110         pref_panel_window = create_window(size + 2, 30, 10, 10);
1111         pref_panel = new_panel(pref_panel_window);
1112
1113         werase(pref_panel_window);
1114         box(pref_panel_window, 0 , 0);
1115         set_window_title(pref_panel_window, "Perf Preferences ");
1116         wattron(pref_panel_window, A_BOLD);
1117         mvwprintw(pref_panel_window, g_hash_table_size(global_perf_liszt) + 1, 1,
1118                         " 's' : sort, space : toggle");
1119         wattroff(pref_panel_window, A_BOLD);
1120
1121         if (toggle_sort == 1) {
1122                 i = 0;
1123                 perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
1124                 while (perflist) {
1125                         perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
1126                         if (i != *line_selected)
1127                                 perf->sort = 0;
1128                         else
1129                                 perf->sort = 1;
1130                         i++;
1131                         perflist = g_list_next(perflist);
1132                 }
1133                 update_current_view();
1134         }
1135
1136         i = 0;
1137         perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
1138         while (perflist) {
1139                 perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
1140                 if (i == *line_selected && toggle_view == 1) {
1141                         perf->visible = perf->visible == 1 ? 0:1;
1142                         update_current_view();
1143                 }
1144                 if (i == *line_selected) {
1145                         wattron(pref_panel_window, COLOR_PAIR(5));
1146                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1147                 }
1148                 if (perf->sort == 1)
1149                         wattron(pref_panel_window, A_BOLD);
1150                 mvwprintw(pref_panel_window, i + 1, 1, "[%c] %s",
1151                                 perf->visible == 1 ? 'x' : ' ',
1152                                 (char *) perflist->data + 5);
1153                 wattroff(pref_panel_window, A_BOLD);
1154                 wattroff(pref_panel_window, COLOR_PAIR(5));
1155                 i++;
1156                 perflist = g_list_next(perflist);
1157         }
1158         update_panels();
1159         doupdate();
1160 }
1161
1162 int update_preference_panel(int *line_selected, int toggle_view, int toggle_sort)
1163 {
1164         int ret = 0;
1165
1166         switch(current_view) {
1167                 case perf:
1168                         update_perf_pref(line_selected, toggle_view, toggle_sort);
1169                         break;
1170                 case cpu:
1171                         update_cpu_pref(line_selected, toggle_view, toggle_sort);
1172                         break;
1173                 case iostream:
1174                         update_iostream_pref(line_selected, toggle_view, toggle_sort);
1175                         break;
1176                 case process_details:
1177                         update_process_detail_pref(line_selected, toggle_view, toggle_sort);
1178                         break;
1179                 default:
1180                         ret = -1;
1181                         break;
1182         }
1183
1184         return ret;
1185 }
1186
1187 void toggle_pref_panel(void)
1188 {
1189         int ret;
1190
1191         if (pref_panel_visible) {
1192                 hide_panel(pref_panel);
1193                 pref_panel_visible = 0;
1194         } else {
1195                 ret = update_preference_panel(&pref_line_selected, 0, 0);
1196                 if (ret < 0)
1197                         return;
1198                 show_panel(pref_panel);
1199                 pref_panel_visible = 1;
1200         }
1201         update_panels();
1202         doupdate();
1203 }
1204
1205 void display(unsigned int index)
1206 {
1207         last_display_index = index;
1208         currently_displayed_index = index;
1209         data = g_ptr_array_index(copies, index);
1210         if (!data)
1211                 return;
1212         max_elements = data->process_table->len;
1213         update_current_view();
1214         update_footer();
1215         update_panels();
1216         doupdate();
1217 }
1218
1219 void pause_display()
1220 {
1221         toggle_pause = 1;
1222         print_log("Pause");
1223         sem_wait(&pause_sem);
1224 }
1225
1226 void resume_display()
1227 {
1228         toggle_pause = -1;
1229         print_log("Resume");
1230         sem_post(&pause_sem);
1231 }
1232
1233 void *handle_keyboard(void *p)
1234 {
1235         int ch;
1236         while((ch = getch())) {
1237                 switch(ch) {
1238                 /* Move the cursor and scroll */
1239                 case 'j':
1240                 case KEY_DOWN:
1241                         if (pref_panel_visible) {
1242                                 pref_line_selected++;
1243                                 update_preference_panel(&pref_line_selected, 0, 0);
1244                         } else {
1245                                 if (selected_line < (max_center_lines - 1) &&
1246                                                 selected_line < max_elements - 1) {
1247                                         selected_line++;
1248                                         selected_in_list++;
1249                                 } else if (selected_in_list < (max_elements - 1)
1250                                                 && (list_offset < (max_elements - max_center_lines))) {
1251                                         selected_in_list++;
1252                                         list_offset++;
1253                                 }
1254                                 update_current_view();
1255                         }
1256                         break;
1257                 case KEY_NPAGE:
1258                         break;
1259                 case 'k':
1260                 case KEY_UP:
1261                         if (pref_panel_visible) {
1262                                 if (pref_line_selected > 0)
1263                                         pref_line_selected--;
1264                                 update_preference_panel(&pref_line_selected, 0, 0);
1265                         } else {
1266                                 if (selected_line > 0) {
1267                                         selected_line--;
1268                                         selected_in_list--;
1269                                 } else if (selected_in_list > 0 && list_offset > 0) {
1270                                         selected_in_list--;
1271                                         list_offset--;
1272                                 }
1273                                 update_current_view();
1274                         }
1275                         break;
1276                 case KEY_PPAGE:
1277                         break;
1278
1279                 /* Navigate the history with arrows */
1280                 case KEY_LEFT:
1281                         if (currently_displayed_index > 0) {
1282                                 currently_displayed_index--;
1283                                 print_log("Going back in time");
1284                         } else {
1285                                 print_log("Cannot rewind, last data is already displayed");
1286                         }
1287                         data = g_ptr_array_index(copies, currently_displayed_index);
1288                         max_elements = data->process_table->len;
1289
1290                         /* we force to pause the display when moving in time */
1291                         if (toggle_pause < 0)
1292                                 pause_display();
1293
1294                         update_current_view();
1295                         update_footer();
1296                         break;
1297                 case KEY_RIGHT:
1298                         if (currently_displayed_index < last_display_index) {
1299                                 currently_displayed_index++;
1300                                 print_log("Going forward in time");
1301                                 data = g_ptr_array_index(copies, currently_displayed_index);
1302                                 max_elements = data->process_table->len;
1303                                 update_current_view();
1304                                 update_footer();
1305                         } else {
1306                                 print_log("Manually moving forward");
1307                                 sem_post(&timer);
1308                                 if (toggle_pause > 0) {
1309                                         sem_post(&pause_sem);
1310                                         update_current_view();
1311                                         sem_wait(&pause_sem);
1312                                 }
1313                         }
1314
1315                         break;
1316                 case ' ':
1317                         if (pref_panel_visible) {
1318                                 update_preference_panel(&pref_line_selected, 1, 0);
1319                         } else {
1320                                 update_selected_processes();
1321                                 update_current_view();
1322                         }
1323                         break;
1324                 case 's':
1325                         if (pref_panel_visible)
1326                                 update_preference_panel(&pref_line_selected, 0, 1);
1327                         break;
1328
1329                 case 13: /* FIXME : KEY_ENTER ?? */
1330                         if (pref_panel_visible)
1331                                 break;
1332                         if (current_view != process_details) {
1333                                 previous_view = current_view;
1334                                 current_view = process_details;
1335                         } else {
1336                                 current_view = previous_view;
1337                                 previous_view = process_details;
1338                         }
1339                         update_current_view();
1340                         break;
1341
1342                 case KEY_F(1):
1343                         if (pref_panel_visible)
1344                                 toggle_pref_panel();
1345                         current_view = cpu;
1346                         selected_line = 0;
1347                         update_current_view();
1348                         break;
1349                 case KEY_F(2):
1350                         if (pref_panel_visible)
1351                                 toggle_pref_panel();
1352                         current_view = cpu;
1353                         selected_line = 0;
1354                         update_current_view();
1355                         break;
1356                 case KEY_F(3):
1357                         if (pref_panel_visible)
1358                                 toggle_pref_panel();
1359                         current_view = perf;
1360                         selected_line = 0;
1361                         update_current_view();
1362                         break;
1363                 case KEY_F(4):
1364                         if (pref_panel_visible)
1365                                 toggle_pref_panel();
1366                         current_view = iostream;
1367                         selected_line = 0;
1368                         update_current_view();
1369                         break;
1370                 case KEY_F(10):
1371                 case 'q':
1372                         reset_ncurses();
1373                         break;
1374                 case 't':
1375                         toggle_threads *= -1;
1376                         update_current_view();
1377                         break;
1378                 case 'p':
1379                         if (toggle_pause < 0) {
1380                                 pause_display();
1381                         } else {
1382                                 resume_display();
1383                         }
1384                         break;
1385                 case 'r':
1386                         toggle_pref_panel();
1387                         break;
1388                 /* ESCAPE, but slow to process, don't know why */
1389                 case 27:
1390                         if (pref_panel_visible)
1391                                 toggle_pref_panel();
1392                         else if (current_view == process_details) {
1393                                 current_view = previous_view;
1394                                 previous_view = process_details;
1395                         }
1396                         update_current_view();
1397                         break;
1398                 default:
1399                         if (data)
1400                                 update_current_view();
1401                         break;
1402                 }
1403                 update_footer();
1404         }
1405         return NULL;
1406 }
1407
1408 void init_view_headers()
1409 {
1410         cputopview[0].title = strdup("CPU(%)");
1411         cputopview[0].sort = 1;
1412         cputopview[1].title = strdup("TGID");
1413         cputopview[2].title = strdup("PID");
1414         cputopview[3].title = strdup("NAME");
1415
1416         iostreamtopview[0].title = strdup("R (B/sec)");
1417         iostreamtopview[1].title = strdup("W (B/sec)");
1418         iostreamtopview[2].title = strdup("Total (B)");
1419         iostreamtopview[2].sort = 1;
1420
1421         fileview[0].title = strdup("FD");
1422         fileview[1].title = strdup("READ");
1423         fileview[1].sort = 1;
1424         fileview[2].title = strdup("WRITE");
1425 }
1426
1427 void init_ncurses()
1428 {
1429         selected_processes = g_ptr_array_new();
1430         sem_init(&update_display_sem, 0, 1);
1431         init_view_headers();
1432         init_screen();
1433
1434         header = create_window(5, COLS - 1, 0, 0);
1435         center = create_window(LINES - 5 - 7, COLS - 1, 5, 0);
1436         status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
1437         footer = create_window(1, COLS - 1, LINES - 1, 0);
1438
1439         print_log("Starting display");
1440
1441         main_panel = new_panel(center);
1442
1443         current_view = cpu;
1444
1445         basic_header();
1446         update_footer();
1447
1448         pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
1449 }