4.3BSD - /usr/src/usr.lib/libcurses/delwin.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: static char sccsid[] = "@(#)delwin.c	5.1 (Berkeley) 6/7/85";
   9: #endif not lint
  10: 
  11: # include   "curses.ext"
  12: 
  13: /*
  14:  *	This routine deletes a window and releases it back to the system.
  15:  *
  16:  */
  17: delwin(win)
  18: reg WINDOW  *win; {
  19: 
  20:     reg int     i;
  21:     reg WINDOW  *wp, *np;
  22: 
  23:     if (win->_orig == NULL) {
  24:         /*
  25: 		 * If we are the original window, delete the space for
  26: 		 * all the subwindows, and the array of space as well.
  27: 		 */
  28:         for (i = 0; i < win->_maxy && win->_y[i]; i++)
  29:             free(win->_y[i]);
  30:         free(win->_firstch);
  31:         free(win->_lastch);
  32:         wp = win->_nextp;
  33:         while (wp != win) {
  34:             np = wp->_nextp;
  35:             delwin(wp);
  36:             wp = np;
  37:         }
  38:     }
  39:     else {
  40:         /*
  41: 		 * If we are a subwindow, take ourselves out of the
  42: 		 * list.  NOTE: if we are a subwindow, the minimum list
  43: 		 * is orig followed by this subwindow, so there are
  44: 		 * always at least two windows in the list.
  45: 		 */
  46:         for (wp = win->_nextp; wp->_nextp != win; wp = wp->_nextp)
  47:             continue;
  48:         wp->_nextp = win->_nextp;
  49:     }
  50:     free(win->_y);
  51:     free(win);
  52: }

Defined functions

Defined variables