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->filewrite + n1->fileread;
 454         unsigned long totaln2 = n2->filewrite + n2->fileread;
 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         GPtrArray *newfilearray = g_ptr_array_new();
 652         GHashTableIter iter;
 653         struct perfcounter *perfn1, *perfn2;
 654         gpointer key;
 655
 656         set_window_title(center, "Process details");
 657
 658
 659         tmp = find_process_tid(data,
 660                         selected_process->tid,
 661                         selected_process->comm);
 662         elapsed = data->end - data->start;
 663         maxcputime = elapsed * data->cpu_table->len / 100.0;
 664
 665         print_key_title("Name", line++);
 666         wprintw(center, "%s", selected_process->comm);
 667         print_key_title("TID", line++);
 668         wprintw(center, "%d", selected_process->tid);
 669         if (!tmp) {
 670                 print_key_title("Does not exit at this time", 3);
 671                 return;
 672         }
 673
 674         print_key_title("PID", line++);
 675         wprintw(center, "%d", tmp->pid);
 676         print_key_title("PPID", line++);
 677         wprintw(center, "%d", tmp->ppid);
 678         print_key_title("CPU", line++);
 679         wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
 680
 681         print_key_title("READ B/s", line++);
 682         scale_unit(tmp->fileread, unit);
 683         wprintw(center, "%s", unit);
 684
 685         print_key_title("WRITE B/s", line++);
 686         scale_unit(tmp->filewrite, unit);
 687         wprintw(center, "%s", unit);
 688
 689         g_hash_table_iter_init(&iter, global_perf_liszt);
 690         while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 691                 print_key_title((char *) key, line++);
 692                 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
 693                 wprintw(center, "%d", perfn2 ? perfn2->count : 0);
 694         }
 695         line++;
 696
 697         wattron(center, A_BOLD);
 698         mvwprintw(center, line, 1, "FD");
 699         mvwprintw(center, line, 10, "READ");
 700         mvwprintw(center, line, 17, "WRITE");
 701         mvwprintw(center, line++, 24, "FILENAME");
 702         wattroff(center, A_BOLD);
 703
 704         /*
 705          * since the process_files_table array could contain NULL file structures,
 706          * and that the positions inside the array is important (it is the FD), we
 707          * need to create a temporary array that we can sort.
 708          */
 709         for (i = 0; i < tmp->process_files_table->len; i++) {
 710                 file_tmp = g_ptr_array_index(tmp->process_files_table, i);
 711                 if (file_tmp)
 712                         g_ptr_array_add(newfilearray, file_tmp);
 713         }
 714
 715         if (fileview[0].sort == 1)
 716                 g_ptr_array_sort(newfilearray, sort_by_file_fd_desc);
 717         else if (fileview[1].sort == 1)
 718                 g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
 719         else if (fileview[2].sort == 1)
 720                 g_ptr_array_sort(newfilearray, sort_by_file_write_desc);
 721         else
 722                 g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
 723
 724         for (i = selected_line; i < newfilearray->len &&
 725                         i < (selected_line + max_center_lines - line + 2); i++) {
 726                 file_tmp = g_ptr_array_index(newfilearray, i);
 727                 if (!file_tmp)
 728                         continue;
 729                 mvwprintw(center, line + j, 1, "%d", file_tmp->fd);
 730                 scale_unit(file_tmp->read, unit);
 731                 mvwprintw(center, line + j, 10, "%s", unit);
 732                 scale_unit(file_tmp->write, unit);
 733                 mvwprintw(center, line + j, 17, "%s", unit);
 734                 snprintf(filename_buf, COLS - 25, "%s", file_tmp->name);
 735                 mvwprintw(center, line + j, 24, "%s", filename_buf);
 736                 j++;
 737         }
 738         g_ptr_array_free(newfilearray, TRUE);
 739 }
 740
 741 void update_perf()
 742 {
 743         int i;
 744         int nblinedisplayed = 0;
 745         int current_line = 0;
 746         struct processtop *tmp;
 747         int header_offset = 2;
 748         int perf_row = 40;
 749         struct perfcounter *perfn1, *perfn2;
 750         char *perf_key = NULL;
 751         int value;
 752         GHashTableIter iter;
 753         gpointer key;
 754
 755         set_window_title(center, "Perf Top");
 756         wattron(center, A_BOLD);
 757         mvwprintw(center, 1, 1, "PID");
 758         mvwprintw(center, 1, 11, "TID");
 759         mvwprintw(center, 1, 22, "NAME");
 760
 761         perf_row = 40;
 762         g_hash_table_iter_init(&iter, global_perf_liszt);
 763         while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 764                 if (perfn1->visible) {
 765                         /* + 5 to strip the "perf_" prefix */
 766                         mvwprintw(center, 1, perf_row, "%s",
 767                                         (char *) key + 5);
 768                         perf_row += 20;
 769                 }
 770                 if (perfn1->sort) {
 771                         perf_key = (char *) key;
 772                 }
 773         }
 774
 775         wattroff(center, A_BOLD);
 776
 777         g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
 778
 779         for (i = 0; i < data->process_table->len &&
 780                         nblinedisplayed < max_center_lines; i++) {
 781                 tmp = g_ptr_array_index(data->process_table, i);
 782
 783                 if (process_selected(tmp)) {
 784                         wattron(center, COLOR_PAIR(6));
 785                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 786                 }
 787                 if (current_line == selected_line) {
 788                         selected_process = tmp;
 789                         wattron(center, COLOR_PAIR(5));
 790                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 791                 }
 792
 793                 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
 794                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 795                 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 796
 797                 g_hash_table_iter_init(&iter, global_perf_liszt);
 798
 799                 perf_row = 40;
 800                 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 801                         if (perfn1->visible) {
 802                                 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
 803                                 if (perfn2)
 804                                         value = perfn2->count;
 805                                 else
 806                                         value = 0;
 807                                 mvwprintw(center, current_line + header_offset,
 808                                                 perf_row, "%d", value);
 809                                 perf_row += 20;
 810                         }
 811                 }
 812
 813                 wattroff(center, COLOR_PAIR(6));
 814                 wattroff(center, COLOR_PAIR(5));
 815                 nblinedisplayed++;
 816                 current_line++;
 817         }
 818 }
 819
 820 void update_iostream()
 821 {
 822         int i;
 823         int header_offset = 2;
 824         struct processtop *tmp;
 825         int nblinedisplayed = 0;
 826         int current_line = 0;
 827         int total = 0;
 828         char unit[4];
 829
 830         set_window_title(center, "IO Top");
 831         wattron(center, A_BOLD);
 832         mvwprintw(center, 1, 1, "PID");
 833         mvwprintw(center, 1, 11, "TID");
 834         mvwprintw(center, 1, 22, "NAME");
 835         mvwprintw(center, 1, 40, "R (B/sec)");
 836         mvwprintw(center, 1, 52, "W (B/sec)");
 837         mvwprintw(center, 1, 64, "Total");
 838         wattroff(center, A_BOLD);
 839
 840         if (iostreamtopview[0].sort == 1)
 841                 g_ptr_array_sort(data->process_table, sort_by_process_read_desc);
 842         else if (iostreamtopview[1].sort == 1)
 843                 g_ptr_array_sort(data->process_table, sort_by_process_write_desc);
 844         else if (iostreamtopview[2].sort == 1)
 845                 g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 846         else
 847                 g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 848
 849         for (i = list_offset; i < data->process_table->len &&
 850                         nblinedisplayed < max_center_lines; i++) {
 851                 tmp = g_ptr_array_index(data->process_table, i);
 852
 853                 if (process_selected(tmp)) {
 854                         wattron(center, COLOR_PAIR(6));
 855                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 856                 }
 857                 if (current_line == selected_line) {
 858                         selected_process = tmp;
 859                         wattron(center, COLOR_PAIR(5));
 860                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 861                 }
 862                 /* TGID */
 863                 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
 864                 /* PID */
 865                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 866                 /* NAME */
 867                 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 868
 869                 /* READ (bytes/sec) */
 870                 scale_unit(tmp->fileread, unit);
 871                 mvwprintw(center, current_line + header_offset, 40, "%s", unit);
 872
 873                 /* WRITE (bytes/sec) */
 874                 scale_unit(tmp->filewrite, unit);
 875                 mvwprintw(center, current_line + header_offset, 52, "%s", unit);
 876
 877                 /* TOTAL STREAM */
 878                 total = tmp->totalfileread + tmp->totalfilewrite;
 879
 880                 scale_unit(total, unit);
 881                 mvwprintw(center, current_line + header_offset, 64, "%s", unit);
 882
 883                 wattroff(center, COLOR_PAIR(6));
 884                 wattroff(center, COLOR_PAIR(5));
 885                 nblinedisplayed++;
 886                 current_line++;
 887         }
 888 }
 889
 890 void update_current_view()
 891 {
 892         sem_wait(&update_display_sem);
 893         if (!data)
 894                 return;
 895         update_header();
 896
 897         werase(center);
 898         box(center, 0, 0);
 899         switch (current_view) {
 900         case cpu:
 901                 update_cputop_display();
 902                 break;
 903         case perf:
 904                 update_perf();
 905                 break;
 906         case process_details:
 907                 update_process_details();
 908                 break;
 909         case iostream:
 910                 update_iostream();
 911                 break;
 912         case tree:
 913                 update_cputop_display();
 914                 break;
 915         default:
 916                 break;
 917         }
 918         update_panels();
 919         doupdate();
 920         sem_post(&update_display_sem);
 921 }
 922
 923 void update_process_detail_pref(int *line_selected, int toggle_view, int toggle_sort)
 924 {
 925         int i;
 926         int size;
 927
 928         if (!data)
 929                 return;
 930         if (pref_panel_window) {
 931                 del_panel(pref_panel);
 932                 delwin(pref_panel_window);
 933         }
 934         size = 3;
 935
 936         pref_panel_window = create_window(size + 2, 30, 10, 10);
 937         pref_panel = new_panel(pref_panel_window);
 938
 939         werase(pref_panel_window);
 940         box(pref_panel_window, 0 , 0);
 941         set_window_title(pref_panel_window, "Process Detail Preferences ");
 942         wattron(pref_panel_window, A_BOLD);
 943         mvwprintw(pref_panel_window, size + 1, 1,
 944                         " 's' : sort, space : toggle");
 945         wattroff(pref_panel_window, A_BOLD);
 946
 947         if (*line_selected > (size - 1))
 948                 *line_selected = size - 1;
 949         if (toggle_sort == 1) {
 950                 if (fileview[*line_selected].sort == 1)
 951                         fileview[*line_selected].reverse = 1;
 952                 for (i = 0; i < size; i++)
 953                         fileview[i].sort = 0;
 954                 fileview[*line_selected].sort = 1;
 955                 update_current_view();
 956         }
 957
 958         for (i = 0; i < size; i++) {
 959                 if (i == *line_selected) {
 960                         wattron(pref_panel_window, COLOR_PAIR(5));
 961                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
 962                 }
 963                 if (fileview[i].sort == 1)
 964                         wattron(pref_panel_window, A_BOLD);
 965                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
 966                                 fileview[i].title);
 967                 wattroff(pref_panel_window, A_BOLD);
 968                 wattroff(pref_panel_window, COLOR_PAIR(5));
 969
 970         }
 971         update_panels();
 972         doupdate();
 973 }
 974
 975 void update_iostream_pref(int *line_selected, int toggle_view, int toggle_sort)
 976 {
 977         int i;
 978         int size;
 979
 980         if (!data)
 981                 return;
 982         if (pref_panel_window) {
 983                 del_panel(pref_panel);
 984                 delwin(pref_panel_window);
 985         }
 986         size = 3;
 987
 988         pref_panel_window = create_window(size + 2, 30, 10, 10);
 989         pref_panel = new_panel(pref_panel_window);
 990
 991         werase(pref_panel_window);
 992         box(pref_panel_window, 0 , 0);
 993         set_window_title(pref_panel_window, "IOTop Preferences ");
 994         wattron(pref_panel_window, A_BOLD);
 995         mvwprintw(pref_panel_window, size + 1, 1,
 996                         " 's' : sort, space : toggle");
 997         wattroff(pref_panel_window, A_BOLD);
 998
 999         if (*line_selected > (size - 1))
1000                 *line_selected = size - 1;
1001         if (toggle_sort == 1) {
1002                 if (iostreamtopview[*line_selected].sort == 1)
1003                         iostreamtopview[*line_selected].reverse = 1;
1004                 for (i = 0; i < size; i++)
1005                         iostreamtopview[i].sort = 0;
1006                 iostreamtopview[*line_selected].sort = 1;
1007                 update_current_view();
1008         }
1009
1010         for (i = 0; i < size; i++) {
1011                 if (i == *line_selected) {
1012                         wattron(pref_panel_window, COLOR_PAIR(5));
1013                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1014                 }
1015                 if (iostreamtopview[i].sort == 1)
1016                         wattron(pref_panel_window, A_BOLD);
1017                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
1018                                 iostreamtopview[i].title);
1019                 wattroff(pref_panel_window, A_BOLD);
1020                 wattroff(pref_panel_window, COLOR_PAIR(5));
1021
1022         }
1023         update_panels();
1024         doupdate();
1025 }
1026
1027 void update_cpu_pref(int *line_selected, int toggle_view, int toggle_sort)
1028 {
1029         int i;
1030         int size;
1031
1032         if (!data)
1033                 return;
1034         if (pref_panel_window) {
1035                 del_panel(pref_panel);
1036                 delwin(pref_panel_window);
1037         }
1038         size = 4;
1039
1040         pref_panel_window = create_window(size + 2, 30, 10, 10);
1041         pref_panel = new_panel(pref_panel_window);
1042
1043         werase(pref_panel_window);
1044         box(pref_panel_window, 0 , 0);
1045         set_window_title(pref_panel_window, "CPUTop Preferences ");
1046         wattron(pref_panel_window, A_BOLD);
1047         mvwprintw(pref_panel_window, size + 1, 1,
1048                         " 's' : sort, space : toggle");
1049         wattroff(pref_panel_window, A_BOLD);
1050
1051         if (*line_selected > (size - 1))
1052                 *line_selected = size - 1;
1053         if (toggle_sort == 1) {
1054                 /* special case, we don't support sorting by procname for now */
1055                 if (*line_selected != 3) {
1056                         if (cputopview[*line_selected].sort == 1)
1057                                 cputopview[*line_selected].reverse = 1;
1058                         for (i = 0; i < size; i++)
1059                                 cputopview[i].sort = 0;
1060                         cputopview[*line_selected].sort = 1;
1061                         update_current_view();
1062                 }
1063         }
1064
1065         for (i = 0; i < size; i++) {
1066                 if (i == *line_selected) {
1067                         wattron(pref_panel_window, COLOR_PAIR(5));
1068                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1069                 }
1070                 if (cputopview[i].sort == 1)
1071                         wattron(pref_panel_window, A_BOLD);
1072                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
1073                                 cputopview[i].title);
1074                 wattroff(pref_panel_window, A_BOLD);
1075                 wattroff(pref_panel_window, COLOR_PAIR(5));
1076
1077         }
1078         update_panels();
1079         doupdate();
1080 }
1081
1082 void update_perf_pref(int *line_selected, int toggle_view, int toggle_sort)
1083 {
1084         int i;
1085         struct perfcounter *perf;
1086         GList *perflist;
1087         int size;
1088
1089         if (!data)
1090                 return;
1091         if (pref_panel_window) {
1092                 del_panel(pref_panel);
1093                 delwin(pref_panel_window);
1094         }
1095         size = g_hash_table_size(global_perf_liszt);
1096
1097         pref_panel_window = create_window(size + 2, 30, 10, 10);
1098         pref_panel = new_panel(pref_panel_window);
1099
1100         werase(pref_panel_window);
1101         box(pref_panel_window, 0 , 0);
1102         set_window_title(pref_panel_window, "Perf Preferences ");
1103         wattron(pref_panel_window, A_BOLD);
1104         mvwprintw(pref_panel_window, g_hash_table_size(global_perf_liszt) + 1, 1,
1105                         " 's' : sort, space : toggle");
1106         wattroff(pref_panel_window, A_BOLD);
1107
1108         if (toggle_sort == 1) {
1109                 i = 0;
1110                 perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
1111                 while (perflist) {
1112                         perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
1113                         if (i != *line_selected)
1114                                 perf->sort = 0;
1115                         else
1116                                 perf->sort = 1;
1117                         i++;
1118                         perflist = g_list_next(perflist);
1119                 }
1120                 update_current_view();
1121         }
1122
1123         i = 0;
1124         perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
1125         while (perflist) {
1126                 perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
1127                 if (i == *line_selected && toggle_view == 1) {
1128                         perf->visible = perf->visible == 1 ? 0:1;
1129                         update_current_view();
1130                 }
1131                 if (i == *line_selected) {
1132                         wattron(pref_panel_window, COLOR_PAIR(5));
1133                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1134                 }
1135                 if (perf->sort == 1)
1136                         wattron(pref_panel_window, A_BOLD);
1137                 mvwprintw(pref_panel_window, i + 1, 1, "[%c] %s",
1138                                 perf->visible == 1 ? 'x' : ' ',
1139                                 (char *) perflist->data + 5);
1140                 wattroff(pref_panel_window, A_BOLD);
1141                 wattroff(pref_panel_window, COLOR_PAIR(5));
1142                 i++;
1143                 perflist = g_list_next(perflist);
1144         }
1145         update_panels();
1146         doupdate();
1147 }
1148
1149 int update_preference_panel(int *line_selected, int toggle_view, int toggle_sort)
1150 {
1151         int ret = 0;
1152
1153         switch(current_view) {
1154                 case perf:
1155                         update_perf_pref(line_selected, toggle_view, toggle_sort);
1156                         break;
1157                 case cpu:
1158                         update_cpu_pref(line_selected, toggle_view, toggle_sort);
1159                         break;
1160                 case iostream:
1161                         update_iostream_pref(line_selected, toggle_view, toggle_sort);
1162                         break;
1163                 case process_details:
1164                         update_process_detail_pref(line_selected, toggle_view, toggle_sort);
1165                         break;
1166                 default:
1167                         ret = -1;
1168                         break;
1169         }
1170
1171         return ret;
1172 }
1173
1174 void toggle_pref_panel(void)
1175 {
1176         int ret;
1177
1178         if (pref_panel_visible) {
1179                 hide_panel(pref_panel);
1180                 pref_panel_visible = 0;
1181         } else {
1182                 ret = update_preference_panel(&pref_line_selected, 0, 0);
1183                 if (ret < 0)
1184                         return;
1185                 show_panel(pref_panel);
1186                 pref_panel_visible = 1;
1187         }
1188         update_panels();
1189         doupdate();
1190 }
1191
1192 void display(unsigned int index)
1193 {
1194         last_display_index = index;
1195         currently_displayed_index = index;
1196         data = g_ptr_array_index(copies, index);
1197         if (!data)
1198                 return;
1199         max_elements = data->process_table->len;
1200         update_current_view();
1201         update_footer();
1202         update_panels();
1203         doupdate();
1204 }
1205
1206 void pause_display()
1207 {
1208         toggle_pause = 1;
1209         print_log("Pause");
1210         sem_wait(&pause_sem);
1211 }
1212
1213 void resume_display()
1214 {
1215         toggle_pause = -1;
1216         print_log("Resume");
1217         sem_post(&pause_sem);
1218 }
1219
1220 void *handle_keyboard(void *p)
1221 {
1222         int ch;
1223         while((ch = getch())) {
1224                 switch(ch) {
1225                 /* Move the cursor and scroll */
1226                 case 'j':
1227                 case KEY_DOWN:
1228                         if (pref_panel_visible) {
1229                                 pref_line_selected++;
1230                                 update_preference_panel(&pref_line_selected, 0, 0);
1231                         } else {
1232                                 if (selected_line < (max_center_lines - 1) &&
1233                                                 selected_line < max_elements - 1) {
1234                                         selected_line++;
1235                                         selected_in_list++;
1236                                 } else if (selected_in_list < (max_elements - 1)
1237                                                 && (list_offset < (max_elements - max_center_lines))) {
1238                                         selected_in_list++;
1239                                         list_offset++;
1240                                 }
1241                                 update_current_view();
1242                         }
1243                         break;
1244                 case KEY_NPAGE:
1245                         break;
1246                 case 'k':
1247                 case KEY_UP:
1248                         if (pref_panel_visible) {
1249                                 if (pref_line_selected > 0)
1250                                         pref_line_selected--;
1251                                 update_preference_panel(&pref_line_selected, 0, 0);
1252                         } else {
1253                                 if (selected_line > 0) {
1254                                         selected_line--;
1255                                         selected_in_list--;
1256                                 } else if (selected_in_list > 0 && list_offset > 0) {
1257                                         selected_in_list--;
1258                                         list_offset--;
1259                                 }
1260                                 update_current_view();
1261                         }
1262                         break;
1263                 case KEY_PPAGE:
1264                         break;
1265
1266                 /* Navigate the history with arrows */
1267                 case KEY_LEFT:
1268                         if (currently_displayed_index > 0) {
1269                                 currently_displayed_index--;
1270                                 print_log("Going back in time");
1271                         } else {
1272                                 print_log("Cannot rewind, last data is already displayed");
1273                         }
1274                         data = g_ptr_array_index(copies, currently_displayed_index);
1275                         max_elements = data->process_table->len;
1276
1277                         /* we force to pause the display when moving in time */
1278                         if (toggle_pause < 0)
1279                                 pause_display();
1280
1281                         update_current_view();
1282                         update_footer();
1283                         break;
1284                 case KEY_RIGHT:
1285                         if (currently_displayed_index < last_display_index) {
1286                                 currently_displayed_index++;
1287                                 print_log("Going forward in time");
1288                                 data = g_ptr_array_index(copies, currently_displayed_index);
1289                                 max_elements = data->process_table->len;
1290                                 update_current_view();
1291                                 update_footer();
1292                         } else {
1293                                 print_log("Manually moving forward");
1294                                 sem_post(&timer);
1295                                 if (toggle_pause > 0) {
1296                                         sem_post(&pause_sem);
1297                                         update_current_view();
1298                                         sem_wait(&pause_sem);
1299                                 }
1300                         }
1301
1302                         break;
1303                 case ' ':
1304                         if (pref_panel_visible) {
1305                                 update_preference_panel(&pref_line_selected, 1, 0);
1306                         } else {
1307                                 update_selected_processes();
1308                                 update_current_view();
1309                         }
1310                         break;
1311                 case 's':
1312                         if (pref_panel_visible)
1313                                 update_preference_panel(&pref_line_selected, 0, 1);
1314                         break;
1315
1316                 case 13: /* FIXME : KEY_ENTER ?? */
1317                         if (pref_panel_visible)
1318                                 break;
1319                         if (current_view != process_details) {
1320                                 previous_view = current_view;
1321                                 current_view = process_details;
1322                         } else {
1323                                 current_view = previous_view;
1324                                 previous_view = process_details;
1325                         }
1326                         update_current_view();
1327                         break;
1328
1329                 case KEY_F(1):
1330                         if (pref_panel_visible)
1331                                 toggle_pref_panel();
1332                         current_view = cpu;
1333                         selected_line = 0;
1334                         update_current_view();
1335                         break;
1336                 case KEY_F(2):
1337                         if (pref_panel_visible)
1338                                 toggle_pref_panel();
1339                         current_view = cpu;
1340                         selected_line = 0;
1341                         update_current_view();
1342                         break;
1343                 case KEY_F(3):
1344                         if (pref_panel_visible)
1345                                 toggle_pref_panel();
1346                         current_view = perf;
1347                         selected_line = 0;
1348                         update_current_view();
1349                         break;
1350                 case KEY_F(4):
1351                         if (pref_panel_visible)
1352                                 toggle_pref_panel();
1353                         current_view = iostream;
1354                         selected_line = 0;
1355                         update_current_view();
1356                         break;
1357                 case KEY_F(10):
1358                 case 'q':
1359                         reset_ncurses();
1360                         break;
1361                 case 't':
1362                         toggle_threads *= -1;
1363                         update_current_view();
1364                         break;
1365                 case 'p':
1366                         if (toggle_pause < 0) {
1367                                 pause_display();
1368                         } else {
1369                                 resume_display();
1370                         }
1371                         break;
1372                 case 'r':
1373                         toggle_pref_panel();
1374                         break;
1375                 /* ESCAPE, but slow to process, don't know why */
1376                 case 27:
1377                         if (pref_panel_visible)
1378                                 toggle_pref_panel();
1379                         else if (current_view == process_details) {
1380                                 current_view = previous_view;
1381                                 previous_view = process_details;
1382                         }
1383                         update_current_view();
1384                         break;
1385                 default:
1386                         if (data)
1387                                 update_current_view();
1388                         break;
1389                 }
1390                 update_footer();
1391         }
1392         return NULL;
1393 }
1394
1395 void init_view_headers()
1396 {
1397         cputopview[0].title = strdup("CPU(%)");
1398         cputopview[0].sort = 1;
1399         cputopview[1].title = strdup("TGID");
1400         cputopview[2].title = strdup("PID");
1401         cputopview[3].title = strdup("NAME");
1402
1403         iostreamtopview[0].title = strdup("R (B/sec)");
1404         iostreamtopview[1].title = strdup("W (B/sec)");
1405         iostreamtopview[2].title = strdup("Total (B)");
1406         iostreamtopview[2].sort = 1;
1407
1408         fileview[0].title = strdup("FD");
1409         fileview[1].title = strdup("READ");
1410         fileview[1].sort = 1;
1411         fileview[2].title = strdup("WRITE");
1412 }
1413
1414 void init_ncurses()
1415 {
1416         selected_processes = g_ptr_array_new();
1417         sem_init(&update_display_sem, 0, 1);
1418         init_view_headers();
1419         init_screen();
1420
1421         header = create_window(5, COLS - 1, 0, 0);
1422         center = create_window(LINES - 5 - 7, COLS - 1, 5, 0);
1423         status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
1424         footer = create_window(1, COLS - 1, LINES - 1, 0);
1425
1426         print_log("Starting display");
1427
1428         main_panel = new_panel(center);
1429
1430         current_view = cpu;
1431
1432         basic_header();
1433         update_footer();
1434
1435         pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
1436 }