112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
/*
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* Copyright (c) 1999-2001 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CVS_IDENT
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#ident "$Id: vpi_iter.cc,v 1.5 2002/08/12 01:35:09 steve Exp $"
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#endif
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/*
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* Find here the methods functions in support of iterator objects.
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*/
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# include "vpi_priv.h"
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# include <stdlib.h>
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# include <assert.h>
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static int iterator_free_object(vpiHandle ref)
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{
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struct __vpiIterator*hp = (struct __vpiIterator*)ref;
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assert(ref->vpi_type->type_code == vpiIterator);
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if (hp->free_args_flag)
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free(hp->args);
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free(hp);
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return 0;
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}
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static const struct __vpirt vpip_iterator_rt = {
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vpiIterator,
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0, // vpi_get_
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0, // vpi_get_str_
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0, // vpi_get_value_
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0, // vpi_put_value_
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0, // handle_
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0, // iterate_
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0, // index_
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&iterator_free_object
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};
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vpiHandle vpip_make_iterator(unsigned nargs, vpiHandle*args,
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bool free_args_flag)
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{
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struct __vpiIterator*res = (struct __vpiIterator*)
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calloc(1, sizeof(struct __vpiIterator));
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res->base.vpi_type = &vpip_iterator_rt;
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res->args = args;
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res->nargs = nargs;
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res->next = 0;
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res->free_args_flag = free_args_flag;
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return &(res->base);
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}
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/*
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* The vpi_scan function only applies to iterators. It returns the
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* next vpiHandle in the iterated list.
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*/
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vpiHandle vpi_scan(vpiHandle ref)
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{
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struct __vpiIterator*hp = (struct __vpiIterator*)ref;
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assert(ref);
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assert(ref->vpi_type->type_code == vpiIterator);
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if (ref->vpi_type->index_)
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return (ref->vpi_type->index_(ref, 0));
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if (hp->next == hp->nargs) {
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vpi_free_object(ref);
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return 0;
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}
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return hp->args[hp->next++];
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}
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/*
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* $Log: vpi_iter.cc,v $
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* Revision 1.5 2002/08/12 01:35:09 steve
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* conditional ident string using autoconfig.
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*
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* Revision 1.4 2002/06/02 19:05:50 steve
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* Check for null pointers from users.
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*
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* Revision 1.3 2002/05/03 15:44:11 steve
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* Add vpiModule iterator to vpiScope objects.
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*
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* Revision 1.2 2001/05/08 23:59:33 steve
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* Add ivl and vvp.tgt support for memories in
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* expressions and l-values. (Stephan Boettcher)
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*
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* Revision 1.1 2001/03/16 01:44:34 steve
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* Add structures for VPI support, and all the %vpi_call
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* instruction. Get linking of VPI modules to work.
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*
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*/
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