| 2 |
- |
1 |
/* Copyright (C) 1992, 1993, 1998 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: gsuid.h,v 1.6 2002/06/19 01:06:12 lpd Exp $ */
|
|
|
18 |
/* Unique id definitions for Ghostscript */
|
|
|
19 |
|
|
|
20 |
#ifndef gsuid_INCLUDED
|
|
|
21 |
# define gsuid_INCLUDED
|
|
|
22 |
|
|
|
23 |
/* A unique id (uid) may be either a UniqueID or an XUID. */
|
|
|
24 |
/* (XUIDs are a Level 2 feature.) */
|
|
|
25 |
#ifndef gs_uid_DEFINED
|
|
|
26 |
# define gs_uid_DEFINED
|
|
|
27 |
typedef struct gs_uid_s gs_uid;
|
|
|
28 |
#endif
|
|
|
29 |
struct gs_uid_s {
|
|
|
30 |
/* id >= 0 is a UniqueID, xvalues is 0. */
|
|
|
31 |
/* id < 0 is an XUID, size of xvalues is -id. */
|
|
|
32 |
long id;
|
|
|
33 |
long *xvalues;
|
|
|
34 |
};
|
|
|
35 |
|
|
|
36 |
/*
|
|
|
37 |
* A UniqueID of no_UniqueID is an indication that there is no uid.
|
|
|
38 |
* Since we sometimes use gs_ids as UniqueIDs, we want to choose as large
|
|
|
39 |
* a (positive) value as possible for no_UniqueID.
|
|
|
40 |
*/
|
|
|
41 |
#define no_UniqueID max_long
|
|
|
42 |
#define uid_is_valid(puid)\
|
|
|
43 |
((puid)->id != no_UniqueID)
|
|
|
44 |
#define uid_set_invalid(puid)\
|
|
|
45 |
((puid)->id = no_UniqueID, (puid)->xvalues = 0)
|
|
|
46 |
#define uid_is_UniqueID(puid)\
|
|
|
47 |
(((puid)->id & ~0xffffff) == 0)
|
|
|
48 |
#define uid_is_XUID(puid)\
|
|
|
49 |
((puid)->id < 0)
|
|
|
50 |
|
|
|
51 |
/* Initialize a uid. */
|
|
|
52 |
#define uid_set_UniqueID(puid, idv)\
|
|
|
53 |
((puid)->id = idv, (puid)->xvalues = 0)
|
|
|
54 |
#define uid_set_XUID(puid, pvalues, siz)\
|
|
|
55 |
((puid)->id = -(long)(siz), (puid)->xvalues = pvalues)
|
|
|
56 |
|
|
|
57 |
/* Get the size and the data of an XUID. */
|
|
|
58 |
#define uid_XUID_size(puid) ((uint)(-(puid)->id))
|
|
|
59 |
#define uid_XUID_values(puid) ((puid)->xvalues)
|
|
|
60 |
|
|
|
61 |
/* Compare two uids for equality. */
|
|
|
62 |
/* This could be a macro, but the Zortech compiler compiles it wrong. */
|
|
|
63 |
bool uid_equal(const gs_uid *, const gs_uid *); /* in gsutil.c */
|
|
|
64 |
|
|
|
65 |
/* Copy the XUID data for a uid, if needed, updating the uid in place. */
|
|
|
66 |
int uid_copy(gs_uid *puid, gs_memory_t *mem, client_name_t cname);
|
|
|
67 |
|
|
|
68 |
/* Free the XUID array of a uid if necessary. */
|
|
|
69 |
#define uid_free(puid, mem, cname)\
|
|
|
70 |
gs_free_object(mem, (puid)->xvalues, cname)
|
|
|
71 |
|
|
|
72 |
#endif /* gsuid_INCLUDED */
|