/*
* net / tipc / subscr . h : Include file for TIPC network topology service
*
* Copyright ( c ) 2003 - 2017 , Ericsson AB
* Copyright ( c ) 2005 - 2007 , 2012 - 2013 , Wind River Systems
* Copyright ( c ) 2020 - 2021 , Red Hat Inc
* 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_SUBSCR_H
#define _TIPC_SUBSCR_H
#include "topsrv.h"
#define TIPC_MAX_SUBSCR 65535
#define TIPC_MAX_PUBL 65535
struct publication;
struct tipc_subscription;
struct tipc_conn;
/**
* struct tipc_subscription - TIPC network topology subscription object
* @ s : host - endian copy of the user subscription
* @ evt : template for events generated by subscription
* @ kref : reference count for this subscription
* @ net : network namespace associated with subscription
* @ timer : timer governing subscription duration ( optional )
* @ service_list : adjacent subscriptions in name sequence ' s subscription list
* @ sub_list : adjacent subscriptions in subscriber ' s subscription list
* @ conid : connection identifier of topology server
* @ inactive : true if this subscription is inactive
* @ lock : serialize up / down and timer events
*/
struct tipc_subscription {
struct tipc_subscr s;
struct tipc_event evt;
struct kref kref;
struct net *net;
struct timer_list timer;
struct list_head service_list;
struct list_head sub_list;
int conid;
bool inactive;
spinlock_t lock;
};
struct tipc_subscription *tipc_sub_subscribe(struct net *net,
struct tipc_subscr *s,
int conid);
void tipc_sub_unsubscribe(struct tipc_subscription *sub);
void tipc_sub_report_overlap(struct tipc_subscription *sub,
struct publication *p,
u32 event, bool must);
int __net_init tipc_topsrv_init_net(struct net *net);
void __net_exit tipc_topsrv_exit_net(struct net *net);
void tipc_sub_put(struct tipc_subscription *subscription);
void tipc_sub_get(struct tipc_subscription *subscription);
#define TIPC_FILTER_MASK (TIPC_SUB_PORTS | TIPC_SUB_SERVICE | TIPC_SUB_CANCEL)
/* tipc_sub_read - return field_ of struct sub_ in host endian format
*/
#define tipc_sub_read(sub_, field_) \
({ \
struct tipc_subscr *sub__ = sub_; \
u32 val__ = (sub__)->field_; \
int swap_ = !((sub__)->filter & TIPC_FILTER_MASK); \
(swap_ ? swab32(val__) : val__); \
})
/* tipc_sub_write - write val_ to field_ of struct sub_ in user endian format
*/
#define tipc_sub_write(sub_, field_, val_) \
({ \
struct tipc_subscr *sub__ = sub_; \
u32 val__ = val_; \
int swap_ = !((sub__)->filter & TIPC_FILTER_MASK); \
(sub__)->field_ = swap_ ? swab32(val__) : val__; \
})
/* tipc_evt_write - write val_ to field_ of struct evt_ in user endian format
*/
#define tipc_evt_write(evt_, field_, val_) \
({ \
struct tipc_event *evt__ = evt_; \
u32 val__ = val_; \
int swap_ = !((evt__)->s.filter & (TIPC_FILTER_MASK)); \
(evt__)->field_ = swap_ ? swab32(val__) : val__; \
})
#endif
Messung V0.5 in Prozent C=97 H=100 G=98
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland