e2e050c8ef
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
145 lines
5.6 KiB
C
145 lines
5.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1999 Michael Smith <msmith@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 _SYS__EVENTHANDLER_H_
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#define _SYS__EVENTHANDLER_H_
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#include <sys/queue.h>
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struct eventhandler_entry {
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TAILQ_ENTRY(eventhandler_entry) ee_link;
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int ee_priority;
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#define EHE_DEAD_PRIORITY (-1)
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void *ee_arg;
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};
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typedef struct eventhandler_entry *eventhandler_tag;
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/*
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* You can optionally use the EVENTHANDLER_LIST and EVENTHANDLER_DIRECT macros
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* to pre-define a symbol for the eventhandler list. This symbol can be used by
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* EVENTHANDLER_DIRECT_INVOKE, which has the advantage of not needing to do a
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* locked search of the global list of eventhandler lists. At least
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* EVENTHANDLER_LIST_DEFINE must be be used for EVENTHANDLER_DIRECT_INVOKE to
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* work. EVENTHANDLER_LIST_DECLARE is only needed if the call to
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* EVENTHANDLER_DIRECT_INVOKE is in a different compilation unit from
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* EVENTHANDLER_LIST_DEFINE. If the events are even relatively high frequency
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* it is suggested that you directly define a list for them.
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*/
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struct eventhandler_list;
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#define EVENTHANDLER_LIST_DECLARE(name) \
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extern struct eventhandler_list *_eventhandler_list_ ## name \
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/*
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* Event handlers need to be declared, but do not need to be defined. The
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* declaration must be in scope wherever the handler is to be invoked.
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*/
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#define EVENTHANDLER_DECLARE(name, type) \
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struct eventhandler_entry_ ## name \
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{ \
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struct eventhandler_entry ee; \
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type eh_func; \
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}; \
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struct __hack
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#endif
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1999 Michael Smith <msmith@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 _SYS__EVENTHANDLER_H_
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#define _SYS__EVENTHANDLER_H_
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#include <sys/queue.h>
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struct eventhandler_entry {
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TAILQ_ENTRY(eventhandler_entry) ee_link;
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int ee_priority;
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#define EHE_DEAD_PRIORITY (-1)
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void *ee_arg;
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};
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typedef struct eventhandler_entry *eventhandler_tag;
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/*
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* You can optionally use the EVENTHANDLER_LIST and EVENTHANDLER_DIRECT macros
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* to pre-define a symbol for the eventhandler list. This symbol can be used by
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* EVENTHANDLER_DIRECT_INVOKE, which has the advantage of not needing to do a
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* locked search of the global list of eventhandler lists. At least
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* EVENTHANDLER_LIST_DEFINE must be be used for EVENTHANDLER_DIRECT_INVOKE to
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* work. EVENTHANDLER_LIST_DECLARE is only needed if the call to
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* EVENTHANDLER_DIRECT_INVOKE is in a different compilation unit from
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* EVENTHANDLER_LIST_DEFINE. If the events are even relatively high frequency
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* it is suggested that you directly define a list for them.
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*/
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struct eventhandler_list;
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#define EVENTHANDLER_LIST_DECLARE(name) \
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extern struct eventhandler_list *_eventhandler_list_ ## name \
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/*
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* Event handlers need to be declared, but do not need to be defined. The
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* declaration must be in scope wherever the handler is to be invoked.
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*/
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#define EVENTHANDLER_DECLARE(name, type) \
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struct eventhandler_entry_ ## name \
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{ \
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struct eventhandler_entry ee; \
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type eh_func; \
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}; \
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struct __hack
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#endif
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