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1 | /* |
2 | * net/tipc/server.h: Include file for TIPC server code |
3 | * |
4 | * Copyright (c) 2012-2013, Wind River Systems |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions are met: |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. Neither the names of the copyright holders nor the names of its |
16 | * contributors may be used to endorse or promote products derived from |
17 | * this software without specific prior written permission. |
18 | * |
19 | * Alternatively, this software may be distributed under the terms of the |
20 | * GNU General Public License ("GPL") version 2 as published by the Free |
21 | * Software Foundation. |
22 | * |
23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
24 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
30 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
31 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
32 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
33 | * POSSIBILITY OF SUCH DAMAGE. |
34 | */ |
35 | |
36 | #ifndef _TIPC_SERVER_H |
37 | #define _TIPC_SERVER_H |
38 | |
39 | #include "core.h" |
40 | |
41 | #define TIPC_SERVER_NAME_LEN 32 |
42 | |
43 | /** |
44 | * struct tipc_server - TIPC server structure |
45 | * @conn_idr: identifier set of connection |
46 | * @idr_lock: protect the connection identifier set |
47 | * @idr_in_use: amount of allocated identifier entry |
48 | * @rcvbuf_cache: memory cache of server receive buffer |
49 | * @rcv_wq: receive workqueue |
50 | * @send_wq: send workqueue |
51 | * @max_rcvbuf_size: maximum permitted receive message length |
52 | * @tipc_conn_new: callback will be called when new connection is incoming |
53 | * @tipc_conn_shutdown: callback will be called when connection is shut down |
54 | * @tipc_conn_recvmsg: callback will be called when message arrives |
55 | * @saddr: TIPC server address |
56 | * @name: server name |
57 | * @imp: message importance |
58 | * @type: socket type |
59 | */ |
60 | struct tipc_server { |
61 | struct idr conn_idr; |
62 | spinlock_t idr_lock; |
63 | int idr_in_use; |
64 | struct kmem_cache *rcvbuf_cache; |
65 | struct workqueue_struct *rcv_wq; |
66 | struct workqueue_struct *send_wq; |
67 | int max_rcvbuf_size; |
68 | void *(*tipc_conn_new) (int conid); |
69 | void (*tipc_conn_shutdown) (int conid, void *usr_data); |
70 | void (*tipc_conn_recvmsg) (int conid, struct sockaddr_tipc *addr, |
71 | void *usr_data, void *buf, size_t len); |
72 | struct sockaddr_tipc *saddr; |
73 | const char name[TIPC_SERVER_NAME_LEN]; |
74 | int imp; |
75 | int type; |
76 | }; |
77 | |
78 | int tipc_conn_sendmsg(struct tipc_server *s, int conid, |
79 | struct sockaddr_tipc *addr, void *data, size_t len); |
80 | |
81 | /** |
82 | * tipc_conn_terminate - terminate connection with server |
83 | * |
84 | * Note: Must call it in process context since it might sleep |
85 | */ |
86 | void tipc_conn_terminate(struct tipc_server *s, int conid); |
87 | |
88 | int tipc_server_start(struct tipc_server *s); |
89 | |
90 | void tipc_server_stop(struct tipc_server *s); |
91 | |
92 | #endif |
93 |
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