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9f0a21e641
Add the FreeBSD platform code to the OpenZFS repository. As of this commit the source can be compiled and tested on FreeBSD 11 and 12. Subsequent commits are now required to compile on FreeBSD and Linux. Additionally, they must pass the ZFS Test Suite on FreeBSD which is being run by the CI. As of this commit 1230 tests pass on FreeBSD and there are no unexpected failures. Reviewed-by: Sean Eric Fagan <sef@ixsystems.com> Reviewed-by: Jorgen Lundman <lundman@lundman.net> Reviewed-by: Richard Laager <rlaager@wiktel.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Matt Macy <mmacy@FreeBSD.org> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #898 Closes #8987
82 lines
3.0 KiB
C
82 lines
3.0 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2000 Jake Burkholder <jake@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 _SPL_SYS_CONDVAR_H_
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#define _SPL_SYS_CONDVAR_H_
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#ifndef LOCORE
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#include <sys/queue.h>
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struct lock_object;
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struct thread;
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TAILQ_HEAD(cv_waitq, thread);
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/*
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* Condition variable. The waiters count is protected by the mutex that
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* protects the condition; that is, the mutex that is passed to cv_wait*()
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* and is held across calls to cv_signal() and cv_broadcast(). It is an
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* optimization to avoid looking up the sleep queue if there are no waiters.
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*/
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struct cv {
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const char *cv_description;
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int cv_waiters;
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};
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void cv_init(struct cv *cvp, const char *desc);
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void cv_destroy(struct cv *cvp);
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void _cv_wait(struct cv *cvp, struct lock_object *lock);
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void _cv_wait_unlock(struct cv *cvp, struct lock_object *lock);
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int _cv_wait_sig(struct cv *cvp, struct lock_object *lock);
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int _cv_timedwait_sbt(struct cv *cvp, struct lock_object *lock,
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sbintime_t sbt, sbintime_t pr, int flags);
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int _cv_timedwait_sig_sbt(struct cv *cvp, struct lock_object *lock,
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sbintime_t sbt, sbintime_t pr, int flags);
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void cv_signal(struct cv *cvp);
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void cv_broadcastpri(struct cv *cvp, int pri);
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#define cv_wait(cvp, lock) \
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_cv_wait((cvp), &(lock)->lock_object)
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#define cv_wait_unlock(cvp, lock) \
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_cv_wait_unlock((cvp), &(lock)->lock_object)
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#define cv_timedwait_sbt(cvp, lock, sbt, pr, flags) \
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_cv_timedwait_sbt((cvp), &(lock)->lock_object, (sbt), (pr), (flags))
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#define cv_timedwait_sig_sbt(cvp, lock, sbt, pr, flags) \
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_cv_timedwait_sig_sbt((cvp), &(lock)->lock_object, (sbt), (pr), (flags))
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#define cv_broadcast(cvp) cv_broadcastpri(cvp, 0)
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#define cv_wmesg(cvp) ((cvp)->cv_description)
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#endif /* !LOCORE */
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#endif /* _SYS_CONDVAR_H_ */
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