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Annotation of sys/sys/evcount.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: evcount.h,v 1.2 2004/09/29 07:37:07 miod Exp $ */
        !             2: /*
        !             3:  * Copyright (c) 2004 Artur Grabowski <art@openbsd.org>
        !             4:  * Copyright (c) 2004 Aaron Campbell <aaron@openbsd.org>
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  *
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. The name of the author may not be used to endorse or promote products
        !            14:  *    derived from this software without specific prior written permission.
        !            15:  *
        !            16:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
        !            17:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
        !            18:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
        !            19:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
        !            20:  * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
        !            21:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
        !            22:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
        !            23:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
        !            24:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
        !            25:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            26:  */
        !            27:
        !            28: #ifndef __SYS_EVCOUNT_H__
        !            29: #define __SYS_EVCOUNT_H__
        !            30:
        !            31: #ifdef _KERNEL
        !            32:
        !            33: #include <sys/queue.h>
        !            34:
        !            35: struct evcount {
        !            36:        u_int64_t               ec_count;       /* main counter */
        !            37:        int                     ec_id;          /* counter ID */
        !            38:        const char              *ec_name;       /* counter name */
        !            39:        struct evcount          *ec_parent;     /* parent */
        !            40:        void                    *ec_data;       /* user data */
        !            41:
        !            42:        TAILQ_ENTRY(evcount)    next;
        !            43: };
        !            44:
        !            45: void evcount_attach(struct evcount *, const char *, void *, struct evcount *);
        !            46: void evcount_detach(struct evcount *);
        !            47: int evcount_sysctl(int *, u_int, void *, size_t *, void *, size_t);
        !            48:
        !            49: /*
        !            50:  * Standard evcount parents.
        !            51:  */
        !            52: extern struct evcount evcount_intr;
        !            53:
        !            54: #endif /* _KERNEL */
        !            55:
        !            56: #endif