UbixOS V2 2.0

snmp_threadsync.h
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1
6 /*
7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * This file is part of the lwIP TCP/IP stack.
33 *
34 * Author: Dirk Ziegelmeier <dziegel@gmx.de>
35 *
36 */
37
38 #ifndef LWIP_HDR_APPS_SNMP_THREADSYNC_H
39 #define LWIP_HDR_APPS_SNMP_THREADSYNC_H
40
41 #include "lwip/apps/snmp_opts.h"
42
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46
47 #if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
48
49 #include "lwip/apps/snmp_core.h"
50 #include "lwip/sys.h"
51
52 typedef void (*snmp_threadsync_called_fn)(void* arg);
53 typedef void (*snmp_threadsync_synchronizer_fn)(snmp_threadsync_called_fn fn, void* arg);
54
55
57 struct threadsync_data
58 {
59 union {
60 snmp_err_t err;
61 s16_t s16;
62 } retval;
63 union {
64 const u32_t *root_oid;
65 void *value;
66 } arg1;
67 union {
68 u8_t root_oid_len;
69 u16_t len;
70 } arg2;
71 const struct snmp_threadsync_node *threadsync_node;
72 struct snmp_node_instance proxy_instance;
73 };
74
76 struct snmp_threadsync_instance
77 {
78 sys_sem_t sem;
79 sys_mutex_t sem_usage_mutex;
80 snmp_threadsync_synchronizer_fn sync_fn;
81 struct threadsync_data data;
82 };
83
85 struct snmp_threadsync_node
86 {
87 /* inherited "base class" members */
88 struct snmp_leaf_node node;
89
90 const struct snmp_leaf_node *target;
91 struct snmp_threadsync_instance *instance;
92 };
93
94 snmp_err_t snmp_threadsync_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
95 snmp_err_t snmp_threadsync_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance);
96
98 #define SNMP_CREATE_THREAD_SYNC_NODE(oid, target_leaf_node, threadsync_instance) \
99 {{{ SNMP_NODE_THREADSYNC, (oid) }, \
100 snmp_threadsync_get_instance, \
101 snmp_threadsync_get_next_instance }, \
102 (target_leaf_node), \
103 (threadsync_instance) }
104
106 void snmp_threadsync_init(struct snmp_threadsync_instance *instance, snmp_threadsync_synchronizer_fn sync_fn);
107
108 #endif /* LWIP_SNMP */
109
110 #ifdef __cplusplus
111 }
112 #endif
113
114 #endif /* LWIP_HDR_APPS_SNMP_THREADSYNC_H */
s16_t
int16_t s16_t
Definition: arch.h:125
u16_t
uint16_t u16_t
Definition: arch.h:124
u32_t
uint32_t u32_t
Definition: arch.h:126
sys_sem
Definition: sem.h:36
u8_t
uint8_t u8_t
Definition: arch.h:122
sys_mutex
Definition: sys_arch.h:16