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 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.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 /* Set the origin of the window.  */
 315 void
 316 set_gen_win_origin (struct tui_gen_win_info *win_info,
 317                     int x, int y)
 318 {
 319   win_info->origin.x = x;
 320   win_info->origin.y = y;
 321 }
 322
 323
 324 /*****************************
 325 ** OTHER PUBLIC FUNCTIONS
 326 *****************************/
 327
 328
 329 /* Answer the next window in the list, cycling back to the top if
 330    necessary.  */
 331 struct tui_win_info *
 332 tui_next_win (struct tui_win_info *cur_win)
 333 {
 334   enum tui_win_type type = cur_win->generic.type;
 335   struct tui_win_info *next_win = (struct tui_win_info *) NULL;
 336
 337   if (cur_win->generic.type == CMD_WIN)
 338     type = SRC_WIN;
 339   else
 340     type = cur_win->generic.type + 1;
 341   while (type != cur_win->generic.type && (next_win == NULL))
 342     {
 343       if (tui_win_list[type]
 344           && tui_win_list[type]->generic.is_visible)
 345         next_win = tui_win_list[type];
 346       else
 347         {
 348           if (type == CMD_WIN)
 349             type = SRC_WIN;
 350           else
 351             type++;
 352         }
 353     }
 354
 355   return next_win;
 356 }
 357
 358
 359 /* Answer the prev window in the list, cycling back to the bottom if
 360    necessary.  */
 361 struct tui_win_info *
 362 tui_prev_win (struct tui_win_info *cur_win)
 363 {
 364   enum tui_win_type type = cur_win->generic.type;
 365   struct tui_win_info *prev = (struct tui_win_info *) NULL;
 366
 367   if (cur_win->generic.type == SRC_WIN)
 368     type = CMD_WIN;
 369   else
 370     type = cur_win->generic.type - 1;
 371   while (type != cur_win->generic.type && (prev == NULL))
 372     {
 373       if (tui_win_list[type]->generic.is_visible)
 374         prev = tui_win_list[type];
 375       else
 376         {
 377           if (type == SRC_WIN)
 378             type = CMD_WIN;
 379           else
 380             type--;
 381         }
 382     }
 383
 384   return prev;
 385 }
 386
 387
 388 /* Answer the window represented by name.  */
 389 struct tui_win_info *
 390 tui_partial_win_by_name (char *name)
 391 {
 392   struct tui_win_info *win_info = (struct tui_win_info *) NULL;
 393
 394   if (name != (char *) NULL)
 395     {
 396       int i = 0;
 397
 398       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 399         {
 400           if (tui_win_list[i] != 0)
 401             {
 402               char *cur_name = tui_win_name (&tui_win_list[i]->generic);
 403               if (strlen (name) <= strlen (cur_name)
 404                   && strncmp (name, cur_name, strlen (name)) == 0)
 405                 win_info = tui_win_list[i];
 406             }
 407           i++;
 408         }
 409     }
 410
 411   return win_info;
 412 }
 413
 414
 415 /* Answer the name of the window.  */
 416 char *
 417 tui_win_name (struct tui_gen_win_info *win_info)
 418 {
 419   char *name = (char *) NULL;
 420
 421   switch (win_info->type)
 422     {
 423     case SRC_WIN:
 424       name = SRC_NAME;
 425       break;
 426     case CMD_WIN:
 427       name = CMD_NAME;
 428       break;
 429     case DISASSEM_WIN:
 430       name = DISASSEM_NAME;
 431       break;
 432     case DATA_WIN:
 433       name = DATA_NAME;
 434       break;
 435     default:
 436       name = "";
 437       break;
 438     }
 439
 440   return name;
 441 }
 442
 443
 444 void
 445 tui_initialize_static_data (void)
 446 {
 447   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 448   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 449   tui_init_generic_part (tui_locator_win_info_ptr ());
 450 }
 451
 452
 453 struct tui_gen_win_info *
 454 tui_alloc_generic_win_info (void)
 455 {
 456   struct tui_gen_win_info *win;
 457
 458   if ((win = XMALLOC (struct tui_gen_win_info)) != NULL)
 459     tui_init_generic_part (win);
 460
 461   return win;
 462 }
 463
 464
 465 void
 466 tui_init_generic_part (struct tui_gen_win_info *win)
 467 {
 468   win->width =
 469     win->height =
 470     win->origin.x =
 471     win->origin.y =
 472     win->viewport_height =
 473     win->content_size =
 474     win->last_visible_line = 0;
 475   win->handle = (WINDOW *) NULL;
 476   win->content = NULL;
 477   win->content_in_use =
 478     win->is_visible = FALSE;
 479   win->title = 0;
 480 }
 481
 482
 483 /* init_content_element().
 484  */
 485 void
 486 init_content_element (struct tui_win_element *element,
 487                       enum tui_win_type type)
 488 {
 489   element->highlight = FALSE;
 490   switch (type)
 491     {
 492     case SRC_WIN:
 493     case DISASSEM_WIN:
 494       element->which_element.source.line = (char *) NULL;
 495       element->which_element.source.line_or_addr.loa = LOA_LINE;
 496       element->which_element.source.line_or_addr.u.line_no = 0;
 497       element->which_element.source.is_exec_point = FALSE;
 498       element->which_element.source.has_break = FALSE;
 499       break;
 500     case DATA_WIN:
 501       tui_init_generic_part (&element->which_element.data_window);
 502       element->which_element.data_window.type = DATA_ITEM_WIN;
 503       ((struct tui_gen_win_info *) & element->which_element.data_window)->content =
 504         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 505       ((struct tui_gen_win_info *)
 506        & element->which_element.data_window)->content_size = 1;
 507       break;
 508     case CMD_WIN:
 509       element->which_element.command.line = (char *) NULL;
 510       break;
 511     case DATA_ITEM_WIN:
 512       element->which_element.data.name = (char *) NULL;
 513       element->which_element.data.type = TUI_REGISTER;
 514       element->which_element.data.item_no = UNDEFINED_ITEM;
 515       element->which_element.data.value = NULL;
 516       element->which_element.data.highlight = FALSE;
 517       element->which_element.data.content = (char*) NULL;
 518       break;
 519     case LOCATOR_WIN:
 520       element->which_element.locator.file_name[0] =
 521         element->which_element.locator.proc_name[0] = (char) 0;
 522       element->which_element.locator.line_no = 0;
 523       element->which_element.locator.addr = 0;
 524       break;
 525     case EXEC_INFO_WIN:
 526       memset(element->which_element.simple_string, ' ',
 527              sizeof(element->which_element.simple_string));
 528       break;
 529     default:
 530       break;
 531     }
 532 }
 533
 534 void
 535 init_win_info (struct tui_win_info *win_info)
 536 {
 537   tui_init_generic_part (&win_info->generic);
 538   win_info->can_highlight =
 539     win_info->is_highlighted = FALSE;
 540   switch (win_info->generic.type)
 541     {
 542     case SRC_WIN:
 543     case DISASSEM_WIN:
 544       win_info->detail.source_info.execution_info = (struct tui_gen_win_info *) NULL;
 545       win_info->detail.source_info.has_locator = FALSE;
 546       win_info->detail.source_info.horizontal_offset = 0;
 547       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 548       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 549       win_info->detail.source_info.filename = 0;
 550       break;
 551     case DATA_WIN:
 552       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 553       win_info->detail.data_display_info.data_content_count = 0;
 554       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 555       win_info->detail.data_display_info.regs_content_count = 0;
 556       win_info->detail.data_display_info.regs_display_type =
 557         TUI_UNDEFINED_REGS;
 558       win_info->detail.data_display_info.regs_column_count = 1;
 559       win_info->detail.data_display_info.display_regs = FALSE;
 560       win_info->detail.data_display_info.current_group = 0;
 561       break;
 562     case CMD_WIN:
 563       win_info->detail.command_info.cur_line = 0;
 564       win_info->detail.command_info.curch = 0;
 565       break;
 566     default:
 567       win_info->detail.opaque = NULL;
 568       break;
 569     }
 570 }
 571
 572
 573 struct tui_win_info *
 574 tui_alloc_win_info (enum tui_win_type type)
 575 {
 576   struct tui_win_info *win_info;
 577
 578   win_info = XMALLOC (struct tui_win_info);
 579   if (win_info != NULL)
 580     {
 581       win_info->generic.type = type;
 582       init_win_info (win_info);
 583     }
 584
 585   return win_info;
 586 }
 587
 588
 589 /* Allocates the content and elements in a block.  */
 590 tui_win_content
 591 tui_alloc_content (int num_elements, enum tui_win_type type)
 592 {
 593   tui_win_content content;
 594   char *element_block_ptr;
 595   int i;
 596
 597   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 598   if (content != NULL)
 599     {
 600       /*
 601        * All windows, except the data window, can allocate the
 602        * elements in a chunk.  The data window cannot because items
 603        * can be added/removed from the data display by the user at any
 604        * time.
 605        */
 606       if (type != DATA_WIN)
 607         {
 608           element_block_ptr =
 609             xmalloc (sizeof (struct tui_win_element) * num_elements);
 610           if (element_block_ptr != NULL)
 611             {
 612               for (i = 0; i < num_elements; i++)
 613                 {
 614                   content[i] = (struct tui_win_element *) element_block_ptr;
 615                   init_content_element (content[i], type);
 616                   element_block_ptr += sizeof (struct tui_win_element);
 617                 }
 618             }
 619           else
 620             {
 621               xfree (content);
 622               content = (tui_win_content) NULL;
 623             }
 624         }
 625     }
 626
 627   return content;
 628 }
 629
 630
 631 /* Adds the input number of elements to the windows's content.  If no
 632    content has been allocated yet, alloc_content() is called to do
 633    this.  The index of the first element added is returned, unless
 634    there is a memory allocation error, in which case, (-1) is
 635    returned.  */
 636 int
 637 tui_add_content_elements (struct tui_gen_win_info *win_info,
 638                           int num_elements)
 639 {
 640   struct tui_win_element *element_ptr;
 641   int i, index_start;
 642
 643   if (win_info->content == NULL)
 644     {
 645       win_info->content = (void **) tui_alloc_content (num_elements, win_info->type);
 646       index_start = 0;
 647     }
 648   else
 649     index_start = win_info->content_size;
 650   if (win_info->content != NULL)
 651     {
 652       for (i = index_start; (i < num_elements + index_start); i++)
 653         {
 654           if ((element_ptr = XMALLOC (struct tui_win_element)) != NULL)
 655             {
 656               win_info->content[i] = (void *) element_ptr;
 657               init_content_element (element_ptr, win_info->type);
 658               win_info->content_size++;
 659             }
 660           else  /* Things must be really hosed now!  We ran out of
 661                    memory!?  */
 662             return (-1);
 663         }
 664     }
 665
 666   return index_start;
 667 }
 668
 669
 670 /* Delete all curses windows associated with win_info, leaving
 671    everything else intact.  */
 672 void
 673 tui_del_window (struct tui_win_info *win_info)
 674 {
 675   struct tui_gen_win_info *generic_win;
 676
 677   switch (win_info->generic.type)
 678     {
 679     case SRC_WIN:
 680     case DISASSEM_WIN:
 681       generic_win = tui_locator_win_info_ptr ();
 682       if (generic_win != (struct tui_gen_win_info *) NULL)
 683         {
 684           tui_delete_win (generic_win->handle);
 685           generic_win->handle = (WINDOW *) NULL;
 686           generic_win->is_visible = FALSE;
 687         }
 688       if (win_info->detail.source_info.filename)
 689         {
 690           xfree (win_info->detail.source_info.filename);
 691           win_info->detail.source_info.filename = 0;
 692         }
 693       generic_win = win_info->detail.source_info.execution_info;
 694       if (generic_win != (struct tui_gen_win_info *) NULL)
 695         {
 696           tui_delete_win (generic_win->handle);
 697           generic_win->handle = (WINDOW *) NULL;
 698           generic_win->is_visible = FALSE;
 699         }
 700       break;
 701     case DATA_WIN:
 702       if (win_info->generic.content != NULL)
 703         {
 704           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 705                                 win_info->detail.data_display_info.regs_content_count);
 706           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 707                                 win_info->detail.data_display_info.data_content_count);
 708         }
 709       break;
 710     default:
 711       break;
 712     }
 713   if (win_info->generic.handle != (WINDOW *) NULL)
 714     {
 715       tui_delete_win (win_info->generic.handle);
 716       win_info->generic.handle = (WINDOW *) NULL;
 717       win_info->generic.is_visible = FALSE;
 718     }
 719 }
 720
 721
 722 void
 723 tui_free_window (struct tui_win_info *win_info)
 724 {
 725   struct tui_gen_win_info *generic_win;
 726
 727   switch (win_info->generic.type)
 728     {
 729     case SRC_WIN:
 730     case DISASSEM_WIN:
 731       generic_win = tui_locator_win_info_ptr ();
 732       if (generic_win != (struct tui_gen_win_info *) NULL)
 733         {
 734           tui_delete_win (generic_win->handle);
 735           generic_win->handle = (WINDOW *) NULL;
 736         }
 737       tui_free_win_content (generic_win);
 738       if (win_info->detail.source_info.filename)
 739         {
 740           xfree (win_info->detail.source_info.filename);
 741           win_info->detail.source_info.filename = 0;
 742         }
 743       generic_win = win_info->detail.source_info.execution_info;
 744       if (generic_win != (struct tui_gen_win_info *) NULL)
 745         {
 746           tui_delete_win (generic_win->handle);
 747           generic_win->handle = (WINDOW *) NULL;
 748           tui_free_win_content (generic_win);
 749         }
 750       break;
 751     case DATA_WIN:
 752       if (win_info->generic.content != NULL)
 753         {
 754           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 755                                  win_info->detail.data_display_info.regs_content_count);
 756           win_info->detail.data_display_info.regs_content =
 757             (tui_win_content) NULL;
 758           win_info->detail.data_display_info.regs_content_count = 0;
 759           tui_free_data_content (win_info->detail.data_display_info.data_content,
 760                                  win_info->detail.data_display_info.data_content_count);
 761           win_info->detail.data_display_info.data_content =
 762             (tui_win_content) NULL;
 763           win_info->detail.data_display_info.data_content_count = 0;
 764           win_info->detail.data_display_info.regs_display_type =
 765             TUI_UNDEFINED_REGS;
 766           win_info->detail.data_display_info.regs_column_count = 1;
 767           win_info->detail.data_display_info.display_regs = FALSE;
 768           win_info->generic.content = NULL;
 769           win_info->generic.content_size = 0;
 770         }
 771       break;
 772     default:
 773       break;
 774     }
 775   if (win_info->generic.handle != (WINDOW *) NULL)
 776     {
 777       tui_delete_win (win_info->generic.handle);
 778       win_info->generic.handle = (WINDOW *) NULL;
 779       tui_free_win_content (&win_info->generic);
 780     }
 781   if (win_info->generic.title)
 782     xfree (win_info->generic.title);
 783   xfree (win_info);
 784 }
 785
 786
 787 void
 788 tui_free_all_source_wins_content (void)
 789 {
 790   int i;
 791
 792   for (i = 0; i < (tui_source_windows ())->count; i++)
 793     {
 794       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 795
 796       if (win_info != NULL)
 797         {
 798           tui_free_win_content (&(win_info->generic));
 799           tui_free_win_content (win_info->detail.source_info.execution_info);
 800         }
 801     }
 802 }
 803
 804
 805 void
 806 tui_free_win_content (struct tui_gen_win_info *win_info)
 807 {
 808   if (win_info->content != NULL)
 809     {
 810       free_content ((tui_win_content) win_info->content,
 811                    win_info->content_size,
 812                    win_info->type);
 813       win_info->content = NULL;
 814     }
 815   win_info->content_size = 0;
 816 }
 817
 818
 819 void
 820 tui_del_data_windows (tui_win_content content,
 821                       int content_size)
 822 {
 823   int i;
 824
 825   /* Remember that data window content elements are of type struct
 826      tui_gen_win_info *, each of which whose single element is a data
 827      element.  */
 828   for (i = 0; i < content_size; i++)
 829     {
 830       struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
 831
 832       if (generic_win != (struct tui_gen_win_info *) NULL)
 833         {
 834           tui_delete_win (generic_win->handle);
 835           generic_win->handle = (WINDOW *) NULL;
 836           generic_win->is_visible = FALSE;
 837         }
 838     }
 839 }
 840
 841
 842 void
 843 tui_free_data_content (tui_win_content content,
 844                        int content_size)
 845 {
 846   int i;
 847
 848   /* Remember that data window content elements are of type struct
 849      tui_gen_win_info *, each of which whose single element is a data
 850      element.  */
 851   for (i = 0; i < content_size; i++)
 852     {
 853       struct tui_gen_win_info *generic_win = &content[i]->which_element.data_window;
 854
 855       if (generic_win != (struct tui_gen_win_info *) NULL)
 856         {
 857           tui_delete_win (generic_win->handle);
 858           generic_win->handle = (WINDOW *) NULL;
 859           tui_free_win_content (generic_win);
 860         }
 861     }
 862   free_content (content,
 863                 content_size,
 864                 DATA_WIN);
 865 }
 866
 867
 868 /**********************************
 869 ** LOCAL STATIC FUNCTIONS        **
 870 **********************************/
 871
 872
 873 static void
 874 free_content (tui_win_content content,
 875               int content_size,
 876               enum tui_win_type win_type)
 877 {
 878   if (content != (tui_win_content) NULL)
 879     {
 880       free_content_elements (content, content_size, win_type);
 881       xfree (content);
 882     }
 883 }
 884
 885
 886 /* free_content_elements().
 887  */
 888 static void
 889 free_content_elements (tui_win_content content,
 890                        int content_size,
 891                        enum tui_win_type type)
 892 {
 893   if (content != (tui_win_content) NULL)
 894     {
 895       int i;
 896
 897       if (type == SRC_WIN || type == DISASSEM_WIN)
 898         {
 899           /* Free whole source block.  */
 900           xfree (content[0]->which_element.source.line);
 901         }
 902       else
 903         {
 904           for (i = 0; i < content_size; i++)
 905             {
 906               struct tui_win_element *element;
 907
 908               element = content[i];
 909               if (element != (struct tui_win_element *) NULL)
 910                 {
 911                   switch (type)
 912                     {
 913                     case DATA_WIN:
 914                       xfree (element);
 915                       break;
 916                     case DATA_ITEM_WIN:
 917                       /* Note that data elements are not allocated in
 918                          a single block, but individually, as
 919                          needed.  */
 920                       if (element->which_element.data.type != TUI_REGISTER)
 921                         xfree ((void *)element->which_element.data.name);
 922                       xfree (element->which_element.data.value);
 923                       xfree (element->which_element.data.content);
 924                       xfree (element);
 925                       break;
 926                     case CMD_WIN:
 927                       xfree (element->which_element.command.line);
 928                       break;
 929                     default:
 930                       break;
 931                     }
 932                 }
 933             }
 934         }
 935       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 936         xfree (content[0]);     /* Free the element block.  */
 937     }
 938 }