forked from luck/tmp_suning_uos_patched
9db9fdd198
Postpone the actions of notifying subscriptions until after node lock is released, avoiding to asynchronously execute registered handlers when node is lost. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
64 lines
2.7 KiB
C
64 lines
2.7 KiB
C
/*
|
|
* 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 list_head *nsub_list);
|
|
|
|
#endif
|