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- /* Copyright (C) 1992, 1993, 1998 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
- distributor accepts any responsibility for the consequences of using it, or
- for whether it serves any particular purpose or works at all, unless he or
- she says so in writing. Refer to the Aladdin Free Public License (the
- "License") for full details.
-
- Every copy of AFPL Ghostscript must include a copy of the License, normally
- in a plain ASCII text file named PUBLIC. The License grants you the right
- to copy, modify and redistribute AFPL Ghostscript, but only under certain
- conditions described in the License. Among other things, the License
- requires that the copyright notice and this notice be preserved on all
- copies.
- */
-
- /*$Id: gsuid.h,v 1.2 2000/09/19 19:00:33 lpd Exp $ */
- /* Unique id definitions for Ghostscript */
-
- #ifndef gsuid_INCLUDED
- # define gsuid_INCLUDED
-
- /* A unique id (uid) may be either a UniqueID or an XUID. */
- /* (XUIDs are a Level 2 feature.) */
- #ifndef gs_uid_DEFINED
- # define gs_uid_DEFINED
- typedef struct gs_uid_s gs_uid;
-
- #endif
- struct gs_uid_s {
- /* id >= 0 is a UniqueID, xvalues is 0. */
- /* id < 0 is an XUID, size of xvalues is -id. */
- long id;
- long *xvalues;
- };
-
- /*
- * A UniqueID of no_UniqueID is an indication that there is no uid.
- * Since we sometimes use gs_ids as UniqueIDs, we want to choose as large
- * a (positive) value as possible for no_UniqueID.
- */
- #define no_UniqueID max_long
- #define uid_is_valid(puid)\
- ((puid)->id != no_UniqueID)
- #define uid_set_invalid(puid)\
- ((puid)->id = no_UniqueID, (puid)->xvalues = 0)
- #define uid_is_UniqueID(puid)\
- (((puid)->id & ~0xffffff) == 0)
- #define uid_is_XUID(puid)\
- ((puid)->id < 0)
-
- /* Initialize a uid. */
- #define uid_set_UniqueID(puid, idv)\
- ((puid)->id = idv, (puid)->xvalues = 0)
- #define uid_set_XUID(puid, pvalues, siz)\
- ((puid)->id = -(long)(siz), (puid)->xvalues = pvalues)
-
- /* Get the size and the data of an XUID. */
- #define uid_XUID_size(puid) ((uint)(-(puid)->id))
- #define uid_XUID_values(puid) ((puid)->xvalues)
-
- /* Compare two uids for equality. */
- /* This could be a macro, but the Zortech compiler compiles it wrong. */
- bool uid_equal(P2(const gs_uid *, const gs_uid *)); /* in gsutil.c */
-
- /* Free the XUID array of a uid if necessary. */
- #define uid_free(puid, mem, cname)\
- gs_free_object(mem, (puid)->xvalues, cname)
-
- #endif /* gsuid_INCLUDED */
-