iverilog/ivtest/vpi/pokevent.cc

134 lines
3.3 KiB
C++

/*
* Copyright (c) 2002 Michael Ruff (mruff at chiaro.com)
* Michael Runyan (mrunyan 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
*/
/*
* This test verifies named events can be peeked and poked.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "vpi_user.h"
extern "C" PLI_INT32
CallbackPeek(s_cb_data *data) {
static s_vpi_time zero_delay = { vpiNoDelay, 0, 0, 0 };
vpi_printf(" callback\n");
// Toggle poke event
vpiHandle poke_e = *(vpiHandle *)data->user_data;
vpi_put_value(poke_e, NULL, &zero_delay, vpiInertialDelay);
return 0;
}
static vpiHandle
FindPoke(const char *name)
{
vpiHandle module, iterate, handle;
// get top module handle
iterate = vpi_iterate(vpiModule, NULL);
if (iterate == NULL) return NULL;
module = vpi_scan(iterate);
vpi_free_object(iterate);
// find named event
handle = NULL;
iterate = vpi_iterate(vpiNamedEvent, module);
if (iterate != NULL) {
while ((handle = vpi_scan(iterate))) {
if (!strcmp(name, vpi_get_str(vpiName, handle))) {
vpi_free_object(iterate);
break;
}
}
}
return handle;
}
static void
RegisterPeek(const char *name, vpiHandle poke)
{
vpiHandle module, iterate, handle;
s_cb_data vc_cb_data;
static vpiHandle user_data = poke;
// get top module handle
iterate = vpi_iterate(vpiModule, NULL);
if (iterate == NULL) return;
module = vpi_scan(iterate);
vpi_free_object(iterate);
// find named event
handle = NULL;
iterate = vpi_iterate(vpiNamedEvent, module);
if (iterate != NULL) {
while ((handle = vpi_scan(iterate))) {
if (!strcmp(name, vpi_get_str(vpiName, handle))) {
vpi_free_object(iterate);
break;
}
}
}
// Register callback
vc_cb_data.time = NULL;
vc_cb_data.value = NULL;
vc_cb_data.user_data = (char *)&user_data;
vc_cb_data.obj = handle;
vc_cb_data.reason = cbValueChange;
vc_cb_data.cb_rtn = CallbackPeek;
vpi_register_cb(&vc_cb_data);
}
extern "C" PLI_INT32
EndofCompile(s_cb_data * /*cb_data*/)
{
RegisterPeek("e_Peek", FindPoke("e_Poke"));
return 0;
}
extern "C" void my_Register(void)
{
s_cb_data cb_data;
vpi_printf("!!!C++: Registering Callbacks\n");
cb_data.time = NULL;
cb_data.value = NULL;
cb_data.user_data = (char *) NULL;
cb_data.obj = NULL;
cb_data.reason = cbEndOfCompile;
cb_data.cb_rtn = EndofCompile;
vpi_register_cb(&cb_data);
}
#ifdef __SUNPRO_CC
extern "C"
#endif
void (*vlog_startup_routines[]) () = {
my_Register,
0
};