183 lines
6.2 KiB
C
183 lines
6.2 KiB
C
/* $NetBSD: subr_evcnt.c,v 1.4 2005/12/11 12:24:30 christos Exp $ */
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/*
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* Copyright (c) 1996, 2000 Christopher G. Demetriou
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the
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* NetBSD Project. See http://www.NetBSD.org/ for
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* information about NetBSD.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* --(license Id: LICENSE.proto,v 1.1 2000/06/13 21:40:26 cgd Exp )--
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*/
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratories.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* from: Header: subr_autoconf.c,v 1.12 93/02/01 19:31:48 torek Exp (LBL)
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*
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* @(#)subr_autoconf.c 8.3 (Berkeley) 5/17/94
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: subr_evcnt.c,v 1.4 2005/12/11 12:24:30 christos Exp $");
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#include "opt_ddb.h"
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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/* list of all events */
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struct evcntlist allevents = TAILQ_HEAD_INITIALIZER(allevents);
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/*
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* We need a dummy object to stuff into the evcnt link set to
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* ensure that there always is at least one object in the set.
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*/
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static struct evcnt dummy_static_evcnt;
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__link_set_add_bss(evcnts, dummy_static_evcnt);
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/*
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* Initialize event counters. This does the attach procedure for
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* each of the static event counters in the "evcnts" link set.
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*/
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void
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evcnt_init(void)
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{
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__link_set_decl(evcnts, struct evcnt);
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struct evcnt * const *evp;
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__link_set_foreach(evp, evcnts) {
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if (*evp == &dummy_static_evcnt)
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continue;
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evcnt_attach_static(*evp);
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}
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}
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/*
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* Attach a statically-initialized event. The type and string pointers
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* are already set up.
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*/
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void
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evcnt_attach_static(struct evcnt *ev)
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{
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int len;
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len = strlen(ev->ev_group);
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#ifdef DIAGNOSTIC
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if (len >= EVCNT_STRING_MAX) /* ..._MAX includes NUL */
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panic("evcnt_attach_static: group length (%s)", ev->ev_group);
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#endif
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ev->ev_grouplen = len;
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len = strlen(ev->ev_name);
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#ifdef DIAGNOSTIC
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if (len >= EVCNT_STRING_MAX) /* ..._MAX includes NUL */
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panic("evcnt_attach_static: name length (%s)", ev->ev_name);
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#endif
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ev->ev_namelen = len;
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TAILQ_INSERT_TAIL(&allevents, ev, ev_list);
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}
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/*
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* Attach a dynamically-initialized event. Zero it, set up the type
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* and string pointers and then act like it was statically initialized.
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*/
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void
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evcnt_attach_dynamic(struct evcnt *ev, int type, const struct evcnt *parent,
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const char *group, const char *name)
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{
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memset(ev, 0, sizeof *ev);
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ev->ev_type = type;
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ev->ev_parent = parent;
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ev->ev_group = group;
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ev->ev_name = name;
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evcnt_attach_static(ev);
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}
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/*
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* Detach an event.
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*/
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void
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evcnt_detach(struct evcnt *ev)
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{
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TAILQ_REMOVE(&allevents, ev, ev_list);
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}
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#ifdef DDB
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void
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event_print(int full, void (*pr)(const char *, ...))
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{
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struct evcnt *evp;
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TAILQ_FOREACH(evp, &allevents, ev_list) {
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if (evp->ev_count == 0 && !full)
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continue;
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(*pr)("evcnt type %d: %s %s = %lld\n", evp->ev_type,
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evp->ev_group, evp->ev_name, evp->ev_count);
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}
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}
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#endif /* DDB */
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