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 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* special defines for LWP mutexes */ 37 #define mutex_flag flags.flag1 38 #define mutex_ceiling flags.ceiling 39 #define mutex_type flags.mbcp_type_un.mtype_rcount.count_type2 40 #define mutex_rcount flags.mbcp_type_un.mtype_rcount.count_type1 41 #define mutex_magic flags.magic 42 #define mutex_owner data 43 /* used to atomically operate on whole word via cas or swap instruction */ 44 #define mutex_lockword lock.lock32.lockword 45 /* this requires cas64 */ 46 #define mutex_lockword64 lock.owner64 47 /* these are bytes */ 48 #define mutex_lockw lock.lock64.pad[4] 49 #define mutex_waiters lock.lock64.pad[7] 50 #define mutex_spinners lock.lock64.pad[5] 51 52 /* process-shared lock owner pid */ 53 #define mutex_ownerpid lock.lock32.ownerpid 54 55 /* Max. recusrion count for recursive mutexes */ 56 #define RECURSION_MAX 255 57 58 /* special defines for LWP condition variables */ 59 #define cond_type flags.type 60 #define cond_magic flags.magic 61 #define cond_clockid flags.flag[1] 62 #define cond_waiters_user flags.flag[2] 63 #define cond_waiters_kernel flags.flag[3] 64 65 /* special defines for LWP semaphores */ 66 #define sema_count count 67 #define sema_type type 68 #define sema_waiters flags[7] 69 70 /* special defines for LWP rwlocks */ 71 #define rwlock_readers readers 72 #define rwlock_type type 73 #define rwlock_magic magic 74 #define rwlock_owner readercv.data 75 #define rwlock_ownerpid writercv.data 76 77 #define URW_HAS_WAITERS 0x80000000 78 #define URW_WRITE_LOCKED 0x40000000 79 #define URW_READERS_MASK 0x3fffffff 80 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif /* _SYS_SYNCH32_H */ 86