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b97bf3fd PL |
1 | /* |
2 | * net/tipc/subscr.h: Include file for TIPC subscription service | |
3 | * | |
4 | * Copyright (c) 2003-2005, Ericsson Research Canada | |
5 | * Copyright (c) 2005, Wind River Systems | |
6 | * Copyright (c) 2005-2006, Ericsson AB | |
7 | * All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions are met: | |
11 | * | |
12 | * Redistributions of source code must retain the above copyright notice, this | |
13 | * list of conditions and the following disclaimer. | |
14 | * Redistributions in binary form must reproduce the above copyright notice, | |
15 | * this list of conditions and the following disclaimer in the documentation | |
16 | * and/or other materials provided with the distribution. | |
17 | * Neither the names of the copyright holders nor the names of its | |
18 | * contributors may be used to endorse or promote products derived from this | |
19 | * software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
25 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
31 | * POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef _TIPC_SUBSCR_H | |
35 | #define _TIPC_SUBSCR_H | |
36 | ||
37 | /** | |
38 | * struct subscription - TIPC network topology subscription object | |
39 | * @seq: name sequence associated with subscription | |
40 | * @timeout: duration of subscription (in ms) | |
41 | * @filter: event filtering to be done for subscription | |
42 | * @evt: template for events generated by subscription | |
43 | * @subscription_list: adjacent subscriptions in subscriber's subscription list | |
44 | * @nameseq_list: adjacent subscriptions in name sequence's subscription list | |
45 | * @timer_ref: reference to timer governing subscription duration (may be NULL) | |
46 | * @owner: pointer to subscriber object associated with this subscription | |
47 | */ | |
48 | ||
49 | struct subscription { | |
50 | struct tipc_name_seq seq; | |
51 | u32 timeout; | |
52 | u32 filter; | |
53 | struct tipc_event evt; | |
54 | struct list_head subscription_list; | |
55 | struct list_head nameseq_list; | |
56 | struct timer_list timer; | |
57 | struct subscriber *owner; | |
58 | }; | |
59 | ||
60 | int subscr_overlap(struct subscription * sub, | |
61 | u32 found_lower, | |
62 | u32 found_upper); | |
63 | ||
64 | void subscr_report_overlap(struct subscription * sub, | |
65 | u32 found_lower, | |
66 | u32 found_upper, | |
67 | u32 event, | |
68 | u32 port_ref, | |
69 | u32 node, | |
70 | int must_report); | |
71 | ||
72 | int subscr_start(void); | |
73 | ||
74 | void subscr_stop(void); | |
75 | ||
76 | ||
77 | #endif |