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1 | /* |
2 | * net/tipc/subscr.h: Include file for TIPC network topology service |
3 | * |
4 | * Copyright (c) 2003-2006, Ericsson AB |
5 | * Copyright (c) 2005-2007, 2012-2013, Wind River Systems |
6 | * All rights reserved. |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * 3. Neither the names of the copyright holders nor the names of its |
17 | * contributors may be used to endorse or promote products derived from |
18 | * this software without specific prior written permission. |
19 | * |
20 | * Alternatively, this software may be distributed under the terms of the |
21 | * GNU General Public License ("GPL") version 2 as published by the Free |
22 | * Software Foundation. |
23 | * |
24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ |
36 | |
37 | #ifndef _TIPC_SUBSCR_H |
38 | #define _TIPC_SUBSCR_H |
39 | |
40 | #include "server.h" |
41 | |
42 | struct tipc_subscription; |
43 | struct tipc_subscriber; |
44 | |
45 | /** |
46 | * struct tipc_subscription - TIPC network topology subscription object |
47 | * @subscriber: pointer to its subscriber |
48 | * @seq: name sequence associated with subscription |
49 | * @timeout: duration of subscription (in ms) |
50 | * @filter: event filtering to be done for subscription |
51 | * @timer: timer governing subscription duration (optional) |
52 | * @nameseq_list: adjacent subscriptions in name sequence's subscription list |
53 | * @subscription_list: adjacent subscriptions in subscriber's subscription list |
54 | * @server_ref: object reference of server port associated with subscription |
55 | * @swap: indicates if subscriber uses opposite endianness in its messages |
56 | * @evt: template for events generated by subscription |
57 | */ |
58 | struct tipc_subscription { |
59 | struct tipc_subscriber *subscriber; |
60 | struct tipc_name_seq seq; |
61 | u32 timeout; |
62 | u32 filter; |
63 | struct timer_list timer; |
64 | struct list_head nameseq_list; |
65 | struct list_head subscription_list; |
66 | int swap; |
67 | struct tipc_event evt; |
68 | }; |
69 | |
70 | int tipc_subscr_overlap(struct tipc_subscription *sub, u32 found_lower, |
71 | u32 found_upper); |
72 | |
73 | void tipc_subscr_report_overlap(struct tipc_subscription *sub, u32 found_lower, |
74 | u32 found_upper, u32 event, u32 port_ref, |
75 | u32 node, int must); |
76 | |
77 | int tipc_subscr_start(void); |
78 | |
79 | void tipc_subscr_stop(void); |
80 | |
81 | #endif |
82 |
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