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https://github.com/openvswitch/ovs
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2ee6545f2b
This patch changes the interface of netlink-notifier and rtnetlink-link. Now nln_notifiers are allocated and destroyed by the module instead of passed in by callers. This allows the definition of nln_notifier to be hidden, and generally cleans up the code.
51 lines
1.8 KiB
C
51 lines
1.8 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 NETLINK_NOTIFIER_H
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#define NETLINK_NOTIFIER_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 nln;
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struct nln_notifier;
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struct nlattr;
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struct ofpbuf;
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/* Function called to report netlink notifications. 'change' describes the
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* specific change filled out by an nln_parse_func. It may be null if the
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* 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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* nln_notifier_register(). */
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typedef void nln_notify_func(const void *change, void *aux);
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/* Function called to parse incoming nln notifications. The 'buf' message
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* should be parsed into 'change' as specified in nln_create(). */
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typedef bool nln_parse_func(struct ofpbuf *buf, void *change);
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struct nln *nln_create(int protocol, int multicast_group, nln_parse_func *,
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void *change);
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void nln_destroy(struct nln *);
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struct nln_notifier *nln_notifier_create(struct nln *, nln_notify_func *,
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void *aux);
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void nln_notifier_destroy(struct nln_notifier *);
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void nln_run(struct nln *);
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void nln_wait(struct nln *);
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#endif /* netlink-notifier.h */
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