| umtx.h (296162) | umtx.h (300043) |
|---|---|
| 1/*- 2 * Copyright (c) 2002, Jeffrey Roberson <jeff@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 * 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 * | 1/*- 2 * Copyright (c) 2002, Jeffrey Roberson <jeff@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 * 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: head/sys/sys/umtx.h 296162 2016-02-28 17:52:33Z kib $ | 26 * $FreeBSD: head/sys/sys/umtx.h 300043 2016-05-17 09:56:22Z kib $ |
| 27 * 28 */ 29 30#ifndef _SYS_UMTX_H_ 31#define _SYS_UMTX_H_ 32 33#include <sys/_umtx.h> 34 | 27 * 28 */ 29 30#ifndef _SYS_UMTX_H_ 31#define _SYS_UMTX_H_ 32 33#include <sys/_umtx.h> 34 |
| 35/* Common lock flags */ |
|
| 35#define USYNC_PROCESS_SHARED 0x0001 /* Process shared sync objs */ 36 | 36#define USYNC_PROCESS_SHARED 0x0001 /* Process shared sync objs */ 37 |
| 37#define UMUTEX_UNOWNED 0x0 38#define UMUTEX_CONTESTED 0x80000000U 39 | 38/* umutex flags */ |
| 40#define UMUTEX_PRIO_INHERIT 0x0004 /* Priority inherited mutex */ 41#define UMUTEX_PRIO_PROTECT 0x0008 /* Priority protect mutex */ | 39#define UMUTEX_PRIO_INHERIT 0x0004 /* Priority inherited mutex */ 40#define UMUTEX_PRIO_PROTECT 0x0008 /* Priority protect mutex */ |
| 41#define UMUTEX_ROBUST 0x0010 /* Robust mutex */ 42#define UMUTEX_NONCONSISTENT 0x0020 /* Robust locked but not consistent */ |
|
| 42 | 43 |
| 44/* 45 * The umutex.m_lock values and bits. The m_owner is the word which 46 * serves as the lock. Its high bit is the contention indicator and 47 * rest of bits records the owner TID. TIDs values start with PID_MAX 48 * + 2 and end by INT32_MAX. The low range [1..PID_MAX] is guaranteed 49 * to be useable as the special markers. 50 */ 51#define UMUTEX_UNOWNED 0x0 52#define UMUTEX_CONTESTED 0x80000000U 53#define UMUTEX_RB_OWNERDEAD (UMUTEX_CONTESTED | 0x10) 54#define UMUTEX_RB_NOTRECOV (UMUTEX_CONTESTED | 0x11) 55 |
|
| 43/* urwlock flags */ 44#define URWLOCK_PREFER_READER 0x0002 45 46#define URWLOCK_WRITE_OWNER 0x80000000U 47#define URWLOCK_WRITE_WAITERS 0x40000000U 48#define URWLOCK_READ_WAITERS 0x20000000U 49#define URWLOCK_MAX_READERS 0x1fffffffU 50#define URWLOCK_READER_COUNT(c) ((c) & URWLOCK_MAX_READERS) --- 28 unchanged lines hidden (view full) --- 79#define UMTX_OP_MUTEX_WAKE 18 /* deprecated */ 80#define UMTX_OP_SEM_WAIT 19 /* deprecated */ 81#define UMTX_OP_SEM_WAKE 20 /* deprecated */ 82#define UMTX_OP_NWAKE_PRIVATE 21 83#define UMTX_OP_MUTEX_WAKE2 22 84#define UMTX_OP_SEM2_WAIT 23 85#define UMTX_OP_SEM2_WAKE 24 86#define UMTX_OP_SHM 25 | 56/* urwlock flags */ 57#define URWLOCK_PREFER_READER 0x0002 58 59#define URWLOCK_WRITE_OWNER 0x80000000U 60#define URWLOCK_WRITE_WAITERS 0x40000000U 61#define URWLOCK_READ_WAITERS 0x20000000U 62#define URWLOCK_MAX_READERS 0x1fffffffU 63#define URWLOCK_READER_COUNT(c) ((c) & URWLOCK_MAX_READERS) --- 28 unchanged lines hidden (view full) --- 92#define UMTX_OP_MUTEX_WAKE 18 /* deprecated */ 93#define UMTX_OP_SEM_WAIT 19 /* deprecated */ 94#define UMTX_OP_SEM_WAKE 20 /* deprecated */ 95#define UMTX_OP_NWAKE_PRIVATE 21 96#define UMTX_OP_MUTEX_WAKE2 22 97#define UMTX_OP_SEM2_WAIT 23 98#define UMTX_OP_SEM2_WAKE 24 99#define UMTX_OP_SHM 25 |
| 100#define UMTX_OP_ROBUST_LISTS 26 |
|
| 87 88/* Flags for UMTX_OP_CV_WAIT */ 89#define CVWAIT_CHECK_UNPARKING 0x01 90#define CVWAIT_ABSTIME 0x02 91#define CVWAIT_CLOCKID 0x04 92 93#define UMTX_ABSTIME 0x01 94 95#define UMTX_CHECK_UNPARKING CVWAIT_CHECK_UNPARKING 96 97/* Flags for UMTX_OP_SHM */ 98#define UMTX_SHM_CREAT 0x0001 99#define UMTX_SHM_LOOKUP 0x0002 100#define UMTX_SHM_DESTROY 0x0004 101#define UMTX_SHM_ALIVE 0x0008 102 | 101 102/* Flags for UMTX_OP_CV_WAIT */ 103#define CVWAIT_CHECK_UNPARKING 0x01 104#define CVWAIT_ABSTIME 0x02 105#define CVWAIT_CLOCKID 0x04 106 107#define UMTX_ABSTIME 0x01 108 109#define UMTX_CHECK_UNPARKING CVWAIT_CHECK_UNPARKING 110 111/* Flags for UMTX_OP_SHM */ 112#define UMTX_SHM_CREAT 0x0001 113#define UMTX_SHM_LOOKUP 0x0002 114#define UMTX_SHM_DESTROY 0x0004 115#define UMTX_SHM_ALIVE 0x0008 116 |
| 117struct umtx_robust_lists_params { 118 uintptr_t robust_list_offset; 119 uintptr_t robust_priv_list_offset; 120 uintptr_t robust_inact_offset; 121}; 122 |
|
| 103#ifndef _KERNEL 104 105int _umtx_op(void *obj, int op, u_long val, void *uaddr, void *uaddr2); 106 107#else 108 109/* 110 * The umtx_key structure is used by both the Linux futex code and the --- 6 unchanged lines hidden (view full) --- 117 TYPE_SEM, 118 TYPE_SIMPLE_LOCK, 119 TYPE_NORMAL_UMUTEX, 120 TYPE_PI_UMUTEX, 121 TYPE_PP_UMUTEX, 122 TYPE_RWLOCK, 123 TYPE_FUTEX, 124 TYPE_SHM, | 123#ifndef _KERNEL 124 125int _umtx_op(void *obj, int op, u_long val, void *uaddr, void *uaddr2); 126 127#else 128 129/* 130 * The umtx_key structure is used by both the Linux futex code and the --- 6 unchanged lines hidden (view full) --- 137 TYPE_SEM, 138 TYPE_SIMPLE_LOCK, 139 TYPE_NORMAL_UMUTEX, 140 TYPE_PI_UMUTEX, 141 TYPE_PP_UMUTEX, 142 TYPE_RWLOCK, 143 TYPE_FUTEX, 144 TYPE_SHM, |
| 145 TYPE_PI_ROBUST_UMUTEX, 146 TYPE_PP_ROBUST_UMUTEX, |
|
| 125}; 126 127/* Key to represent a unique userland synchronous object */ 128struct umtx_key { 129 int hash; 130 int type; 131 int shared; 132 union { --- 42 unchanged lines hidden --- | 147}; 148 149/* Key to represent a unique userland synchronous object */ 150struct umtx_key { 151 int hash; 152 int type; 153 int shared; 154 union { --- 42 unchanged lines hidden --- |