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/*
* Copyright (c) 2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* \file strategy.h
* \brief hICN forwarding strategy
*/
#ifndef HICNLIGHT_STRATEGY_H
#define HICNLIGHT_STRATEGY_H
#include "../strategies/load_balancer.h"
#include "../strategies/low_latency.h"
#include "../strategies/random.h"
typedef enum {
STRATEGY_TYPE_UNDEFINED,
STRATEGY_TYPE_LOADBALANCER,
STRATEGY_TYPE_LOW_LATENCY,
STRATEGY_TYPE_RANDOM,
STRATEGY_TYPE_N
} strategy_type_t;
#define STRATEGY_TYPE_VALID(type) \
((type != STRATEGY_TYPE_UNDEFINED) && (type != STRATEGY_TYPE_N))
typedef union {
strategy_load_balancer_options_t load_balancer;
strategy_low_latency_options_t low_latency;
strategy_random_options_t random;
} strategy_options_t;
typedef union {
strategy_load_balancer_nexthop_state_t load_balancer;
strategy_low_latency_nexthop_state_t low_latency;
strategy_random_nexthop_state_t random;
} strategy_nexthop_state_t;
#define STRATEGY_NEXTHOP_STATE_EMPTY {{ 0 }}
typedef union {
strategy_load_balancer_state_t load_balancer;
strategy_low_latency_state_t low_latency;
strategy_random_state_t random;
} strategy_state_t;
// XXX This has to be merged with nexthops
// XXX How to avoid errors due to pool id reuse (eg on_data) ?
typedef struct {
strategy_type_t type;
strategy_options_t options;
strategy_state_t state;
} strategy_entry_t;
#endif /* HICNLIGHT_STRATEGY_H */
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