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POSIX+ says goodbye and leaves. It used to be fun, now it's just painful

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svn path=/trunk/; revision=3653
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KJK::Hyperion 2002-10-24 23:29:19 +00:00
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149
posix/include/fcntl.h
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/* $Id: fcntl.h,v 1.4 2002/03/22 01:26:28 hyperion Exp $
*/
/*
* fcntl.h
*
* file control options. Conforming to the Single UNIX(r) Specification
* Version 2, System Interface & Headers Issue 5
*
* This file is part of the ReactOS Operating System.
*
* Contributors:
* Created by KJK::Hyperion <noog@libero.it>
*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#ifndef __FCNTL_H_INCLUDED__
#define __FCNTL_H_INCLUDED__
/* INCLUDES */
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
/* OBJECTS */
/* TYPES */
/*
the structure flock describes a file lock
*/
struct flock
{
short l_type; /* type of lock; F_RDLCK, F_WRLCK, F_UNLCK */
short l_whence; /* flag for starting offset */
off_t l_start; /* relative offset in bytes */
off_t l_len; /* size; if 0 then until EOF */
pid_t l_pid; /* process ID of the process holding the lock;
returned with F_GETLK */
};
/* CONSTANTS */
/*
values for cmd used by fcntl()
*/
enum __fcntl_cmd
{
F_DUPFD, /* duplicate file descriptor */
F_GETFD, /* get file descriptor flags */
F_GETLK, /* get record locking information */
F_SETFD, /* set file descriptor flags */
F_GETFL, /* get file status flags and file access modes */
F_SETFL, /* set file status flags */
F_SETLK, /* set record locking information */
F_SETLKW, /* set record locking information; wait if blocked */
/* ReactOS-specific */
F_NEWFD, /* create new file descriptor */
F_DELFD, /* delete file descriptor */
F_GETALL, /* get a copy of the internal descriptor object */
F_SETALL, /* initialize internal descriptor object */
F_GETXP, /* get file descriptor extra data pointer */
F_SETXP, /* set file descriptor extra data pointer */
F_GETXS, /* get file descriptor extra data size */
F_SETXS, /* set file descriptor extra data size */
F_GETFH, /* get file handle */
F_SETFH /* set file handle */
};
/*
file descriptor flags used for fcntl()
*/
/* Close the file descriptor upon execution of an exec family function. */
#define FD_CLOEXEC (0x00000001)
/*
values for l_type used for record locking with fcntl()
*/
/* Shared or read lock. */
#define F_RDLCK (1)
/* Unlock. */
#define F_UNLCK (2)
/* Exclusive or write lock. */
#define F_WRLCK (3)
/*
file flags used for open()
*/
/* Create file if it does not exist. */
#define O_CREAT (0x00000100)
/* Truncate flag. */
#define O_TRUNC (0x00000200)
/* Exclusive use flag. */
#define O_EXCL (0x00000400)
/* Do not assign controlling terminal. */
#define O_NOCTTY (0x00000800)
/* ReactOS-specific */
/* File must be a directory */
#define _O_DIRFILE (0x00100000)
/*
file status flags used for open() and fcntl()
*/
/* Set append mode. */
#define O_APPEND (0x00000008)
/* Non-blocking mode. */
#define O_NONBLOCK (0x00001000)
/* Write according to synchronised I/O data integrity completion. */
#define O_DSYNC (0x00002000)
/* Synchronised read I/O operations. */
#define O_RSYNC (0x00004000)
/* Write according to synchronised I/O file integrity completion. */
#define O_SYNC (0x00008000)
/*
file access modes used for open() and fcntl()
*/
/* Open for reading only. */
#define O_RDONLY (0x00000000)
/* Open for writing only. */
#define O_WRONLY (0x00000001)
/* Open for reading and writing. */
#define O_RDWR (0x00000002)
/*
mask for use with file access modes
*/
#define O_ACCMODE (0x00000007)
/* PROTOTYPES */
int creat(const char *, mode_t);
int fcntl(int, int, ...);
int open(const char *, int, ...);
int _Wcreat(const wchar_t *, mode_t);
int _Wopen(const wchar_t *, int, ...);
/* MACROS */
#endif /* __FCNTL_H_INCLUDED__ */
/* EOF */