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- /* Copyright (C) 1991, 1992 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* save.h */
- /* Interface to Ghostscript save/restore machinery */
-
- /* Store checking / change saving */
- extern int alloc_save_new_mask; /* l_new if in save, 0 if not */
- extern int alloc_save_test_mask; /* 0 if in save, -1 if not */
- int alloc_array(P4(ref *paref, uint attrs, uint num_refs, const char *client_name));
- void alloc_free_array(P2(ref *paref, const char *client_name));
- int alloc_save_change(P2(ref *ptr, const char *client_name));
-
- /* Save and restore state */
- typedef struct alloc_save_s alloc_save;
- typedef struct alloc_change_s alloc_change;
- alloc_save *alloc_save_state(P0()); /* 0 if can't alloc save block */
- int alloc_save_level(P0());
- int alloc_is_since_save(P2(const char *, const alloc_save *));
- int alloc_name_is_since_save(P2(const ref *, const alloc_save *));
- int alloc_restore_state_check(P1(const alloc_save *)); /* 0 if OK, <0 if not */
- void alloc_restore_state(P1(alloc_save *));
- /* Release all memory -- like doing a restore "past the bottom". */
- void alloc_restore_all(P0());
-