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, 2010-2011, 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 42 typedef 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 52 struct 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 59 void tipc_nodesub_subscribe(struct tipc_node_subscr *node_sub, u32 addr, 60 void *usr_handle, net_ev_handler handle_down); 61 void tipc_nodesub_unsubscribe(struct tipc_node_subscr *node_sub); 62 void tipc_nodesub_notify(struct tipc_node *node); 63 64 #endif 65