/*-
* Copyright (c) 2008-2009 Stacey Son <sson@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* DTrace lockstat provider definitions
*/
#ifndef _SYS_LOCKSTAT_H
#define _SYS_LOCKSTAT_H
#ifdef _KERNEL
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/sdt.h>
SDT_PROVIDER_DECLARE(lockstat);
SDT_PROBE_DECLARE(lockstat, , , adaptive__acquire);
SDT_PROBE_DECLARE(lockstat, , , adaptive__release);
SDT_PROBE_DECLARE(lockstat, , , adaptive__spin);
SDT_PROBE_DECLARE(lockstat, , , adaptive__block);
SDT_PROBE_DECLARE(lockstat, , , spin__acquire);
SDT_PROBE_DECLARE(lockstat, , , spin__release);
SDT_PROBE_DECLARE(lockstat, , , spin__spin);
SDT_PROBE_DECLARE(lockstat, , , rw__acquire);
SDT_PROBE_DECLARE(lockstat, , , rw__release);
SDT_PROBE_DECLARE(lockstat, , , rw__block);
SDT_PROBE_DECLARE(lockstat, , , rw__spin);
SDT_PROBE_DECLARE(lockstat, , , rw__upgrade);
SDT_PROBE_DECLARE(lockstat, , , rw__downgrade);
SDT_PROBE_DECLARE(lockstat, , , sx__acquire);
SDT_PROBE_DECLARE(lockstat, , , sx__release);
SDT_PROBE_DECLARE(lockstat, , , sx__block);
SDT_PROBE_DECLARE(lockstat, , , sx__spin);
SDT_PROBE_DECLARE(lockstat, , , sx__upgrade);
SDT_PROBE_DECLARE(lockstat, , , sx__downgrade);
SDT_PROBE_DECLARE(lockstat, , , thread__spin);
#define LOCKSTAT_WRITER 0
#define LOCKSTAT_READER 1
extern int lockstat_enabled;
#ifdef KDTRACE_HOOKS
#define LOCKSTAT_RECORD0(probe, lp) \
SDT_PROBE1(lockstat, , , probe, lp)
#define LOCKSTAT_RECORD1(probe, lp, arg1) \
SDT_PROBE2(lockstat, , , probe, lp, arg1)
#define LOCKSTAT_RECORD2(probe, lp, arg1, arg2) \
SDT_PROBE3(lockstat, , , probe, lp, arg1, arg2)
#define LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3) \
SDT_PROBE4(lockstat, , , probe, lp, arg1, arg2, arg3)
#define LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4) \
SDT_PROBE5(lockstat, , , probe, lp, arg1, arg2, arg3, arg4)
#define LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) do { \
lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l); \
LOCKSTAT_RECORD0(probe, lp); \
} while (0)
#define LOCKSTAT_PROFILE_OBTAIN_RWLOCK_SUCCESS(probe, lp, c, wt, f, l, a) do { \
lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l); \
LOCKSTAT_RECORD1(probe, lp, a); \
} while (0)
#define LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) do { \
lock_profile_release_lock(&(lp)->lock_object); \
LOCKSTAT_RECORD0(probe, lp); \
} while (0)
#define LOCKSTAT_PROFILE_RELEASE_RWLOCK(probe, lp, a) do { \
lock_profile_release_lock(&(lp)->lock_object); \
LOCKSTAT_RECORD1(probe, lp, a); \
} while (0)
struct lock_object;
uint64_t lockstat_nsecs(struct lock_object *);
#else /* !KDTRACE_HOOKS */
#define LOCKSTAT_RECORD0(probe, lp)
#define LOCKSTAT_RECORD1(probe, lp, arg1)
#define LOCKSTAT_RECORD2(probe, lp, arg1, arg2)
#define LOCKSTAT_RECORD3(probe, lp, arg1, arg2, arg3)
#define LOCKSTAT_RECORD4(probe, lp, arg1, arg2, arg3, arg4)
#define LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l) \
lock_profile_obtain_lock_success(&(lp)->lock_object, c, wt, f, l)
#define LOCKSTAT_PROFILE_OBTAIN_RWLOCK_SUCCESS(probe, lp, c, wt, f, l, a) \
LOCKSTAT_PROFILE_OBTAIN_LOCK_SUCCESS(probe, lp, c, wt, f, l)
#define LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp) \
lock_profile_release_lock(&(lp)->lock_object)
#define LOCKSTAT_PROFILE_RELEASE_RWLOCK(probe, lp, a) \
LOCKSTAT_PROFILE_RELEASE_LOCK(probe, lp)
#endif /* !KDTRACE_HOOKS */
#endif /* _KERNEL */
#endif /* _SYS_LOCKSTAT_H */
