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Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1997 Berkeley Software Design, Inc. 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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* 3. Berkeley Software Design Inc's name may not be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``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 BERKELEY SOFTWARE DESIGN INC 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__MUTEX_H_
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#define _SYS__MUTEX_H_
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#include <machine/param.h>
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/*
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* Sleep/spin mutex.
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*
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* All mutex implementations must always have a member called mtx_lock.
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* Other locking primitive structures are not allowed to use this name
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* for their members.
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* If this rule needs to change, the bits in the mutex implementation must
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* be modified appropriately.
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*/
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struct mtx {
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struct lock_object lock_object; /* Common lock properties. */
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volatile uintptr_t mtx_lock; /* Owner and flags. */
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};
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/*
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* Members of struct mtx_padalign must mirror members of struct mtx.
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* mtx_padalign mutexes can use the mtx(9) API transparently without
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* modification.
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* Pad-aligned mutexes used within structures should generally be the
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* first member of the struct. Otherwise, the compiler can generate
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* additional padding for the struct to keep a correct alignment for
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* the mutex.
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*/
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struct mtx_padalign {
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struct lock_object lock_object; /* Common lock properties. */
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volatile uintptr_t mtx_lock; /* Owner and flags. */
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} __aligned(CACHE_LINE_SIZE);
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#endif /* !_SYS__MUTEX_H_ */
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