64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*-
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* Copyright (c) 2012 Gleb Smirnoff <glebius@FreeBSD.org>
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* All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __SYS_COUNTER_H__
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#define __SYS_COUNTER_H__
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typedef uint64_t *counter_u64_t;
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#ifdef _KERNEL
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#include <machine/counter.h>
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counter_u64_t counter_u64_alloc(int);
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void counter_u64_free(counter_u64_t);
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void counter_u64_zero(counter_u64_t);
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uint64_t counter_u64_fetch(counter_u64_t);
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#define COUNTER_ARRAY_ALLOC(a, n, wait) do { \
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for (int i = 0; i < (n); i++) \
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(a)[i] = counter_u64_alloc(wait); \
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} while (0)
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#define COUNTER_ARRAY_FREE(a, n) do { \
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for (int i = 0; i < (n); i++) \
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counter_u64_free((a)[i]); \
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} while (0)
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#define COUNTER_ARRAY_COPY(a, dstp, n) do { \
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for (int i = 0; i < (n); i++) \
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((uint64_t *)(dstp))[i] = counter_u64_fetch((a)[i]);\
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} while (0)
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#define COUNTER_ARRAY_ZERO(a, n) do { \
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for (int i = 0; i < (n); i++) \
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counter_u64_zero((a)[i]); \
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} while (0)
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#endif /* _KERNEL */
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#endif /* ! __SYS_COUNTER_H__ */
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