gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
   4    Foundation, Inc.
   5
   6    Contributed by Hewlett-Packard Company.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330,
  23    Boston, MA 02111-1307, USA.  */
  24
  25 #include "defs.h"
  26 #include "symtab.h"
  27 #include "tui/tui.h"
  28 #include "tui/tui-data.h"
  29 #include "tui/tui-wingeneral.h"
  30
  31 #include "gdb_string.h"
  32 #include "gdb_curses.h"
  33
  34 /****************************
  35 ** GLOBAL DECLARATIONS
  36 ****************************/
  37 struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
  38
  39 /***************************
  40 ** Private data
  41 ****************************/
  42 static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
  43 static int term_height, term_width;
  44 static struct tui_gen_win_info _locator;
  45 static struct tui_gen_win_info exec_info[2];
  46 static struct tui_win_info * src_win_list[2];
  47 static struct tui_list source_windows = {(void **) src_win_list, 0};
  48 static int default_tab_len = DEFAULT_TAB_LEN;
  49 static struct tui_win_info * win_with_focus = (struct tui_win_info *) NULL;
  50 static struct tui_layout_def layout_def =
  51 {SRC_WIN,                       /* DISPLAY_MODE */
  52  FALSE,                         /* SPLIT */
  53  TUI_UNDEFINED_REGS,            /* REGS_DISPLAY_TYPE */
  54  TUI_SFLOAT_REGS};              /* FLOAT_REGS_DISPLAY_TYPE */
  55 static int win_resized = FALSE;
  56
  57
  58 /*********************************
  59 ** Static function forward decls
  60 **********************************/
  61 static void free_content (tui_win_content, int, enum tui_win_type);
  62 static void free_content_elements (tui_win_content, int, enum tui_win_type);
  63
  64
  65
  66 /*********************************
  67 ** PUBLIC FUNCTIONS
  68 **********************************/
  69
  70 int
  71 tui_win_is_source_type (enum tui_win_type win_type)
  72 {
  73   return (win_type == SRC_WIN || win_type == DISASSEM_WIN);
  74 }
  75
  76 int
  77 tui_win_is_auxillary (enum tui_win_type win_type)
  78 {
  79   return (win_type > MAX_MAJOR_WINDOWS);
  80 }
  81
  82 int
  83 tui_win_has_locator (struct tui_win_info *win_info)
  84 {
  85   return (win_info != NULL \
  86           && win_info->detail.source_info.has_locator);
  87 }
  88
  89 void
  90 tui_set_win_highlight (struct tui_win_info *win_info, int highlight)
  91 {
  92   if (win_info != NULL)
  93     win_info->is_highlighted = highlight;
  94 }
  95
  96 /******************************************
  97 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
  98 ******************************************/
  99
 100 /* Answer a whether the terminal window has been resized or not.   */
 101 int
 102 tui_win_resized (void)
 103 {
 104   return win_resized;
 105 }
 106
 107
 108 /* Set a whether the terminal window has been resized or not.   */
 109 void
 110 tui_set_win_resized_to (int resized)
 111 {
 112   win_resized = resized;
 113 }
 114
 115
 116 /* Answer a pointer to the current layout definition.   */
 117 struct tui_layout_def *
 118 tui_layout_def (void)
 119 {
 120   return &layout_def;
 121 }
 122
 123
 124 /* Answer the window with the logical focus.    */
 125 struct tui_win_info *
 126 tui_win_with_focus (void)
 127 {
 128   return win_with_focus;
 129 }
 130
 131
 132 /* Set the window that has the logical focus.   */
 133 void
 134 tui_set_win_with_focus (struct tui_win_info * win_info)
 135 {
 136   win_with_focus = win_info;
 137 }
 138
 139
 140 /* Answer the length in chars, of tabs.    */
 141 int
 142 tui_default_tab_len (void)
 143 {
 144   return default_tab_len;
 145 }
 146
 147
 148 /* Set the length in chars, of tabs.   */
 149 void
 150 tui_set_default_tab_len (int len)
 151 {
 152   default_tab_len = len;
 153 }
 154
 155
 156 /* Accessor for the current source window.  Usually there is only one
 157    source window (either source or disassembly), but both can be
 158    displayed at the same time.  */
 159 struct tui_list *
 160 tui_source_windows (void)
 161 {
 162   return &source_windows;
 163 }
 164
 165
 166 /* Clear the list of source windows.  Usually there is only one source
 167    window (either source or disassembly), but both can be displayed at
 168    the same time.  */
 169 void
 170 tui_clear_source_windows (void)
 171 {
 172   source_windows.list[0] = NULL;
 173   source_windows.list[1] = NULL;
 174   source_windows.count = 0;
 175 }
 176
 177
 178 /* Clear the pertinant detail in the source windows.   */
 179 void
 180 tui_clear_source_windows_detail (void)
 181 {
 182   int i;
 183
 184   for (i = 0; i < (tui_source_windows ())->count; i++)
 185     tui_clear_win_detail ((struct tui_win_info *) (tui_source_windows ())->list[i]);
 186 }
 187
 188
 189 /* Add a window to the list of source windows.  Usually there is only
 190    one source window (either source or disassembly), but both can be
 191    displayed at the same time.  */
 192 void
 193 tui_add_to_source_windows (struct tui_win_info * win_info)
 194 {
 195   if (source_windows.count < 2)
 196     source_windows.list[source_windows.count++] = (void *) win_info;
 197 }
 198
 199
 200 /* Clear the pertinant detail in the windows.   */
 201 void
 202 tui_clear_win_detail (struct tui_win_info * win_info)
 203 {
 204   if (win_info != NULL)
 205     {
 206       switch (win_info->generic.type)
 207         {
 208         case SRC_WIN:
 209         case DISASSEM_WIN:
 210           win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 211           win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 212           win_info->detail.source_info.horizontal_offset = 0;
 213           break;
 214         case CMD_WIN:
 215           win_info->detail.command_info.cur_line =
 216             win_info->detail.command_info.curch = 0;
 217           break;
 218         case DATA_WIN:
 219           win_info->detail.data_display_info.data_content =
 220             (tui_win_content) NULL;
 221           win_info->detail.data_display_info.data_content_count = 0;
 222           win_info->detail.data_display_info.regs_content =
 223             (tui_win_content) NULL;
 224           win_info->detail.data_display_info.regs_content_count = 0;
 225           win_info->detail.data_display_info.regs_display_type =
 226             TUI_UNDEFINED_REGS;
 227           win_info->detail.data_display_info.regs_column_count = 1;
 228           win_info->detail.data_display_info.display_regs = FALSE;
 229           break;
 230         default:
 231           break;
 232         }
 233     }
 234 }
 235
 236
 237 /* Accessor for the source execution info ptr.  */
 238 struct tui_gen_win_info *
 239 tui_source_exec_info_win_ptr (void)
 240 {
 241   return &exec_info[0];
 242 }
 243
 244
 245 /* Accessor for the disassem execution info ptr.  */
 246 struct tui_gen_win_info *
 247 tui_disassem_exec_info_win_ptr (void)
 248 {
 249   return &exec_info[1];
 250 }
 251
 252
 253 /* Accessor for the locator win info.  Answers a pointer to the static
 254    locator win info struct.  */
 255 struct tui_gen_win_info *
 256 tui_locator_win_info_ptr (void)
 257 {
 258   return &_locator;
 259 }
 260
 261
 262 /* Accessor for the term_height.  */
 263 int
 264 tui_term_height (void)
 265 {
 266   return term_height;
 267 }
 268
 269
 270 /* Mutator for the term height.   */
 271 void
 272 tui_set_term_height_to (int h)
 273 {
 274   term_height = h;
 275 }
 276
 277
 278 /* Accessor for the term_width.   */
 279 int
 280 tui_term_width (void)
 281 {
 282   return term_width;
 283 }
 284
 285
 286 /* Mutator for the term_width.  */
 287 void
 288 tui_set_term_width_to (int w)
 289 {
 290   term_width = w;
 291 }
 292
 293
 294 /* Accessor for the current layout.   */
 295 enum tui_layout_type
 296 tui_current_layout (void)
 297 {
 298   return current_layout;
 299 }
 300
 301
 302 /* Mutator for the current layout.  */
 303 void
 304 tui_set_current_layout_to (enum tui_layout_type new_layout)
 305 {
 306   current_layout = new_layout;
 307 }
 308
 309
 310 /* Set the origin of the window.  */
 311 void
 312 set_gen_win_origin (struct tui_gen_win_info * win_info, int x, int y)
 313 {
 314   win_info->origin.x = x;
 315   win_info->origin.y = y;
 316 }
 317
 318
 319 /*****************************
 320 ** OTHER PUBLIC FUNCTIONS
 321 *****************************/
 322
 323
 324 /* Answer the next window in the list, cycling back to the top if
 325    necessary.  */
 326 struct tui_win_info *
 327 tui_next_win (struct tui_win_info * cur_win)
 328 {
 329   enum tui_win_type type = cur_win->generic.type;
 330   struct tui_win_info * next_win = (struct tui_win_info *) NULL;
 331
 332   if (cur_win->generic.type == CMD_WIN)
 333     type = SRC_WIN;
 334   else
 335     type = cur_win->generic.type + 1;
 336   while (type != cur_win->generic.type && (next_win == NULL))
 337     {
 338       if (tui_win_list[type] && tui_win_list[type]->generic.is_visible)
 339         next_win = tui_win_list[type];
 340       else
 341         {
 342           if (type == CMD_WIN)
 343             type = SRC_WIN;
 344           else
 345             type++;
 346         }
 347     }
 348
 349   return next_win;
 350 }
 351
 352
 353 /* Answer the prev window in the list, cycling back to the bottom if
 354    necessary.  */
 355 struct tui_win_info *
 356 tui_prev_win (struct tui_win_info * cur_win)
 357 {
 358   enum tui_win_type type = cur_win->generic.type;
 359   struct tui_win_info * prev = (struct tui_win_info *) NULL;
 360
 361   if (cur_win->generic.type == SRC_WIN)
 362     type = CMD_WIN;
 363   else
 364     type = cur_win->generic.type - 1;
 365   while (type != cur_win->generic.type && (prev == NULL))
 366     {
 367       if (tui_win_list[type]->generic.is_visible)
 368         prev = tui_win_list[type];
 369       else
 370         {
 371           if (type == SRC_WIN)
 372             type = CMD_WIN;
 373           else
 374             type--;
 375         }
 376     }
 377
 378   return prev;
 379 }
 380
 381
 382 /* Answer the window represented by name.    */
 383 struct tui_win_info *
 384 tui_partial_win_by_name (char *name)
 385 {
 386   struct tui_win_info * win_info = (struct tui_win_info *) NULL;
 387
 388   if (name != (char *) NULL)
 389     {
 390       int i = 0;
 391
 392       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 393         {
 394           if (tui_win_list[i] != 0)
 395             {
 396               char *cur_name = tui_win_name (&tui_win_list[i]->generic);
 397               if (strlen (name) <= strlen (cur_name) &&
 398                   strncmp (name, cur_name, strlen (name)) == 0)
 399                 win_info = tui_win_list[i];
 400             }
 401           i++;
 402         }
 403     }
 404
 405   return win_info;
 406 }
 407
 408
 409 /* Answer the name of the window.  */
 410 char *
 411 tui_win_name (struct tui_gen_win_info * win_info)
 412 {
 413   char *name = (char *) NULL;
 414
 415   switch (win_info->type)
 416     {
 417     case SRC_WIN:
 418       name = SRC_NAME;
 419       break;
 420     case CMD_WIN:
 421       name = CMD_NAME;
 422       break;
 423     case DISASSEM_WIN:
 424       name = DISASSEM_NAME;
 425       break;
 426     case DATA_WIN:
 427       name = DATA_NAME;
 428       break;
 429     default:
 430       name = "";
 431       break;
 432     }
 433
 434   return name;
 435 }
 436
 437
 438 void
 439 tui_initialize_static_data (void)
 440 {
 441   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 442   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 443   tui_init_generic_part (tui_locator_win_info_ptr ());
 444 }
 445
 446
 447 struct tui_gen_win_info *
 448 tui_alloc_generic_win_info (void)
 449 {
 450   struct tui_gen_win_info * win;
 451
 452   if ((win = (struct tui_gen_win_info *) xmalloc (
 453                      sizeof (struct tui_gen_win_info *))) != (struct tui_gen_win_info *) NULL)
 454     tui_init_generic_part (win);
 455
 456   return win;
 457 }
 458
 459
 460 void
 461 tui_init_generic_part (struct tui_gen_win_info * win)
 462 {
 463   win->width =
 464     win->height =
 465     win->origin.x =
 466     win->origin.y =
 467     win->viewport_height =
 468     win->content_size =
 469     win->last_visible_line = 0;
 470   win->handle = (WINDOW *) NULL;
 471   win->content = NULL;
 472   win->content_in_use =
 473     win->is_visible = FALSE;
 474   win->title = 0;
 475 }
 476
 477
 478 /*
 479    ** init_content_element().
 480  */
 481 void
 482 init_content_element (struct tui_win_element * element, enum tui_win_type type)
 483 {
 484   element->highlight = FALSE;
 485   switch (type)
 486     {
 487     case SRC_WIN:
 488     case DISASSEM_WIN:
 489       element->which_element.source.line = (char *) NULL;
 490       element->which_element.source.line_or_addr.loa = LOA_LINE;
 491       element->which_element.source.line_or_addr.u.line_no = 0;
 492       element->which_element.source.is_exec_point = FALSE;
 493       element->which_element.source.has_break = FALSE;
 494       break;
 495     case DATA_WIN:
 496       tui_init_generic_part (&element->which_element.data_window);
 497       element->which_element.data_window.type = DATA_ITEM_WIN;
 498       ((struct tui_gen_win_info *) & element->which_element.data_window)->content =
 499         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 500       ((struct tui_gen_win_info *)
 501        & element->which_element.data_window)->content_size = 1;
 502       break;
 503     case CMD_WIN:
 504       element->which_element.command.line = (char *) NULL;
 505       break;
 506     case DATA_ITEM_WIN:
 507       element->which_element.data.name = (char *) NULL;
 508       element->which_element.data.type = TUI_REGISTER;
 509       element->which_element.data.item_no = UNDEFINED_ITEM;
 510       element->which_element.data.value = NULL;
 511       element->which_element.data.highlight = FALSE;
 512       element->which_element.data.content = (char*) NULL;
 513       break;
 514     case LOCATOR_WIN:
 515       element->which_element.locator.file_name[0] =
 516         element->which_element.locator.proc_name[0] = (char) 0;
 517       element->which_element.locator.line_no = 0;
 518       element->which_element.locator.addr = 0;
 519       break;
 520     case EXEC_INFO_WIN:
 521       memset(element->which_element.simple_string, ' ',
 522              sizeof(element->which_element.simple_string));
 523       break;
 524     default:
 525       break;
 526     }
 527 }
 528
 529 void
 530 init_win_info (struct tui_win_info * win_info)
 531 {
 532   tui_init_generic_part (&win_info->generic);
 533   win_info->can_highlight =
 534     win_info->is_highlighted = FALSE;
 535   switch (win_info->generic.type)
 536     {
 537     case SRC_WIN:
 538     case DISASSEM_WIN:
 539       win_info->detail.source_info.execution_info = (struct tui_gen_win_info *) NULL;
 540       win_info->detail.source_info.has_locator = FALSE;
 541       win_info->detail.source_info.horizontal_offset = 0;
 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.filename = 0;
 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 = (struct tui_win_info *) NULL;
 572
 573   win_info = (struct tui_win_info *) xmalloc (sizeof (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 = (tui_win_content) NULL;
 589   char *element_block_ptr = (char *) NULL;
 590   int i;
 591
 592   if ((content = (tui_win_content)
 593   xmalloc (sizeof (struct tui_win_element *) * num_elements)) != (tui_win_content) NULL)
 594     {                           /*
 595                                    ** All windows, except the data window, can allocate the elements
 596                                    ** in a chunk.  The data window cannot because items can be
 597                                    ** added/removed from the data display by the user at any time.
 598                                  */
 599       if (type != DATA_WIN)
 600         {
 601           if ((element_block_ptr = (char *)
 602            xmalloc (sizeof (struct tui_win_element) * num_elements)) != (char *) NULL)
 603             {
 604               for (i = 0; i < num_elements; i++)
 605                 {
 606                   content[i] = (struct tui_win_element *) element_block_ptr;
 607                   init_content_element (content[i], type);
 608                   element_block_ptr += sizeof (struct tui_win_element);
 609                 }
 610             }
 611           else
 612             {
 613               xfree (content);
 614               content = (tui_win_content) NULL;
 615             }
 616         }
 617     }
 618
 619   return content;
 620 }
 621
 622
 623 /* Adds the input number of elements to the windows's content.  If no
 624    content has been allocated yet, alloc_content() is called to do
 625    this.  The index of the first element added is returned, unless
 626    there is a memory allocation error, in which case, (-1) is
 627    returned.  */
 628 int
 629 tui_add_content_elements (struct tui_gen_win_info * win_info, int num_elements)
 630 {
 631   struct tui_win_element * element_ptr;
 632   int i, index_start;
 633
 634   if (win_info->content == NULL)
 635     {
 636       win_info->content = (void **) tui_alloc_content (num_elements, win_info->type);
 637       index_start = 0;
 638     }
 639   else
 640     index_start = win_info->content_size;
 641   if (win_info->content != NULL)
 642     {
 643       for (i = index_start; (i < num_elements + index_start); i++)
 644         {
 645           if ((element_ptr = (struct tui_win_element *)
 646                xmalloc (sizeof (struct tui_win_element))) != (struct tui_win_element *) NULL)
 647             {
 648               win_info->content[i] = (void *) element_ptr;
 649               init_content_element (element_ptr, win_info->type);
 650               win_info->content_size++;
 651             }
 652           else                  /* things must be really hosed now! We ran out of memory!? */
 653             return (-1);
 654         }
 655     }
 656
 657   return index_start;
 658 }
 659
 660
 661 /* Delete all curses windows associated with win_info, leaving everything
 662    else intact.  */
 663 void
 664 tui_del_window (struct tui_win_info * win_info)
 665 {
 666   struct tui_gen_win_info * generic_win;
 667
 668   switch (win_info->generic.type)
 669     {
 670     case SRC_WIN:
 671     case DISASSEM_WIN:
 672       generic_win = tui_locator_win_info_ptr ();
 673       if (generic_win != (struct tui_gen_win_info *) NULL)
 674         {
 675           tui_delete_win (generic_win->handle);
 676           generic_win->handle = (WINDOW *) NULL;
 677           generic_win->is_visible = FALSE;
 678         }
 679       if (win_info->detail.source_info.filename)
 680         {
 681           xfree (win_info->detail.source_info.filename);
 682           win_info->detail.source_info.filename = 0;
 683         }
 684       generic_win = win_info->detail.source_info.execution_info;
 685       if (generic_win != (struct tui_gen_win_info *) NULL)
 686         {
 687           tui_delete_win (generic_win->handle);
 688           generic_win->handle = (WINDOW *) NULL;
 689           generic_win->is_visible = FALSE;
 690         }
 691       break;
 692     case DATA_WIN:
 693       if (win_info->generic.content != NULL)
 694         {
 695           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 696                                 win_info->detail.data_display_info.regs_content_count);
 697           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 698                                 win_info->detail.data_display_info.data_content_count);
 699         }
 700       break;
 701     default:
 702       break;
 703     }
 704   if (win_info->generic.handle != (WINDOW *) NULL)
 705     {
 706       tui_delete_win (win_info->generic.handle);
 707       win_info->generic.handle = (WINDOW *) NULL;
 708       win_info->generic.is_visible = FALSE;
 709     }
 710 }
 711
 712
 713 void
 714 tui_free_window (struct tui_win_info * win_info)
 715 {
 716   struct tui_gen_win_info * generic_win;
 717
 718   switch (win_info->generic.type)
 719     {
 720     case SRC_WIN:
 721     case DISASSEM_WIN:
 722       generic_win = tui_locator_win_info_ptr ();
 723       if (generic_win != (struct tui_gen_win_info *) NULL)
 724         {
 725           tui_delete_win (generic_win->handle);
 726           generic_win->handle = (WINDOW *) NULL;
 727         }
 728       tui_free_win_content (generic_win);
 729       if (win_info->detail.source_info.filename)
 730         {
 731           xfree (win_info->detail.source_info.filename);
 732           win_info->detail.source_info.filename = 0;
 733         }
 734       generic_win = win_info->detail.source_info.execution_info;
 735       if (generic_win != (struct tui_gen_win_info *) NULL)
 736         {
 737           tui_delete_win (generic_win->handle);
 738           generic_win->handle = (WINDOW *) NULL;
 739           tui_free_win_content (generic_win);
 740         }
 741       break;
 742     case DATA_WIN:
 743       if (win_info->generic.content != NULL)
 744         {
 745           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 746                                  win_info->detail.data_display_info.regs_content_count);
 747           win_info->detail.data_display_info.regs_content =
 748             (tui_win_content) NULL;
 749           win_info->detail.data_display_info.regs_content_count = 0;
 750           tui_free_data_content (win_info->detail.data_display_info.data_content,
 751                                  win_info->detail.data_display_info.data_content_count);
 752           win_info->detail.data_display_info.data_content =
 753             (tui_win_content) NULL;
 754           win_info->detail.data_display_info.data_content_count = 0;
 755           win_info->detail.data_display_info.regs_display_type =
 756             TUI_UNDEFINED_REGS;
 757           win_info->detail.data_display_info.regs_column_count = 1;
 758           win_info->detail.data_display_info.display_regs = FALSE;
 759           win_info->generic.content = NULL;
 760           win_info->generic.content_size = 0;
 761         }
 762       break;
 763     default:
 764       break;
 765     }
 766   if (win_info->generic.handle != (WINDOW *) NULL)
 767     {
 768       tui_delete_win (win_info->generic.handle);
 769       win_info->generic.handle = (WINDOW *) NULL;
 770       tui_free_win_content (&win_info->generic);
 771     }
 772   if (win_info->generic.title)
 773     xfree (win_info->generic.title);
 774   xfree (win_info);
 775 }
 776
 777
 778 void
 779 tui_free_all_source_wins_content (void)
 780 {
 781   int i;
 782
 783   for (i = 0; i < (tui_source_windows ())->count; i++)
 784     {
 785       struct tui_win_info * win_info = (struct tui_win_info *) (tui_source_windows ())->list[i];
 786
 787       if (win_info != NULL)
 788         {
 789           tui_free_win_content (&(win_info->generic));
 790           tui_free_win_content (win_info->detail.source_info.execution_info);
 791         }
 792     }
 793 }
 794
 795
 796 void
 797 tui_free_win_content (struct tui_gen_win_info * win_info)
 798 {
 799   if (win_info->content != NULL)
 800     {
 801       free_content ((tui_win_content) win_info->content,
 802                    win_info->content_size,
 803                    win_info->type);
 804       win_info->content = NULL;
 805     }
 806   win_info->content_size = 0;
 807 }
 808
 809
 810 void
 811 tui_del_data_windows (tui_win_content content, int content_size)
 812 {
 813   int i;
 814
 815   /*
 816      ** Remember that data window content elements are of type struct tui_gen_win_info *,
 817      ** each of which whose single element is a data element.
 818    */
 819   for (i = 0; i < content_size; i++)
 820     {
 821       struct tui_gen_win_info * generic_win = &content[i]->which_element.data_window;
 822
 823       if (generic_win != (struct tui_gen_win_info *) NULL)
 824         {
 825           tui_delete_win (generic_win->handle);
 826           generic_win->handle = (WINDOW *) NULL;
 827           generic_win->is_visible = FALSE;
 828         }
 829     }
 830 }
 831
 832
 833 void
 834 tui_free_data_content (tui_win_content content, int content_size)
 835 {
 836   int i;
 837
 838   /*
 839      ** Remember that data window content elements are of type struct tui_gen_win_info *,
 840      ** each of which whose single element is a data element.
 841    */
 842   for (i = 0; i < content_size; i++)
 843     {
 844       struct tui_gen_win_info * generic_win = &content[i]->which_element.data_window;
 845
 846       if (generic_win != (struct tui_gen_win_info *) NULL)
 847         {
 848           tui_delete_win (generic_win->handle);
 849           generic_win->handle = (WINDOW *) NULL;
 850           tui_free_win_content (generic_win);
 851         }
 852     }
 853   free_content (content,
 854                content_size,
 855                DATA_WIN);
 856 }
 857
 858
 859 /**********************************
 860 ** LOCAL STATIC FUNCTIONS        **
 861 **********************************/
 862
 863
 864 static void
 865 free_content (tui_win_content content, int content_size, enum tui_win_type win_type)
 866 {
 867   if (content != (tui_win_content) NULL)
 868     {
 869       free_content_elements (content, content_size, win_type);
 870       xfree (content);
 871     }
 872 }
 873
 874
 875 /*
 876    ** free_content_elements().
 877  */
 878 static void
 879 free_content_elements (tui_win_content content, int content_size, enum tui_win_type type)
 880 {
 881   if (content != (tui_win_content) NULL)
 882     {
 883       int i;
 884
 885       if (type == SRC_WIN || type == DISASSEM_WIN)
 886         {
 887           /* free whole source block */
 888           xfree (content[0]->which_element.source.line);
 889         }
 890       else
 891         {
 892           for (i = 0; i < content_size; i++)
 893             {
 894               struct tui_win_element * element;
 895
 896               element = content[i];
 897               if (element != (struct tui_win_element *) NULL)
 898                 {
 899                   switch (type)
 900                     {
 901                     case DATA_WIN:
 902                       xfree (element);
 903                       break;
 904                     case DATA_ITEM_WIN:
 905                       /*
 906                          ** Note that data elements are not allocated
 907                          ** in a single block, but individually, as needed.
 908                        */
 909                       if (element->which_element.data.type != TUI_REGISTER)
 910                         xfree ((void *)element->which_element.data.name);
 911                       xfree (element->which_element.data.value);
 912                       xfree (element->which_element.data.content);
 913                       xfree (element);
 914                       break;
 915                     case CMD_WIN:
 916                       xfree (element->which_element.command.line);
 917                       break;
 918                     default:
 919                       break;
 920                     }
 921                 }
 922             }
 923         }
 924       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 925         xfree (content[0]);     /* free the element block */
 926     }
 927 }