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Diffstat (limited to 'usr/src/ucbhead/sys/file.h')
| -rw-r--r-- | usr/src/ucbhead/sys/file.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/usr/src/ucbhead/sys/file.h b/usr/src/ucbhead/sys/file.h new file mode 100644 index 0000000000..10863380dd --- /dev/null +++ b/usr/src/ucbhead/sys/file.h @@ -0,0 +1,178 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 1998 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ +/* All Rights Reserved */ + +/* + * University Copyright- Copyright (c) 1982, 1986, 1988 + * The Regents of the University of California + * All Rights Reserved + * + * University Acknowledgment- Portions of this document are derived from + * software developed by the University of California, Berkeley, and its + * contributors. + */ + +#ifndef _SYS_FILE_H +#define _SYS_FILE_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#ifndef _SYS_TYPES_H +#include <sys/types.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * One file structure is allocated for each open/creat/pipe call. + * Main use is to hold the read/write pointer associated with + * each open file. + */ + +typedef struct file +{ + struct file *f_next; /* pointer to next entry */ + struct file *f_prev; /* pointer to previous entry */ + ushort_t f_flag; + cnt_t f_count; /* reference count */ + struct vnode *f_vnode; /* pointer to vnode structure */ + off_t f_offset; /* read/write character pointer */ + struct cred *f_cred; /* credentials of user who opened it */ + struct aioreq *f_aiof; /* aio file list forward link */ + struct aioreq *f_aiob; /* aio file list backward link */ +/* #ifdef MERGE */ + struct file *f_slnk; /* XENIX semaphore queue */ +/* #endif MERGE */ +} file_t; + + +#ifndef _SYS_FCNTL_H +#include <sys/fcntl.h> +#endif + +/* flags - see also fcntl.h */ + +#ifndef FOPEN +#define FOPEN 0xFFFFFFFF +#define FREAD 0x01 +#define FWRITE 0x02 +#define FNDELAY 0x04 +#define FAPPEND 0x08 +#define FSYNC 0x10 +#define FNONBLOCK 0x80 /* Non-blocking flag (POSIX). */ + +#define FMASK 0xff /* should be disjoint from FASYNC */ + +/* open only modes */ + +#define FCREAT 0x100 +#define FTRUNC 0x200 +#define FEXCL 0x400 +#define FNOCTTY 0x800 /* don't allocate controlling tty (POSIX). */ +#define FASYNC 0x1000 /* asyncio is in progress */ +#define FPRIV 0x1000 /* open with private access */ + +/* file descriptor flags */ +#define FCLOSEXEC 001 /* close on exec */ +#endif + +/* record-locking options. */ +#define F_ULOCK 0 /* Unlock a previously locked region */ +#define F_LOCK 1 /* Lock a region for exclusive use */ +#define F_TLOCK 2 /* Test and lock a region for exclusive use */ +#define F_TEST 3 /* Test a region for other processes locks */ + +/* + * flock operations. + */ +#define LOCK_SH 1 /* shared lock */ +#define LOCK_EX 2 /* exclusive lock */ +#define LOCK_NB 4 /* don't block when locking */ +#define LOCK_UN 8 /* unlock */ + +/* + * Access call. + */ +#define F_OK 0 /* does file exist */ +#define X_OK 1 /* is it executable by caller */ +#define W_OK 2 /* writable by caller */ +#define R_OK 4 /* readable by caller */ + +/* + * Lseek call. + */ +#ifndef L_SET +#define L_SET 0 /* absolute offset */ +#define L_INCR 1 /* relative to current offset */ +#define L_XTND 2 /* relative to end of file */ +#endif + + +/* miscellaneous defines */ + +#define NULLFP ((struct file *)0) + +/* + * Count of number of entries in file list. + */ +extern unsigned int filecnt; + +/* + * routines dealing with user per-open file flags and + * user open files. getf() is declared in systm.h. It + * probably belongs here. + */ +#if defined(__STDC__) +extern void setf(int, file_t *); +extern void setpof(int, char); +extern char getpof(int); +extern int fassign(struct vnode **, int, int *); +#else +extern void setf(), setpof(); +extern char getpof(); +extern int fassign(); +#endif + +extern off_t lseek(); + +#if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \ + !defined(__PRAGMA_REDEFINE_EXTNAME)) +#if defined(__STDC__) +extern off64_t lseek64(int, off64_t, int); +#else +extern off64_t llseek64(); +#endif +#endif /* _LARGEFILE64_SOURCE... */ + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_FILE_H */ |