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, 2010, 2011 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
 406               if (strlen (name) <= strlen (cur_name)
 407                   && strncmp (name, cur_name, strlen (name)) == 0)
 408                 win_info = tui_win_list[i];
 409             }
 410           i++;
 411         }
 412     }
 413
 414   return win_info;
 415 }
 416
 417
 418 /* Answer the name of the window.  */
 419 char *
 420 tui_win_name (struct tui_gen_win_info *win_info)
 421 {
 422   char *name = (char *) NULL;
 423
 424   switch (win_info->type)
 425     {
 426     case SRC_WIN:
 427       name = SRC_NAME;
 428       break;
 429     case CMD_WIN:
 430       name = CMD_NAME;
 431       break;
 432     case DISASSEM_WIN:
 433       name = DISASSEM_NAME;
 434       break;
 435     case DATA_WIN:
 436       name = DATA_NAME;
 437       break;
 438     default:
 439       name = "";
 440       break;
 441     }
 442
 443   return name;
 444 }
 445
 446
 447 void
 448 tui_initialize_static_data (void)
 449 {
 450   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 451   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 452   tui_init_generic_part (tui_locator_win_info_ptr ());
 453 }
 454
 455
 456 struct tui_gen_win_info *
 457 tui_alloc_generic_win_info (void)
 458 {
 459   struct tui_gen_win_info *win;
 460
 461   if ((win = XMALLOC (struct tui_gen_win_info)) != NULL)
 462     tui_init_generic_part (win);
 463
 464   return win;
 465 }
 466
 467
 468 void
 469 tui_init_generic_part (struct tui_gen_win_info *win)
 470 {
 471   win->width =
 472     win->height =
 473     win->origin.x =
 474     win->origin.y =
 475     win->viewport_height =
 476     win->content_size =
 477     win->last_visible_line = 0;
 478   win->handle = (WINDOW *) NULL;
 479   win->content = NULL;
 480   win->content_in_use =
 481     win->is_visible = FALSE;
 482   win->title = 0;
 483 }
 484
 485
 486 /* init_content_element().
 487  */
 488 static void
 489 init_content_element (struct tui_win_element *element,
 490                       enum tui_win_type type)
 491 {
 492   element->highlight = FALSE;
 493   switch (type)
 494     {
 495     case SRC_WIN:
 496     case DISASSEM_WIN:
 497       element->which_element.source.line = (char *) NULL;
 498       element->which_element.source.line_or_addr.loa = LOA_LINE;
 499       element->which_element.source.line_or_addr.u.line_no = 0;
 500       element->which_element.source.is_exec_point = FALSE;
 501       element->which_element.source.has_break = FALSE;
 502       break;
 503     case DATA_WIN:
 504       tui_init_generic_part (&element->which_element.data_window);
 505       element->which_element.data_window.type = DATA_ITEM_WIN;
 506       ((struct tui_gen_win_info *)
 507        &element->which_element.data_window)->content =
 508         (void **) tui_alloc_content (1, DATA_ITEM_WIN);
 509       ((struct tui_gen_win_info *)
 510        & element->which_element.data_window)->content_size = 1;
 511       break;
 512     case CMD_WIN:
 513       element->which_element.command.line = (char *) NULL;
 514       break;
 515     case DATA_ITEM_WIN:
 516       element->which_element.data.name = (char *) NULL;
 517       element->which_element.data.type = TUI_REGISTER;
 518       element->which_element.data.item_no = UNDEFINED_ITEM;
 519       element->which_element.data.value = NULL;
 520       element->which_element.data.highlight = FALSE;
 521       element->which_element.data.content = (char*) NULL;
 522       break;
 523     case LOCATOR_WIN:
 524       element->which_element.locator.file_name[0] =
 525         element->which_element.locator.proc_name[0] = (char) 0;
 526       element->which_element.locator.line_no = 0;
 527       element->which_element.locator.addr = 0;
 528       break;
 529     case EXEC_INFO_WIN:
 530       memset(element->which_element.simple_string, ' ',
 531              sizeof(element->which_element.simple_string));
 532       break;
 533     default:
 534       break;
 535     }
 536 }
 537
 538 static void
 539 init_win_info (struct tui_win_info *win_info)
 540 {
 541   tui_init_generic_part (&win_info->generic);
 542   win_info->can_highlight =
 543     win_info->is_highlighted = FALSE;
 544   switch (win_info->generic.type)
 545     {
 546     case SRC_WIN:
 547     case DISASSEM_WIN:
 548       win_info->detail.source_info.execution_info
 549         = (struct tui_gen_win_info *) NULL;
 550       win_info->detail.source_info.has_locator = FALSE;
 551       win_info->detail.source_info.horizontal_offset = 0;
 552       win_info->detail.source_info.gdbarch = NULL;
 553       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 554       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 555       win_info->detail.source_info.filename = 0;
 556       break;
 557     case DATA_WIN:
 558       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 559       win_info->detail.data_display_info.data_content_count = 0;
 560       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 561       win_info->detail.data_display_info.regs_content_count = 0;
 562       win_info->detail.data_display_info.regs_display_type =
 563         TUI_UNDEFINED_REGS;
 564       win_info->detail.data_display_info.regs_column_count = 1;
 565       win_info->detail.data_display_info.display_regs = FALSE;
 566       win_info->detail.data_display_info.current_group = 0;
 567       break;
 568     case CMD_WIN:
 569       win_info->detail.command_info.cur_line = 0;
 570       win_info->detail.command_info.curch = 0;
 571       break;
 572     default:
 573       win_info->detail.opaque = NULL;
 574       break;
 575     }
 576 }
 577
 578
 579 struct tui_win_info *
 580 tui_alloc_win_info (enum tui_win_type type)
 581 {
 582   struct tui_win_info *win_info;
 583
 584   win_info = XMALLOC (struct tui_win_info);
 585   if (win_info != NULL)
 586     {
 587       win_info->generic.type = type;
 588       init_win_info (win_info);
 589     }
 590
 591   return win_info;
 592 }
 593
 594
 595 /* Allocates the content and elements in a block.  */
 596 tui_win_content
 597 tui_alloc_content (int num_elements, enum tui_win_type type)
 598 {
 599   tui_win_content content;
 600   char *element_block_ptr;
 601   int i;
 602
 603   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 604   if (content != NULL)
 605     {
 606       /*
 607        * All windows, except the data window, can allocate the
 608        * elements in a chunk.  The data window cannot because items
 609        * can be added/removed from the data display by the user at any
 610        * time.
 611        */
 612       if (type != DATA_WIN)
 613         {
 614           element_block_ptr =
 615             xmalloc (sizeof (struct tui_win_element) * num_elements);
 616           if (element_block_ptr != NULL)
 617             {
 618               for (i = 0; i < num_elements; i++)
 619                 {
 620                   content[i] = (struct tui_win_element *) element_block_ptr;
 621                   init_content_element (content[i], type);
 622                   element_block_ptr += sizeof (struct tui_win_element);
 623                 }
 624             }
 625           else
 626             {
 627               xfree (content);
 628               content = (tui_win_content) NULL;
 629             }
 630         }
 631     }
 632
 633   return content;
 634 }
 635
 636
 637 /* Adds the input number of elements to the windows's content.  If no
 638    content has been allocated yet, alloc_content() is called to do
 639    this.  The index of the first element added is returned, unless
 640    there is a memory allocation error, in which case, (-1) is
 641    returned.  */
 642 int
 643 tui_add_content_elements (struct tui_gen_win_info *win_info,
 644                           int num_elements)
 645 {
 646   struct tui_win_element *element_ptr;
 647   int i, index_start;
 648
 649   if (win_info->content == NULL)
 650     {
 651       win_info->content = (void **) tui_alloc_content (num_elements,
 652                                                        win_info->type);
 653       index_start = 0;
 654     }
 655   else
 656     index_start = win_info->content_size;
 657   if (win_info->content != NULL)
 658     {
 659       for (i = index_start; (i < num_elements + index_start); i++)
 660         {
 661           if ((element_ptr = XMALLOC (struct tui_win_element)) != NULL)
 662             {
 663               win_info->content[i] = (void *) element_ptr;
 664               init_content_element (element_ptr, win_info->type);
 665               win_info->content_size++;
 666             }
 667           else  /* Things must be really hosed now!  We ran out of
 668                    memory!?  */
 669             return (-1);
 670         }
 671     }
 672
 673   return index_start;
 674 }
 675
 676
 677 /* Delete all curses windows associated with win_info, leaving
 678    everything else intact.  */
 679 void
 680 tui_del_window (struct tui_win_info *win_info)
 681 {
 682   struct tui_gen_win_info *generic_win;
 683
 684   switch (win_info->generic.type)
 685     {
 686     case SRC_WIN:
 687     case DISASSEM_WIN:
 688       generic_win = tui_locator_win_info_ptr ();
 689       if (generic_win != (struct tui_gen_win_info *) NULL)
 690         {
 691           tui_delete_win (generic_win->handle);
 692           generic_win->handle = (WINDOW *) NULL;
 693           generic_win->is_visible = FALSE;
 694         }
 695       if (win_info->detail.source_info.filename)
 696         {
 697           xfree (win_info->detail.source_info.filename);
 698           win_info->detail.source_info.filename = 0;
 699         }
 700       generic_win = win_info->detail.source_info.execution_info;
 701       if (generic_win != (struct tui_gen_win_info *) NULL)
 702         {
 703           tui_delete_win (generic_win->handle);
 704           generic_win->handle = (WINDOW *) NULL;
 705           generic_win->is_visible = FALSE;
 706         }
 707       break;
 708     case DATA_WIN:
 709       if (win_info->generic.content != NULL)
 710         {
 711           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 712                                 win_info->detail.data_display_info.regs_content_count);
 713           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 714                                 win_info->detail.data_display_info.data_content_count);
 715         }
 716       break;
 717     default:
 718       break;
 719     }
 720   if (win_info->generic.handle != (WINDOW *) NULL)
 721     {
 722       tui_delete_win (win_info->generic.handle);
 723       win_info->generic.handle = (WINDOW *) NULL;
 724       win_info->generic.is_visible = FALSE;
 725     }
 726 }
 727
 728
 729 void
 730 tui_free_window (struct tui_win_info *win_info)
 731 {
 732   struct tui_gen_win_info *generic_win;
 733
 734   switch (win_info->generic.type)
 735     {
 736     case SRC_WIN:
 737     case DISASSEM_WIN:
 738       generic_win = tui_locator_win_info_ptr ();
 739       if (generic_win != (struct tui_gen_win_info *) NULL)
 740         {
 741           tui_delete_win (generic_win->handle);
 742           generic_win->handle = (WINDOW *) NULL;
 743         }
 744       tui_free_win_content (generic_win);
 745       if (win_info->detail.source_info.filename)
 746         {
 747           xfree (win_info->detail.source_info.filename);
 748           win_info->detail.source_info.filename = 0;
 749         }
 750       generic_win = win_info->detail.source_info.execution_info;
 751       if (generic_win != (struct tui_gen_win_info *) NULL)
 752         {
 753           tui_delete_win (generic_win->handle);
 754           generic_win->handle = (WINDOW *) NULL;
 755           tui_free_win_content (generic_win);
 756         }
 757       break;
 758     case DATA_WIN:
 759       if (win_info->generic.content != NULL)
 760         {
 761           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 762                                  win_info->detail.data_display_info.regs_content_count);
 763           win_info->detail.data_display_info.regs_content =
 764             (tui_win_content) NULL;
 765           win_info->detail.data_display_info.regs_content_count = 0;
 766           tui_free_data_content (win_info->detail.data_display_info.data_content,
 767                                  win_info->detail.data_display_info.data_content_count);
 768           win_info->detail.data_display_info.data_content =
 769             (tui_win_content) NULL;
 770           win_info->detail.data_display_info.data_content_count = 0;
 771           win_info->detail.data_display_info.regs_display_type =
 772             TUI_UNDEFINED_REGS;
 773           win_info->detail.data_display_info.regs_column_count = 1;
 774           win_info->detail.data_display_info.display_regs = FALSE;
 775           win_info->generic.content = NULL;
 776           win_info->generic.content_size = 0;
 777         }
 778       break;
 779     default:
 780       break;
 781     }
 782   if (win_info->generic.handle != (WINDOW *) NULL)
 783     {
 784       tui_delete_win (win_info->generic.handle);
 785       win_info->generic.handle = (WINDOW *) NULL;
 786       tui_free_win_content (&win_info->generic);
 787     }
 788   if (win_info->generic.title)
 789     xfree (win_info->generic.title);
 790   xfree (win_info);
 791 }
 792
 793
 794 void
 795 tui_free_all_source_wins_content (void)
 796 {
 797   int i;
 798
 799   for (i = 0; i < (tui_source_windows ())->count; i++)
 800     {
 801       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 802
 803       if (win_info != NULL)
 804         {
 805           tui_free_win_content (&(win_info->generic));
 806           tui_free_win_content (win_info->detail.source_info.execution_info);
 807         }
 808     }
 809 }
 810
 811
 812 void
 813 tui_free_win_content (struct tui_gen_win_info *win_info)
 814 {
 815   if (win_info->content != NULL)
 816     {
 817       free_content ((tui_win_content) win_info->content,
 818                    win_info->content_size,
 819                    win_info->type);
 820       win_info->content = NULL;
 821     }
 822   win_info->content_size = 0;
 823 }
 824
 825
 826 void
 827 tui_del_data_windows (tui_win_content content,
 828                       int content_size)
 829 {
 830   int i;
 831
 832   /* Remember that data window content elements are of type struct
 833      tui_gen_win_info *, each of which whose single element is a data
 834      element.  */
 835   for (i = 0; i < content_size; i++)
 836     {
 837       struct tui_gen_win_info *generic_win
 838         = &content[i]->which_element.data_window;
 839
 840       if (generic_win != (struct tui_gen_win_info *) NULL)
 841         {
 842           tui_delete_win (generic_win->handle);
 843           generic_win->handle = (WINDOW *) NULL;
 844           generic_win->is_visible = FALSE;
 845         }
 846     }
 847 }
 848
 849
 850 void
 851 tui_free_data_content (tui_win_content content,
 852                        int content_size)
 853 {
 854   int i;
 855
 856   /* Remember that data window content elements are of type struct
 857      tui_gen_win_info *, each of which whose single element is a data
 858      element.  */
 859   for (i = 0; i < content_size; i++)
 860     {
 861       struct tui_gen_win_info *generic_win
 862         = &content[i]->which_element.data_window;
 863
 864       if (generic_win != (struct tui_gen_win_info *) NULL)
 865         {
 866           tui_delete_win (generic_win->handle);
 867           generic_win->handle = (WINDOW *) NULL;
 868           tui_free_win_content (generic_win);
 869         }
 870     }
 871   free_content (content,
 872                 content_size,
 873                 DATA_WIN);
 874 }
 875
 876
 877 /**********************************
 878 ** LOCAL STATIC FUNCTIONS        **
 879 **********************************/
 880
 881
 882 static void
 883 free_content (tui_win_content content,
 884               int content_size,
 885               enum tui_win_type win_type)
 886 {
 887   if (content != (tui_win_content) NULL)
 888     {
 889       free_content_elements (content, content_size, win_type);
 890       xfree (content);
 891     }
 892 }
 893
 894
 895 /* free_content_elements().
 896  */
 897 static void
 898 free_content_elements (tui_win_content content,
 899                        int content_size,
 900                        enum tui_win_type type)
 901 {
 902   if (content != (tui_win_content) NULL)
 903     {
 904       int i;
 905
 906       if (type == SRC_WIN || type == DISASSEM_WIN)
 907         {
 908           /* Free whole source block.  */
 909           xfree (content[0]->which_element.source.line);
 910         }
 911       else
 912         {
 913           for (i = 0; i < content_size; i++)
 914             {
 915               struct tui_win_element *element;
 916
 917               element = content[i];
 918               if (element != (struct tui_win_element *) NULL)
 919                 {
 920                   switch (type)
 921                     {
 922                     case DATA_WIN:
 923                       xfree (element);
 924                       break;
 925                     case DATA_ITEM_WIN:
 926                       /* Note that data elements are not allocated in
 927                          a single block, but individually, as
 928                          needed.  */
 929                       if (element->which_element.data.type != TUI_REGISTER)
 930                         xfree ((void *)element->which_element.data.name);
 931                       xfree (element->which_element.data.value);
 932                       xfree (element->which_element.data.content);
 933                       xfree (element);
 934                       break;
 935                     case CMD_WIN:
 936                       xfree (element->which_element.command.line);
 937                       break;
 938                     default:
 939                       break;
 940                     }
 941                 }
 942             }
 943         }
 944       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 945         xfree (content[0]);     /* Free the element block.  */
 946     }
 947 }