contrib/gdb-7/gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008,
   4    2009 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 3 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, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "symtab.h"
  25 #include "tui/tui.h"
  26 #include "tui/tui-data.h"
  27 #include "tui/tui-wingeneral.h"
  28
  29 #include "gdb_string.h"
  30 #include "gdb_curses.h"
  31
  32 /****************************
  33 ** GLOBAL DECLARATIONS
  34 ****************************/
  35 struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
  36
  37 /***************************
  38 ** Private data
  39 ****************************/
  40 static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
  41 static int term_height, term_width;
  42 static struct tui_gen_win_info _locator;
  43 static struct tui_gen_win_info exec_info[2];
  44 static struct tui_win_info *src_win_list[2];
  45 static struct tui_list source_windows = {src_win_list, 0};
  46 static int default_tab_len = DEFAULT_TAB_LEN;
  47 static struct tui_win_info *win_with_focus = (struct tui_win_info *) NULL;
  48 static struct tui_layout_def layout_def = {
  49   SRC_WIN,                      /* DISPLAY_MODE */
  50   FALSE,                        /* SPLIT */
  51   TUI_UNDEFINED_REGS,           /* REGS_DISPLAY_TYPE */
  52   TUI_SFLOAT_REGS};             /* FLOAT_REGS_DISPLAY_TYPE */
  53
  54 static int win_resized = FALSE;
  55
  56
  57 /*********************************
  58 ** Static function forward decls
  59 **********************************/
  60 static void free_content (tui_win_content,
  61                           int,
  62                           enum tui_win_type);
  63 static void free_content_elements (tui_win_content,
  64                                    int,
  65                                    enum tui_win_type);
  66
  67
  68
  69 /*********************************
  70 ** PUBLIC FUNCTIONS
  71 **********************************/
  72
  73 int
  74 tui_win_is_source_type (enum tui_win_type win_type)
  75 {
  76   return (win_type == SRC_WIN || win_type == DISASSEM_WIN);
  77 }
  78
  79 int
  80 tui_win_is_auxillary (enum tui_win_type win_type)
  81 {
  82   return (win_type > MAX_MAJOR_WINDOWS);
  83 }
  84
  85 int
  86 tui_win_has_locator (struct tui_win_info *win_info)
  87 {
  88   return (win_info != NULL
  89           && win_info->detail.source_info.has_locator);
  90 }
  91
  92 void
  93 tui_set_win_highlight (struct tui_win_info *win_info,
  94                        int highlight)
  95 {
  96   if (win_info != NULL)
  97     win_info->is_highlighted = highlight;
  98 }
  99
 100 /******************************************
 101 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
 102 ******************************************/
 103
 104 /* Answer a whether the terminal window has been resized or not.  */
 105 int
 106 tui_win_resized (void)
 107 {
 108   return win_resized;
 109 }
 110
 111
 112 /* Set a whether the terminal window has been resized or not.  */
 113 void
 114 tui_set_win_resized_to (int resized)
 115 {
 116   win_resized = resized;
 117 }
 118
 119
 120 /* Answer a pointer to the current layout definition.  */
 121 struct tui_layout_def *
 122 tui_layout_def (void)
 123 {
 124   return &layout_def;
 125 }
 126
 127
 128 /* Answer the window with the logical focus.  */
 129 struct tui_win_info *
 130 tui_win_with_focus (void)
 131 {
 132   return win_with_focus;
 133 }
 134
 135
 136 /* Set the window that has the logical focus.  */
 137 void
 138 tui_set_win_with_focus (struct tui_win_info *win_info)
 139 {
 140   win_with_focus = win_info;
 141 }
 142
 143
 144 /* Answer the length in chars, of tabs.  */
 145 int
 146 tui_default_tab_len (void)
 147 {
 148   return default_tab_len;
 149 }
 150
 151
 152 /* Set the length in chars, of tabs.  */
 153 void
 154 tui_set_default_tab_len (int len)
 155 {
 156   default_tab_len = len;
 157 }
 158
 159
 160 /* Accessor for the current source window.  Usually there is only one
 161    source window (either source or disassembly), but both can be
 162    displayed at the same time.  */
 163 struct tui_list *
 164 tui_source_windows (void)
 165 {
 166   return &source_windows;
 167 }
 168
 169
 170 /* Clear the list of source windows.  Usually there is only one source
 171    window (either source or disassembly), but both can be displayed at
 172    the same time.  */
 173 void
 174 tui_clear_source_windows (void)
 175 {
 176   source_windows.list[0] = NULL;
 177   source_windows.list[1] = NULL;
 178   source_windows.count = 0;
 179 }
 180
 181
 182 /* Clear the pertinant detail in the source windows.  */
 183 void
 184 tui_clear_source_windows_detail (void)
 185 {
 186   int i;
 187
 188   for (i = 0; i < (tui_source_windows ())->count; i++)
 189     tui_clear_win_detail ((tui_source_windows ())->list[i]);
 190 }
 191
 192
 193 /* Add a window to the list of source windows.  Usually there is only
 194    one source window (either source or disassembly), but both can be
 195    displayed at the same time.  */
 196 void
 197 tui_add_to_source_windows (struct tui_win_info *win_info)
 198 {
 199   if (source_windows.count < 2)
 200     source_windows.list[source_windows.count++] = (void *) win_info;
 201 }
 202
 203
 204 /* Clear the pertinant detail in the windows.  */
 205 void
 206 tui_clear_win_detail (struct tui_win_info *win_info)
 207 {
 208   if (win_info != NULL)
 209     {
 210       switch (win_info->generic.type)
 211         {
 212         case SRC_WIN:
 213         case DISASSEM_WIN:
 214           win_info->detail.source_info.gdbarch = NULL;
 215           win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 216           win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 217           win_info->detail.source_info.horizontal_offset = 0;
 218           break;
 219         case CMD_WIN:
 220           win_info->detail.command_info.cur_line =
 221             win_info->detail.command_info.curch = 0;
 222           break;
 223         case DATA_WIN:
 224           win_info->detail.data_display_info.data_content =
 225             (tui_win_content) NULL;
 226           win_info->detail.data_display_info.data_content_count = 0;
 227           win_info->detail.data_display_info.regs_content =
 228             (tui_win_content) NULL;
 229           win_info->detail.data_display_info.regs_content_count = 0;
 230           win_info->detail.data_display_info.regs_display_type =
 231             TUI_UNDEFINED_REGS;
 232           win_info->detail.data_display_info.regs_column_count = 1;
 233           win_info->detail.data_display_info.display_regs = FALSE;
 234           break;
 235         default:
 236           break;
 237         }
 238     }
 239 }
 240
 241
 242 /* Accessor for the source execution info ptr.  */
 243 struct tui_gen_win_info *
 244 tui_source_exec_info_win_ptr (void)
 245 {
 246   return &exec_info[0];
 247 }
 248
 249
 250 /* Accessor for the disassem execution info ptr.  */
 251 struct tui_gen_win_info *
 252 tui_disassem_exec_info_win_ptr (void)
 253 {
 254   return &exec_info[1];
 255 }
 256
 257
 258 /* Accessor for the locator win info.  Answers a pointer to the static
 259    locator win info struct.  */
 260 struct tui_gen_win_info *
 261 tui_locator_win_info_ptr (void)
 262 {
 263   return &_locator;
 264 }
 265
 266
 267 /* Accessor for the term_height.  */
 268 int
 269 tui_term_height (void)
 270 {
 271   return term_height;
 272 }
 273
 274
 275 /* Mutator for the term height.  */
 276 void
 277 tui_set_term_height_to (int h)
 278 {
 279   term_height = h;
 280 }
 281
 282
 283 /* Accessor for the term_width.  */
 284 int
 285 tui_term_width (void)
 286 {
 287   return term_width;
 288 }
 289
 290
 291 /* Mutator for the term_width.  */
 292 void
 293 tui_set_term_width_to (int w)
 294 {
 295   term_width = w;
 296 }
 297
 298
 299 /* Accessor for the current layout.  */
 300 enum tui_layout_type
 301 tui_current_layout (void)
 302 {
 303   return current_layout;
 304 }
 305
 306
 307 /* Mutator for the current layout.  */
 308 void
 309 tui_set_current_layout_to (enum tui_layout_type new_layout)
 310 {
 311   current_layout = new_layout;
 312 }
 313
 314
 315 /* Set the origin of the window.  */
 316 void
 317 set_gen_win_origin (struct tui_gen_win_info *win_info,
 318                     int x, int y)
 319 {
 320   win_info->origin.x = x;
 321   win_info->origin.y = y;
 322 }
 323
 324
 325 /*****************************
 326 ** OTHER PUBLIC FUNCTIONS
 327 *****************************/
 328
 329
 330 /* Answer the next window in the list, cycling back to the top if
 331    necessary.  */
 332 struct tui_win_info *
 333 tui_next_win (struct tui_win_info *cur_win)
 334 {
 335   enum tui_win_type type = cur_win->generic.type;
 336   struct tui_win_info *next_win = (struct tui_win_info *) NULL;
 337
 338   if (cur_win->generic.type == CMD_WIN)
 339     type = SRC_WIN;
 340   else
 341     type = cur_win->generic.type + 1;
 342   while (type != cur_win->generic.type && (next_win == NULL))
 343     {
 344       if (tui_win_list[type]
 345           && tui_win_list[type]->generic.is_visible)
 346         next_win = tui_win_list[type];
 347       else
 348         {
 349           if (type == CMD_WIN)
 350             type = SRC_WIN;
 351           else
 352             type++;
 353         }
 354     }
 355
 356   return next_win;
 357 }
 358
 359
 360 /* Answer the prev window in the list, cycling back to the bottom if
 361    necessary.  */
 362 struct tui_win_info *
 363 tui_prev_win (struct tui_win_info *cur_win)
 364 {
 365   enum tui_win_type type = cur_win->generic.type;
 366   struct tui_win_info *prev = (struct tui_win_info *) NULL;
 367
 368   if (cur_win->generic.type == SRC_WIN)
 369     type = CMD_WIN;
 370   else
 371     type = cur_win->generic.type - 1;
 372   while (type != cur_win->generic.type && (prev == NULL))
 373     {
 374       if (tui_win_list[type]
 375           && tui_win_list[type]->generic.is_visible)
 376         prev = tui_win_list[type];
 377       else
 378         {
 379           if (type == SRC_WIN)
 380             type = CMD_WIN;
 381           else
 382             type--;
 383         }
 384     }
 385
 386   return prev;
 387 }
 388
 389
 390 /* Answer the window represented by name.  */
 391 struct tui_win_info *
 392 tui_partial_win_by_name (char *name)
 393 {
 394   struct tui_win_info *win_info = (struct tui_win_info *) NULL;
 395
 396   if (name != (char *) NULL)
 397     {
 398       int i = 0;
 399
 400       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 401         {
 402           if (tui_win_list[i] != 0)
 403             {
 404               char *cur_name = tui_win_name (&tui_win_list[i]->generic);
 405               if (strlen (name) <= strlen (cur_name)
 406                   && strncmp (name, cur_name, strlen (name)) == 0)
 407                 win_info = tui_win_list[i];
 408             }
 409           i++;
 410         }
 411     }
 412
 413   return win_info;
 414 }
 415
 416
 417 /* Answer the name of the window.  */
 418 char *
 419 tui_win_name (struct tui_gen_win_info *win_info)
 420 {
 421   char *name = (char *) NULL;
 422
 423   switch (win_info->type)
 424     {
 425     case SRC_WIN:
 426       name = SRC_NAME;
 427       break;
 428     case CMD_WIN:
 429       name = CMD_NAME;
 430       break;
 431     case DISASSEM_WIN:
 432       name = DISASSEM_NAME;
 433       break;
 434     case DATA_WIN:
 435       name = DATA_NAME;
 436       break;
 437     default:
 438       name = "";
 439       break;
 440     }
 441
 442   return name;
 443 }
 444
 445
 446 void
 447 tui_initialize_static_data (void)
 448 {
 449   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 450   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 451   tui_init_generic_part (tui_locator_win_info_ptr ());
 452 }
 453
 454
 455 struct tui_gen_win_info *
 456 tui_alloc_generic_win_info (void)
 457 {
 458   struct tui_gen_win_info *win;
 459
 460   if ((win = XMALLOC (struct tui_gen_win_info)) != NULL)
 461     tui_init_generic_part (win);
 462
 463   return win;
 464 }
 465
 466
 467 void
 468 tui_init_generic_part (struct tui_gen_win_info *win)
 469 {
 470   win->width =
 471     win->height =
 472     win->origin.x =
 473     win->origin.y =
 474     win->viewport_height =
 475     win->content_size =
 476     win->last_visible_line = 0;
 477   win->handle = (WINDOW *) NULL;
 478   win->content = NULL;
 479   win->content_in_use =
 480     win->is_visible = FALSE;
 481   win->title = 0;
 482 }
 483
 484
 485 /* init_content_element().
 486  */
 487 static void
 488 init_content_element (struct tui_win_element *element,
 489                       enum tui_win_type type)
 490 {
 491   element->highlight = FALSE;
 492   switch (type)
 493     {
 494     case SRC_WIN:
 495     case DISASSEM_WIN:
 496       element->which_element.source.line = (char *) NULL;
 497       element->which_element.source.line_or_addr.loa = LOA_LINE;
 498       element->which_element.source.line_or_addr.u.line_no = 0;
 499       element->which_element.source.is_exec_point = FALSE;
 500       element->which_element.source.has_break = FALSE;
 501       break;
 502     case DATA_WIN:
 503       tui_init_generic_part (&element->which_element.data_window);
 504       element->which_element.data_window.type = DATA_ITEM_WIN;
 505       ((struct tui_gen_win_info *) & element->which_element.data_window)->content =
 506         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 507       ((struct tui_gen_win_info *)
 508        & element->which_element.data_window)->content_size = 1;
 509       break;
 510     case CMD_WIN:
 511       element->which_element.command.line = (char *) NULL;
 512       break;
 513     case DATA_ITEM_WIN:
 514       element->which_element.data.name = (char *) NULL;
 515       element->which_element.data.type = TUI_REGISTER;
 516       element->which_element.data.item_no = UNDEFINED_ITEM;
 517       element->which_element.data.value = NULL;
 518       element->which_element.data.highlight = FALSE;
 519       element->which_element.data.content = (char*) NULL;
 520       break;
 521     case LOCATOR_WIN:
 522       element->which_element.locator.file_name[0] =
 523         element->which_element.locator.proc_name[0] = (char) 0;
 524       element->which_element.locator.line_no = 0;
 525       element->which_element.locator.addr = 0;
 526       break;
 527     case EXEC_INFO_WIN:
 528       memset(element->which_element.simple_string, ' ',
 529              sizeof(element->which_element.simple_string));
 530       break;
 531     default:
 532       break;
 533     }
 534 }
 535
 536 static void
 537 init_win_info (struct tui_win_info *win_info)
 538 {
 539   tui_init_generic_part (&win_info->generic);
 540   win_info->can_highlight =
 541     win_info->is_highlighted = FALSE;
 542   switch (win_info->generic.type)
 543     {
 544     case SRC_WIN:
 545     case DISASSEM_WIN:
 546       win_info->detail.source_info.execution_info = (struct tui_gen_win_info *) NULL;
 547       win_info->detail.source_info.has_locator = FALSE;
 548       win_info->detail.source_info.horizontal_offset = 0;
 549       win_info->detail.source_info.gdbarch = NULL;
 550       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 551       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 552       win_info->detail.source_info.filename = 0;
 553       break;
 554     case DATA_WIN:
 555       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 556       win_info->detail.data_display_info.data_content_count = 0;
 557       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 558       win_info->detail.data_display_info.regs_content_count = 0;
 559       win_info->detail.data_display_info.regs_display_type =
 560         TUI_UNDEFINED_REGS;
 561       win_info->detail.data_display_info.regs_column_count = 1;
 562       win_info->detail.data_display_info.display_regs = FALSE;
 563       win_info->detail.data_display_info.current_group = 0;
 564       break;
 565     case CMD_WIN:
 566       win_info->detail.command_info.cur_line = 0;
 567       win_info->detail.command_info.curch = 0;
 568       break;
 569     default:
 570       win_info->detail.opaque = NULL;
 571       break;
 572     }
 573 }
 574
 575
 576 struct tui_win_info *
 577 tui_alloc_win_info (enum tui_win_type type)
 578 {
 579   struct tui_win_info *win_info;
 580
 581   win_info = XMALLOC (struct tui_win_info);
 582   if (win_info != NULL)
 583     {
 584       win_info->generic.type = type;
 585       init_win_info (win_info);
 586     }
 587
 588   return win_info;
 589 }
 590
 591
 592 /* Allocates the content and elements in a block.  */
 593 tui_win_content
 594 tui_alloc_content (int num_elements, enum tui_win_type type)
 595 {
 596   tui_win_content content;
 597   char *element_block_ptr;
 598   int i;
 599
 600   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 601   if (content != NULL)
 602     {
 603       /*
 604        * All windows, except the data window, can allocate the
 605        * elements in a chunk.  The data window cannot because items
 606        * can be added/removed from the data display by the user at any
 607        * time.
 608        */
 609       if (type != DATA_WIN)
 610         {
 611           element_block_ptr =
 612             xmalloc (sizeof (struct tui_win_element) * num_elements);
 613           if (element_block_ptr != NULL)
 614             {
 615               for (i = 0; i < num_elements; i++)
 616                 {
 617                   content[i] = (struct tui_win_element *) element_block_ptr;
 618                   init_content_element (content[i], type);
 619                   element_block_ptr += sizeof (struct tui_win_element);
 620                 }
 621             }
 622           else
 623             {
 624               xfree (content);
 625               content = (tui_win_content) NULL;
 626             }
 627         }
 628     }
 629
 630   return content;
 631 }
 632
 633
 634 /* Adds the input number of elements to the windows's content.  If no
 635    content has been allocated yet, alloc_content() is called to do
 636    this.  The index of the first element added is returned, unless
 637    there is a memory allocation error, in which case, (-1) is
 638    returned.  */
 639 int
 640 tui_add_content_elements (struct tui_gen_win_info *win_info,
 641                           int num_elements)
 642 {
 643   struct tui_win_element *element_ptr;
 644   int i, index_start;
 645
 646   if (win_info->content == NULL)
 647     {
 648       win_info->content = (void **) tui_alloc_content (num_elements, win_info->type);
 649       index_start = 0;
 650     }
 651   else
 652     index_start = win_info->content_size;
 653   if (win_info->content != NULL)
 654     {
 655       for (i = index_start; (i < num_elements + index_start); i++)
 656         {
 657           if ((element_ptr = XMALLOC (struct tui_win_element)) != NULL)
 658             {
 659               win_info->content[i] = (void *) element_ptr;
 660               init_content_element (element_ptr, win_info->type);
 661               win_info->content_size++;
 662             }
 663           else  /* Things must be really hosed now!  We ran out of
 664                    memory!?  */
 665             return (-1);
 666         }
 667     }
 668
 669   return index_start;
 670 }
 671
 672
 673 /* Delete all curses windows associated with win_info, leaving
 674    everything else intact.  */
 675 void
 676 tui_del_window (struct tui_win_info *win_info)
 677 {
 678   struct tui_gen_win_info *generic_win;
 679
 680   switch (win_info->generic.type)
 681     {
 682     case SRC_WIN:
 683     case DISASSEM_WIN:
 684       generic_win = tui_locator_win_info_ptr ();
 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       if (win_info->detail.source_info.filename)
 692         {
 693           xfree (win_info->detail.source_info.filename);
 694           win_info->detail.source_info.filename = 0;
 695         }
 696       generic_win = win_info->detail.source_info.execution_info;
 697       if (generic_win != (struct tui_gen_win_info *) NULL)
 698         {
 699           tui_delete_win (generic_win->handle);
 700           generic_win->handle = (WINDOW *) NULL;
 701           generic_win->is_visible = FALSE;
 702         }
 703       break;
 704     case DATA_WIN:
 705       if (win_info->generic.content != NULL)
 706         {
 707           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 708                                 win_info->detail.data_display_info.regs_content_count);
 709           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 710                                 win_info->detail.data_display_info.data_content_count);
 711         }
 712       break;
 713     default:
 714       break;
 715     }
 716   if (win_info->generic.handle != (WINDOW *) NULL)
 717     {
 718       tui_delete_win (win_info->generic.handle);
 719       win_info->generic.handle = (WINDOW *) NULL;
 720       win_info->generic.is_visible = FALSE;
 721     }
 722 }
 723
 724
 725 void
 726 tui_free_window (struct tui_win_info *win_info)
 727 {
 728   struct tui_gen_win_info *generic_win;
 729
 730   switch (win_info->generic.type)
 731     {
 732     case SRC_WIN:
 733     case DISASSEM_WIN:
 734       generic_win = tui_locator_win_info_ptr ();
 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         }
 740       tui_free_win_content (generic_win);
 741       if (win_info->detail.source_info.filename)
 742         {
 743           xfree (win_info->detail.source_info.filename);
 744           win_info->detail.source_info.filename = 0;
 745         }
 746       generic_win = win_info->detail.source_info.execution_info;
 747       if (generic_win != (struct tui_gen_win_info *) NULL)
 748         {
 749           tui_delete_win (generic_win->handle);
 750           generic_win->handle = (WINDOW *) NULL;
 751           tui_free_win_content (generic_win);
 752         }
 753       break;
 754     case DATA_WIN:
 755       if (win_info->generic.content != NULL)
 756         {
 757           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 758                                  win_info->detail.data_display_info.regs_content_count);
 759           win_info->detail.data_display_info.regs_content =
 760             (tui_win_content) NULL;
 761           win_info->detail.data_display_info.regs_content_count = 0;
 762           tui_free_data_content (win_info->detail.data_display_info.data_content,
 763                                  win_info->detail.data_display_info.data_content_count);
 764           win_info->detail.data_display_info.data_content =
 765             (tui_win_content) NULL;
 766           win_info->detail.data_display_info.data_content_count = 0;
 767           win_info->detail.data_display_info.regs_display_type =
 768             TUI_UNDEFINED_REGS;
 769           win_info->detail.data_display_info.regs_column_count = 1;
 770           win_info->detail.data_display_info.display_regs = FALSE;
 771           win_info->generic.content = NULL;
 772           win_info->generic.content_size = 0;
 773         }
 774       break;
 775     default:
 776       break;
 777     }
 778   if (win_info->generic.handle != (WINDOW *) NULL)
 779     {
 780       tui_delete_win (win_info->generic.handle);
 781       win_info->generic.handle = (WINDOW *) NULL;
 782       tui_free_win_content (&win_info->generic);
 783     }
 784   if (win_info->generic.title)
 785     xfree (win_info->generic.title);
 786   xfree (win_info);
 787 }
 788
 789
 790 void
 791 tui_free_all_source_wins_content (void)
 792 {
 793   int i;
 794
 795   for (i = 0; i < (tui_source_windows ())->count; i++)
 796     {
 797       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 798
 799       if (win_info != NULL)
 800         {
 801           tui_free_win_content (&(win_info->generic));
 802           tui_free_win_content (win_info->detail.source_info.execution_info);
 803         }
 804     }
 805 }
 806
 807
 808 void
 809 tui_free_win_content (struct tui_gen_win_info *win_info)
 810 {
 811   if (win_info->content != NULL)
 812     {
 813       free_content ((tui_win_content) win_info->content,
 814                    win_info->content_size,
 815                    win_info->type);
 816       win_info->content = NULL;
 817     }
 818   win_info->content_size = 0;
 819 }
 820
 821
 822 void
 823 tui_del_data_windows (tui_win_content content,
 824                       int content_size)
 825 {
 826   int i;
 827
 828   /* Remember that data window content elements are of type struct
 829      tui_gen_win_info *, each of which whose single element is a data
 830      element.  */
 831   for (i = 0; i < content_size; i++)
 832     {
 833       struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
 834
 835       if (generic_win != (struct tui_gen_win_info *) NULL)
 836         {
 837           tui_delete_win (generic_win->handle);
 838           generic_win->handle = (WINDOW *) NULL;
 839           generic_win->is_visible = FALSE;
 840         }
 841     }
 842 }
 843
 844
 845 void
 846 tui_free_data_content (tui_win_content content,
 847                        int content_size)
 848 {
 849   int i;
 850
 851   /* Remember that data window content elements are of type struct
 852      tui_gen_win_info *, each of which whose single element is a data
 853      element.  */
 854   for (i = 0; i < content_size; i++)
 855     {
 856       struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
 857
 858       if (generic_win != (struct tui_gen_win_info *) NULL)
 859         {
 860           tui_delete_win (generic_win->handle);
 861           generic_win->handle = (WINDOW *) NULL;
 862           tui_free_win_content (generic_win);
 863         }
 864     }
 865   free_content (content,
 866                 content_size,
 867                 DATA_WIN);
 868 }
 869
 870
 871 /**********************************
 872 ** LOCAL STATIC FUNCTIONS        **
 873 **********************************/
 874
 875
 876 static void
 877 free_content (tui_win_content content,
 878               int content_size,
 879               enum tui_win_type win_type)
 880 {
 881   if (content != (tui_win_content) NULL)
 882     {
 883       free_content_elements (content, content_size, win_type);
 884       xfree (content);
 885     }
 886 }
 887
 888
 889 /* free_content_elements().
 890  */
 891 static void
 892 free_content_elements (tui_win_content content,
 893                        int content_size,
 894                        enum tui_win_type type)
 895 {
 896   if (content != (tui_win_content) NULL)
 897     {
 898       int i;
 899
 900       if (type == SRC_WIN || type == DISASSEM_WIN)
 901         {
 902           /* Free whole source block.  */
 903           xfree (content[0]->which_element.source.line);
 904         }
 905       else
 906         {
 907           for (i = 0; i < content_size; i++)
 908             {
 909               struct tui_win_element *element;
 910
 911               element = content[i];
 912               if (element != (struct tui_win_element *) NULL)
 913                 {
 914                   switch (type)
 915                     {
 916                     case DATA_WIN:
 917                       xfree (element);
 918                       break;
 919                     case DATA_ITEM_WIN:
 920                       /* Note that data elements are not allocated in
 921                          a single block, but individually, as
 922                          needed.  */
 923                       if (element->which_element.data.type != TUI_REGISTER)
 924                         xfree ((void *)element->which_element.data.name);
 925                       xfree (element->which_element.data.value);
 926                       xfree (element->which_element.data.content);
 927                       xfree (element);
 928                       break;
 929                     case CMD_WIN:
 930                       xfree (element->which_element.command.line);
 931                       break;
 932                     default:
 933                       break;
 934                     }
 935                 }
 936             }
 937         }
 938       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 939         xfree (content[0]);     /* Free the element block.  */
 940     }
 941 }