1 /* Copyright (C) 1999 Aladdin Enterprises. All rights reserved. 2 3 This software is provided AS-IS with no warranty, either express or 4 implied. 5 6 This software is distributed under license and may not be copied, 7 modified or distributed except as expressly authorized under the terms 8 of the license contained in the file LICENSE in this distribution. 9 10 For more information about licensing, please refer to 11 http://www.ghostscript.com/licensing/. For information on 12 commercial licensing, go to http://www.artifex.com/licensing/ or 13 contact Artifex Software, Inc., 101 Lucas Valley Road #110, 14 San Rafael, CA 94903, U.S.A., +1(415)492-9861. 15 */ 16 17 /* $Id: idosave.h,v 1.5 2002/06/16 04:47:10 lpd Exp $ */ 18 /* Supporting procedures for 'save' recording. */ 19 20 #ifndef idosave_INCLUDED 21 # define idosave_INCLUDED 22 23 /* 24 * Save a change that must be undone by restore. We have to pass the 25 * pointer to the containing object to alloc_save_change for two reasons: 26 * 27 * - We need to know which VM the containing object is in, so we can 28 * know on which chain of saved changes to put the new change. 29 * 30 * - We need to know whether the object is an array of refs (which 31 * includes dictionaries) or a struct, so we can properly trace and 32 * relocate the pointer to it from the change record during garbage 33 * collection. 34 */ 35 int alloc_save_change(gs_dual_memory_t *dmem, const ref *pcont, 36 ref_packed *ptr, client_name_t cname); 37 int alloc_save_change_in(gs_ref_memory_t *mem, const ref *pcont, 38 ref_packed *ptr, client_name_t cname); 39 40 #endif /* idosave_INCLUDED */ 41