gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2018 Free Software Foundation, Inc.
   4
   5    Contributed by Hewlett-Packard Company.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include "defs.h"
  23 #include "symtab.h"
  24 #include "tui/tui.h"
  25 #include "tui/tui-data.h"
  26 #include "tui/tui-wingeneral.h"
  27 #include "gdb_curses.h"
  28
  29 /****************************
  30 ** GLOBAL DECLARATIONS
  31 ****************************/
  32 struct tui_win_info *tui_win_list[MAX_MAJOR_WINDOWS];
  33
  34 /***************************
  35 ** Private data
  36 ****************************/
  37 static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
  38 static int term_height, term_width;
  39 static struct tui_gen_win_info _locator;
  40 static struct tui_gen_win_info exec_info[2];
  41 static struct tui_win_info *src_win_list[2];
  42 static struct tui_list source_windows = {src_win_list, 0};
  43 static struct tui_win_info *win_with_focus = NULL;
  44 static struct tui_layout_def layout_def = {
  45   SRC_WIN,                      /* DISPLAY_MODE */
  46   FALSE};                       /* SPLIT */
  47
  48 static int win_resized = FALSE;
  49
  50
  51 /*********************************
  52 ** Static function forward decls
  53 **********************************/
  54 static void free_content (tui_win_content,
  55                           int,
  56                           enum tui_win_type);
  57 static void free_content_elements (tui_win_content,
  58                                    int,
  59                                    enum tui_win_type);
  60
  61
  62
  63 /*********************************
  64 ** PUBLIC FUNCTIONS
  65 **********************************/
  66
  67 int
  68 tui_win_is_source_type (enum tui_win_type win_type)
  69 {
  70   return (win_type == SRC_WIN || win_type == DISASSEM_WIN);
  71 }
  72
  73 int
  74 tui_win_is_auxillary (enum tui_win_type win_type)
  75 {
  76   return (win_type > MAX_MAJOR_WINDOWS);
  77 }
  78
  79 int
  80 tui_win_has_locator (struct tui_win_info *win_info)
  81 {
  82   return (win_info != NULL
  83           && win_info->detail.source_info.has_locator);
  84 }
  85
  86 void
  87 tui_set_win_highlight (struct tui_win_info *win_info,
  88                        int highlight)
  89 {
  90   if (win_info != NULL)
  91     win_info->is_highlighted = highlight;
  92 }
  93
  94 /******************************************
  95 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
  96 ******************************************/
  97
  98 /* Answer a whether the terminal window has been resized or not.  */
  99 int
 100 tui_win_resized (void)
 101 {
 102   return win_resized;
 103 }
 104
 105
 106 /* Set a whether the terminal window has been resized or not.  */
 107 void
 108 tui_set_win_resized_to (int resized)
 109 {
 110   win_resized = resized;
 111 }
 112
 113
 114 /* Answer a pointer to the current layout definition.  */
 115 struct tui_layout_def *
 116 tui_layout_def (void)
 117 {
 118   return &layout_def;
 119 }
 120
 121
 122 /* Answer the window with the logical focus.  */
 123 struct tui_win_info *
 124 tui_win_with_focus (void)
 125 {
 126   return win_with_focus;
 127 }
 128
 129
 130 /* Set the window that has the logical focus.  */
 131 void
 132 tui_set_win_with_focus (struct tui_win_info *win_info)
 133 {
 134   win_with_focus = win_info;
 135 }
 136
 137
 138 /* Accessor for the current source window.  Usually there is only one
 139    source window (either source or disassembly), but both can be
 140    displayed at the same time.  */
 141 struct tui_list *
 142 tui_source_windows (void)
 143 {
 144   return &source_windows;
 145 }
 146
 147
 148 /* Clear the list of source windows.  Usually there is only one source
 149    window (either source or disassembly), but both can be displayed at
 150    the same time.  */
 151 void
 152 tui_clear_source_windows (void)
 153 {
 154   source_windows.list[0] = NULL;
 155   source_windows.list[1] = NULL;
 156   source_windows.count = 0;
 157 }
 158
 159
 160 /* Clear the pertinant detail in the source windows.  */
 161 void
 162 tui_clear_source_windows_detail (void)
 163 {
 164   int i;
 165
 166   for (i = 0; i < (tui_source_windows ())->count; i++)
 167     tui_clear_win_detail ((tui_source_windows ())->list[i]);
 168 }
 169
 170
 171 /* Add a window to the list of source windows.  Usually there is only
 172    one source window (either source or disassembly), but both can be
 173    displayed at the same time.  */
 174 void
 175 tui_add_to_source_windows (struct tui_win_info *win_info)
 176 {
 177   if (source_windows.count < 2)
 178     source_windows.list[source_windows.count++] = win_info;
 179 }
 180
 181
 182 /* Clear the pertinant detail in the windows.  */
 183 void
 184 tui_clear_win_detail (struct tui_win_info *win_info)
 185 {
 186   if (win_info != NULL)
 187     {
 188       switch (win_info->generic.type)
 189         {
 190         case SRC_WIN:
 191         case DISASSEM_WIN:
 192           win_info->detail.source_info.gdbarch = NULL;
 193           win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 194           win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 195           win_info->detail.source_info.horizontal_offset = 0;
 196           break;
 197         case CMD_WIN:
 198           wmove (win_info->generic.handle, 0, 0);
 199           break;
 200         case DATA_WIN:
 201           win_info->detail.data_display_info.data_content =
 202             (tui_win_content) NULL;
 203           win_info->detail.data_display_info.data_content_count = 0;
 204           win_info->detail.data_display_info.regs_content =
 205             (tui_win_content) NULL;
 206           win_info->detail.data_display_info.regs_content_count = 0;
 207           win_info->detail.data_display_info.regs_column_count = 1;
 208           win_info->detail.data_display_info.display_regs = FALSE;
 209           break;
 210         default:
 211           break;
 212         }
 213     }
 214 }
 215
 216
 217 /* Accessor for the source execution info ptr.  */
 218 struct tui_gen_win_info *
 219 tui_source_exec_info_win_ptr (void)
 220 {
 221   return &exec_info[0];
 222 }
 223
 224
 225 /* Accessor for the disassem execution info ptr.  */
 226 struct tui_gen_win_info *
 227 tui_disassem_exec_info_win_ptr (void)
 228 {
 229   return &exec_info[1];
 230 }
 231
 232
 233 /* Accessor for the locator win info.  Answers a pointer to the static
 234    locator win info struct.  */
 235 struct tui_gen_win_info *
 236 tui_locator_win_info_ptr (void)
 237 {
 238   return &_locator;
 239 }
 240
 241
 242 /* Accessor for the term_height.  */
 243 int
 244 tui_term_height (void)
 245 {
 246   return term_height;
 247 }
 248
 249
 250 /* Mutator for the term height.  */
 251 void
 252 tui_set_term_height_to (int h)
 253 {
 254   term_height = h;
 255 }
 256
 257
 258 /* Accessor for the term_width.  */
 259 int
 260 tui_term_width (void)
 261 {
 262   return term_width;
 263 }
 264
 265
 266 /* Mutator for the term_width.  */
 267 void
 268 tui_set_term_width_to (int w)
 269 {
 270   term_width = w;
 271 }
 272
 273
 274 /* Accessor for the current layout.  */
 275 enum tui_layout_type
 276 tui_current_layout (void)
 277 {
 278   return current_layout;
 279 }
 280
 281
 282 /* Mutator for the current layout.  */
 283 void
 284 tui_set_current_layout_to (enum tui_layout_type new_layout)
 285 {
 286   current_layout = new_layout;
 287 }
 288
 289
 290 /*****************************
 291 ** OTHER PUBLIC FUNCTIONS
 292 *****************************/
 293
 294
 295 /* Answer the next window in the list, cycling back to the top if
 296    necessary.  */
 297 struct tui_win_info *
 298 tui_next_win (struct tui_win_info *cur_win)
 299 {
 300   int type = cur_win->generic.type;
 301   struct tui_win_info *next_win = NULL;
 302
 303   if (cur_win->generic.type == CMD_WIN)
 304     type = SRC_WIN;
 305   else
 306     type = cur_win->generic.type + 1;
 307   while (type != cur_win->generic.type && (next_win == NULL))
 308     {
 309       if (tui_win_list[type]
 310           && tui_win_list[type]->generic.is_visible)
 311         next_win = tui_win_list[type];
 312       else
 313         {
 314           if (type == CMD_WIN)
 315             type = SRC_WIN;
 316           else
 317             type++;
 318         }
 319     }
 320
 321   return next_win;
 322 }
 323
 324
 325 /* Answer the prev window in the list, cycling back to the bottom if
 326    necessary.  */
 327 struct tui_win_info *
 328 tui_prev_win (struct tui_win_info *cur_win)
 329 {
 330   int type = cur_win->generic.type;
 331   struct tui_win_info *prev = NULL;
 332
 333   if (cur_win->generic.type == SRC_WIN)
 334     type = CMD_WIN;
 335   else
 336     type = cur_win->generic.type - 1;
 337   while (type != cur_win->generic.type && (prev == NULL))
 338     {
 339       if (tui_win_list[type]
 340           && tui_win_list[type]->generic.is_visible)
 341         prev = tui_win_list[type];
 342       else
 343         {
 344           if (type == SRC_WIN)
 345             type = CMD_WIN;
 346           else
 347             type--;
 348         }
 349     }
 350
 351   return prev;
 352 }
 353
 354
 355 /* Answer the window represented by name.  */
 356 struct tui_win_info *
 357 tui_partial_win_by_name (const char *name)
 358 {
 359   struct tui_win_info *win_info = NULL;
 360
 361   if (name != NULL)
 362     {
 363       int i = 0;
 364
 365       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 366         {
 367           if (tui_win_list[i] != 0)
 368             {
 369               const char *cur_name =
 370                 tui_win_name (&tui_win_list[i]->generic);
 371
 372               if (strlen (name) <= strlen (cur_name)
 373                   && startswith (cur_name, name))
 374                 win_info = tui_win_list[i];
 375             }
 376           i++;
 377         }
 378     }
 379
 380   return win_info;
 381 }
 382
 383
 384 /* Answer the name of the window.  */
 385 const char *
 386 tui_win_name (const struct tui_gen_win_info *win_info)
 387 {
 388   const char *name = NULL;
 389
 390   switch (win_info->type)
 391     {
 392     case SRC_WIN:
 393       name = SRC_NAME;
 394       break;
 395     case CMD_WIN:
 396       name = CMD_NAME;
 397       break;
 398     case DISASSEM_WIN:
 399       name = DISASSEM_NAME;
 400       break;
 401     case DATA_WIN:
 402       name = DATA_NAME;
 403       break;
 404     default:
 405       name = "";
 406       break;
 407     }
 408
 409   return name;
 410 }
 411
 412
 413 void
 414 tui_initialize_static_data (void)
 415 {
 416   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 417   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 418   tui_init_generic_part (tui_locator_win_info_ptr ());
 419 }
 420
 421
 422 struct tui_gen_win_info *
 423 tui_alloc_generic_win_info (void)
 424 {
 425   struct tui_gen_win_info *win = XNEW (struct tui_gen_win_info);
 426
 427   if (win != NULL)
 428     tui_init_generic_part (win);
 429
 430   return win;
 431 }
 432
 433
 434 void
 435 tui_init_generic_part (struct tui_gen_win_info *win)
 436 {
 437   win->width =
 438     win->height =
 439     win->origin.x =
 440     win->origin.y =
 441     win->viewport_height =
 442     win->content_size =
 443     win->last_visible_line = 0;
 444   win->handle = NULL;
 445   win->content = NULL;
 446   win->content_in_use =
 447     win->is_visible = FALSE;
 448   win->title = 0;
 449 }
 450
 451
 452 /* init_content_element().
 453  */
 454 static void
 455 init_content_element (struct tui_win_element *element,
 456                       enum tui_win_type type)
 457 {
 458   switch (type)
 459     {
 460     case SRC_WIN:
 461     case DISASSEM_WIN:
 462       element->which_element.source.line = NULL;
 463       element->which_element.source.line_or_addr.loa = LOA_LINE;
 464       element->which_element.source.line_or_addr.u.line_no = 0;
 465       element->which_element.source.is_exec_point = FALSE;
 466       element->which_element.source.has_break = FALSE;
 467       break;
 468     case DATA_WIN:
 469       tui_init_generic_part (&element->which_element.data_window);
 470       element->which_element.data_window.type = DATA_ITEM_WIN;
 471       element->which_element.data_window.content =
 472         tui_alloc_content (1, DATA_ITEM_WIN);
 473       element->which_element.data_window.content_size = 1;
 474       break;
 475     case CMD_WIN:
 476       element->which_element.command.line = NULL;
 477       break;
 478     case DATA_ITEM_WIN:
 479       element->which_element.data.name = NULL;
 480       element->which_element.data.type = TUI_REGISTER;
 481       element->which_element.data.item_no = UNDEFINED_ITEM;
 482       element->which_element.data.value = NULL;
 483       element->which_element.data.highlight = FALSE;
 484       element->which_element.data.content = NULL;
 485       break;
 486     case LOCATOR_WIN:
 487       element->which_element.locator.full_name[0] =
 488         element->which_element.locator.proc_name[0] = (char) 0;
 489       element->which_element.locator.line_no = 0;
 490       element->which_element.locator.addr = 0;
 491       break;
 492     case EXEC_INFO_WIN:
 493       memset(element->which_element.simple_string, ' ',
 494              sizeof(element->which_element.simple_string));
 495       break;
 496     default:
 497       break;
 498     }
 499 }
 500
 501 static void
 502 init_win_info (struct tui_win_info *win_info)
 503 {
 504   tui_init_generic_part (&win_info->generic);
 505   win_info->can_highlight =
 506     win_info->is_highlighted = FALSE;
 507   switch (win_info->generic.type)
 508     {
 509     case SRC_WIN:
 510     case DISASSEM_WIN:
 511       win_info->detail.source_info.execution_info
 512         = (struct tui_gen_win_info *) NULL;
 513       win_info->detail.source_info.has_locator = FALSE;
 514       win_info->detail.source_info.horizontal_offset = 0;
 515       win_info->detail.source_info.gdbarch = NULL;
 516       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 517       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 518       win_info->detail.source_info.fullname = NULL;
 519       break;
 520     case DATA_WIN:
 521       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 522       win_info->detail.data_display_info.data_content_count = 0;
 523       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 524       win_info->detail.data_display_info.regs_content_count = 0;
 525       win_info->detail.data_display_info.regs_column_count = 1;
 526       win_info->detail.data_display_info.display_regs = FALSE;
 527       win_info->detail.data_display_info.current_group = 0;
 528       break;
 529     case CMD_WIN:
 530       break;
 531     }
 532 }
 533
 534
 535 struct tui_win_info *
 536 tui_alloc_win_info (enum tui_win_type type)
 537 {
 538   struct tui_win_info *win_info = XNEW (struct tui_win_info);
 539
 540   if (win_info != NULL)
 541     {
 542       win_info->generic.type = type;
 543       init_win_info (win_info);
 544     }
 545
 546   return win_info;
 547 }
 548
 549
 550 /* Allocates the content and elements in a block.  */
 551 tui_win_content
 552 tui_alloc_content (int num_elements, enum tui_win_type type)
 553 {
 554   tui_win_content content;
 555   struct tui_win_element *element_block_ptr;
 556   int i;
 557
 558   content = XNEWVEC (struct tui_win_element *, num_elements);
 559
 560   /*
 561    * All windows, except the data window, can allocate the
 562    * elements in a chunk.  The data window cannot because items
 563    * can be added/removed from the data display by the user at any
 564    * time.
 565    */
 566   if (type != DATA_WIN)
 567     {
 568       element_block_ptr = XNEWVEC (struct tui_win_element, num_elements);
 569       for (i = 0; i < num_elements; i++)
 570         {
 571           content[i] = element_block_ptr;
 572           init_content_element (content[i], type);
 573           element_block_ptr++;
 574         }
 575     }
 576
 577   return content;
 578 }
 579
 580
 581 /* Adds the input number of elements to the windows's content.  If no
 582    content has been allocated yet, alloc_content() is called to do
 583    this.  The index of the first element added is returned, unless
 584    there is a memory allocation error, in which case, (-1) is
 585    returned.  */
 586 int
 587 tui_add_content_elements (struct tui_gen_win_info *win_info,
 588                           int num_elements)
 589 {
 590   struct tui_win_element *element_ptr;
 591   int i, index_start;
 592
 593   if (win_info->content == NULL)
 594     {
 595       win_info->content = tui_alloc_content (num_elements, win_info->type);
 596       index_start = 0;
 597     }
 598   else
 599     index_start = win_info->content_size;
 600   if (win_info->content != NULL)
 601     {
 602       for (i = index_start; (i < num_elements + index_start); i++)
 603         {
 604           element_ptr = XNEW (struct tui_win_element);
 605           if (element_ptr != NULL)
 606             {
 607               win_info->content[i] = element_ptr;
 608               init_content_element (element_ptr, win_info->type);
 609               win_info->content_size++;
 610             }
 611           else  /* Things must be really hosed now!  We ran out of
 612                    memory!?  */
 613             return (-1);
 614         }
 615     }
 616
 617   return index_start;
 618 }
 619
 620
 621 /* Delete all curses windows associated with win_info, leaving
 622    everything else intact.  */
 623 void
 624 tui_del_window (struct tui_win_info *win_info)
 625 {
 626   struct tui_gen_win_info *generic_win;
 627
 628   switch (win_info->generic.type)
 629     {
 630     case SRC_WIN:
 631     case DISASSEM_WIN:
 632       generic_win = tui_locator_win_info_ptr ();
 633       if (generic_win != (struct tui_gen_win_info *) NULL)
 634         {
 635           tui_delete_win (generic_win->handle);
 636           generic_win->handle = NULL;
 637           generic_win->is_visible = FALSE;
 638         }
 639       if (win_info->detail.source_info.fullname)
 640         {
 641           xfree (win_info->detail.source_info.fullname);
 642           win_info->detail.source_info.fullname = NULL;
 643         }
 644       generic_win = win_info->detail.source_info.execution_info;
 645       if (generic_win != (struct tui_gen_win_info *) NULL)
 646         {
 647           tui_delete_win (generic_win->handle);
 648           generic_win->handle = NULL;
 649           generic_win->is_visible = FALSE;
 650         }
 651       break;
 652     case DATA_WIN:
 653       if (win_info->generic.content != NULL)
 654         {
 655           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 656                                 win_info->detail.data_display_info.regs_content_count);
 657           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 658                                 win_info->detail.data_display_info.data_content_count);
 659         }
 660       break;
 661     default:
 662       break;
 663     }
 664   if (win_info->generic.handle != (WINDOW *) NULL)
 665     {
 666       tui_delete_win (win_info->generic.handle);
 667       win_info->generic.handle = NULL;
 668       win_info->generic.is_visible = FALSE;
 669     }
 670 }
 671
 672
 673 void
 674 tui_free_window (struct tui_win_info *win_info)
 675 {
 676   struct tui_gen_win_info *generic_win;
 677
 678   switch (win_info->generic.type)
 679     {
 680     case SRC_WIN:
 681     case DISASSEM_WIN:
 682       if (win_info->detail.source_info.fullname)
 683         {
 684           xfree (win_info->detail.source_info.fullname);
 685           win_info->detail.source_info.fullname = NULL;
 686         }
 687       generic_win = win_info->detail.source_info.execution_info;
 688       if (generic_win != (struct tui_gen_win_info *) NULL)
 689         {
 690           tui_delete_win (generic_win->handle);
 691           generic_win->handle = NULL;
 692           tui_free_win_content (generic_win);
 693         }
 694       break;
 695     case DATA_WIN:
 696       if (win_info->generic.content != NULL)
 697         {
 698           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 699                                  win_info->detail.data_display_info.regs_content_count);
 700           win_info->detail.data_display_info.regs_content =
 701             (tui_win_content) NULL;
 702           win_info->detail.data_display_info.regs_content_count = 0;
 703           tui_free_data_content (win_info->detail.data_display_info.data_content,
 704                                  win_info->detail.data_display_info.data_content_count);
 705           win_info->detail.data_display_info.data_content =
 706             (tui_win_content) NULL;
 707           win_info->detail.data_display_info.data_content_count = 0;
 708           win_info->detail.data_display_info.regs_column_count = 1;
 709           win_info->detail.data_display_info.display_regs = FALSE;
 710           win_info->generic.content = NULL;
 711           win_info->generic.content_size = 0;
 712         }
 713       break;
 714     default:
 715       break;
 716     }
 717   if (win_info->generic.handle != (WINDOW *) NULL)
 718     {
 719       tui_delete_win (win_info->generic.handle);
 720       win_info->generic.handle = NULL;
 721       tui_free_win_content (&win_info->generic);
 722     }
 723   if (win_info->generic.title)
 724     xfree (win_info->generic.title);
 725   xfree (win_info);
 726 }
 727
 728
 729 void
 730 tui_free_all_source_wins_content (void)
 731 {
 732   int i;
 733
 734   for (i = 0; i < (tui_source_windows ())->count; i++)
 735     {
 736       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 737
 738       if (win_info != NULL)
 739         {
 740           tui_free_win_content (&(win_info->generic));
 741           tui_free_win_content (win_info->detail.source_info.execution_info);
 742         }
 743     }
 744 }
 745
 746
 747 void
 748 tui_free_win_content (struct tui_gen_win_info *win_info)
 749 {
 750   if (win_info->content != NULL)
 751     {
 752       free_content (win_info->content,
 753                    win_info->content_size,
 754                    win_info->type);
 755       win_info->content = NULL;
 756     }
 757   win_info->content_size = 0;
 758 }
 759
 760
 761 void
 762 tui_del_data_windows (tui_win_content content,
 763                       int content_size)
 764 {
 765   int i;
 766
 767   /* Remember that data window content elements are of type struct
 768      tui_gen_win_info *, each of which whose single element is a data
 769      element.  */
 770   for (i = 0; i < content_size; i++)
 771     {
 772       struct tui_gen_win_info *generic_win
 773         = &content[i]->which_element.data_window;
 774
 775       if (generic_win != (struct tui_gen_win_info *) NULL)
 776         {
 777           tui_delete_win (generic_win->handle);
 778           generic_win->handle = NULL;
 779           generic_win->is_visible = FALSE;
 780         }
 781     }
 782 }
 783
 784
 785 void
 786 tui_free_data_content (tui_win_content content,
 787                        int content_size)
 788 {
 789   int i;
 790
 791   /* Remember that data window content elements are of type struct
 792      tui_gen_win_info *, each of which whose single element is a data
 793      element.  */
 794   for (i = 0; i < content_size; i++)
 795     {
 796       struct tui_gen_win_info *generic_win
 797         = &content[i]->which_element.data_window;
 798
 799       if (generic_win != (struct tui_gen_win_info *) NULL)
 800         {
 801           tui_delete_win (generic_win->handle);
 802           generic_win->handle = NULL;
 803           tui_free_win_content (generic_win);
 804         }
 805     }
 806   free_content (content,
 807                 content_size,
 808                 DATA_WIN);
 809 }
 810
 811
 812 /**********************************
 813 ** LOCAL STATIC FUNCTIONS        **
 814 **********************************/
 815
 816
 817 static void
 818 free_content (tui_win_content content,
 819               int content_size,
 820               enum tui_win_type win_type)
 821 {
 822   if (content != (tui_win_content) NULL)
 823     {
 824       free_content_elements (content, content_size, win_type);
 825       xfree (content);
 826     }
 827 }
 828
 829
 830 /* free_content_elements().
 831  */
 832 static void
 833 free_content_elements (tui_win_content content,
 834                        int content_size,
 835                        enum tui_win_type type)
 836 {
 837   if (content != (tui_win_content) NULL)
 838     {
 839       int i;
 840
 841       if (type == SRC_WIN || type == DISASSEM_WIN)
 842         {
 843           /* Free whole source block.  */
 844           xfree (content[0]->which_element.source.line);
 845         }
 846       else
 847         {
 848           for (i = 0; i < content_size; i++)
 849             {
 850               struct tui_win_element *element;
 851
 852               element = content[i];
 853               if (element != (struct tui_win_element *) NULL)
 854                 {
 855                   switch (type)
 856                     {
 857                     case DATA_WIN:
 858                       xfree (element);
 859                       break;
 860                     case DATA_ITEM_WIN:
 861                       /* Note that data elements are not allocated in
 862                          a single block, but individually, as
 863                          needed.  */
 864                       if (element->which_element.data.type != TUI_REGISTER)
 865                         xfree ((void *)element->which_element.data.name);
 866                       xfree (element->which_element.data.value);
 867                       xfree (element->which_element.data.content);
 868                       xfree (element);
 869                       break;
 870                     case CMD_WIN:
 871                       xfree (element->which_element.command.line);
 872                       break;
 873                     default:
 874                       break;
 875                     }
 876                 }
 877             }
 878         }
 879       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 880         xfree (content[0]);     /* Free the element block.  */
 881     }
 882 }