mirror of
https://github.com/openvswitch/ovs
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8f5b651c0a
This commit adds a function to rtnetlink which may be used to destroy struct rtnetlink handles. This function will be used in a future commit.
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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* Copyright (c) 2009 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef RTNETLINK_H
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#define RTNETLINK_H 1
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/* These functions are Linux specific, so they should be used directly only by
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* Linux-specific code. */
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#include "list.h"
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struct rtnetlink;
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struct nlattr;
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struct ofpbuf;
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/* Function called to report rtnetlink notifications. 'change' describes the
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* specific change filled out by an rtnetlink_parse_func. It may be null if
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* the buffer of change information overflowed, in which case the function must
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* assume that everything may have changed. 'aux' is as specified in
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* rtnetlink_notifier_register().
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*/
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typedef void rtnetlink_notify_func(const void *change, void *aux);
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/* Function called to parse incoming rtnetlink notifications. The 'buf'
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* message should be parsed into 'change' as specified in rtnetlink_create().
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*/
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typedef bool rtnetlink_parse_func(struct ofpbuf *buf, void *change);
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struct rtnetlink_notifier {
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struct list node;
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rtnetlink_notify_func *cb;
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void *aux;
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};
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struct rtnetlink *rtnetlink_create(int multicast_group,
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rtnetlink_parse_func *,
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void *change);
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void rtnetlink_destroy(struct rtnetlink *rtn);
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int rtnetlink_notifier_register(struct rtnetlink *,
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struct rtnetlink_notifier *,
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rtnetlink_notify_func *, void *aux);
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void rtnetlink_notifier_unregister(struct rtnetlink *,
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struct rtnetlink_notifier *);
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void rtnetlink_notifier_run(struct rtnetlink *);
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void rtnetlink_notifier_wait(struct rtnetlink *);
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#endif /* rtnetlink.h */
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