145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
/*
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* Copyright (c) 2002-2009 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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# include "compile.h"
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# include "vpi_priv.h"
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# include <stdio.h>
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#ifdef HAVE_MALLOC_H
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# include <malloc.h>
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#endif
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# include <stdlib.h>
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# include <string.h>
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# include <assert.h>
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static int named_event_get(int code, vpiHandle ref)
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{
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assert((ref->vpi_type->type_code==vpiNamedEvent));
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struct __vpiNamedEvent*obj = (struct __vpiNamedEvent*)ref;
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switch (code) {
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case vpiAutomatic:
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return (int) obj->scope->is_automatic;
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}
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return 0;
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}
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static char* named_event_get_str(int code, vpiHandle ref)
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{
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assert((ref->vpi_type->type_code==vpiNamedEvent));
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struct __vpiNamedEvent*obj = (struct __vpiNamedEvent*)ref;
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if (code == vpiFile) { // Not implemented for now!
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return simple_set_rbuf_str(file_names[0]);
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}
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return generic_get_str(code, &obj->scope->base, obj->name, NULL);
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}
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static vpiHandle named_event_get_handle(int code, vpiHandle ref)
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{
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assert((ref->vpi_type->type_code==vpiNamedEvent));
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struct __vpiNamedEvent*obj = (struct __vpiNamedEvent*)ref;
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switch (code) {
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case vpiScope:
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return &obj->scope->base;
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case vpiModule:
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return vpip_module(obj->scope);
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}
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return 0;
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}
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static const struct __vpirt vpip_named_event_rt = {
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vpiNamedEvent,
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named_event_get,
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named_event_get_str,
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0,
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0,
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named_event_get_handle,
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0,
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0,
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0
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};
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vpiHandle vpip_make_named_event(const char*name, vvp_net_t*funct)
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{
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struct __vpiNamedEvent*obj = (struct __vpiNamedEvent*)
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malloc(sizeof(struct __vpiNamedEvent));
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obj->base.vpi_type = &vpip_named_event_rt;
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obj->name = vpip_name_string(name);
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obj->scope = vpip_peek_current_scope();
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obj->funct = funct;
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obj->callbacks = 0;
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return &obj->base;
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}
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/*
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* This function runs the callbacks for a named event. All the
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* callbacks are listed in the callback member of the event handle,
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* this function scans that list.
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*
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* This also handles the case where the callback has been removed. The
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* vpi_remove_cb doesn't actually remove any callbacks, it marks them
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* as canceled by clearing the cb_rtn function. This function reaps
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* those marked handles when it scans the list.
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*
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* We can not use vpi_free_object() here since it does not really
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* delete the callback.
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*/
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void vpip_run_named_event_callbacks(vpiHandle ref)
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{
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assert((ref->vpi_type->type_code==vpiNamedEvent));
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struct __vpiNamedEvent*obj = (struct __vpiNamedEvent*)ref;
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struct __vpiCallback*next = obj->callbacks;
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struct __vpiCallback*prev = 0;
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while (next) {
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struct __vpiCallback*cur = next;
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next = cur->next;
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if (cur->cb_data.cb_rtn != 0) {
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callback_execute(cur);
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prev = cur;
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} else if (prev == 0) {
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obj->callbacks = next;
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cur->next = 0;
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delete cur;
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} else {
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assert(prev->next == cur);
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prev->next = next;
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cur->next = 0;
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delete cur;
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}
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}
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}
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