1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1998 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_LOCKFS_H 28*0Sstevel@tonic-gate #define _SYS_LOCKFS_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #ifdef _SYSCALL32 37*0Sstevel@tonic-gate /* 38*0Sstevel@tonic-gate * ILP32 version of lockfs, used in ufs_ioctl() to support 32-bit app in 39*0Sstevel@tonic-gate * LP64 kernel 40*0Sstevel@tonic-gate */ 41*0Sstevel@tonic-gate struct lockfs32 { 42*0Sstevel@tonic-gate uint32_t lf_lock; /* desired lock */ 43*0Sstevel@tonic-gate uint32_t lf_flags; /* misc flags */ 44*0Sstevel@tonic-gate uint32_t lf_key; /* lock key */ 45*0Sstevel@tonic-gate uint32_t lf_comlen; /* length of comment */ 46*0Sstevel@tonic-gate uint32_t lf_comment; /* address of comment */ 47*0Sstevel@tonic-gate }; 48*0Sstevel@tonic-gate #endif /* _SYSCALL32 */ 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate struct lockfs { 51*0Sstevel@tonic-gate ulong_t lf_lock; /* desired lock */ 52*0Sstevel@tonic-gate ulong_t lf_flags; /* misc flags */ 53*0Sstevel@tonic-gate ulong_t lf_key; /* lock key */ 54*0Sstevel@tonic-gate ulong_t lf_comlen; /* length of comment */ 55*0Sstevel@tonic-gate caddr_t lf_comment; /* address of comment */ 56*0Sstevel@tonic-gate }; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* 59*0Sstevel@tonic-gate * lf_lock and lf_locking 60*0Sstevel@tonic-gate */ 61*0Sstevel@tonic-gate #define LOCKFS_ULOCK 0 /* unlock */ 62*0Sstevel@tonic-gate #define LOCKFS_WLOCK 1 /* write lock */ 63*0Sstevel@tonic-gate #define LOCKFS_NLOCK 2 /* name lock */ 64*0Sstevel@tonic-gate #define LOCKFS_DLOCK 3 /* delete lock */ 65*0Sstevel@tonic-gate #define LOCKFS_HLOCK 4 /* hard lock */ 66*0Sstevel@tonic-gate #define LOCKFS_ELOCK 5 /* error lock */ 67*0Sstevel@tonic-gate #define LOCKFS_ROELOCK 6 /* error lock (read-only) - unimplemented */ 68*0Sstevel@tonic-gate #define LOCKFS_MAXLOCK 6 /* maximum lock number */ 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate /* 71*0Sstevel@tonic-gate * lf_flags 72*0Sstevel@tonic-gate */ 73*0Sstevel@tonic-gate #define LOCKFS_BUSY 0x00000001 /* lock is being set */ 74*0Sstevel@tonic-gate #define LOCKFS_MOD 0x00000002 /* file system modified */ 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate #define LOCKFS_MAXCOMMENTLEN 1024 /* maximum comment length */ 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* 79*0Sstevel@tonic-gate * some nice checking macros 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate #define LOCKFS_IS_BUSY(LF) ((LF)->lf_flags & LOCKFS_BUSY) 83*0Sstevel@tonic-gate #define LOCKFS_IS_MOD(LF) ((LF)->lf_flags & LOCKFS_MOD) 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate #define LOCKFS_CLR_BUSY(LF) ((LF)->lf_flags &= ~LOCKFS_BUSY) 86*0Sstevel@tonic-gate #define LOCKFS_CLR_MOD(LF) ((LF)->lf_flags &= ~LOCKFS_MOD) 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate #define LOCKFS_SET_MOD(LF) ((LF)->lf_flags |= LOCKFS_MOD) 89*0Sstevel@tonic-gate #define LOCKFS_SET_BUSY(LF) ((LF)->lf_flags |= LOCKFS_BUSY) 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate #define LOCKFS_IS_WLOCK(LF) ((LF)->lf_lock == LOCKFS_WLOCK) 92*0Sstevel@tonic-gate #define LOCKFS_IS_HLOCK(LF) ((LF)->lf_lock == LOCKFS_HLOCK) 93*0Sstevel@tonic-gate #define LOCKFS_IS_ROELOCK(LF) ((LF)->lf_lock == LOCKFS_ROELOCK) 94*0Sstevel@tonic-gate #define LOCKFS_IS_ELOCK(LF) ((LF)->lf_lock == LOCKFS_ELOCK) 95*0Sstevel@tonic-gate #define LOCKFS_IS_ULOCK(LF) ((LF)->lf_lock == LOCKFS_ULOCK) 96*0Sstevel@tonic-gate #define LOCKFS_IS_NLOCK(LF) ((LF)->lf_lock == LOCKFS_NLOCK) 97*0Sstevel@tonic-gate #define LOCKFS_IS_DLOCK(LF) ((LF)->lf_lock == LOCKFS_DLOCK) 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate #ifdef __cplusplus 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate #endif 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate #endif /* _SYS_LOCKFS_H */ 104