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 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#ifndef _SYS_WINLOCKIO_H 28#define _SYS_WINLOCKIO_H 29 30#pragma ident "%Z%%M% %I% %E% SMI" 31 32#include <sys/types.h> 33#include <sys/ioccom.h> 34 35#ifdef __cplusplus 36extern "C" { 37#endif 38 39/* 40 * Structure for allocating lock contexts. 41 * The page number portion of sy_ident is the offset for mmap(2). 42 * The page offset portion of sy_ident is the byte-offset relative to 43 * the start of the page returned by mmap(2) and should added to it. 44 */ 45 46struct winlockalloc { 47 uint_t sy_key; /* user-provided key, if any */ 48 uint_t sy_ident; /* system-provided identification */ 49}; 50 51/* 52 * Structure for getting and setting lock timeouts or NOTIMEOUT flag 53 */ 54 55struct winlocktimeout { 56 uint_t sy_ident; /* system-provided identification */ 57 uint_t sy_timeout; /* timeout value in seconds */ 58 int sy_flags; /* Flags for lock context - see defs below */ 59}; 60 61#define WIOC ('L'<<8) 62 63 64#define WINLOCKALLOC (WIOC|0) 65#define WINLOCKFREE (WIOC|1) 66#define WINLOCKSETTIMEOUT (WIOC|2) 67#define WINLOCKGETTIMEOUT (WIOC|3) 68#define WINLOCKDUMP (WIOC|4) 69 70#ifndef GRABPAGEALLOC 71#include <sys/fbio.h> /* defines GRAB* ioctls */ 72#endif 73 74/* flag bits */ 75#define SY_NOTIMEOUT 0x1 /* This client never times out */ 76 77#ifdef _KERNEL 78 79#define UFLAGS 0x00ff /* flags usable by users */ 80#define KFLAGS 0xff00 /* flags used by driver implementation */ 81#define TRASHPAGE 0x0400 /* process has unlock mapping to trashpage */ 82 83#endif /* _KERNEL */ 84 85#ifdef __cplusplus 86} 87#endif 88 89#endif /* _SYS_WINLOCKIO_H */ 90