1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* 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_vft.h
* \brief hICN forwarding strategy VFT
*/
#ifndef HICN_STRATEGY_VFT_H
#define HICN_STRATEGY_VFT_H
#include <hicn/core/strategy.h>
#include <hicn/core/nexthops.h>
/**
* @typedef strategy_ops_t
* @abstract Forwarding strategy implementation
* @constant receiveObject is called when we receive an object and have a
* measured round trip time. This allows a strategy to update its performance
* data.
* @constant lookupNexthop Find the set of nexthops to use for the Interest.
* May be empty, should not be NULL. Must be destroyed.
* @constant addNexthop Add a nexthop to the list of available nexthops with a
* routing protocol-specific cost.
* @constant destroy cleans up the strategy, freeing all memory and state. A
* strategy is reference counted, so the final destruction only happens after
* the last reference is released.
* @discussion <#Discussion#>
*/
typedef struct {
const char * name;
void (*initialize)(strategy_entry_t * entry);
void (*finalize)(strategy_entry_t * entry);
nexthops_t * (*lookup_nexthops)(strategy_entry_t * entry, nexthops_t * nexthops,
const msgbuf_t * msgbuf);
void (*add_nexthop)(strategy_entry_t * strategy, unsigned nexthop, strategy_nexthop_state_t * state);
void (*remove_nexthop)(strategy_entry_t * entry, unsigned nexthop, strategy_nexthop_state_t * state);
void (*on_data)(strategy_entry_t * entry, const nexthops_t * nexthops,
const msgbuf_t * msgbuf, Ticks pitEntryCreation, Ticks objReception);
void (*on_timeout)(strategy_entry_t * entry, const nexthops_t * nexthops);
} strategy_ops_t;
extern const strategy_ops_t * const strategy_vft[];
#define DECLARE_STRATEGY(NAME) \
const strategy_ops_t strategy_ ## NAME = { \
.name = #NAME, \
.initialize = strategy_ ## NAME ## _initialize, \
.finalize = strategy_ ## NAME ## _finalize, \
.add_nexthop = strategy_ ## NAME ## _add_nexthop, \
.remove_nexthop = strategy_ ## NAME ## _remove_nexthop, \
.lookup_nexthops = strategy_ ## NAME ## _lookup_nexthops, \
.on_data = strategy_ ## NAME ## _on_data, \
.on_timeout = strategy_ ## NAME ## _on_timeout, \
}
#endif /* HICN_STRATEGY_VFT_H */
|
