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kernel/linux-imx6_3.14.28/net/tipc/node_subscr.h 2.67 KB
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  /*
   * net/tipc/node_subscr.h: Include file for TIPC "node down" subscription handling
   *
   * Copyright (c) 1995-2006, Ericsson AB
   * Copyright (c) 2005, 2010-2011, Wind River Systems
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the names of the copyright holders nor the names of its
   *    contributors may be used to endorse or promote products derived from
   *    this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef _TIPC_NODE_SUBSCR_H
  #define _TIPC_NODE_SUBSCR_H
  
  #include "addr.h"
  
  typedef void (*net_ev_handler) (void *usr_handle);
  
  /**
   * struct tipc_node_subscr - "node down" subscription entry
   * @node: ptr to node structure of interest (or NULL, if none)
   * @handle_node_down: routine to invoke when node fails
   * @usr_handle: argument to pass to routine when node fails
   * @nodesub_list: adjacent entries in list of subscriptions for the node
   */
  struct tipc_node_subscr {
  	struct tipc_node *node;
  	net_ev_handler handle_node_down;
  	void *usr_handle;
  	struct list_head nodesub_list;
  };
  
  void tipc_nodesub_subscribe(struct tipc_node_subscr *node_sub, u32 addr,
  			    void *usr_handle, net_ev_handler handle_down);
  void tipc_nodesub_unsubscribe(struct tipc_node_subscr *node_sub);
  void tipc_nodesub_notify(struct tipc_node *node);
  
  #endif