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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 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 /* address of */ 45 #define mutex_lockw lock.lock64.pad[4] 46 #define mutex_waiters lock.lock64.pad[7] 47 48 /* process-shared lock owner pid */ 49 #define mutex_ownerpid lock.lock32.ownerpid 50 51 /* Max. recusrion count for recursive mutexes */ 52 #define RECURSION_MAX 255 53 54 /* special defines for LWP condition variables */ 55 #define cond_type flags.type 56 #define cond_magic flags.magic 57 #define cond_clockid flags.flag[1] 58 #define cond_waiters_user flags.flag[2] 59 #define cond_waiters_kernel flags.flag[3] 60 61 /* special defines for LWP semaphores */ 62 #define sema_count count 63 #define sema_type type 64 #define sema_waiters flags[7] 65 66 /* special defines for LWP rwlocks */ 67 #define rwlock_readers readers 68 #define rwlock_type type 69 #define rwlock_magic magic 70 #define rwlock_mwaiters mutex.mutex_waiters 71 #define rwlock_mlockw mutex.mutex_lockw 72 #define rwlock_mowner mutex.mutex_owner 73 #define rwlock_mownerpid mutex.mutex_ownerpid 74 #define rwlock_owner readercv.data 75 #define rwlock_ownerpid writercv.data 76 77 #define URW_HAS_WAITERS 0x80000000 78 #define URW_WRITE_WANTED 0x40000000 79 #define URW_WRITE_LOCKED 0x20000000 80 #define URW_READERS_MASK 0x1fffffff 81 82 #ifdef __cplusplus 83 } 84 #endif 85 86 #endif /* _SYS_SYNCH32_H */ 87