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sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
62 lines
No EOL
2.3 KiB
C
Vendored
62 lines
No EOL
2.3 KiB
C
Vendored
/* $NetBSD: localcount.h,v 1.5 2017/11/17 09:26:36 ozaki-r Exp $ */
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/*-
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* Copyright (c) 2016 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 Taylor R. Campbell.
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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 _SYS_LOCALCOUNT_H
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#define _SYS_LOCALCOUNT_H
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#ifndef _KERNEL
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#error <sys/localcount.h> is for kernel consumers only.
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#endif
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#include <sys/types.h>
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struct kcondvar;
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struct kmutex;
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struct percpu;
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struct localcount {
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int64_t *lc_totalp;
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struct percpu *lc_percpu; /* int64_t */
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volatile uint32_t lc_refcnt; /* only for debugging */
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};
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void localcount_init(struct localcount *);
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void localcount_drain(struct localcount *, struct kcondvar *,
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struct kmutex *);
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void localcount_fini(struct localcount *);
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void localcount_acquire(struct localcount *);
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void localcount_release(struct localcount *, struct kcondvar *,
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struct kmutex *);
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uint32_t
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localcount_debug_refcnt(const struct localcount *);
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#endif /* _SYS_LOCALCOUNT_H */ |