The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/_lock.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*      $OpenBSD: _lock.h,v 1.4 2019/04/23 13:35:12 visa Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. Berkeley Software Design Inc's name may not be used to endorse or
   15  *    promote products derived from this software without specific prior
   16  *    written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD: head/sys/sys/_lock.h 179025 2008-05-15 20:10:06Z attilio $
   31  */
   32 
   33 #ifndef _SYS__LOCK_H_
   34 #define _SYS__LOCK_H_
   35 
   36 #define LO_CLASSFLAGS   0x0000ffff      /* Class specific flags. */
   37 #define LO_INITIALIZED  0x00010000      /* Lock has been initialized. */
   38 #define LO_WITNESS      0x00020000      /* Should witness monitor this lock. */
   39 #define LO_QUIET        0x00040000      /* Don't log locking operations. */
   40 #define LO_RECURSABLE   0x00080000      /* Lock may recurse. */
   41 #define LO_SLEEPABLE    0x00100000      /* Lock may be held while sleeping. */
   42 #define LO_UPGRADABLE   0x00200000      /* Lock may be upgraded/downgraded. */
   43 #define LO_DUPOK        0x00400000      /* Don't check for duplicate acquires */
   44 #define LO_IS_VNODE     0x00800000      /* Tell WITNESS about a VNODE lock */
   45 #define LO_CLASSMASK    0x0f000000      /* Class index bitmask. */
   46 #define LO_NOPROFILE    0x10000000      /* Don't profile this lock */
   47 #define LO_NEW          0x20000000      /* Don't check for double-init */
   48 
   49 #define LO_CLASSSHIFT           24
   50 
   51 enum lock_class_index {
   52         LO_CLASS_KERNEL_LOCK,
   53         LO_CLASS_SCHED_LOCK,
   54         LO_CLASS_MUTEX,
   55         LO_CLASS_RWLOCK,
   56         LO_CLASS_RRWLOCK
   57 };
   58 
   59 struct lock_object {
   60         const struct lock_type  *lo_type;
   61         const char              *lo_name;       /* Individual lock name. */
   62         struct witness          *lo_witness;    /* Data for witness. */
   63         unsigned int             lo_flags;
   64 };
   65 
   66 struct lock_type {
   67         const char              *lt_name;
   68 };
   69 
   70 #endif /* !_SYS__LOCK_H_ */

Cache object: 0e5278a78ed95b41e1f1fcc0a3519bb1


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.