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/*
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 * Copyright (c) 2002-2006 The TenDRA Project <http://www.tendra.org/>.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 * 3. Neither the name of The TenDRA Project nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific, prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
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 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * $Id$
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 */
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/*
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    		 Crown Copyright (c) 1997
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    This TenDRA(r) Computer Program is subject to Copyright
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    owned by the United Kingdom Secretary of State for Defence
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    acting through the Defence Evaluation and Research Agency
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    (DERA).  It is made available to Recipients with a
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    royalty-free licence for its use, reproduction, transfer
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    to other parties and amendment for any purpose not excluding
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    product development provided that any such use et cetera
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    shall be deemed to be acceptance of the following conditions:-
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        (1) Its Recipients shall ensure that this Notice is
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        reproduced upon any copies or amended versions of it;
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        (2) Any amended version of it shall be clearly marked to
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        show both the nature of and the organisation responsible
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        for the relevant amendment or amendments;
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        (3) Its onward transfer from a recipient to another
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        party shall be deemed to be that party's acceptance of
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        these conditions;
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        (4) DERA gives no warranty or assurance as to its
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        quality or suitability for any purpose and DERA accepts
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        no liability whatsoever in relation to any use to which
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        it may be put.
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*/
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/*** map-entry.c --- Mapping table entry ADT.
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 *
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 ** Author: Steve Folkes <smf@hermes.mod.uk>
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 *
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 *** Commentary:
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 *
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 * This file implements the mapping table entry routines used by the TDF
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 * linker.
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 *
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 *** Change Log:
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 * $Log: map-entry.c,v $
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 * Revision 1.1.1.1  1998/01/17  15:57:18  release
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 * First version to be checked into rolling release.
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 *
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 * Revision 1.3  1995/09/22  08:39:21  smf
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 * Fixed problems with incomplete structures (to shut "tcc" up).
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 * Fixed some problems in "name-key.c" (no real problems, but rewritten to
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 * reduce the warnings that were output by "tcc" and "gcc").
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 * Fixed bug CR95_354.tld-common-id-problem (library capsules could be loaded
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 * more than once).
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 *
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 * Revision 1.2  1994/12/12  11:46:27  smf
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 * Performing changes for 'CR94_178.sid+tld-update' - bringing in line with
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 * OSSG C Coding Standards.
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 *
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 * Revision 1.1.1.1  1994/07/25  16:03:32  smf
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 * Initial import of TDF linker 3.5 non shared files.
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 *
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**/
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/****************************************************************************/
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#include "map-entry.h"
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#include "shape-table.h"
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#include "solve-cycles.h"
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/*--------------------------------------------------------------------------*/
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MapEntryP
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map_entry_create(NStringP  key,			  MapEntryP next,
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			  unsigned  count)
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{
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    MapEntryP entry = ALLOCATE(MapEntryT);
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    entry->next  = next;
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    nstring_copy(& (entry->key), key);
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    entry->count = count;
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    return(entry);
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}
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MapEntryP
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map_entry_next(MapEntryP entry)
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{
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    return(entry->next);
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}
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NStringP
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map_entry_key(MapEntryP entry)
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{
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    return(& (entry->key));
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}
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void
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map_entry_set_num_links(MapEntryP entry,				 unsigned  num_links)
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{
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    entry->num_links = num_links;
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    entry->links     = ALLOCATE_VECTOR(MapLinkT, num_links);
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}
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void
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map_entry_set_link(MapEntryP entry,			    unsigned  link,
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			    unsigned  internal,
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			    unsigned  external)
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{
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    ASSERT(link < entry->num_links);
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    entry->links[link].internal = internal;
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    entry->links[link].external = external;
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}
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unsigned
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map_entry_get_count(MapEntryP entry)
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{
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    return(entry->count);
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}
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unsigned
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map_entry_get_num_links(MapEntryP entry)
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{
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    return(entry->num_links);
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}
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void
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map_entry_get_link(MapEntryP entry,			    unsigned  link,
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			    unsigned *internal_ref,
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			    unsigned *external_ref)
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{
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    ASSERT(link < entry->num_links);
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    *internal_ref = entry->links[link].internal;
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    *external_ref = entry->links[link].external;
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}
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/*--------------------------------------------------------------------------*/
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void
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map_entry_check_non_empty(MapEntryP entry,				   GenericP  gclosure)
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{
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    ShapeTableP table = (ShapeTableP)gclosure;
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    if (entry->count > 0) {
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	NStringP    key         = map_entry_key(entry);
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	ShapeEntryP shape_entry = shape_table_get(table, key);
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	shape_entry_set_non_empty(shape_entry);
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    }
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}
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/*
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 * Local variables(smf):
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 * eval: (include::add-path-entry "../os-interface" "../library")
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 * eval: (include::add-path-entry "../generated")
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 * end:
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**/