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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/contrib/ck/include/ck_spinlock.h
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/*

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 * Copyright 2010-2015 Samy Al Bahra.

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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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#ifndef CK_SPINLOCK_H

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#define CK_SPINLOCK_H

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#include "spinlock/anderson.h"

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#include "spinlock/cas.h"

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#include "spinlock/clh.h"

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#include "spinlock/dec.h"

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#include "spinlock/fas.h"

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#include "spinlock/hclh.h"

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#include "spinlock/mcs.h"

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#include "spinlock/ticket.h"

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/*

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 * On tested x86, x86_64, PPC64 and SPARC64 targets,

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 * ck_spinlock_fas proved to have lowest latency

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 * in fast path testing or negligible degradation

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 * from faster but less robust implementations.

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 */

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#define CK_SPINLOCK_INITIALIZER CK_SPINLOCK_FAS_INITIALIZER

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#define ck_spinlock_t		ck_spinlock_fas_t

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#define ck_spinlock_init(x)	ck_spinlock_fas_init(x)

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#define ck_spinlock_lock(x)	ck_spinlock_fas_lock(x)

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#define ck_spinlock_lock_eb(x)	ck_spinlock_fas_lock_eb(x)

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#define ck_spinlock_unlock(x)	ck_spinlock_fas_unlock(x)

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#define ck_spinlock_locked(x)	ck_spinlock_fas_locked(x)

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#define ck_spinlock_trylock(x)	ck_spinlock_fas_trylock(x)

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CK_ELIDE_PROTOTYPE(ck_spinlock, ck_spinlock_t,

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    ck_spinlock_locked, ck_spinlock_lock,

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    ck_spinlock_locked, ck_spinlock_unlock)

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CK_ELIDE_TRYLOCK_PROTOTYPE(ck_spinlock, ck_spinlock_t,

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    ck_spinlock_locked, ck_spinlock_trylock)

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#endif /* CK_SPINLOCK_H */

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