1/*- 2 * Copyright (c) 2010, David Xu <davidxu@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 * notice unmodified, this list of conditions, and the following 10 * 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 * 28 */ 29 30#ifndef _SYS__UMTX_H_ 31#define _SYS__UMTX_H_ 32 33#include <sys/_types.h> 34#include <sys/_timespec.h> 35 36struct umtx { 37 volatile unsigned long u_owner; /* Owner of the mutex. */ 38}; 39 40struct umutex { 41 volatile __lwpid_t m_owner; /* Owner of the mutex */ 42 __uint32_t m_flags; /* Flags of the mutex */ 43 __uint32_t m_ceilings[2]; /* Priority protect ceiling */ 44 __uint32_t m_spare[4]; 45}; 46 47struct ucond { 48 volatile __uint32_t c_has_waiters; /* Has waiters in kernel */ 49 __uint32_t c_flags; /* Flags of the condition variable */ 50 __uint32_t c_clockid; /* Clock id */ 51 __uint32_t c_spare[1]; /* Spare space */ 52}; 53 54struct urwlock { 55 volatile __int32_t rw_state; 56 __uint32_t rw_flags; 57 __uint32_t rw_blocked_readers; 58 __uint32_t rw_blocked_writers; 59 __uint32_t rw_spare[4]; 60}; 61 62struct _usem { 63 volatile __uint32_t _has_waiters; 64 volatile __uint32_t _count; 65 __uint32_t _flags; 66}; 67 68struct _umtx_time { 69 struct timespec _timeout; 70 __uint32_t _flags; 71 __uint32_t _clockid; 72}; 73 74#endif /* !_SYS__UMTX_H_ */ 75