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Annotation of 43BSD/usr.lib/libcurses/delwin.c, revision 1.1.1.1

1.1       root        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: }

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