gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2014 Free Software Foundation, Inc.
   4
   5    Contributed by Hewlett-Packard Company.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include "defs.h"
  23 #include "symtab.h"
  24 #include "tui/tui.h"
  25 #include "tui/tui-data.h"
  26 #include "tui/tui-wingeneral.h"
  27
  28 #include <string.h>
  29 #include "gdb_curses.h"
  30
  31 /****************************
  32 ** GLOBAL DECLARATIONS
  33 ****************************/
  34 struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
  35
  36 /***************************
  37 ** Private data
  38 ****************************/
  39 static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
  40 static int term_height, term_width;
  41 static struct tui_gen_win_info _locator;
  42 static struct tui_gen_win_info exec_info[2];
  43 static struct tui_win_info *src_win_list[2];
  44 static struct tui_list source_windows = {src_win_list, 0};
  45 static int default_tab_len = DEFAULT_TAB_LEN;
  46 static struct tui_win_info *win_with_focus = (struct tui_win_info *) NULL;
  47 static struct tui_layout_def layout_def = {
  48   SRC_WIN,                      /* DISPLAY_MODE */
  49   FALSE,                        /* SPLIT */
  50   TUI_UNDEFINED_REGS,           /* REGS_DISPLAY_TYPE */
  51   TUI_SFLOAT_REGS};             /* FLOAT_REGS_DISPLAY_TYPE */
  52
  53 static int win_resized = FALSE;
  54
  55
  56 /*********************************
  57 ** Static function forward decls
  58 **********************************/
  59 static void free_content (tui_win_content,
  60                           int,
  61                           enum tui_win_type);
  62 static void free_content_elements (tui_win_content,
  63                                    int,
  64                                    enum tui_win_type);
  65
  66
  67
  68 /*********************************
  69 ** PUBLIC FUNCTIONS
  70 **********************************/
  71
  72 int
  73 tui_win_is_source_type (enum tui_win_type win_type)
  74 {
  75   return (win_type == SRC_WIN || win_type == DISASSEM_WIN);
  76 }
  77
  78 int
  79 tui_win_is_auxillary (enum tui_win_type win_type)
  80 {
  81   return (win_type > MAX_MAJOR_WINDOWS);
  82 }
  83
  84 int
  85 tui_win_has_locator (struct tui_win_info *win_info)
  86 {
  87   return (win_info != NULL
  88           && win_info->detail.source_info.has_locator);
  89 }
  90
  91 void
  92 tui_set_win_highlight (struct tui_win_info *win_info,
  93                        int highlight)
  94 {
  95   if (win_info != NULL)
  96     win_info->is_highlighted = highlight;
  97 }
  98
  99 /******************************************
 100 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
 101 ******************************************/
 102
 103 /* Answer a whether the terminal window has been resized or not.  */
 104 int
 105 tui_win_resized (void)
 106 {
 107   return win_resized;
 108 }
 109
 110
 111 /* Set a whether the terminal window has been resized or not.  */
 112 void
 113 tui_set_win_resized_to (int resized)
 114 {
 115   win_resized = resized;
 116 }
 117
 118
 119 /* Answer a pointer to the current layout definition.  */
 120 struct tui_layout_def *
 121 tui_layout_def (void)
 122 {
 123   return &layout_def;
 124 }
 125
 126
 127 /* Answer the window with the logical focus.  */
 128 struct tui_win_info *
 129 tui_win_with_focus (void)
 130 {
 131   return win_with_focus;
 132 }
 133
 134
 135 /* Set the window that has the logical focus.  */
 136 void
 137 tui_set_win_with_focus (struct tui_win_info *win_info)
 138 {
 139   win_with_focus = win_info;
 140 }
 141
 142
 143 /* Answer the length in chars, of tabs.  */
 144 int
 145 tui_default_tab_len (void)
 146 {
 147   return default_tab_len;
 148 }
 149
 150
 151 /* Set the length in chars, of tabs.  */
 152 void
 153 tui_set_default_tab_len (int len)
 154 {
 155   default_tab_len = len;
 156 }
 157
 158
 159 /* Accessor for the current source window.  Usually there is only one
 160    source window (either source or disassembly), but both can be
 161    displayed at the same time.  */
 162 struct tui_list *
 163 tui_source_windows (void)
 164 {
 165   return &source_windows;
 166 }
 167
 168
 169 /* Clear the list of source windows.  Usually there is only one source
 170    window (either source or disassembly), but both can be displayed at
 171    the same time.  */
 172 void
 173 tui_clear_source_windows (void)
 174 {
 175   source_windows.list[0] = NULL;
 176   source_windows.list[1] = NULL;
 177   source_windows.count = 0;
 178 }
 179
 180
 181 /* Clear the pertinant detail in the source windows.  */
 182 void
 183 tui_clear_source_windows_detail (void)
 184 {
 185   int i;
 186
 187   for (i = 0; i < (tui_source_windows ())->count; i++)
 188     tui_clear_win_detail ((tui_source_windows ())->list[i]);
 189 }
 190
 191
 192 /* Add a window to the list of source windows.  Usually there is only
 193    one source window (either source or disassembly), but both can be
 194    displayed at the same time.  */
 195 void
 196 tui_add_to_source_windows (struct tui_win_info *win_info)
 197 {
 198   if (source_windows.count < 2)
 199     source_windows.list[source_windows.count++] = (void *) win_info;
 200 }
 201
 202
 203 /* Clear the pertinant detail in the windows.  */
 204 void
 205 tui_clear_win_detail (struct tui_win_info *win_info)
 206 {
 207   if (win_info != NULL)
 208     {
 209       switch (win_info->generic.type)
 210         {
 211         case SRC_WIN:
 212         case DISASSEM_WIN:
 213           win_info->detail.source_info.gdbarch = NULL;
 214           win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 215           win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 216           win_info->detail.source_info.horizontal_offset = 0;
 217           break;
 218         case CMD_WIN:
 219           win_info->detail.command_info.cur_line =
 220             win_info->detail.command_info.curch = 0;
 221           break;
 222         case DATA_WIN:
 223           win_info->detail.data_display_info.data_content =
 224             (tui_win_content) NULL;
 225           win_info->detail.data_display_info.data_content_count = 0;
 226           win_info->detail.data_display_info.regs_content =
 227             (tui_win_content) NULL;
 228           win_info->detail.data_display_info.regs_content_count = 0;
 229           win_info->detail.data_display_info.regs_display_type =
 230             TUI_UNDEFINED_REGS;
 231           win_info->detail.data_display_info.regs_column_count = 1;
 232           win_info->detail.data_display_info.display_regs = FALSE;
 233           break;
 234         default:
 235           break;
 236         }
 237     }
 238 }
 239
 240
 241 /* Accessor for the source execution info ptr.  */
 242 struct tui_gen_win_info *
 243 tui_source_exec_info_win_ptr (void)
 244 {
 245   return &exec_info[0];
 246 }
 247
 248
 249 /* Accessor for the disassem execution info ptr.  */
 250 struct tui_gen_win_info *
 251 tui_disassem_exec_info_win_ptr (void)
 252 {
 253   return &exec_info[1];
 254 }
 255
 256
 257 /* Accessor for the locator win info.  Answers a pointer to the static
 258    locator win info struct.  */
 259 struct tui_gen_win_info *
 260 tui_locator_win_info_ptr (void)
 261 {
 262   return &_locator;
 263 }
 264
 265
 266 /* Accessor for the term_height.  */
 267 int
 268 tui_term_height (void)
 269 {
 270   return term_height;
 271 }
 272
 273
 274 /* Mutator for the term height.  */
 275 void
 276 tui_set_term_height_to (int h)
 277 {
 278   term_height = h;
 279 }
 280
 281
 282 /* Accessor for the term_width.  */
 283 int
 284 tui_term_width (void)
 285 {
 286   return term_width;
 287 }
 288
 289
 290 /* Mutator for the term_width.  */
 291 void
 292 tui_set_term_width_to (int w)
 293 {
 294   term_width = w;
 295 }
 296
 297
 298 /* Accessor for the current layout.  */
 299 enum tui_layout_type
 300 tui_current_layout (void)
 301 {
 302   return current_layout;
 303 }
 304
 305
 306 /* Mutator for the current layout.  */
 307 void
 308 tui_set_current_layout_to (enum tui_layout_type new_layout)
 309 {
 310   current_layout = new_layout;
 311 }
 312
 313
 314 /*****************************
 315 ** OTHER PUBLIC FUNCTIONS
 316 *****************************/
 317
 318
 319 /* Answer the next window in the list, cycling back to the top if
 320    necessary.  */
 321 struct tui_win_info *
 322 tui_next_win (struct tui_win_info *cur_win)
 323 {
 324   enum tui_win_type type = cur_win->generic.type;
 325   struct tui_win_info *next_win = (struct tui_win_info *) NULL;
 326
 327   if (cur_win->generic.type == CMD_WIN)
 328     type = SRC_WIN;
 329   else
 330     type = cur_win->generic.type + 1;
 331   while (type != cur_win->generic.type && (next_win == NULL))
 332     {
 333       if (tui_win_list[type]
 334           && tui_win_list[type]->generic.is_visible)
 335         next_win = tui_win_list[type];
 336       else
 337         {
 338           if (type == CMD_WIN)
 339             type = SRC_WIN;
 340           else
 341             type++;
 342         }
 343     }
 344
 345   return next_win;
 346 }
 347
 348
 349 /* Answer the prev window in the list, cycling back to the bottom if
 350    necessary.  */
 351 struct tui_win_info *
 352 tui_prev_win (struct tui_win_info *cur_win)
 353 {
 354   enum tui_win_type type = cur_win->generic.type;
 355   struct tui_win_info *prev = (struct tui_win_info *) NULL;
 356
 357   if (cur_win->generic.type == SRC_WIN)
 358     type = CMD_WIN;
 359   else
 360     type = cur_win->generic.type - 1;
 361   while (type != cur_win->generic.type && (prev == NULL))
 362     {
 363       if (tui_win_list[type]
 364           && tui_win_list[type]->generic.is_visible)
 365         prev = tui_win_list[type];
 366       else
 367         {
 368           if (type == SRC_WIN)
 369             type = CMD_WIN;
 370           else
 371             type--;
 372         }
 373     }
 374
 375   return prev;
 376 }
 377
 378
 379 /* Answer the window represented by name.  */
 380 struct tui_win_info *
 381 tui_partial_win_by_name (char *name)
 382 {
 383   struct tui_win_info *win_info = (struct tui_win_info *) NULL;
 384
 385   if (name != (char *) NULL)
 386     {
 387       int i = 0;
 388
 389       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 390         {
 391           if (tui_win_list[i] != 0)
 392             {
 393               char *cur_name = tui_win_name (&tui_win_list[i]->generic);
 394
 395               if (strlen (name) <= strlen (cur_name)
 396                   && strncmp (name, cur_name, strlen (name)) == 0)
 397                 win_info = tui_win_list[i];
 398             }
 399           i++;
 400         }
 401     }
 402
 403   return win_info;
 404 }
 405
 406
 407 /* Answer the name of the window.  */
 408 char *
 409 tui_win_name (struct tui_gen_win_info *win_info)
 410 {
 411   char *name = (char *) NULL;
 412
 413   switch (win_info->type)
 414     {
 415     case SRC_WIN:
 416       name = SRC_NAME;
 417       break;
 418     case CMD_WIN:
 419       name = CMD_NAME;
 420       break;
 421     case DISASSEM_WIN:
 422       name = DISASSEM_NAME;
 423       break;
 424     case DATA_WIN:
 425       name = DATA_NAME;
 426       break;
 427     default:
 428       name = "";
 429       break;
 430     }
 431
 432   return name;
 433 }
 434
 435
 436 void
 437 tui_initialize_static_data (void)
 438 {
 439   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 440   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 441   tui_init_generic_part (tui_locator_win_info_ptr ());
 442 }
 443
 444
 445 struct tui_gen_win_info *
 446 tui_alloc_generic_win_info (void)
 447 {
 448   struct tui_gen_win_info *win;
 449
 450   if ((win = XNEW (struct tui_gen_win_info)) != NULL)
 451     tui_init_generic_part (win);
 452
 453   return win;
 454 }
 455
 456
 457 void
 458 tui_init_generic_part (struct tui_gen_win_info *win)
 459 {
 460   win->width =
 461     win->height =
 462     win->origin.x =
 463     win->origin.y =
 464     win->viewport_height =
 465     win->content_size =
 466     win->last_visible_line = 0;
 467   win->handle = (WINDOW *) NULL;
 468   win->content = NULL;
 469   win->content_in_use =
 470     win->is_visible = FALSE;
 471   win->title = 0;
 472 }
 473
 474
 475 /* init_content_element().
 476  */
 477 static void
 478 init_content_element (struct tui_win_element *element,
 479                       enum tui_win_type type)
 480 {
 481   element->highlight = FALSE;
 482   switch (type)
 483     {
 484     case SRC_WIN:
 485     case DISASSEM_WIN:
 486       element->which_element.source.line = (char *) NULL;
 487       element->which_element.source.line_or_addr.loa = LOA_LINE;
 488       element->which_element.source.line_or_addr.u.line_no = 0;
 489       element->which_element.source.is_exec_point = FALSE;
 490       element->which_element.source.has_break = FALSE;
 491       break;
 492     case DATA_WIN:
 493       tui_init_generic_part (&element->which_element.data_window);
 494       element->which_element.data_window.type = DATA_ITEM_WIN;
 495       ((struct tui_gen_win_info *)
 496        &element->which_element.data_window)->content =
 497         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 498       ((struct tui_gen_win_info *)
 499        & element->which_element.data_window)->content_size = 1;
 500       break;
 501     case CMD_WIN:
 502       element->which_element.command.line = (char *) NULL;
 503       break;
 504     case DATA_ITEM_WIN:
 505       element->which_element.data.name = (char *) NULL;
 506       element->which_element.data.type = TUI_REGISTER;
 507       element->which_element.data.item_no = UNDEFINED_ITEM;
 508       element->which_element.data.value = NULL;
 509       element->which_element.data.highlight = FALSE;
 510       element->which_element.data.content = (char*) NULL;
 511       break;
 512     case LOCATOR_WIN:
 513       element->which_element.locator.full_name[0] =
 514         element->which_element.locator.proc_name[0] = (char) 0;
 515       element->which_element.locator.line_no = 0;
 516       element->which_element.locator.addr = 0;
 517       break;
 518     case EXEC_INFO_WIN:
 519       memset(element->which_element.simple_string, ' ',
 520              sizeof(element->which_element.simple_string));
 521       break;
 522     default:
 523       break;
 524     }
 525 }
 526
 527 static void
 528 init_win_info (struct tui_win_info *win_info)
 529 {
 530   tui_init_generic_part (&win_info->generic);
 531   win_info->can_highlight =
 532     win_info->is_highlighted = FALSE;
 533   switch (win_info->generic.type)
 534     {
 535     case SRC_WIN:
 536     case DISASSEM_WIN:
 537       win_info->detail.source_info.execution_info
 538         = (struct tui_gen_win_info *) NULL;
 539       win_info->detail.source_info.has_locator = FALSE;
 540       win_info->detail.source_info.horizontal_offset = 0;
 541       win_info->detail.source_info.gdbarch = NULL;
 542       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 543       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 544       win_info->detail.source_info.fullname = NULL;
 545       break;
 546     case DATA_WIN:
 547       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 548       win_info->detail.data_display_info.data_content_count = 0;
 549       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 550       win_info->detail.data_display_info.regs_content_count = 0;
 551       win_info->detail.data_display_info.regs_display_type =
 552         TUI_UNDEFINED_REGS;
 553       win_info->detail.data_display_info.regs_column_count = 1;
 554       win_info->detail.data_display_info.display_regs = FALSE;
 555       win_info->detail.data_display_info.current_group = 0;
 556       break;
 557     case CMD_WIN:
 558       win_info->detail.command_info.cur_line = 0;
 559       win_info->detail.command_info.curch = 0;
 560       break;
 561     default:
 562       win_info->detail.opaque = NULL;
 563       break;
 564     }
 565 }
 566
 567
 568 struct tui_win_info *
 569 tui_alloc_win_info (enum tui_win_type type)
 570 {
 571   struct tui_win_info *win_info;
 572
 573   win_info = XNEW (struct tui_win_info);
 574   if (win_info != NULL)
 575     {
 576       win_info->generic.type = type;
 577       init_win_info (win_info);
 578     }
 579
 580   return win_info;
 581 }
 582
 583
 584 /* Allocates the content and elements in a block.  */
 585 tui_win_content
 586 tui_alloc_content (int num_elements, enum tui_win_type type)
 587 {
 588   tui_win_content content;
 589   char *element_block_ptr;
 590   int i;
 591
 592   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 593   if (content != NULL)
 594     {
 595       /*
 596        * All windows, except the data window, can allocate the
 597        * elements in a chunk.  The data window cannot because items
 598        * can be added/removed from the data display by the user at any
 599        * time.
 600        */
 601       if (type != DATA_WIN)
 602         {
 603           element_block_ptr =
 604             xmalloc (sizeof (struct tui_win_element) * num_elements);
 605           if (element_block_ptr != NULL)
 606             {
 607               for (i = 0; i < num_elements; i++)
 608                 {
 609                   content[i] = (struct tui_win_element *) element_block_ptr;
 610                   init_content_element (content[i], type);
 611                   element_block_ptr += sizeof (struct tui_win_element);
 612                 }
 613             }
 614           else
 615             {
 616               xfree (content);
 617               content = (tui_win_content) NULL;
 618             }
 619         }
 620     }
 621
 622   return content;
 623 }
 624
 625
 626 /* Adds the input number of elements to the windows's content.  If no
 627    content has been allocated yet, alloc_content() is called to do
 628    this.  The index of the first element added is returned, unless
 629    there is a memory allocation error, in which case, (-1) is
 630    returned.  */
 631 int
 632 tui_add_content_elements (struct tui_gen_win_info *win_info,
 633                           int num_elements)
 634 {
 635   struct tui_win_element *element_ptr;
 636   int i, index_start;
 637
 638   if (win_info->content == NULL)
 639     {
 640       win_info->content = (void **) tui_alloc_content (num_elements,
 641                                                        win_info->type);
 642       index_start = 0;
 643     }
 644   else
 645     index_start = win_info->content_size;
 646   if (win_info->content != NULL)
 647     {
 648       for (i = index_start; (i < num_elements + index_start); i++)
 649         {
 650           if ((element_ptr = XNEW (struct tui_win_element)) != NULL)
 651             {
 652               win_info->content[i] = (void *) element_ptr;
 653               init_content_element (element_ptr, win_info->type);
 654               win_info->content_size++;
 655             }
 656           else  /* Things must be really hosed now!  We ran out of
 657                    memory!?  */
 658             return (-1);
 659         }
 660     }
 661
 662   return index_start;
 663 }
 664
 665
 666 /* Delete all curses windows associated with win_info, leaving
 667    everything else intact.  */
 668 void
 669 tui_del_window (struct tui_win_info *win_info)
 670 {
 671   struct tui_gen_win_info *generic_win;
 672
 673   switch (win_info->generic.type)
 674     {
 675     case SRC_WIN:
 676     case DISASSEM_WIN:
 677       generic_win = tui_locator_win_info_ptr ();
 678       if (generic_win != (struct tui_gen_win_info *) NULL)
 679         {
 680           tui_delete_win (generic_win->handle);
 681           generic_win->handle = (WINDOW *) NULL;
 682           generic_win->is_visible = FALSE;
 683         }
 684       if (win_info->detail.source_info.fullname)
 685         {
 686           xfree (win_info->detail.source_info.fullname);
 687           win_info->detail.source_info.fullname = NULL;
 688         }
 689       generic_win = win_info->detail.source_info.execution_info;
 690       if (generic_win != (struct tui_gen_win_info *) NULL)
 691         {
 692           tui_delete_win (generic_win->handle);
 693           generic_win->handle = (WINDOW *) NULL;
 694           generic_win->is_visible = FALSE;
 695         }
 696       break;
 697     case DATA_WIN:
 698       if (win_info->generic.content != NULL)
 699         {
 700           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 701                                 win_info->detail.data_display_info.regs_content_count);
 702           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 703                                 win_info->detail.data_display_info.data_content_count);
 704         }
 705       break;
 706     default:
 707       break;
 708     }
 709   if (win_info->generic.handle != (WINDOW *) NULL)
 710     {
 711       tui_delete_win (win_info->generic.handle);
 712       win_info->generic.handle = (WINDOW *) NULL;
 713       win_info->generic.is_visible = FALSE;
 714     }
 715 }
 716
 717
 718 void
 719 tui_free_window (struct tui_win_info *win_info)
 720 {
 721   struct tui_gen_win_info *generic_win;
 722
 723   switch (win_info->generic.type)
 724     {
 725     case SRC_WIN:
 726     case DISASSEM_WIN:
 727       generic_win = tui_locator_win_info_ptr ();
 728       if (generic_win != (struct tui_gen_win_info *) NULL)
 729         {
 730           tui_delete_win (generic_win->handle);
 731           generic_win->handle = (WINDOW *) NULL;
 732         }
 733       tui_free_win_content (generic_win);
 734       if (win_info->detail.source_info.fullname)
 735         {
 736           xfree (win_info->detail.source_info.fullname);
 737           win_info->detail.source_info.fullname = NULL;
 738         }
 739       generic_win = win_info->detail.source_info.execution_info;
 740       if (generic_win != (struct tui_gen_win_info *) NULL)
 741         {
 742           tui_delete_win (generic_win->handle);
 743           generic_win->handle = (WINDOW *) NULL;
 744           tui_free_win_content (generic_win);
 745         }
 746       break;
 747     case DATA_WIN:
 748       if (win_info->generic.content != NULL)
 749         {
 750           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 751                                  win_info->detail.data_display_info.regs_content_count);
 752           win_info->detail.data_display_info.regs_content =
 753             (tui_win_content) NULL;
 754           win_info->detail.data_display_info.regs_content_count = 0;
 755           tui_free_data_content (win_info->detail.data_display_info.data_content,
 756                                  win_info->detail.data_display_info.data_content_count);
 757           win_info->detail.data_display_info.data_content =
 758             (tui_win_content) NULL;
 759           win_info->detail.data_display_info.data_content_count = 0;
 760           win_info->detail.data_display_info.regs_display_type =
 761             TUI_UNDEFINED_REGS;
 762           win_info->detail.data_display_info.regs_column_count = 1;
 763           win_info->detail.data_display_info.display_regs = FALSE;
 764           win_info->generic.content = NULL;
 765           win_info->generic.content_size = 0;
 766         }
 767       break;
 768     default:
 769       break;
 770     }
 771   if (win_info->generic.handle != (WINDOW *) NULL)
 772     {
 773       tui_delete_win (win_info->generic.handle);
 774       win_info->generic.handle = (WINDOW *) NULL;
 775       tui_free_win_content (&win_info->generic);
 776     }
 777   if (win_info->generic.title)
 778     xfree (win_info->generic.title);
 779   xfree (win_info);
 780 }
 781
 782
 783 void
 784 tui_free_all_source_wins_content (void)
 785 {
 786   int i;
 787
 788   for (i = 0; i < (tui_source_windows ())->count; i++)
 789     {
 790       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 791
 792       if (win_info != NULL)
 793         {
 794           tui_free_win_content (&(win_info->generic));
 795           tui_free_win_content (win_info->detail.source_info.execution_info);
 796         }
 797     }
 798 }
 799
 800
 801 void
 802 tui_free_win_content (struct tui_gen_win_info *win_info)
 803 {
 804   if (win_info->content != NULL)
 805     {
 806       free_content ((tui_win_content) win_info->content,
 807                    win_info->content_size,
 808                    win_info->type);
 809       win_info->content = NULL;
 810     }
 811   win_info->content_size = 0;
 812 }
 813
 814
 815 void
 816 tui_del_data_windows (tui_win_content content,
 817                       int content_size)
 818 {
 819   int i;
 820
 821   /* Remember that data window content elements are of type struct
 822      tui_gen_win_info *, each of which whose single element is a data
 823      element.  */
 824   for (i = 0; i < content_size; i++)
 825     {
 826       struct tui_gen_win_info *generic_win
 827         = &content[i]->which_element.data_window;
 828
 829       if (generic_win != (struct tui_gen_win_info *) NULL)
 830         {
 831           tui_delete_win (generic_win->handle);
 832           generic_win->handle = (WINDOW *) NULL;
 833           generic_win->is_visible = FALSE;
 834         }
 835     }
 836 }
 837
 838
 839 void
 840 tui_free_data_content (tui_win_content content,
 841                        int content_size)
 842 {
 843   int i;
 844
 845   /* Remember that data window content elements are of type struct
 846      tui_gen_win_info *, each of which whose single element is a data
 847      element.  */
 848   for (i = 0; i < content_size; i++)
 849     {
 850       struct tui_gen_win_info *generic_win
 851         = &content[i]->which_element.data_window;
 852
 853       if (generic_win != (struct tui_gen_win_info *) NULL)
 854         {
 855           tui_delete_win (generic_win->handle);
 856           generic_win->handle = (WINDOW *) NULL;
 857           tui_free_win_content (generic_win);
 858         }
 859     }
 860   free_content (content,
 861                 content_size,
 862                 DATA_WIN);
 863 }
 864
 865
 866 /**********************************
 867 ** LOCAL STATIC FUNCTIONS        **
 868 **********************************/
 869
 870
 871 static void
 872 free_content (tui_win_content content,
 873               int content_size,
 874               enum tui_win_type win_type)
 875 {
 876   if (content != (tui_win_content) NULL)
 877     {
 878       free_content_elements (content, content_size, win_type);
 879       xfree (content);
 880     }
 881 }
 882
 883
 884 /* free_content_elements().
 885  */
 886 static void
 887 free_content_elements (tui_win_content content,
 888                        int content_size,
 889                        enum tui_win_type type)
 890 {
 891   if (content != (tui_win_content) NULL)
 892     {
 893       int i;
 894
 895       if (type == SRC_WIN || type == DISASSEM_WIN)
 896         {
 897           /* Free whole source block.  */
 898           xfree (content[0]->which_element.source.line);
 899         }
 900       else
 901         {
 902           for (i = 0; i < content_size; i++)
 903             {
 904               struct tui_win_element *element;
 905
 906               element = content[i];
 907               if (element != (struct tui_win_element *) NULL)
 908                 {
 909                   switch (type)
 910                     {
 911                     case DATA_WIN:
 912                       xfree (element);
 913                       break;
 914                     case DATA_ITEM_WIN:
 915                       /* Note that data elements are not allocated in
 916                          a single block, but individually, as
 917                          needed.  */
 918                       if (element->which_element.data.type != TUI_REGISTER)
 919                         xfree ((void *)element->which_element.data.name);
 920                       xfree (element->which_element.data.value);
 921                       xfree (element->which_element.data.content);
 922                       xfree (element);
 923                       break;
 924                     case CMD_WIN:
 925                       xfree (element->which_element.command.line);
 926                       break;
 927                     default:
 928                       break;
 929                     }
 930                 }
 931             }
 932         }
 933       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 934         xfree (content[0]);     /* Free the element block.  */
 935     }
 936 }