1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 /*LINTLIBRARY*/ 41 42 #include <stdlib.h> 43 #include <sys/types.h> 44 #include "curses_inc.h" 45 46 /* This routine deletes a _window and releases it back to the system. */ 47 48 int 49 delwin(WINDOW *win) 50 { 51 int i; 52 WINDOW *par; 53 54 /* If we have children don't delte the window. */ 55 if (win->_ndescs > 0) 56 return (ERR); 57 58 /* 59 * If window is a pad, delete the padwin associated with it. 60 * NOTE: We shouldn't care that the recursive call will decrement 61 * ndescs for this window, since the window will be deleted anyhow. 62 */ 63 64 if (win->_padwin) { 65 win->_padwin->_maxy = win->_maxy; 66 (void) delwin(win->_padwin); 67 } 68 if (win->_parent == NULL) { 69 /* Delete all the memory associated with this window. */ 70 for (i = win->_maxy; i-- > 0; ) { 71 free((char *)win->_y[i]); 72 #ifdef _VR3_COMPAT_CODE 73 if (_y16update) 74 free((char *)win->_y16[i]); 75 #endif /* _VR3_COMPAT_CODE */ 76 } 77 } else { 78 /* 79 * We are a subwin and we don't want to delete the memory since 80 * it's shared by other windows. We do want to decrement the 81 * descendant count so that if there are no children left to a 82 * particular window winsdelln.c will run in fast mode (look there). 83 */ 84 for (par = win->_parent; par != NULL; par = par->_parent) 85 par->_ndescs--; 86 } 87 88 #ifdef _VR3_COMPAT_CODE 89 if (_y16update) 90 free((char *)win->_y16); 91 #endif /* _VR3_COMPAT_CODE */ 92 93 free((char *)win->_y); 94 free((char *)win->_firstch); 95 free((char *)win); 96 return (OK); 97 } 98