Root/net/tipc/node_subscr.h

1/*
2 * net/tipc/node_subscr.h: Include file for TIPC "node down" subscription handling
3 *
4 * Copyright (c) 1995-2006, Ericsson AB
5 * Copyright (c) 2005, 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_NODE_SUBSCR_H
38#define _TIPC_NODE_SUBSCR_H
39
40#include "addr.h"
41
42typedef void (*net_ev_handler) (void *usr_handle);
43
44/**
45 * struct tipc_node_subscr - "node down" subscription entry
46 * @node: ptr to node structure of interest (or NULL, if none)
47 * @handle_node_down: routine to invoke when node fails
48 * @usr_handle: argument to pass to routine when node fails
49 * @nodesub_list: adjacent entries in list of subscriptions for the node
50 */
51
52struct tipc_node_subscr {
53    struct tipc_node *node;
54    net_ev_handler handle_node_down;
55    void *usr_handle;
56    struct list_head nodesub_list;
57};
58
59void tipc_nodesub_subscribe(struct tipc_node_subscr *node_sub, u32 addr,
60                void *usr_handle, net_ev_handler handle_down);
61void tipc_nodesub_unsubscribe(struct tipc_node_subscr *node_sub);
62
63#endif
64

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