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\t", key);
 637         wattroff(center, A_BOLD);
 638 }
 639
 640 void update_process_details()
 641 {
 642         unsigned long elapsed;
 643         double maxcputime;
 644         struct processtop *tmp;
 645         struct files *file_tmp;
 646         int i, j = 0;
 647         char unit[4];
 648         char filename_buf[COLS];
 649         GPtrArray *newfilearray = g_ptr_array_new();
 650
 651         set_window_title(center, "Process details");
 652
 653
 654         tmp = find_process_tid(data,
 655                         selected_process->tid,
 656                         selected_process->comm);
 657         elapsed = data->end - data->start;
 658         maxcputime = elapsed * data->cpu_table->len / 100.0;
 659
 660         print_key_title("Name", 1);
 661         wprintw(center, "%s", selected_process->comm);
 662         print_key_title("TID", 2);
 663         wprintw(center, "%d", selected_process->tid);
 664         if (!tmp) {
 665                 print_key_title("Does not exit at this time", 3);
 666                 return;
 667         }
 668
 669         print_key_title("PID", 3);
 670         wprintw(center, "%d", tmp->pid);
 671         print_key_title("PPID", 4);
 672         wprintw(center, "%d", tmp->ppid);
 673         print_key_title("CPU", 5);
 674         wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
 675
 676         print_key_title("READ B/s", 6);
 677         scale_unit(tmp->fileread, unit);
 678         wprintw(center, "%s", unit);
 679
 680         print_key_title("WRITE B/s", 7);
 681         scale_unit(tmp->filewrite, unit);
 682         wprintw(center, "%s", unit);
 683
 684         wattron(center, A_BOLD);
 685         mvwprintw(center, 8, 1, "FD");
 686         mvwprintw(center, 8, 10, "READ");
 687         mvwprintw(center, 8, 17, "WRITE");
 688         mvwprintw(center, 8, 24, "FILENAME");
 689         wattroff(center, A_BOLD);
 690
 691         /*
 692          * since the process_files_table array could contain NULL file structures,
 693          * and that the positions inside the array is important (it is the FD), we
 694          * need to create a temporary array that we can sort.
 695          */
 696         for (i = 0; i < tmp->process_files_table->len; i++) {
 697                 file_tmp = g_ptr_array_index(tmp->process_files_table, i);
 698                 if (file_tmp)
 699                         g_ptr_array_add(newfilearray, file_tmp);
 700         }
 701
 702         if (fileview[0].sort == 1)
 703                 g_ptr_array_sort(newfilearray, sort_by_file_fd_desc);
 704         else if (fileview[1].sort == 1)
 705                 g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
 706         else if (fileview[2].sort == 1)
 707                 g_ptr_array_sort(newfilearray, sort_by_file_write_desc);
 708         else
 709                 g_ptr_array_sort(newfilearray, sort_by_file_read_desc);
 710
 711         for (i = selected_line; i < newfilearray->len &&
 712                         i < (selected_line + max_center_lines - 7); i++) {
 713                 file_tmp = g_ptr_array_index(newfilearray, i);
 714                 if (!file_tmp)
 715                         continue;
 716                 mvwprintw(center, 9 + j, 1, "%d", file_tmp->fd);
 717                 scale_unit(file_tmp->read, unit);
 718                 mvwprintw(center, 9 + j, 10, "%s", unit);
 719                 scale_unit(file_tmp->write, unit);
 720                 mvwprintw(center, 9 + j, 17, "%s", unit);
 721                 snprintf(filename_buf, COLS - 25, "%s", file_tmp->name);
 722                 mvwprintw(center, 9 + j, 24, "%s", filename_buf);
 723                 j++;
 724         }
 725         g_ptr_array_free(newfilearray, TRUE);
 726 }
 727
 728 void update_perf()
 729 {
 730         int i;
 731         int nblinedisplayed = 0;
 732         int current_line = 0;
 733         struct processtop *tmp;
 734         int header_offset = 2;
 735         int perf_row = 40;
 736         struct perfcounter *perfn1, *perfn2;
 737         char *perf_key = NULL;
 738         int value;
 739         GHashTableIter iter;
 740         gpointer key;
 741
 742         set_window_title(center, "Perf Top");
 743         wattron(center, A_BOLD);
 744         mvwprintw(center, 1, 1, "PID");
 745         mvwprintw(center, 1, 11, "TID");
 746         mvwprintw(center, 1, 22, "NAME");
 747
 748         perf_row = 40;
 749         g_hash_table_iter_init(&iter, global_perf_liszt);
 750         while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 751                 if (perfn1->visible) {
 752                         /* + 5 to strip the "perf_" prefix */
 753                         mvwprintw(center, 1, perf_row, "%s",
 754                                         (char *) key + 5);
 755                         perf_row += 20;
 756                 }
 757                 if (perfn1->sort) {
 758                         perf_key = (char *) key;
 759                 }
 760         }
 761
 762         wattroff(center, A_BOLD);
 763
 764         g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
 765
 766         for (i = 0; i < data->process_table->len &&
 767                         nblinedisplayed < max_center_lines; i++) {
 768                 tmp = g_ptr_array_index(data->process_table, i);
 769
 770                 if (process_selected(tmp)) {
 771                         wattron(center, COLOR_PAIR(6));
 772                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 773                 }
 774                 if (current_line == selected_line) {
 775                         selected_process = tmp;
 776                         wattron(center, COLOR_PAIR(5));
 777                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 778                 }
 779
 780                 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
 781                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 782                 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 783
 784                 g_hash_table_iter_init(&iter, global_perf_liszt);
 785
 786                 perf_row = 40;
 787                 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
 788                         if (perfn1->visible) {
 789                                 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
 790                                 if (perfn2)
 791                                         value = perfn2->count;
 792                                 else
 793                                         value = 0;
 794                                 mvwprintw(center, current_line + header_offset,
 795                                                 perf_row, "%d", value);
 796                                 perf_row += 20;
 797                         }
 798                 }
 799
 800                 wattroff(center, COLOR_PAIR(6));
 801                 wattroff(center, COLOR_PAIR(5));
 802                 nblinedisplayed++;
 803                 current_line++;
 804         }
 805 }
 806
 807 void update_iostream()
 808 {
 809         int i;
 810         int header_offset = 2;
 811         struct processtop *tmp;
 812         int nblinedisplayed = 0;
 813         int current_line = 0;
 814         int total = 0;
 815         char unit[4];
 816
 817         set_window_title(center, "IO Top");
 818         wattron(center, A_BOLD);
 819         mvwprintw(center, 1, 1, "PID");
 820         mvwprintw(center, 1, 11, "TID");
 821         mvwprintw(center, 1, 22, "NAME");
 822         mvwprintw(center, 1, 40, "R (B/sec)");
 823         mvwprintw(center, 1, 52, "W (B/sec)");
 824         mvwprintw(center, 1, 64, "Total");
 825         wattroff(center, A_BOLD);
 826
 827         if (iostreamtopview[0].sort == 1)
 828                 g_ptr_array_sort(data->process_table, sort_by_process_read_desc);
 829         else if (iostreamtopview[1].sort == 1)
 830                 g_ptr_array_sort(data->process_table, sort_by_process_write_desc);
 831         else if (iostreamtopview[2].sort == 1)
 832                 g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 833         else
 834                 g_ptr_array_sort(data->process_table, sort_by_process_total_desc);
 835
 836         for (i = list_offset; i < data->process_table->len &&
 837                         nblinedisplayed < max_center_lines; i++) {
 838                 tmp = g_ptr_array_index(data->process_table, i);
 839
 840                 if (process_selected(tmp)) {
 841                         wattron(center, COLOR_PAIR(6));
 842                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 843                 }
 844                 if (current_line == selected_line) {
 845                         selected_process = tmp;
 846                         wattron(center, COLOR_PAIR(5));
 847                         mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
 848                 }
 849                 /* TGID */
 850                 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
 851                 /* PID */
 852                 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
 853                 /* NAME */
 854                 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
 855
 856                 /* READ (bytes/sec) */
 857                 scale_unit(tmp->fileread, unit);
 858                 mvwprintw(center, current_line + header_offset, 40, "%s", unit);
 859
 860                 /* WRITE (bytes/sec) */
 861                 scale_unit(tmp->filewrite, unit);
 862                 mvwprintw(center, current_line + header_offset, 52, "%s", unit);
 863
 864                 /* TOTAL STREAM */
 865                 total = tmp->totalfileread + tmp->totalfilewrite;
 866
 867                 scale_unit(total, unit);
 868                 mvwprintw(center, current_line + header_offset, 64, "%s", unit);
 869
 870                 wattroff(center, COLOR_PAIR(6));
 871                 wattroff(center, COLOR_PAIR(5));
 872                 nblinedisplayed++;
 873                 current_line++;
 874         }
 875 }
 876
 877 void update_current_view()
 878 {
 879         sem_wait(&update_display_sem);
 880         if (!data)
 881                 return;
 882         update_header();
 883
 884         werase(center);
 885         box(center, 0, 0);
 886         switch (current_view) {
 887         case cpu:
 888                 update_cputop_display();
 889                 break;
 890         case perf:
 891                 update_perf();
 892                 break;
 893         case process_details:
 894                 update_process_details();
 895                 break;
 896         case iostream:
 897                 update_iostream();
 898                 break;
 899         case tree:
 900                 update_cputop_display();
 901                 break;
 902         default:
 903                 break;
 904         }
 905         update_panels();
 906         doupdate();
 907         sem_post(&update_display_sem);
 908 }
 909
 910 void update_process_detail_pref(int *line_selected, int toggle_view, int toggle_sort)
 911 {
 912         int i;
 913         int size;
 914
 915         if (!data)
 916                 return;
 917         if (pref_panel_window) {
 918                 del_panel(pref_panel);
 919                 delwin(pref_panel_window);
 920         }
 921         size = 3;
 922
 923         pref_panel_window = create_window(size + 2, 30, 10, 10);
 924         pref_panel = new_panel(pref_panel_window);
 925
 926         werase(pref_panel_window);
 927         box(pref_panel_window, 0 , 0);
 928         set_window_title(pref_panel_window, "Process Detail Preferences ");
 929         wattron(pref_panel_window, A_BOLD);
 930         mvwprintw(pref_panel_window, size + 1, 1,
 931                         " 's' : sort, space : toggle");
 932         wattroff(pref_panel_window, A_BOLD);
 933
 934         if (*line_selected > (size - 1))
 935                 *line_selected = size - 1;
 936         if (toggle_sort == 1) {
 937                 if (fileview[*line_selected].sort == 1)
 938                         fileview[*line_selected].reverse = 1;
 939                 for (i = 0; i < size; i++)
 940                         fileview[i].sort = 0;
 941                 fileview[*line_selected].sort = 1;
 942                 update_current_view();
 943         }
 944
 945         for (i = 0; i < size; i++) {
 946                 if (i == *line_selected) {
 947                         wattron(pref_panel_window, COLOR_PAIR(5));
 948                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
 949                 }
 950                 if (fileview[i].sort == 1)
 951                         wattron(pref_panel_window, A_BOLD);
 952                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
 953                                 fileview[i].title);
 954                 wattroff(pref_panel_window, A_BOLD);
 955                 wattroff(pref_panel_window, COLOR_PAIR(5));
 956
 957         }
 958         update_panels();
 959         doupdate();
 960 }
 961
 962 void update_iostream_pref(int *line_selected, int toggle_view, int toggle_sort)
 963 {
 964         int i;
 965         int size;
 966
 967         if (!data)
 968                 return;
 969         if (pref_panel_window) {
 970                 del_panel(pref_panel);
 971                 delwin(pref_panel_window);
 972         }
 973         size = 3;
 974
 975         pref_panel_window = create_window(size + 2, 30, 10, 10);
 976         pref_panel = new_panel(pref_panel_window);
 977
 978         werase(pref_panel_window);
 979         box(pref_panel_window, 0 , 0);
 980         set_window_title(pref_panel_window, "IOTop Preferences ");
 981         wattron(pref_panel_window, A_BOLD);
 982         mvwprintw(pref_panel_window, size + 1, 1,
 983                         " 's' : sort, space : toggle");
 984         wattroff(pref_panel_window, A_BOLD);
 985
 986         if (*line_selected > (size - 1))
 987                 *line_selected = size - 1;
 988         if (toggle_sort == 1) {
 989                 if (iostreamtopview[*line_selected].sort == 1)
 990                         iostreamtopview[*line_selected].reverse = 1;
 991                 for (i = 0; i < size; i++)
 992                         iostreamtopview[i].sort = 0;
 993                 iostreamtopview[*line_selected].sort = 1;
 994                 update_current_view();
 995         }
 996
 997         for (i = 0; i < size; i++) {
 998                 if (i == *line_selected) {
 999                         wattron(pref_panel_window, COLOR_PAIR(5));
1000                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1001                 }
1002                 if (iostreamtopview[i].sort == 1)
1003                         wattron(pref_panel_window, A_BOLD);
1004                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
1005                                 iostreamtopview[i].title);
1006                 wattroff(pref_panel_window, A_BOLD);
1007                 wattroff(pref_panel_window, COLOR_PAIR(5));
1008
1009         }
1010         update_panels();
1011         doupdate();
1012 }
1013
1014 void update_cpu_pref(int *line_selected, int toggle_view, int toggle_sort)
1015 {
1016         int i;
1017         int size;
1018
1019         if (!data)
1020                 return;
1021         if (pref_panel_window) {
1022                 del_panel(pref_panel);
1023                 delwin(pref_panel_window);
1024         }
1025         size = 4;
1026
1027         pref_panel_window = create_window(size + 2, 30, 10, 10);
1028         pref_panel = new_panel(pref_panel_window);
1029
1030         werase(pref_panel_window);
1031         box(pref_panel_window, 0 , 0);
1032         set_window_title(pref_panel_window, "CPUTop Preferences ");
1033         wattron(pref_panel_window, A_BOLD);
1034         mvwprintw(pref_panel_window, size + 1, 1,
1035                         " 's' : sort, space : toggle");
1036         wattroff(pref_panel_window, A_BOLD);
1037
1038         if (*line_selected > (size - 1))
1039                 *line_selected = size - 1;
1040         if (toggle_sort == 1) {
1041                 /* special case, we don't support sorting by procname for now */
1042                 if (*line_selected != 3) {
1043                         if (cputopview[*line_selected].sort == 1)
1044                                 cputopview[*line_selected].reverse = 1;
1045                         for (i = 0; i < size; i++)
1046                                 cputopview[i].sort = 0;
1047                         cputopview[*line_selected].sort = 1;
1048                         update_current_view();
1049                 }
1050         }
1051
1052         for (i = 0; i < size; i++) {
1053                 if (i == *line_selected) {
1054                         wattron(pref_panel_window, COLOR_PAIR(5));
1055                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1056                 }
1057                 if (cputopview[i].sort == 1)
1058                         wattron(pref_panel_window, A_BOLD);
1059                 mvwprintw(pref_panel_window, i + 1, 1, "[-] %s",
1060                                 cputopview[i].title);
1061                 wattroff(pref_panel_window, A_BOLD);
1062                 wattroff(pref_panel_window, COLOR_PAIR(5));
1063
1064         }
1065         update_panels();
1066         doupdate();
1067 }
1068
1069 void update_perf_pref(int *line_selected, int toggle_view, int toggle_sort)
1070 {
1071         int i;
1072         struct perfcounter *perf;
1073         GList *perflist;
1074         int size;
1075
1076         if (!data)
1077                 return;
1078         if (pref_panel_window) {
1079                 del_panel(pref_panel);
1080                 delwin(pref_panel_window);
1081         }
1082         size = g_hash_table_size(global_perf_liszt);
1083
1084         pref_panel_window = create_window(size + 2, 30, 10, 10);
1085         pref_panel = new_panel(pref_panel_window);
1086
1087         werase(pref_panel_window);
1088         box(pref_panel_window, 0 , 0);
1089         set_window_title(pref_panel_window, "Perf Preferences ");
1090         wattron(pref_panel_window, A_BOLD);
1091         mvwprintw(pref_panel_window, g_hash_table_size(global_perf_liszt) + 1, 1,
1092                         " 's' : sort, space : toggle");
1093         wattroff(pref_panel_window, A_BOLD);
1094
1095         if (toggle_sort == 1) {
1096                 i = 0;
1097                 perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
1098                 while (perflist) {
1099                         perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
1100                         if (i != *line_selected)
1101                                 perf->sort = 0;
1102                         else
1103                                 perf->sort = 1;
1104                         i++;
1105                         perflist = g_list_next(perflist);
1106                 }
1107                 update_current_view();
1108         }
1109
1110         i = 0;
1111         perflist = g_list_first(g_hash_table_get_keys(global_perf_liszt));
1112         while (perflist) {
1113                 perf = g_hash_table_lookup(global_perf_liszt, perflist->data);
1114                 if (i == *line_selected && toggle_view == 1) {
1115                         perf->visible = perf->visible == 1 ? 0:1;
1116                         update_current_view();
1117                 }
1118                 if (i == *line_selected) {
1119                         wattron(pref_panel_window, COLOR_PAIR(5));
1120                         mvwhline(pref_panel_window, i + 1, 1, ' ', 30 - 2);
1121                 }
1122                 if (perf->sort == 1)
1123                         wattron(pref_panel_window, A_BOLD);
1124                 mvwprintw(pref_panel_window, i + 1, 1, "[%c] %s",
1125                                 perf->visible == 1 ? 'x' : ' ',
1126                                 (char *) perflist->data + 5);
1127                 wattroff(pref_panel_window, A_BOLD);
1128                 wattroff(pref_panel_window, COLOR_PAIR(5));
1129                 i++;
1130                 perflist = g_list_next(perflist);
1131         }
1132         update_panels();
1133         doupdate();
1134 }
1135
1136 int update_preference_panel(int *line_selected, int toggle_view, int toggle_sort)
1137 {
1138         int ret = 0;
1139
1140         switch(current_view) {
1141                 case perf:
1142                         update_perf_pref(line_selected, toggle_view, toggle_sort);
1143                         break;
1144                 case cpu:
1145                         update_cpu_pref(line_selected, toggle_view, toggle_sort);
1146                         break;
1147                 case iostream:
1148                         update_iostream_pref(line_selected, toggle_view, toggle_sort);
1149                         break;
1150                 case process_details:
1151                         update_process_detail_pref(line_selected, toggle_view, toggle_sort);
1152                         break;
1153                 default:
1154                         ret = -1;
1155                         break;
1156         }
1157
1158         return ret;
1159 }
1160
1161 void toggle_pref_panel(void)
1162 {
1163         int ret;
1164
1165         if (pref_panel_visible) {
1166                 hide_panel(pref_panel);
1167                 pref_panel_visible = 0;
1168         } else {
1169                 ret = update_preference_panel(&pref_line_selected, 0, 0);
1170                 if (ret < 0)
1171                         return;
1172                 show_panel(pref_panel);
1173                 pref_panel_visible = 1;
1174         }
1175         update_panels();
1176         doupdate();
1177 }
1178
1179 void display(unsigned int index)
1180 {
1181         last_display_index = index;
1182         currently_displayed_index = index;
1183         data = g_ptr_array_index(copies, index);
1184         if (!data)
1185                 return;
1186         max_elements = data->process_table->len;
1187         update_current_view();
1188         update_footer();
1189         update_panels();
1190         doupdate();
1191 }
1192
1193 void pause_display()
1194 {
1195         toggle_pause = 1;
1196         print_log("Pause");
1197         sem_wait(&pause_sem);
1198 }
1199
1200 void resume_display()
1201 {
1202         toggle_pause = -1;
1203         print_log("Resume");
1204         sem_post(&pause_sem);
1205 }
1206
1207 void *handle_keyboard(void *p)
1208 {
1209         int ch;
1210         while((ch = getch())) {
1211                 switch(ch) {
1212                 /* Move the cursor and scroll */
1213                 case 'j':
1214                 case KEY_DOWN:
1215                         if (pref_panel_visible) {
1216                                 pref_line_selected++;
1217                                 update_preference_panel(&pref_line_selected, 0, 0);
1218                         } else {
1219                                 if (selected_line < (max_center_lines - 1) &&
1220                                                 selected_line < max_elements - 1) {
1221                                         selected_line++;
1222                                         selected_in_list++;
1223                                 } else if (selected_in_list < (max_elements - 1)
1224                                                 && (list_offset < (max_elements - max_center_lines))) {
1225                                         selected_in_list++;
1226                                         list_offset++;
1227                                 }
1228                                 update_current_view();
1229                         }
1230                         break;
1231                 case KEY_NPAGE:
1232                         break;
1233                 case 'k':
1234                 case KEY_UP:
1235                         if (pref_panel_visible) {
1236                                 if (pref_line_selected > 0)
1237                                         pref_line_selected--;
1238                                 update_preference_panel(&pref_line_selected, 0, 0);
1239                         } else {
1240                                 if (selected_line > 0) {
1241                                         selected_line--;
1242                                         selected_in_list--;
1243                                 } else if (selected_in_list > 0 && list_offset > 0) {
1244                                         selected_in_list--;
1245                                         list_offset--;
1246                                 }
1247                                 update_current_view();
1248                         }
1249                         break;
1250                 case KEY_PPAGE:
1251                         break;
1252
1253                 /* Navigate the history with arrows */
1254                 case KEY_LEFT:
1255                         if (currently_displayed_index > 0) {
1256                                 currently_displayed_index--;
1257                                 print_log("Going back in time");
1258                         } else {
1259                                 print_log("Cannot rewind, last data is already displayed");
1260                         }
1261                         data = g_ptr_array_index(copies, currently_displayed_index);
1262                         max_elements = data->process_table->len;
1263
1264                         /* we force to pause the display when moving in time */
1265                         if (toggle_pause < 0)
1266                                 pause_display();
1267
1268                         update_current_view();
1269                         update_footer();
1270                         break;
1271                 case KEY_RIGHT:
1272                         if (currently_displayed_index < last_display_index) {
1273                                 currently_displayed_index++;
1274                                 print_log("Going forward in time");
1275                                 data = g_ptr_array_index(copies, currently_displayed_index);
1276                                 max_elements = data->process_table->len;
1277                                 update_current_view();
1278                                 update_footer();
1279                         } else {
1280                                 print_log("Manually moving forward");
1281                                 sem_post(&timer);
1282                                 if (toggle_pause > 0) {
1283                                         sem_post(&pause_sem);
1284                                         update_current_view();
1285                                         sem_wait(&pause_sem);
1286                                 }
1287                         }
1288
1289                         break;
1290                 case ' ':
1291                         if (pref_panel_visible) {
1292                                 update_preference_panel(&pref_line_selected, 1, 0);
1293                         } else {
1294                                 update_selected_processes();
1295                                 update_current_view();
1296                         }
1297                         break;
1298                 case 's':
1299                         if (pref_panel_visible)
1300                                 update_preference_panel(&pref_line_selected, 0, 1);
1301                         break;
1302
1303                 case 13: /* FIXME : KEY_ENTER ?? */
1304                         if (pref_panel_visible)
1305                                 break;
1306                         if (current_view != process_details) {
1307                                 previous_view = current_view;
1308                                 current_view = process_details;
1309                         } else {
1310                                 current_view = previous_view;
1311                                 previous_view = process_details;
1312                         }
1313                         update_current_view();
1314                         break;
1315
1316                 case KEY_F(1):
1317                         if (pref_panel_visible)
1318                                 toggle_pref_panel();
1319                         current_view = cpu;
1320                         selected_line = 0;
1321                         update_current_view();
1322                         break;
1323                 case KEY_F(2):
1324                         if (pref_panel_visible)
1325                                 toggle_pref_panel();
1326                         current_view = cpu;
1327                         selected_line = 0;
1328                         update_current_view();
1329                         break;
1330                 case KEY_F(3):
1331                         if (pref_panel_visible)
1332                                 toggle_pref_panel();
1333                         current_view = perf;
1334                         selected_line = 0;
1335                         update_current_view();
1336                         break;
1337                 case KEY_F(4):
1338                         if (pref_panel_visible)
1339                                 toggle_pref_panel();
1340                         current_view = iostream;
1341                         selected_line = 0;
1342                         update_current_view();
1343                         break;
1344                 case KEY_F(10):
1345                 case 'q':
1346                         reset_ncurses();
1347                         break;
1348                 case 't':
1349                         toggle_threads *= -1;
1350                         update_current_view();
1351                         break;
1352                 case 'p':
1353                         if (toggle_pause < 0) {
1354                                 pause_display();
1355                         } else {
1356                                 resume_display();
1357                         }
1358                         break;
1359                 case 'r':
1360                         toggle_pref_panel();
1361                         break;
1362                 /* ESCAPE, but slow to process, don't know why */
1363                 case 27:
1364                         if (pref_panel_visible)
1365                                 toggle_pref_panel();
1366                         else if (current_view == process_details) {
1367                                 current_view = previous_view;
1368                                 previous_view = process_details;
1369                         }
1370                         update_current_view();
1371                         break;
1372                 default:
1373                         if (data)
1374                                 update_current_view();
1375                         break;
1376                 }
1377                 update_footer();
1378         }
1379         return NULL;
1380 }
1381
1382 void init_view_headers()
1383 {
1384         cputopview[0].title = strdup("CPU(%)");
1385         cputopview[0].sort = 1;
1386         cputopview[1].title = strdup("TGID");
1387         cputopview[2].title = strdup("PID");
1388         cputopview[3].title = strdup("NAME");
1389
1390         iostreamtopview[0].title = strdup("R (B/sec)");
1391         iostreamtopview[1].title = strdup("W (B/sec)");
1392         iostreamtopview[2].title = strdup("Total (B)");
1393         iostreamtopview[2].sort = 1;
1394
1395         fileview[0].title = strdup("FD");
1396         fileview[1].title = strdup("READ");
1397         fileview[1].sort = 1;
1398         fileview[2].title = strdup("WRITE");
1399 }
1400
1401 void init_ncurses()
1402 {
1403         selected_processes = g_ptr_array_new();
1404         sem_init(&update_display_sem, 0, 1);
1405         init_view_headers();
1406         init_screen();
1407
1408         header = create_window(5, COLS - 1, 0, 0);
1409         center = create_window(LINES - 5 - 7, COLS - 1, 5, 0);
1410         status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
1411         footer = create_window(1, COLS - 1, LINES - 1, 0);
1412
1413         print_log("Starting display");
1414
1415         main_panel = new_panel(center);
1416
1417         current_view = cpu;
1418
1419         basic_header();
1420         update_footer();
1421
1422         pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
1423 }