91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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/*
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* Copyright (c) 1999 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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#if !defined(WINNT)
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#ident "$Id: vpi_callback.c,v 1.1 1999/10/28 00:47:25 steve Exp $"
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#endif
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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 struct __vpirt vpip_callback_rt = {
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vpiCallback,
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0,
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0,
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0,
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0,
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0
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};
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static void vpip_call_callback(void*cp)
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{
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struct __vpiCallback*rfp = (struct __vpiCallback*)cp;
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assert(rfp->base.vpi_type->type_code == vpiCallback);
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rfp->cb_data.cb_rtn(&rfp->cb_data);
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free(rfp);
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}
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/*
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* XXXX This currently does not support (or pay any attention to) the
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* delay parameter. Yikes!
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*/
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vpiHandle vpi_register_cb(p_cb_data data)
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{
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struct __vpiCallback*rfp = calloc(1, sizeof(struct __vpiCallback));
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rfp->base.vpi_type = &vpip_callback_rt;
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rfp->cb_data = *data;
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switch (data->reason) {
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case cbReadOnlySynch:
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assert(data->time);
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assert(data->time->type == vpiSimTime);
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assert(data->time->low == 0);
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assert(data->time->high == 0);
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rfp->ev = vpip_sim_insert_event(0, rfp, vpip_call_callback, 1);
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break;
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default:
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assert(0);
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}
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return &(rfp->base);
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}
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int vpi_remove_cb(vpiHandle ref)
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{
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struct __vpiCallback*rfp = (struct __vpiCallback*)ref;
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assert(ref->vpi_type->type_code == vpiCallback);
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vpip_sim_cancel_event(rfp->ev);
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free(rfp);
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return 0;
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}
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/*
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* $Log: vpi_callback.c,v $
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* Revision 1.1 1999/10/28 00:47:25 steve
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* Rewrite vvm VPI support to make objects more
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* persistent, rewrite the simulation scheduler
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* in C (to interface with VPI) and add VPI support
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* for callbacks.
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*
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*/
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