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a_next.c
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a_next.c
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/*
* Copyright (c) 2003-2009 Michael Ruff (mruff at chiaro.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <stdio.h>
#include <acc_user.h>
#include <vpi_user.h>
#include "priv.h"
/*
* acc_next and friends implemented using VPI
*/
handle acc_next(PLI_INT32 *type, handle scope, handle prev)
{
vpiHandle iter, hand = 0;
/* trace */
if (pli_trace) {
PLI_INT32 *ip;
fprintf(pli_trace, "acc_next(%p <", type);
for (ip = type; *ip; ip++) {
fprintf(pli_trace, "%s%d", ip != type ? "," : "", (int)*ip);
}
fprintf(pli_trace, ">, %p", scope);
if (scope)
fprintf(pli_trace, " \"%s\"", vpi_get_str(vpiName, scope));
fprintf(pli_trace, ", %p", prev);
if (prev)
fprintf(pli_trace, " \"%s\"", vpi_get_str(vpiName, prev));
else
fprintf(pli_trace, ")");
fflush(pli_trace);
}
/*
* The acc_next_* functions need to be reentrant, so we need to
* rescan all the items up to the previous one, then return
* the next one.
*/
iter = vpi_iterate(vpiScope, scope); /* ICARUS extension */
if (prev) {
while ((hand = vpi_scan(iter))) {
if (hand == prev) break;
}
}
/* scan for next */
if (!prev || hand) {
while ((hand = vpi_scan(iter))) {
if (acc_object_in_typelist(hand, type))
break;
}
}
/* don't leak iterators */
if (hand) vpi_free_object(iter);
/* trace */
if (pli_trace) {
fprintf(pli_trace, " --> %p", hand);
if (hand)
fprintf(pli_trace, " \"%s\"\n", vpi_get_str(vpiName, hand));
else
fprintf(pli_trace, "\n");
}
return hand;
}
handle acc_next_scope(handle scope, handle prev)
{
PLI_INT32 type[2] = {accScope, 0};
return acc_next(type, scope, prev);
}