180 lines
5.4 KiB
C
180 lines
5.4 KiB
C
/* fcntlcom.h - basic control types header */
|
|
|
|
/* Copyright 1984-1999, 2005 Wind River Systems, Inc. */
|
|
/*
|
|
* Copyright (c) 1983 Regents of the University of California.
|
|
* All rights reserved. The Berkeley software License Agreement
|
|
* specifies the terms and conditions for redistribution.
|
|
*/
|
|
|
|
/*
|
|
modification history
|
|
--------------------
|
|
01e,01mar05,hya added new defines to support POSIX compliance
|
|
01d,13dec99,jkf added _ASMLANGUAGE
|
|
01c,25jan93,smb added documentation for POSIX
|
|
01b,22sep92,rrr added support for c++
|
|
01a,29jul92,smb taken from UCB stdio.
|
|
*/
|
|
|
|
#ifndef __INCfcntlcomh
|
|
#define __INCfcntlcomh
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "types/vxANSI.h"
|
|
|
|
/*
|
|
* Rewack the FXXXXX values as _FXXXX so that _POSIX_SOURCE works.
|
|
*/
|
|
#define _FOPEN (-1) /* from sys/file.h, kernel use only */
|
|
#define _FREAD 0x0001 /* read enabled */
|
|
#define _FWRITE 0x0002 /* write enabled */
|
|
#define _FNDELAY 0x0004 /* non blocking I/O (4.2 style) */
|
|
#define _FAPPEND 0x0008 /* append (writes guaranteed at the end) */
|
|
#define _FMARK 0x0010 /* internal; mark during gc() */
|
|
#define _FDEFER 0x0020 /* internal; defer for next gc pass */
|
|
#define _FASYNC 0x0040 /* signal pgrp when data ready */
|
|
#define _FSHLOCK 0x0080 /* BSD flock() shared lock present */
|
|
#define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */
|
|
#define _FCREAT 0x0200 /* open with file create */
|
|
#define _FTRUNC 0x0400 /* open with truncation */
|
|
#define _FEXCL 0x0800 /* error on open if file exists */
|
|
#define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */
|
|
#define _FSYNC 0x2000 /* do all writes synchronously */
|
|
#define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */
|
|
#define _FNOCTTY 0x8000 /* don't assign a ctty on this open */
|
|
#define _FDSYNC 0x10000 /* file data only integrity while writing */
|
|
#define _FRSYNC 0x20000 /* sync read operations at same level by */
|
|
/* _FSYNC and _FDSYNC flags */
|
|
|
|
#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
|
|
#define DEFFILEMODE 0666
|
|
|
|
/*
|
|
* Flag values for open(2) and fcntl(2)
|
|
* The kernel adds 1 to the open modes to turn it into some
|
|
* combination of FREAD and FWRITE.
|
|
*/
|
|
#define O_RDONLY 0 /* +1 == FREAD */
|
|
#define O_WRONLY 1 /* +1 == FWRITE */
|
|
#define O_RDWR 2 /* +1 == FREAD|FWRITE */
|
|
#define O_CREAT _FCREAT
|
|
|
|
/*
|
|
* added for future POSIX extensions
|
|
*/
|
|
#define O_APPEND _FAPPEND
|
|
#define O_TRUNC _FTRUNC
|
|
#define O_EXCL _FEXCL
|
|
#define O_NONBLOCK _FNONBLOCK
|
|
#define O_NOCTTY _FNOCTTY
|
|
|
|
#ifndef _POSIX_SOURCE
|
|
|
|
#define O_SYNC _FSYNC
|
|
#define O_DSYNC _FDSYNC
|
|
#define O_RSYNC _FRSYNC
|
|
|
|
/*
|
|
* Flags that work for fcntl(fd, F_SETFL, FXXXX)
|
|
*/
|
|
#define FAPPEND _FAPPEND
|
|
#define FSYNC _FSYNC
|
|
#define FDSYNC _FDSYNC
|
|
#define FRSYNC _FRSYNC
|
|
#define FASYNC _FASYNC
|
|
#define FNBIO _FNBIO
|
|
#define FNONBIO _FNONBLOCK
|
|
#define FNDELAY _FNDELAY
|
|
|
|
/*
|
|
* Flags that are disallowed for fcntl's (FCNTLCANT);
|
|
* used for opens, internal state, or locking.
|
|
*/
|
|
#define FREAD _FREAD
|
|
#define FWRITE _FWRITE
|
|
#define FMARK _FMARK
|
|
#define FDEFER _FDEFER
|
|
#define FSHLOCK _FSHLOCK
|
|
#define FEXLOCK _FEXLOCK
|
|
|
|
/*
|
|
* The rest of the flags, used only for opens
|
|
*/
|
|
#define FOPEN _FOPEN
|
|
#define FCREAT _FCREAT
|
|
#define FTRUNC _FTRUNC
|
|
#define FEXCL _FEXCL
|
|
#define FNOCTTY _FNOCTTY
|
|
|
|
#endif /*!_POSIX_SOURCE*/
|
|
|
|
/* XXX close on exec request; must match UF_EXCLOSE in user.h */
|
|
#define FD_CLOEXEC 1 /* posix */
|
|
|
|
/* fcntl(2) requests */
|
|
#define F_DUPFD 0 /* Duplicate fildes */
|
|
#define F_GETFD 1 /* Get fildes flags (close on exec) */
|
|
#define F_SETFD 2 /* Set fildes flags (close on exec) */
|
|
#define F_GETFL 3 /* Get file flags */
|
|
#define F_SETFL 4 /* Set file flags */
|
|
#ifndef _POSIX_SOURCE
|
|
#define F_GETOWN 5 /* Get owner - for ASYNC */
|
|
#define F_SETOWN 6 /* Set owner - for ASYNC */
|
|
#endif /* !_POSIX_SOURCE */
|
|
#define F_GETLK 7 /* Get record-locking information */
|
|
#define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */
|
|
#define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */
|
|
#ifndef _POSIX_SOURCE
|
|
#define F_RGETLK 10 /* Test a remote lock to see if it is blocked */
|
|
#define F_RSETLK 11 /* Set or unlock a remote lock */
|
|
#define F_CNVT 12 /* Convert a fhandle to an open fd */
|
|
#define F_RSETLKW 13 /* Set or Clear remote record-lock(Blocking) */
|
|
#endif /* !_POSIX_SOURCE */
|
|
|
|
/* fcntl(2) flags (l_type field of flock structure) */
|
|
#define F_RDLCK 1 /* read lock */
|
|
#define F_WRLCK 2 /* write lock */
|
|
#define F_UNLCK 3 /* remove lock(s) */
|
|
#ifndef _POSIX_SOURCE
|
|
#define F_UNLKSYS 4 /* remove remote locks for a given system */
|
|
#endif /* !_POSIX_SOURCE */
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
|
|
/* file segment locking set data type - information passed to system by user */
|
|
struct flock {
|
|
short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
|
|
short l_whence; /* flag to choose starting offset */
|
|
long l_start; /* relative offset, in bytes */
|
|
long l_len; /* length, in bytes; 0 means lock to EOF */
|
|
short l_pid; /* returned with F_GETLK */
|
|
short l_xxx; /* reserved for future use */
|
|
};
|
|
|
|
#ifndef _POSIX_SOURCE
|
|
/* extended file segment locking set data type */
|
|
struct eflock {
|
|
short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
|
|
short l_whence; /* flag to choose starting offset */
|
|
long l_start; /* relative offset, in bytes */
|
|
long l_len; /* length, in bytes; 0 means lock to EOF */
|
|
short l_pid; /* returned with F_GETLK */
|
|
short l_xxx; /* reserved for future use */
|
|
long l_rpid; /* Remote process id wanting this lock */
|
|
long l_rsys; /* Remote system id wanting this lock */
|
|
};
|
|
#endif /* !_POSIX_SOURCE */
|
|
|
|
#endif /* #ifndef _ASMLANGUAGE */
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCfcntlcomh */
|