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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jiri Svoboda |
2 | * Copyright (c) 2008 Jiri Svoboda |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup trace |
29 | /** @addtogroup trace |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <stdio.h> |
35 | #include <stdio.h> |
36 | #include <stdlib.h> |
36 | #include <stdlib.h> |
37 | #include <ipc/ipc.h> |
37 | #include <ipc/ipc.h> |
38 | #include <libadt/hash_table.h> |
38 | #include <libadt/hash_table.h> |
39 | 39 | ||
40 | #include "proto.h" |
40 | #include "proto.h" |
41 | 41 | ||
42 | #define SRV_PROTO_TABLE_CHAINS 32 |
42 | #define SRV_PROTO_TABLE_CHAINS 32 |
43 | #define METHOD_OPER_TABLE_CHAINS 32 |
43 | #define METHOD_OPER_TABLE_CHAINS 32 |
44 | 44 | ||
45 | hash_table_t srv_proto; |
45 | hash_table_t srv_proto; |
46 | 46 | ||
47 | typedef struct { |
47 | typedef struct { |
48 | int srv; |
48 | int srv; |
49 | proto_t *proto; |
49 | proto_t *proto; |
50 | link_t link; |
50 | link_t link; |
51 | } srv_proto_t; |
51 | } srv_proto_t; |
52 | 52 | ||
53 | typedef struct { |
53 | typedef struct { |
54 | ipcarg_t method; |
54 | ipcarg_t method; |
55 | oper_t *oper; |
55 | oper_t *oper; |
56 | link_t link; |
56 | link_t link; |
57 | } method_oper_t; |
57 | } method_oper_t; |
58 | 58 | ||
59 | static hash_index_t srv_proto_hash(unsigned long key[]); |
59 | static hash_index_t srv_proto_hash(unsigned long key[]); |
60 | static int srv_proto_compare(unsigned long key[], hash_count_t keys, |
60 | static int srv_proto_compare(unsigned long key[], hash_count_t keys, |
61 | link_t *item); |
61 | link_t *item); |
62 | static void srv_proto_remove_callback(link_t *item); |
62 | static void srv_proto_remove_callback(link_t *item); |
63 | 63 | ||
64 | hash_table_operations_t srv_proto_ops = { |
64 | hash_table_operations_t srv_proto_ops = { |
65 | .hash = srv_proto_hash, |
65 | .hash = srv_proto_hash, |
66 | .compare = srv_proto_compare, |
66 | .compare = srv_proto_compare, |
67 | .remove_callback = srv_proto_remove_callback |
67 | .remove_callback = srv_proto_remove_callback |
68 | }; |
68 | }; |
69 | 69 | ||
70 | static hash_index_t method_oper_hash(unsigned long key[]); |
70 | static hash_index_t method_oper_hash(unsigned long key[]); |
71 | static int method_oper_compare(unsigned long key[], hash_count_t keys, |
71 | static int method_oper_compare(unsigned long key[], hash_count_t keys, |
72 | link_t *item); |
72 | link_t *item); |
73 | static void method_oper_remove_callback(link_t *item); |
73 | static void method_oper_remove_callback(link_t *item); |
74 | 74 | ||
75 | hash_table_operations_t method_oper_ops = { |
75 | hash_table_operations_t method_oper_ops = { |
76 | .hash = method_oper_hash, |
76 | .hash = method_oper_hash, |
77 | .compare = method_oper_compare, |
77 | .compare = method_oper_compare, |
78 | .remove_callback = method_oper_remove_callback |
78 | .remove_callback = method_oper_remove_callback |
79 | }; |
79 | }; |
80 | 80 | ||
81 | static hash_index_t srv_proto_hash(unsigned long key[]) |
81 | static hash_index_t srv_proto_hash(unsigned long key[]) |
82 | { |
82 | { |
83 | return key[0] % SRV_PROTO_TABLE_CHAINS; |
83 | return key[0] % SRV_PROTO_TABLE_CHAINS; |
84 | } |
84 | } |
85 | 85 | ||
86 | static int srv_proto_compare(unsigned long key[], hash_count_t keys, |
86 | static int srv_proto_compare(unsigned long key[], hash_count_t keys, |
87 | link_t *item) |
87 | link_t *item) |
88 | { |
88 | { |
89 | srv_proto_t *sp; |
89 | srv_proto_t *sp; |
90 | 90 | ||
91 | sp = hash_table_get_instance(item, srv_proto_t, link); |
91 | sp = hash_table_get_instance(item, srv_proto_t, link); |
92 | 92 | ||
93 | return key[0] == sp->srv; |
93 | return key[0] == sp->srv; |
94 | } |
94 | } |
95 | 95 | ||
96 | static void srv_proto_remove_callback(link_t *item) |
96 | static void srv_proto_remove_callback(link_t *item) |
97 | { |
97 | { |
98 | } |
98 | } |
99 | 99 | ||
100 | static hash_index_t method_oper_hash(unsigned long key[]) |
100 | static hash_index_t method_oper_hash(unsigned long key[]) |
101 | { |
101 | { |
102 | return key[0] % METHOD_OPER_TABLE_CHAINS; |
102 | return key[0] % METHOD_OPER_TABLE_CHAINS; |
103 | } |
103 | } |
104 | 104 | ||
105 | static int method_oper_compare(unsigned long key[], hash_count_t keys, |
105 | static int method_oper_compare(unsigned long key[], hash_count_t keys, |
106 | link_t *item) |
106 | link_t *item) |
107 | { |
107 | { |
108 | method_oper_t *mo; |
108 | method_oper_t *mo; |
109 | 109 | ||
110 | mo = hash_table_get_instance(item, method_oper_t, link); |
110 | mo = hash_table_get_instance(item, method_oper_t, link); |
111 | 111 | ||
112 | return key[0] == mo->method; |
112 | return key[0] == mo->method; |
113 | } |
113 | } |
114 | 114 | ||
115 | static void method_oper_remove_callback(link_t *item) |
115 | static void method_oper_remove_callback(link_t *item) |
116 | { |
116 | { |
117 | } |
117 | } |
118 | 118 | ||
119 | 119 | ||
120 | void proto_init(void) |
120 | void proto_init(void) |
121 | { |
121 | { |
122 | hash_table_create(&srv_proto, SRV_PROTO_TABLE_CHAINS, 1, |
122 | hash_table_create(&srv_proto, SRV_PROTO_TABLE_CHAINS, 1, |
123 | &srv_proto_ops); |
123 | &srv_proto_ops); |
124 | } |
124 | } |
125 | 125 | ||
126 | void proto_cleanup(void) |
126 | void proto_cleanup(void) |
127 | { |
127 | { |
128 | hash_table_destroy(&srv_proto); |
128 | hash_table_destroy(&srv_proto); |
129 | } |
129 | } |
130 | 130 | ||
131 | void proto_register(int srv, proto_t *proto) |
131 | void proto_register(int srv, proto_t *proto) |
132 | { |
132 | { |
133 | srv_proto_t *sp; |
133 | srv_proto_t *sp; |
134 | unsigned long key; |
134 | unsigned long key; |
135 | 135 | ||
136 | sp = malloc(sizeof(srv_proto_t)); |
136 | sp = malloc(sizeof(srv_proto_t)); |
137 | sp->srv = srv; |
137 | sp->srv = srv; |
138 | sp->proto = proto; |
138 | sp->proto = proto; |
139 | key = srv; |
139 | key = srv; |
140 | 140 | ||
141 | hash_table_insert(&srv_proto, &key, &sp->link); |
141 | hash_table_insert(&srv_proto, &key, &sp->link); |
142 | } |
142 | } |
143 | 143 | ||
144 | proto_t *proto_get_by_srv(int srv) |
144 | proto_t *proto_get_by_srv(int srv) |
145 | { |
145 | { |
146 | unsigned long key; |
146 | unsigned long key; |
147 | link_t *item; |
147 | link_t *item; |
148 | srv_proto_t *sp; |
148 | srv_proto_t *sp; |
149 | 149 | ||
150 | key = srv; |
150 | key = srv; |
151 | item = hash_table_find(&srv_proto, &key); |
151 | item = hash_table_find(&srv_proto, &key); |
152 | if (item == NULL) return NULL; |
152 | if (item == NULL) return NULL; |
153 | 153 | ||
154 | sp = hash_table_get_instance(item, srv_proto_t, link); |
154 | sp = hash_table_get_instance(item, srv_proto_t, link); |
155 | return sp->proto; |
155 | return sp->proto; |
156 | } |
156 | } |
157 | 157 | ||
158 | static void proto_struct_init(proto_t *proto, char *name) |
158 | static void proto_struct_init(proto_t *proto, char *name) |
159 | { |
159 | { |
160 | proto->name = name; |
160 | proto->name = name; |
161 | hash_table_create(&proto->method_oper, SRV_PROTO_TABLE_CHAINS, 1, |
161 | hash_table_create(&proto->method_oper, SRV_PROTO_TABLE_CHAINS, 1, |
162 | &method_oper_ops); |
162 | &method_oper_ops); |
163 | } |
163 | } |
164 | 164 | ||
165 | proto_t *proto_new(char *name) |
165 | proto_t *proto_new(char *name) |
166 | { |
166 | { |
167 | proto_t *p; |
167 | proto_t *p; |
168 | 168 | ||
169 | p = malloc(sizeof(proto_t)); |
169 | p = malloc(sizeof(proto_t)); |
170 | proto_struct_init(p, name); |
170 | proto_struct_init(p, name); |
171 | 171 | ||
172 | return p; |
172 | return p; |
173 | } |
173 | } |
174 | 174 | ||
- | 175 | void proto_delete(proto_t *proto) |
|
- | 176 | { |
|
- | 177 | free(proto); |
|
- | 178 | } |
|
- | 179 | ||
175 | void proto_add_oper(proto_t *proto, int method, oper_t *oper) |
180 | void proto_add_oper(proto_t *proto, int method, oper_t *oper) |
176 | { |
181 | { |
177 | method_oper_t *mo; |
182 | method_oper_t *mo; |
178 | unsigned long key; |
183 | unsigned long key; |
179 | 184 | ||
180 | mo = malloc(sizeof(method_oper_t)); |
185 | mo = malloc(sizeof(method_oper_t)); |
181 | mo->method = method; |
186 | mo->method = method; |
182 | mo->oper = oper; |
187 | mo->oper = oper; |
183 | key = method; |
188 | key = method; |
184 | 189 | ||
185 | hash_table_insert(&proto->method_oper, &key, &mo->link); |
190 | hash_table_insert(&proto->method_oper, &key, &mo->link); |
186 | } |
191 | } |
187 | 192 | ||
188 | oper_t *proto_get_oper(proto_t *proto, int method) |
193 | oper_t *proto_get_oper(proto_t *proto, int method) |
189 | { |
194 | { |
190 | unsigned long key; |
195 | unsigned long key; |
191 | link_t *item; |
196 | link_t *item; |
192 | method_oper_t *mo; |
197 | method_oper_t *mo; |
193 | 198 | ||
194 | key = method; |
199 | key = method; |
195 | item = hash_table_find(&proto->method_oper, &key); |
200 | item = hash_table_find(&proto->method_oper, &key); |
196 | if (item == NULL) return NULL; |
201 | if (item == NULL) return NULL; |
197 | 202 | ||
198 | mo = hash_table_get_instance(item, method_oper_t, link); |
203 | mo = hash_table_get_instance(item, method_oper_t, link); |
199 | return mo->oper; |
204 | return mo->oper; |
200 | } |
205 | } |
201 | 206 | ||
202 | static void oper_struct_init(oper_t *oper, char *name) |
207 | static void oper_struct_init(oper_t *oper, char *name) |
203 | { |
208 | { |
204 | oper->name = name; |
209 | oper->name = name; |
205 | } |
210 | } |
206 | 211 | ||
207 | oper_t *oper_new(char *name) |
212 | oper_t *oper_new(char *name) |
208 | { |
213 | { |
209 | oper_t *o; |
214 | oper_t *o; |
210 | 215 | ||
211 | o = malloc(sizeof(oper_t)); |
216 | o = malloc(sizeof(oper_t)); |
212 | oper_struct_init(o, name); |
217 | oper_struct_init(o, name); |
213 | 218 | ||
214 | return o; |
219 | return o; |
215 | } |
220 | } |
216 | 221 | ||
217 | /** @} |
222 | /** @} |
218 | */ |
223 | */ |
219 | 224 |