85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/* $NetBSD: net_stats.h,v 1.4 2014/09/05 06:01:24 matt Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NET_NET_STATS_H_
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#define _NET_NET_STATS_H_
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#ifdef _KERNEL
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#include <sys/percpu.h>
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#define _NET_STAT_GETREF(stat) ((uint64_t *)percpu_getref((stat)))
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#define _NET_STAT_PUTREF(stat) percpu_putref((stat))
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#define _NET_STATINC(stat, x) \
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do { \
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uint64_t *_stat_ = _NET_STAT_GETREF(stat); \
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_stat_[x]++; \
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_NET_STAT_PUTREF(stat); \
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} while (/*CONSTCOND*/0)
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#define _NET_STATDEC(stat, x) \
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do { \
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uint64_t *_stat_ = _NET_STAT_GETREF(stat); \
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_stat_[x]--; \
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_NET_STAT_PUTREF(stat); \
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} while (/*CONSTCOND*/0)
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#define _NET_STATADD(stat, x, v) \
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do { \
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uint64_t *_stat_ = _NET_STAT_GETREF(stat); \
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_stat_[x] += (v); \
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_NET_STAT_PUTREF(stat); \
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} while (/*CONSTCOND*/0)
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#define _NET_STATSUB(stat, x, v) \
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do { \
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uint64_t *_stat_ = _NET_STAT_GETREF(stat); \
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_stat_[x] -= (v); \
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_NET_STAT_PUTREF(stat); \
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} while (/*CONSTCOND*/0)
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__BEGIN_DECLS
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struct lwp;
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struct sysctlnode;
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int netstat_sysctl(percpu_t *, u_int,
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const int *, u_int, void *,
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size_t *, const void *, size_t,
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const int *, struct lwp *, const struct sysctlnode *);
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#define NETSTAT_SYSCTL(stat, nctrs) \
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netstat_sysctl((stat), (nctrs), name, namelen, oldp, oldlenp, \
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newp, newlen, oname, l, rnode)
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_NET_NET_STATS_H_ */
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