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/*
* Copyright (c) 2018-2021, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit 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 dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "filter/split.h"
#include "core/assert.h"
static core_log_t _log = LOG_T_INIT("filter.split");
static filter_split_t _defaults = {
LOG_T_INIT_OBJ("filter.split"),
FILTER_SPLIT_MODE_ROUNDROBIN, 0, 0, 0
};
core_log_t* filter_split_log()
{
return &_log;
}
void filter_split_init(filter_split_t* self)
{
mlassert_self();
*self = _defaults;
}
void filter_split_destroy(filter_split_t* self)
{
filter_split_recv_t* r;
mlassert_self();
if (self->recv_last)
self->recv_last->next = 0;
while ((r = self->recv_first)) {
self->recv_first = r->next;
free(r);
}
}
void filter_split_add(filter_split_t* self, core_receiver_t recv, void* ctx)
{
filter_split_recv_t* r;
mlassert_self();
lassert(recv, "recv is nil");
lfatal_oom(r = malloc(sizeof(filter_split_recv_t)));
r->recv = recv;
r->ctx = ctx;
if (self->recv_last) {
self->recv_last->next = r;
r->next = self->recv_first;
self->recv_first = r;
} else {
self->recv_first = self->recv = self->recv_last = r;
r->next = r;
}
}
static void _roundrobin(filter_split_t* self, const core_object_t* obj)
{
mlassert_self();
self->recv->recv(self->recv->ctx, obj);
self->recv = self->recv->next;
}
static void _sendall(filter_split_t* self, const core_object_t* obj)
{
filter_split_recv_t* r;
mlassert_self();
for (r = self->recv_first; r; r = r->next) {
r->recv(r->ctx, obj);
if (r == self->recv_last)
break;
}
}
core_receiver_t filter_split_receiver(filter_split_t* self)
{
mlassert_self();
if (!self->recv) {
lfatal("no receiver(s) set");
}
switch (self->mode) {
case FILTER_SPLIT_MODE_ROUNDROBIN:
return (core_receiver_t)_roundrobin;
case FILTER_SPLIT_MODE_SENDALL:
return (core_receiver_t)_sendall;
default:
lfatal("invalid split mode");
}
return 0;
}
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