gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2015 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 int default_tab_len = DEFAULT_TAB_LEN;
  44 static struct tui_win_info *win_with_focus = (struct tui_win_info *) NULL;
  45 static struct tui_layout_def layout_def = {
  46   SRC_WIN,                      /* DISPLAY_MODE */
  47   FALSE,                        /* SPLIT */
  48   TUI_UNDEFINED_REGS,           /* REGS_DISPLAY_TYPE */
  49   TUI_SFLOAT_REGS};             /* FLOAT_REGS_DISPLAY_TYPE */
  50
  51 static int win_resized = FALSE;
  52
  53
  54 /*********************************
  55 ** Static function forward decls
  56 **********************************/
  57 static void free_content (tui_win_content,
  58                           int,
  59                           enum tui_win_type);
  60 static void free_content_elements (tui_win_content,
  61                                    int,
  62                                    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,
  91                        int highlight)
  92 {
  93   if (win_info != NULL)
  94     win_info->is_highlighted = highlight;
  95 }
  96
  97 /******************************************
  98 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
  99 ******************************************/
 100
 101 /* Answer a whether the terminal window has been resized or not.  */
 102 int
 103 tui_win_resized (void)
 104 {
 105   return win_resized;
 106 }
 107
 108
 109 /* Set a whether the terminal window has been resized or not.  */
 110 void
 111 tui_set_win_resized_to (int resized)
 112 {
 113   win_resized = resized;
 114 }
 115
 116
 117 /* Answer a pointer to the current layout definition.  */
 118 struct tui_layout_def *
 119 tui_layout_def (void)
 120 {
 121   return &layout_def;
 122 }
 123
 124
 125 /* Answer the window with the logical focus.  */
 126 struct tui_win_info *
 127 tui_win_with_focus (void)
 128 {
 129   return win_with_focus;
 130 }
 131
 132
 133 /* Set the window that has the logical focus.  */
 134 void
 135 tui_set_win_with_focus (struct tui_win_info *win_info)
 136 {
 137   win_with_focus = win_info;
 138 }
 139
 140
 141 /* Answer the length in chars, of tabs.  */
 142 int
 143 tui_default_tab_len (void)
 144 {
 145   return default_tab_len;
 146 }
 147
 148
 149 /* Set the length in chars, of tabs.  */
 150 void
 151 tui_set_default_tab_len (int len)
 152 {
 153   default_tab_len = len;
 154 }
 155
 156
 157 /* Accessor for the current source window.  Usually there is only one
 158    source window (either source or disassembly), but both can be
 159    displayed at the same time.  */
 160 struct tui_list *
 161 tui_source_windows (void)
 162 {
 163   return &source_windows;
 164 }
 165
 166
 167 /* Clear the list of source windows.  Usually there is only one source
 168    window (either source or disassembly), but both can be displayed at
 169    the same time.  */
 170 void
 171 tui_clear_source_windows (void)
 172 {
 173   source_windows.list[0] = NULL;
 174   source_windows.list[1] = NULL;
 175   source_windows.count = 0;
 176 }
 177
 178
 179 /* Clear the pertinant detail in the source windows.  */
 180 void
 181 tui_clear_source_windows_detail (void)
 182 {
 183   int i;
 184
 185   for (i = 0; i < (tui_source_windows ())->count; i++)
 186     tui_clear_win_detail ((tui_source_windows ())->list[i]);
 187 }
 188
 189
 190 /* Add a window to the list of source windows.  Usually there is only
 191    one source window (either source or disassembly), but both can be
 192    displayed at the same time.  */
 193 void
 194 tui_add_to_source_windows (struct tui_win_info *win_info)
 195 {
 196   if (source_windows.count < 2)
 197     source_windows.list[source_windows.count++] = (void *) win_info;
 198 }
 199
 200
 201 /* Clear the pertinant detail in the windows.  */
 202 void
 203 tui_clear_win_detail (struct tui_win_info *win_info)
 204 {
 205   if (win_info != NULL)
 206     {
 207       switch (win_info->generic.type)
 208         {
 209         case SRC_WIN:
 210         case DISASSEM_WIN:
 211           win_info->detail.source_info.gdbarch = NULL;
 212           win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 213           win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 214           win_info->detail.source_info.horizontal_offset = 0;
 215           break;
 216         case CMD_WIN:
 217           win_info->detail.command_info.cur_line =
 218             win_info->detail.command_info.curch = 0;
 219           break;
 220         case DATA_WIN:
 221           win_info->detail.data_display_info.data_content =
 222             (tui_win_content) NULL;
 223           win_info->detail.data_display_info.data_content_count = 0;
 224           win_info->detail.data_display_info.regs_content =
 225             (tui_win_content) NULL;
 226           win_info->detail.data_display_info.regs_content_count = 0;
 227           win_info->detail.data_display_info.regs_display_type =
 228             TUI_UNDEFINED_REGS;
 229           win_info->detail.data_display_info.regs_column_count = 1;
 230           win_info->detail.data_display_info.display_regs = FALSE;
 231           break;
 232         default:
 233           break;
 234         }
 235     }
 236 }
 237
 238
 239 /* Accessor for the source execution info ptr.  */
 240 struct tui_gen_win_info *
 241 tui_source_exec_info_win_ptr (void)
 242 {
 243   return &exec_info[0];
 244 }
 245
 246
 247 /* Accessor for the disassem execution info ptr.  */
 248 struct tui_gen_win_info *
 249 tui_disassem_exec_info_win_ptr (void)
 250 {
 251   return &exec_info[1];
 252 }
 253
 254
 255 /* Accessor for the locator win info.  Answers a pointer to the static
 256    locator win info struct.  */
 257 struct tui_gen_win_info *
 258 tui_locator_win_info_ptr (void)
 259 {
 260   return &_locator;
 261 }
 262
 263
 264 /* Accessor for the term_height.  */
 265 int
 266 tui_term_height (void)
 267 {
 268   return term_height;
 269 }
 270
 271
 272 /* Mutator for the term height.  */
 273 void
 274 tui_set_term_height_to (int h)
 275 {
 276   term_height = h;
 277 }
 278
 279
 280 /* Accessor for the term_width.  */
 281 int
 282 tui_term_width (void)
 283 {
 284   return term_width;
 285 }
 286
 287
 288 /* Mutator for the term_width.  */
 289 void
 290 tui_set_term_width_to (int w)
 291 {
 292   term_width = w;
 293 }
 294
 295
 296 /* Accessor for the current layout.  */
 297 enum tui_layout_type
 298 tui_current_layout (void)
 299 {
 300   return current_layout;
 301 }
 302
 303
 304 /* Mutator for the current layout.  */
 305 void
 306 tui_set_current_layout_to (enum tui_layout_type new_layout)
 307 {
 308   current_layout = new_layout;
 309 }
 310
 311
 312 /*****************************
 313 ** OTHER PUBLIC FUNCTIONS
 314 *****************************/
 315
 316
 317 /* Answer the next window in the list, cycling back to the top if
 318    necessary.  */
 319 struct tui_win_info *
 320 tui_next_win (struct tui_win_info *cur_win)
 321 {
 322   int type = cur_win->generic.type;
 323   struct tui_win_info *next_win = (struct tui_win_info *) NULL;
 324
 325   if (cur_win->generic.type == CMD_WIN)
 326     type = SRC_WIN;
 327   else
 328     type = cur_win->generic.type + 1;
 329   while (type != cur_win->generic.type && (next_win == NULL))
 330     {
 331       if (tui_win_list[type]
 332           && tui_win_list[type]->generic.is_visible)
 333         next_win = tui_win_list[type];
 334       else
 335         {
 336           if (type == CMD_WIN)
 337             type = SRC_WIN;
 338           else
 339             type++;
 340         }
 341     }
 342
 343   return next_win;
 344 }
 345
 346
 347 /* Answer the prev window in the list, cycling back to the bottom if
 348    necessary.  */
 349 struct tui_win_info *
 350 tui_prev_win (struct tui_win_info *cur_win)
 351 {
 352   int type = cur_win->generic.type;
 353   struct tui_win_info *prev = (struct tui_win_info *) NULL;
 354
 355   if (cur_win->generic.type == SRC_WIN)
 356     type = CMD_WIN;
 357   else
 358     type = cur_win->generic.type - 1;
 359   while (type != cur_win->generic.type && (prev == NULL))
 360     {
 361       if (tui_win_list[type]
 362           && tui_win_list[type]->generic.is_visible)
 363         prev = tui_win_list[type];
 364       else
 365         {
 366           if (type == SRC_WIN)
 367             type = CMD_WIN;
 368           else
 369             type--;
 370         }
 371     }
 372
 373   return prev;
 374 }
 375
 376
 377 /* Answer the window represented by name.  */
 378 struct tui_win_info *
 379 tui_partial_win_by_name (char *name)
 380 {
 381   struct tui_win_info *win_info = (struct tui_win_info *) NULL;
 382
 383   if (name != (char *) NULL)
 384     {
 385       int i = 0;
 386
 387       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 388         {
 389           if (tui_win_list[i] != 0)
 390             {
 391               char *cur_name = tui_win_name (&tui_win_list[i]->generic);
 392
 393               if (strlen (name) <= strlen (cur_name)
 394                   && strncmp (name, cur_name, strlen (name)) == 0)
 395                 win_info = tui_win_list[i];
 396             }
 397           i++;
 398         }
 399     }
 400
 401   return win_info;
 402 }
 403
 404
 405 /* Answer the name of the window.  */
 406 char *
 407 tui_win_name (struct tui_gen_win_info *win_info)
 408 {
 409   char *name = (char *) NULL;
 410
 411   switch (win_info->type)
 412     {
 413     case SRC_WIN:
 414       name = SRC_NAME;
 415       break;
 416     case CMD_WIN:
 417       name = CMD_NAME;
 418       break;
 419     case DISASSEM_WIN:
 420       name = DISASSEM_NAME;
 421       break;
 422     case DATA_WIN:
 423       name = DATA_NAME;
 424       break;
 425     default:
 426       name = "";
 427       break;
 428     }
 429
 430   return name;
 431 }
 432
 433
 434 void
 435 tui_initialize_static_data (void)
 436 {
 437   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 438   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 439   tui_init_generic_part (tui_locator_win_info_ptr ());
 440 }
 441
 442
 443 struct tui_gen_win_info *
 444 tui_alloc_generic_win_info (void)
 445 {
 446   struct tui_gen_win_info *win;
 447
 448   if ((win = XNEW (struct tui_gen_win_info)) != NULL)
 449     tui_init_generic_part (win);
 450
 451   return win;
 452 }
 453
 454
 455 void
 456 tui_init_generic_part (struct tui_gen_win_info *win)
 457 {
 458   win->width =
 459     win->height =
 460     win->origin.x =
 461     win->origin.y =
 462     win->viewport_height =
 463     win->content_size =
 464     win->last_visible_line = 0;
 465   win->handle = (WINDOW *) NULL;
 466   win->content = NULL;
 467   win->content_in_use =
 468     win->is_visible = FALSE;
 469   win->title = 0;
 470 }
 471
 472
 473 /* init_content_element().
 474  */
 475 static void
 476 init_content_element (struct tui_win_element *element,
 477                       enum tui_win_type type)
 478 {
 479   element->highlight = FALSE;
 480   switch (type)
 481     {
 482     case SRC_WIN:
 483     case DISASSEM_WIN:
 484       element->which_element.source.line = (char *) NULL;
 485       element->which_element.source.line_or_addr.loa = LOA_LINE;
 486       element->which_element.source.line_or_addr.u.line_no = 0;
 487       element->which_element.source.is_exec_point = FALSE;
 488       element->which_element.source.has_break = FALSE;
 489       break;
 490     case DATA_WIN:
 491       tui_init_generic_part (&element->which_element.data_window);
 492       element->which_element.data_window.type = DATA_ITEM_WIN;
 493       ((struct tui_gen_win_info *)
 494        &element->which_element.data_window)->content =
 495         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 496       ((struct tui_gen_win_info *)
 497        & element->which_element.data_window)->content_size = 1;
 498       break;
 499     case CMD_WIN:
 500       element->which_element.command.line = (char *) NULL;
 501       break;
 502     case DATA_ITEM_WIN:
 503       element->which_element.data.name = (char *) NULL;
 504       element->which_element.data.type = TUI_REGISTER;
 505       element->which_element.data.item_no = UNDEFINED_ITEM;
 506       element->which_element.data.value = NULL;
 507       element->which_element.data.highlight = FALSE;
 508       element->which_element.data.content = (char*) NULL;
 509       break;
 510     case LOCATOR_WIN:
 511       element->which_element.locator.full_name[0] =
 512         element->which_element.locator.proc_name[0] = (char) 0;
 513       element->which_element.locator.line_no = 0;
 514       element->which_element.locator.addr = 0;
 515       break;
 516     case EXEC_INFO_WIN:
 517       memset(element->which_element.simple_string, ' ',
 518              sizeof(element->which_element.simple_string));
 519       break;
 520     default:
 521       break;
 522     }
 523 }
 524
 525 static void
 526 init_win_info (struct tui_win_info *win_info)
 527 {
 528   tui_init_generic_part (&win_info->generic);
 529   win_info->can_highlight =
 530     win_info->is_highlighted = FALSE;
 531   switch (win_info->generic.type)
 532     {
 533     case SRC_WIN:
 534     case DISASSEM_WIN:
 535       win_info->detail.source_info.execution_info
 536         = (struct tui_gen_win_info *) NULL;
 537       win_info->detail.source_info.has_locator = FALSE;
 538       win_info->detail.source_info.horizontal_offset = 0;
 539       win_info->detail.source_info.gdbarch = NULL;
 540       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 541       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 542       win_info->detail.source_info.fullname = NULL;
 543       break;
 544     case DATA_WIN:
 545       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 546       win_info->detail.data_display_info.data_content_count = 0;
 547       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 548       win_info->detail.data_display_info.regs_content_count = 0;
 549       win_info->detail.data_display_info.regs_display_type =
 550         TUI_UNDEFINED_REGS;
 551       win_info->detail.data_display_info.regs_column_count = 1;
 552       win_info->detail.data_display_info.display_regs = FALSE;
 553       win_info->detail.data_display_info.current_group = 0;
 554       break;
 555     case CMD_WIN:
 556       win_info->detail.command_info.cur_line = 0;
 557       win_info->detail.command_info.curch = 0;
 558       break;
 559     default:
 560       win_info->detail.opaque = NULL;
 561       break;
 562     }
 563 }
 564
 565
 566 struct tui_win_info *
 567 tui_alloc_win_info (enum tui_win_type type)
 568 {
 569   struct tui_win_info *win_info;
 570
 571   win_info = XNEW (struct tui_win_info);
 572   if (win_info != NULL)
 573     {
 574       win_info->generic.type = type;
 575       init_win_info (win_info);
 576     }
 577
 578   return win_info;
 579 }
 580
 581
 582 /* Allocates the content and elements in a block.  */
 583 tui_win_content
 584 tui_alloc_content (int num_elements, enum tui_win_type type)
 585 {
 586   tui_win_content content;
 587   char *element_block_ptr;
 588   int i;
 589
 590   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 591   if (content != NULL)
 592     {
 593       /*
 594        * All windows, except the data window, can allocate the
 595        * elements in a chunk.  The data window cannot because items
 596        * can be added/removed from the data display by the user at any
 597        * time.
 598        */
 599       if (type != DATA_WIN)
 600         {
 601           element_block_ptr =
 602             xmalloc (sizeof (struct tui_win_element) * num_elements);
 603           if (element_block_ptr != NULL)
 604             {
 605               for (i = 0; i < num_elements; i++)
 606                 {
 607                   content[i] = (struct tui_win_element *) element_block_ptr;
 608                   init_content_element (content[i], type);
 609                   element_block_ptr += sizeof (struct tui_win_element);
 610                 }
 611             }
 612           else
 613             {
 614               xfree (content);
 615               content = (tui_win_content) NULL;
 616             }
 617         }
 618     }
 619
 620   return content;
 621 }
 622
 623
 624 /* Adds the input number of elements to the windows's content.  If no
 625    content has been allocated yet, alloc_content() is called to do
 626    this.  The index of the first element added is returned, unless
 627    there is a memory allocation error, in which case, (-1) is
 628    returned.  */
 629 int
 630 tui_add_content_elements (struct tui_gen_win_info *win_info,
 631                           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,
 639                                                        win_info->type);
 640       index_start = 0;
 641     }
 642   else
 643     index_start = win_info->content_size;
 644   if (win_info->content != NULL)
 645     {
 646       for (i = index_start; (i < num_elements + index_start); i++)
 647         {
 648           if ((element_ptr = XNEW (struct tui_win_element)) != NULL)
 649             {
 650               win_info->content[i] = (void *) element_ptr;
 651               init_content_element (element_ptr, win_info->type);
 652               win_info->content_size++;
 653             }
 654           else  /* Things must be really hosed now!  We ran out of
 655                    memory!?  */
 656             return (-1);
 657         }
 658     }
 659
 660   return index_start;
 661 }
 662
 663
 664 /* Delete all curses windows associated with win_info, leaving
 665    everything else intact.  */
 666 void
 667 tui_del_window (struct tui_win_info *win_info)
 668 {
 669   struct tui_gen_win_info *generic_win;
 670
 671   switch (win_info->generic.type)
 672     {
 673     case SRC_WIN:
 674     case DISASSEM_WIN:
 675       generic_win = tui_locator_win_info_ptr ();
 676       if (generic_win != (struct tui_gen_win_info *) NULL)
 677         {
 678           tui_delete_win (generic_win->handle);
 679           generic_win->handle = (WINDOW *) NULL;
 680           generic_win->is_visible = FALSE;
 681         }
 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 = (WINDOW *) NULL;
 692           generic_win->is_visible = FALSE;
 693         }
 694       break;
 695     case DATA_WIN:
 696       if (win_info->generic.content != NULL)
 697         {
 698           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 699                                 win_info->detail.data_display_info.regs_content_count);
 700           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 701                                 win_info->detail.data_display_info.data_content_count);
 702         }
 703       break;
 704     default:
 705       break;
 706     }
 707   if (win_info->generic.handle != (WINDOW *) NULL)
 708     {
 709       tui_delete_win (win_info->generic.handle);
 710       win_info->generic.handle = (WINDOW *) NULL;
 711       win_info->generic.is_visible = FALSE;
 712     }
 713 }
 714
 715
 716 void
 717 tui_free_window (struct tui_win_info *win_info)
 718 {
 719   struct tui_gen_win_info *generic_win;
 720
 721   switch (win_info->generic.type)
 722     {
 723     case SRC_WIN:
 724     case DISASSEM_WIN:
 725       generic_win = tui_locator_win_info_ptr ();
 726       if (generic_win != (struct tui_gen_win_info *) NULL)
 727         {
 728           tui_delete_win (generic_win->handle);
 729           generic_win->handle = (WINDOW *) NULL;
 730         }
 731       tui_free_win_content (generic_win);
 732       if (win_info->detail.source_info.fullname)
 733         {
 734           xfree (win_info->detail.source_info.fullname);
 735           win_info->detail.source_info.fullname = NULL;
 736         }
 737       generic_win = win_info->detail.source_info.execution_info;
 738       if (generic_win != (struct tui_gen_win_info *) NULL)
 739         {
 740           tui_delete_win (generic_win->handle);
 741           generic_win->handle = (WINDOW *) NULL;
 742           tui_free_win_content (generic_win);
 743         }
 744       break;
 745     case DATA_WIN:
 746       if (win_info->generic.content != NULL)
 747         {
 748           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 749                                  win_info->detail.data_display_info.regs_content_count);
 750           win_info->detail.data_display_info.regs_content =
 751             (tui_win_content) NULL;
 752           win_info->detail.data_display_info.regs_content_count = 0;
 753           tui_free_data_content (win_info->detail.data_display_info.data_content,
 754                                  win_info->detail.data_display_info.data_content_count);
 755           win_info->detail.data_display_info.data_content =
 756             (tui_win_content) NULL;
 757           win_info->detail.data_display_info.data_content_count = 0;
 758           win_info->detail.data_display_info.regs_display_type =
 759             TUI_UNDEFINED_REGS;
 760           win_info->detail.data_display_info.regs_column_count = 1;
 761           win_info->detail.data_display_info.display_regs = FALSE;
 762           win_info->generic.content = NULL;
 763           win_info->generic.content_size = 0;
 764         }
 765       break;
 766     default:
 767       break;
 768     }
 769   if (win_info->generic.handle != (WINDOW *) NULL)
 770     {
 771       tui_delete_win (win_info->generic.handle);
 772       win_info->generic.handle = (WINDOW *) NULL;
 773       tui_free_win_content (&win_info->generic);
 774     }
 775   if (win_info->generic.title)
 776     xfree (win_info->generic.title);
 777   xfree (win_info);
 778 }
 779
 780
 781 void
 782 tui_free_all_source_wins_content (void)
 783 {
 784   int i;
 785
 786   for (i = 0; i < (tui_source_windows ())->count; i++)
 787     {
 788       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 789
 790       if (win_info != NULL)
 791         {
 792           tui_free_win_content (&(win_info->generic));
 793           tui_free_win_content (win_info->detail.source_info.execution_info);
 794         }
 795     }
 796 }
 797
 798
 799 void
 800 tui_free_win_content (struct tui_gen_win_info *win_info)
 801 {
 802   if (win_info->content != NULL)
 803     {
 804       free_content ((tui_win_content) win_info->content,
 805                    win_info->content_size,
 806                    win_info->type);
 807       win_info->content = NULL;
 808     }
 809   win_info->content_size = 0;
 810 }
 811
 812
 813 void
 814 tui_del_data_windows (tui_win_content content,
 815                       int content_size)
 816 {
 817   int i;
 818
 819   /* Remember that data window content elements are of type struct
 820      tui_gen_win_info *, each of which whose single element is a data
 821      element.  */
 822   for (i = 0; i < content_size; i++)
 823     {
 824       struct tui_gen_win_info *generic_win
 825         = &content[i]->which_element.data_window;
 826
 827       if (generic_win != (struct tui_gen_win_info *) NULL)
 828         {
 829           tui_delete_win (generic_win->handle);
 830           generic_win->handle = (WINDOW *) NULL;
 831           generic_win->is_visible = FALSE;
 832         }
 833     }
 834 }
 835
 836
 837 void
 838 tui_free_data_content (tui_win_content content,
 839                        int content_size)
 840 {
 841   int i;
 842
 843   /* Remember that data window content elements are of type struct
 844      tui_gen_win_info *, each of which whose single element is a data
 845      element.  */
 846   for (i = 0; i < content_size; i++)
 847     {
 848       struct tui_gen_win_info *generic_win
 849         = &content[i]->which_element.data_window;
 850
 851       if (generic_win != (struct tui_gen_win_info *) NULL)
 852         {
 853           tui_delete_win (generic_win->handle);
 854           generic_win->handle = (WINDOW *) NULL;
 855           tui_free_win_content (generic_win);
 856         }
 857     }
 858   free_content (content,
 859                 content_size,
 860                 DATA_WIN);
 861 }
 862
 863
 864 /**********************************
 865 ** LOCAL STATIC FUNCTIONS        **
 866 **********************************/
 867
 868
 869 static void
 870 free_content (tui_win_content content,
 871               int content_size,
 872               enum tui_win_type win_type)
 873 {
 874   if (content != (tui_win_content) NULL)
 875     {
 876       free_content_elements (content, content_size, win_type);
 877       xfree (content);
 878     }
 879 }
 880
 881
 882 /* free_content_elements().
 883  */
 884 static void
 885 free_content_elements (tui_win_content content,
 886                        int content_size,
 887                        enum tui_win_type type)
 888 {
 889   if (content != (tui_win_content) NULL)
 890     {
 891       int i;
 892
 893       if (type == SRC_WIN || type == DISASSEM_WIN)
 894         {
 895           /* Free whole source block.  */
 896           xfree (content[0]->which_element.source.line);
 897         }
 898       else
 899         {
 900           for (i = 0; i < content_size; i++)
 901             {
 902               struct tui_win_element *element;
 903
 904               element = content[i];
 905               if (element != (struct tui_win_element *) NULL)
 906                 {
 907                   switch (type)
 908                     {
 909                     case DATA_WIN:
 910                       xfree (element);
 911                       break;
 912                     case DATA_ITEM_WIN:
 913                       /* Note that data elements are not allocated in
 914                          a single block, but individually, as
 915                          needed.  */
 916                       if (element->which_element.data.type != TUI_REGISTER)
 917                         xfree ((void *)element->which_element.data.name);
 918                       xfree (element->which_element.data.value);
 919                       xfree (element->which_element.data.content);
 920                       xfree (element);
 921                       break;
 922                     case CMD_WIN:
 923                       xfree (element->which_element.command.line);
 924                       break;
 925                     default:
 926                       break;
 927                     }
 928                 }
 929             }
 930         }
 931       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 932         xfree (content[0]);     /* Free the element block.  */
 933     }
 934 }