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subr_eventhandler.c (69893) subr_eventhandler.c (71228)
1/*-
2 * Copyright (c) 1999 Michael Smith <msmith@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*-
2 * Copyright (c) 1999 Michael Smith <msmith@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/kern/subr_eventhandler.c 69893 2000-12-12 04:01:35Z jhb $
26 * $FreeBSD: head/sys/kern/subr_eventhandler.c 71228 2001-01-19 01:59:14Z bmilekic $
27 */
28
29#include <sys/param.h>
30#include <sys/kernel.h>
31#include <sys/malloc.h>
32#include <sys/mutex.h>
33#include <sys/systm.h>
34#include <sys/eventhandler.h>

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48
49/*
50 * Initialize the eventhandler mutex and list.
51 */
52static void
53eventhandler_init(void *dummy __unused)
54{
55 TAILQ_INIT(&eventhandler_lists);
27 */
28
29#include <sys/param.h>
30#include <sys/kernel.h>
31#include <sys/malloc.h>
32#include <sys/mutex.h>
33#include <sys/systm.h>
34#include <sys/eventhandler.h>

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48
49/*
50 * Initialize the eventhandler mutex and list.
51 */
52static void
53eventhandler_init(void *dummy __unused)
54{
55 TAILQ_INIT(&eventhandler_lists);
56 mtx_init(&eventhandler_mutex, "eventhandler", MTX_DEF);
56 mtx_init(&eventhandler_mutex, "eventhandler", MTX_DEF | MTX_RECURSE);
57 eventhandler_lists_initted = 1;
58}
59SYSINIT(eventhandlers, SI_SUB_EVENTHANDLER, SI_ORDER_FIRST, eventhandler_init,
60 NULL)
61
62/*
63 * Insertion is O(n) due to the priority scan, but optimises to O(1)
64 * if all priorities are identical.

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57 eventhandler_lists_initted = 1;
58}
59SYSINIT(eventhandlers, SI_SUB_EVENTHANDLER, SI_ORDER_FIRST, eventhandler_init,
60 NULL)
61
62/*
63 * Insertion is O(n) due to the priority scan, but optimises to O(1)
64 * if all priorities are identical.

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