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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright (c) 2017-2019 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 interface.c
* \brief Implementation of interface base class.
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <hicn/facemgr/facelet.h>
#include <hicn/facemgr/loop.h> /* *_callback_data_t */
#include <hicn/util/map.h>
#include "interface.h"
TYPEDEF_MAP_H(interface_ops_map, const char *, const interface_ops_t *);
TYPEDEF_MAP(interface_ops_map, const char *, const interface_ops_t *, strcmp, string_snprintf, generic_snprintf);
static interface_ops_map_t * interface_ops_map = NULL;
int
interface_register(const interface_ops_t * ops)
{
if (!interface_ops_map) {
interface_ops_map = interface_ops_map_create();
if (!interface_ops_map)
return -1;
}
interface_ops_map_add(interface_ops_map, ops->type, ops);
return 0;
}
int
interface_unregister_all()
{
int ret = 0;
const char ** ops_name_array = NULL;
int n = interface_ops_map_get_key_array(interface_ops_map, &ops_name_array);
if (n < 0) {
ERROR("[interface_unregister_all] Could not get interface ops array");
return -1;
}
for (unsigned i = 0; i < n; i++) {
const char * ops_name = ops_name_array[i];
if (interface_ops_map_remove(interface_ops_map, ops_name, NULL) < 0) {
ERROR("[interface_unregister_all] Could not remove %s from interface ops map", ops_name);
ret = -1;
}
}
free(ops_name_array);
interface_ops_map_free(interface_ops_map);
interface_ops_map = NULL;
return ret;
}
interface_t *
interface_create(const char * name, const char * type)
{
const interface_ops_t * ops = NULL;
int rc = interface_ops_map_get(interface_ops_map, type, &ops);
if (rc < 0) {
printf("Interface type not found %s\n", type);
return NULL;
}
interface_t * interface = malloc(sizeof(interface_t));
if (!interface)
return NULL;
interface->name = strdup(name);
/* this should use type */
interface->ops = ops;
interface->callback = NULL;
interface->callback_owner = NULL;
interface->data = NULL;
return interface;
}
void
interface_free(interface_t * interface)
{
free(interface->name);
free(interface);
}
void
interface_set_callback(interface_t * interface, void * callback_owner,
interface_cb_t callback)
{
interface->callback = callback;
interface->callback_owner = callback_owner;
}
int
interface_initialize(interface_t * interface, void * cfg)
{
if (!interface->ops->initialize)
return -1;
return interface->ops->initialize(interface, cfg);
}
int
interface_finalize(interface_t * interface)
{
if (!interface->ops->finalize)
return -1;
return interface->ops->finalize(interface);
}
int
interface_on_event(interface_t * interface, facelet_t * facelet)
{
if (!interface->ops->on_event)
return -1;
return interface->ops->on_event(interface, facelet);
}
int
interface_raise_event(interface_t * interface, facelet_t * facelet)
{
assert(interface->callback);
return interface->callback(interface->callback_owner,
INTERFACE_CB_TYPE_RAISE_EVENT, facelet);
}
int
interface_register_fd(interface_t * interface, int fd, void * data)
{
assert(interface->callback);
fd_callback_data_t fd_callback = {
.fd = fd,
.owner = interface,
.callback = (fd_callback_t)interface->ops->callback,
.data = data,
};
return interface->callback(interface->callback_owner,
INTERFACE_CB_TYPE_REGISTER_FD, &fd_callback);
}
int
interface_unregister_fd(interface_t * interface, int fd)
{
assert(interface->callback);
fd_callback_data_t fd_callback = {
.fd = fd,
.owner = interface,
.callback = NULL,
.data = NULL,
};
return interface->callback(interface->callback_owner,
INTERFACE_CB_TYPE_UNREGISTER_FD, &fd_callback);
}
typedef int (*interface_fd_callback_t)(interface_t * interface, int fd, void * unused);
int
interface_register_timer(interface_t * interface, unsigned delay_ms,
interface_fd_callback_t callback, void * data)
{
assert(interface->callback);
timer_callback_data_t timer_callback = {
.delay_ms = delay_ms,
.owner = interface,
.callback = (fd_callback_t)callback,
.data = data,
};
int rc = interface->callback(interface->callback_owner,
INTERFACE_CB_TYPE_REGISTER_TIMER, &timer_callback);
return rc;
}
int
interface_unregister_timer(interface_t * interface, int fd)
{
assert(interface->callback);
return interface->callback(interface->callback_owner,
INTERFACE_CB_TYPE_UNREGISTER_TIMER, &fd);
}
|
