1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_SYNCH32_H 28 #define _SYS_SYNCH32_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 /* special defines for LWP mutexes */ 35 #define mutex_flag flags.flag1 36 #define mutex_ceiling flags.ceiling 37 #define mutex_type flags.mbcp_type_un.mtype_rcount.count_type2 38 #define mutex_rcount flags.mbcp_type_un.mtype_rcount.count_type1 39 #define mutex_magic flags.magic 40 #define mutex_owner data 41 /* used to atomically operate on whole word via cas or swap instruction */ 42 #define mutex_lockword lock.lock32.lockword 43 /* this requires atomic_cas_64 */ 44 #define mutex_lockword64 lock.owner64 45 /* these are bytes */ 46 #define mutex_lockw lock.lock64.pad[4] 47 #define mutex_waiters lock.lock64.pad[7] 48 #define mutex_spinners lock.lock64.pad[5] 49 50 /* process-shared lock owner pid */ 51 #define mutex_ownerpid lock.lock32.ownerpid 52 53 /* Max. recusrion count for recursive mutexes */ 54 #define RECURSION_MAX 255 55 56 /* special defines for LWP condition variables */ 57 #define cond_type flags.type 58 #define cond_magic flags.magic 59 #define cond_clockid flags.flag[1] 60 #define cond_waiters_user flags.flag[2] 61 #define cond_waiters_kernel flags.flag[3] 62 63 /* special defines for LWP semaphores */ 64 #define sema_count count 65 #define sema_type type 66 #define sema_waiters flags[7] 67 68 /* special defines for LWP rwlocks */ 69 #define rwlock_readers readers 70 #define rwlock_type type 71 #define rwlock_magic magic 72 #define rwlock_owner readercv.data 73 #define rwlock_ownerpid writercv.data 74 75 #define URW_HAS_WAITERS 0x80000000 76 #define URW_WRITE_LOCKED 0x40000000 77 #define URW_READERS_MASK 0x3fffffff 78 79 #ifdef __cplusplus 80 } 81 #endif 82 83 #endif /* _SYS_SYNCH32_H */ 84