gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007
   4    Free Software 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., 51 Franklin Street, Fifth Floor,
  23    Boston, MA 02110-1301, 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 = {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 ((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 = XMALLOC (struct tui_gen_win_info)) != NULL)
 453     tui_init_generic_part (win);
 454
 455   return win;
 456 }
 457
 458
 459 void
 460 tui_init_generic_part (struct tui_gen_win_info *win)
 461 {
 462   win->width =
 463     win->height =
 464     win->origin.x =
 465     win->origin.y =
 466     win->viewport_height =
 467     win->content_size =
 468     win->last_visible_line = 0;
 469   win->handle = (WINDOW *) NULL;
 470   win->content = NULL;
 471   win->content_in_use =
 472     win->is_visible = FALSE;
 473   win->title = 0;
 474 }
 475
 476
 477 /*
 478    ** init_content_element().
 479  */
 480 void
 481 init_content_element (struct tui_win_element *element, enum tui_win_type type)
 482 {
 483   element->highlight = FALSE;
 484   switch (type)
 485     {
 486     case SRC_WIN:
 487     case DISASSEM_WIN:
 488       element->which_element.source.line = (char *) NULL;
 489       element->which_element.source.line_or_addr.loa = LOA_LINE;
 490       element->which_element.source.line_or_addr.u.line_no = 0;
 491       element->which_element.source.is_exec_point = FALSE;
 492       element->which_element.source.has_break = FALSE;
 493       break;
 494     case DATA_WIN:
 495       tui_init_generic_part (&element->which_element.data_window);
 496       element->which_element.data_window.type = DATA_ITEM_WIN;
 497       ((struct tui_gen_win_info *) & element->which_element.data_window)->content =
 498         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 499       ((struct tui_gen_win_info *)
 500        & element->which_element.data_window)->content_size = 1;
 501       break;
 502     case CMD_WIN:
 503       element->which_element.command.line = (char *) NULL;
 504       break;
 505     case DATA_ITEM_WIN:
 506       element->which_element.data.name = (char *) NULL;
 507       element->which_element.data.type = TUI_REGISTER;
 508       element->which_element.data.item_no = UNDEFINED_ITEM;
 509       element->which_element.data.value = NULL;
 510       element->which_element.data.highlight = FALSE;
 511       element->which_element.data.content = (char*) NULL;
 512       break;
 513     case LOCATOR_WIN:
 514       element->which_element.locator.file_name[0] =
 515         element->which_element.locator.proc_name[0] = (char) 0;
 516       element->which_element.locator.line_no = 0;
 517       element->which_element.locator.addr = 0;
 518       break;
 519     case EXEC_INFO_WIN:
 520       memset(element->which_element.simple_string, ' ',
 521              sizeof(element->which_element.simple_string));
 522       break;
 523     default:
 524       break;
 525     }
 526 }
 527
 528 void
 529 init_win_info (struct tui_win_info *win_info)
 530 {
 531   tui_init_generic_part (&win_info->generic);
 532   win_info->can_highlight =
 533     win_info->is_highlighted = FALSE;
 534   switch (win_info->generic.type)
 535     {
 536     case SRC_WIN:
 537     case DISASSEM_WIN:
 538       win_info->detail.source_info.execution_info = (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.start_line_or_addr.loa = LOA_ADDRESS;
 542       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 543       win_info->detail.source_info.filename = 0;
 544       break;
 545     case DATA_WIN:
 546       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 547       win_info->detail.data_display_info.data_content_count = 0;
 548       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 549       win_info->detail.data_display_info.regs_content_count = 0;
 550       win_info->detail.data_display_info.regs_display_type =
 551         TUI_UNDEFINED_REGS;
 552       win_info->detail.data_display_info.regs_column_count = 1;
 553       win_info->detail.data_display_info.display_regs = FALSE;
 554       win_info->detail.data_display_info.current_group = 0;
 555       break;
 556     case CMD_WIN:
 557       win_info->detail.command_info.cur_line = 0;
 558       win_info->detail.command_info.curch = 0;
 559       break;
 560     default:
 561       win_info->detail.opaque = NULL;
 562       break;
 563     }
 564 }
 565
 566
 567 struct tui_win_info *
 568 tui_alloc_win_info (enum tui_win_type type)
 569 {
 570   struct tui_win_info *win_info;
 571
 572   win_info = XMALLOC (struct tui_win_info);
 573   if (win_info != NULL)
 574     {
 575       win_info->generic.type = type;
 576       init_win_info (win_info);
 577     }
 578
 579   return win_info;
 580 }
 581
 582
 583 /* Allocates the content and elements in a block.  */
 584 tui_win_content
 585 tui_alloc_content (int num_elements, enum tui_win_type type)
 586 {
 587   tui_win_content content;
 588   char *element_block_ptr;
 589   int i;
 590
 591   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 592   if (content != NULL)
 593     {
 594       /*
 595        * All windows, except the data window, can allocate the
 596        * elements in a chunk.  The data window cannot because items
 597        * can be added/removed from the data display by the user at any
 598        * time.
 599        */
 600       if (type != DATA_WIN)
 601         {
 602           element_block_ptr =
 603             xmalloc (sizeof (struct tui_win_element) * num_elements);
 604           if (element_block_ptr != NULL)
 605             {
 606               for (i = 0; i < num_elements; i++)
 607                 {
 608                   content[i] = (struct tui_win_element *) element_block_ptr;
 609                   init_content_element (content[i], type);
 610                   element_block_ptr += sizeof (struct tui_win_element);
 611                 }
 612             }
 613           else
 614             {
 615               xfree (content);
 616               content = (tui_win_content) NULL;
 617             }
 618         }
 619     }
 620
 621   return content;
 622 }
 623
 624
 625 /* Adds the input number of elements to the windows's content.  If no
 626    content has been allocated yet, alloc_content() is called to do
 627    this.  The index of the first element added is returned, unless
 628    there is a memory allocation error, in which case, (-1) is
 629    returned.  */
 630 int
 631 tui_add_content_elements (struct tui_gen_win_info *win_info, int num_elements)
 632 {
 633   struct tui_win_element *element_ptr;
 634   int i, index_start;
 635
 636   if (win_info->content == NULL)
 637     {
 638       win_info->content = (void **) tui_alloc_content (num_elements, win_info->type);
 639       index_start = 0;
 640     }
 641   else
 642     index_start = win_info->content_size;
 643   if (win_info->content != NULL)
 644     {
 645       for (i = index_start; (i < num_elements + index_start); i++)
 646         {
 647           if ((element_ptr = XMALLOC (struct tui_win_element)) != NULL)
 648             {
 649               win_info->content[i] = (void *) element_ptr;
 650               init_content_element (element_ptr, win_info->type);
 651               win_info->content_size++;
 652             }
 653           else  /* Things must be really hosed now!  We ran out of
 654                    memory!?  */
 655             return (-1);
 656         }
 657     }
 658
 659   return index_start;
 660 }
 661
 662
 663 /* Delete all curses windows associated with win_info, leaving
 664    everything else intact.  */
 665 void
 666 tui_del_window (struct tui_win_info *win_info)
 667 {
 668   struct tui_gen_win_info *generic_win;
 669
 670   switch (win_info->generic.type)
 671     {
 672     case SRC_WIN:
 673     case DISASSEM_WIN:
 674       generic_win = tui_locator_win_info_ptr ();
 675       if (generic_win != (struct tui_gen_win_info *) NULL)
 676         {
 677           tui_delete_win (generic_win->handle);
 678           generic_win->handle = (WINDOW *) NULL;
 679           generic_win->is_visible = FALSE;
 680         }
 681       if (win_info->detail.source_info.filename)
 682         {
 683           xfree (win_info->detail.source_info.filename);
 684           win_info->detail.source_info.filename = 0;
 685         }
 686       generic_win = win_info->detail.source_info.execution_info;
 687       if (generic_win != (struct tui_gen_win_info *) NULL)
 688         {
 689           tui_delete_win (generic_win->handle);
 690           generic_win->handle = (WINDOW *) NULL;
 691           generic_win->is_visible = FALSE;
 692         }
 693       break;
 694     case DATA_WIN:
 695       if (win_info->generic.content != NULL)
 696         {
 697           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 698                                 win_info->detail.data_display_info.regs_content_count);
 699           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 700                                 win_info->detail.data_display_info.data_content_count);
 701         }
 702       break;
 703     default:
 704       break;
 705     }
 706   if (win_info->generic.handle != (WINDOW *) NULL)
 707     {
 708       tui_delete_win (win_info->generic.handle);
 709       win_info->generic.handle = (WINDOW *) NULL;
 710       win_info->generic.is_visible = FALSE;
 711     }
 712 }
 713
 714
 715 void
 716 tui_free_window (struct tui_win_info *win_info)
 717 {
 718   struct tui_gen_win_info *generic_win;
 719
 720   switch (win_info->generic.type)
 721     {
 722     case SRC_WIN:
 723     case DISASSEM_WIN:
 724       generic_win = tui_locator_win_info_ptr ();
 725       if (generic_win != (struct tui_gen_win_info *) NULL)
 726         {
 727           tui_delete_win (generic_win->handle);
 728           generic_win->handle = (WINDOW *) NULL;
 729         }
 730       tui_free_win_content (generic_win);
 731       if (win_info->detail.source_info.filename)
 732         {
 733           xfree (win_info->detail.source_info.filename);
 734           win_info->detail.source_info.filename = 0;
 735         }
 736       generic_win = win_info->detail.source_info.execution_info;
 737       if (generic_win != (struct tui_gen_win_info *) NULL)
 738         {
 739           tui_delete_win (generic_win->handle);
 740           generic_win->handle = (WINDOW *) NULL;
 741           tui_free_win_content (generic_win);
 742         }
 743       break;
 744     case DATA_WIN:
 745       if (win_info->generic.content != NULL)
 746         {
 747           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 748                                  win_info->detail.data_display_info.regs_content_count);
 749           win_info->detail.data_display_info.regs_content =
 750             (tui_win_content) NULL;
 751           win_info->detail.data_display_info.regs_content_count = 0;
 752           tui_free_data_content (win_info->detail.data_display_info.data_content,
 753                                  win_info->detail.data_display_info.data_content_count);
 754           win_info->detail.data_display_info.data_content =
 755             (tui_win_content) NULL;
 756           win_info->detail.data_display_info.data_content_count = 0;
 757           win_info->detail.data_display_info.regs_display_type =
 758             TUI_UNDEFINED_REGS;
 759           win_info->detail.data_display_info.regs_column_count = 1;
 760           win_info->detail.data_display_info.display_regs = FALSE;
 761           win_info->generic.content = NULL;
 762           win_info->generic.content_size = 0;
 763         }
 764       break;
 765     default:
 766       break;
 767     }
 768   if (win_info->generic.handle != (WINDOW *) NULL)
 769     {
 770       tui_delete_win (win_info->generic.handle);
 771       win_info->generic.handle = (WINDOW *) NULL;
 772       tui_free_win_content (&win_info->generic);
 773     }
 774   if (win_info->generic.title)
 775     xfree (win_info->generic.title);
 776   xfree (win_info);
 777 }
 778
 779
 780 void
 781 tui_free_all_source_wins_content (void)
 782 {
 783   int i;
 784
 785   for (i = 0; i < (tui_source_windows ())->count; i++)
 786     {
 787       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 788
 789       if (win_info != NULL)
 790         {
 791           tui_free_win_content (&(win_info->generic));
 792           tui_free_win_content (win_info->detail.source_info.execution_info);
 793         }
 794     }
 795 }
 796
 797
 798 void
 799 tui_free_win_content (struct tui_gen_win_info *win_info)
 800 {
 801   if (win_info->content != NULL)
 802     {
 803       free_content ((tui_win_content) win_info->content,
 804                    win_info->content_size,
 805                    win_info->type);
 806       win_info->content = NULL;
 807     }
 808   win_info->content_size = 0;
 809 }
 810
 811
 812 void
 813 tui_del_data_windows (tui_win_content content, int content_size)
 814 {
 815   int i;
 816
 817   /*
 818      ** Remember that data window content elements are of type
 819      ** struct tui_gen_win_info *, each of which whose single
 820      ** element is a data element.
 821    */
 822   for (i = 0; i < content_size; i++)
 823     {
 824       struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
 825
 826       if (generic_win != (struct tui_gen_win_info *) NULL)
 827         {
 828           tui_delete_win (generic_win->handle);
 829           generic_win->handle = (WINDOW *) NULL;
 830           generic_win->is_visible = FALSE;
 831         }
 832     }
 833 }
 834
 835
 836 void
 837 tui_free_data_content (tui_win_content content, int content_size)
 838 {
 839   int i;
 840
 841   /*
 842      ** Remember that data window content elements are of type
 843      ** struct tui_gen_win_info *, each of which whose single
 844      ** element is a data element.
 845    */
 846   for (i = 0; i < content_size; i++)
 847     {
 848       struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
 849
 850       if (generic_win != (struct tui_gen_win_info *) NULL)
 851         {
 852           tui_delete_win (generic_win->handle);
 853           generic_win->handle = (WINDOW *) NULL;
 854           tui_free_win_content (generic_win);
 855         }
 856     }
 857   free_content (content,
 858                content_size,
 859                DATA_WIN);
 860 }
 861
 862
 863 /**********************************
 864 ** LOCAL STATIC FUNCTIONS        **
 865 **********************************/
 866
 867
 868 static void
 869 free_content (tui_win_content content, int content_size, enum tui_win_type win_type)
 870 {
 871   if (content != (tui_win_content) NULL)
 872     {
 873       free_content_elements (content, content_size, win_type);
 874       xfree (content);
 875     }
 876 }
 877
 878
 879 /*
 880    ** free_content_elements().
 881  */
 882 static void
 883 free_content_elements (tui_win_content content, int content_size, enum tui_win_type type)
 884 {
 885   if (content != (tui_win_content) NULL)
 886     {
 887       int i;
 888
 889       if (type == SRC_WIN || type == DISASSEM_WIN)
 890         {
 891           /* Free whole source block.  */
 892           xfree (content[0]->which_element.source.line);
 893         }
 894       else
 895         {
 896           for (i = 0; i < content_size; i++)
 897             {
 898               struct tui_win_element *element;
 899
 900               element = content[i];
 901               if (element != (struct tui_win_element *) NULL)
 902                 {
 903                   switch (type)
 904                     {
 905                     case DATA_WIN:
 906                       xfree (element);
 907                       break;
 908                     case DATA_ITEM_WIN:
 909                       /*
 910                          ** Note that data elements are not allocated
 911                          ** in a single block, but individually, as
 912                          ** needed.
 913                        */
 914                       if (element->which_element.data.type != TUI_REGISTER)
 915                         xfree ((void *)element->which_element.data.name);
 916                       xfree (element->which_element.data.value);
 917                       xfree (element->which_element.data.content);
 918                       xfree (element);
 919                       break;
 920                     case CMD_WIN:
 921                       xfree (element->which_element.command.line);
 922                       break;
 923                     default:
 924                       break;
 925                     }
 926                 }
 927             }
 928         }
 929       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 930         xfree (content[0]);     /* Free the element block.  */
 931     }
 932 }