/*
 * net/tipc/subscr.h: Include file for TIPC subscription service
 * 
 * Copyright (c) 2003-2005, Ericsson Research Canada
 * Copyright (c) 2005, Wind River Systems
 * Copyright (c) 2005-2006, Ericsson AB
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this 
 * list of conditions and the following disclaimer.
 * 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.
 * 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.
 *
 * 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_SUBSCR_H
#define _TIPC_SUBSCR_H

/**
 * struct subscription - TIPC network topology subscription object
 * @seq: name sequence associated with subscription
 * @timeout: duration of subscription (in ms)
 * @filter: event filtering to be done for subscription
 * @evt: template for events generated by subscription
 * @subscription_list: adjacent subscriptions in subscriber's subscription list
 * @nameseq_list: adjacent subscriptions in name sequence's subscription list
 * @timer_ref: reference to timer governing subscription duration (may be NULL)
 * @owner: pointer to subscriber object associated with this subscription
 */
 
struct subscription {
	struct tipc_name_seq seq;
	u32 timeout;
	u32 filter;
	struct tipc_event evt;
	struct list_head subscription_list;
	struct list_head nameseq_list;
	struct timer_list timer;
	struct subscriber *owner;
};

int subscr_overlap(struct subscription * sub, 
		   u32 found_lower, 
		   u32 found_upper);

void subscr_report_overlap(struct subscription * sub, 
			   u32 found_lower, 
			   u32 found_upper,
			   u32 event, 
			   u32 port_ref, 
			   u32 node,
			   int must_report);

int subscr_start(void);

void subscr_stop(void);


#endif