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/*

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 *

 * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle

 */

#ifndef __ASM_FCNTL_H

#define __ASM_FCNTL_H

/* open/fcntl - O_SYNC is only implemented on blocks devices and on files

   located on an ext2 file system */

#define O_ACCMODE       0x0003

#define O_RDONLY        0x0000

#define O_WRONLY        0x0001

#define O_RDWR          0x0002

#define O_APPEND        0x0008

#define O_SYNC          0x0010

#define O_NONBLOCK      0x0080

#define O_CREAT         0x0100  /* not fcntl */

#define O_TRUNC         0x0200  /* not fcntl */

#define O_EXCL          0x0400  /* not fcntl */

#define O_NOCTTY        0x0800  /* not fcntl */

#define FASYNC          0x1000  /* fcntl, for BSD compatibility */

#define O_LARGEFILE     0x2000  /* allow large file opens */

#define O_DIRECT        0x8000  /* direct disk access hint */

#define O_DIRECTORY     0x10000 /* must be a directory */

#define O_NOFOLLOW      0x20000 /* don't follow links */

#define O_NDELAY        O_NONBLOCK

#define F_DUPFD         0        /* dup */

#define F_GETFD         1       /* get close_on_exec */

#define F_SETFD         2       /* set/clear close_on_exec */

#define F_GETFL         3       /* get file->f_flags */

#define F_SETFL         4       /* set file->f_flags */

#define F_GETLK         14

#define F_SETLK         6

#define F_SETLKW        7

#define F_SETOWN        24      /*  for sockets. */

#define F_GETOWN        23      /*  for sockets. */

#define F_SETSIG        10      /*  for sockets. */

#define F_GETSIG        11      /*  for sockets. */

#define F_GETLK64       33      /*  using 'struct flock64' */

#define F_SETLK64       34

#define F_SETLKW64      35

/* for F_[GET|SET]FL */

#define FD_CLOEXEC      1       /* actually anything with low bit set goes */

/* for posix fcntl() and lockf() */

#define F_RDLCK         0

#define F_WRLCK         1

#define F_UNLCK         2

/* for old implementation of bsd flock () */

#define F_EXLCK         4       /* or 3 */

#define F_SHLCK         8       /* or 4 */

/* for leases */

#define F_INPROGRESS    16

/* operations for bsd flock(), also used by the kernel implementation */

#define LOCK_SH         1       /* shared lock */

#define LOCK_EX         2       /* exclusive lock */

#define LOCK_NB         4       /* or'd with one of the above to prevent

                                   blocking */

#define LOCK_UN         8       /* remove lock */

#define LOCK_MAND       32      /* This is a mandatory flock */

#define LOCK_READ       64      /* ... Which allows concurrent read operations */

#define LOCK_WRITE      128     /* ... Which allows concurrent write operations */

#define LOCK_RW         192     /* ... Which allows concurrent read & write ops */

/*

 * The flavours of struct flock.  "struct flock" is the ABI compliant

 * variant.  Finally struct flock64 is the LFS variant of struct flock.  As

 * a historic accident and inconsistence with the ABI definition it doesn't

 * contain all the same fields as struct flock.

 */

typedef struct flock {

        short   l_type;

        short   l_whence;

        __kernel_off_t l_start;

        __kernel_off_t l_len;

        long    l_sysid;

        __kernel_pid_t l_pid;

        long    pad[4];

} flock_t;

typedef struct flock64 {

        short   l_type;

        short   l_whence;

        loff_t  l_start;

        loff_t  l_len;

        pid_t   l_pid;

} flock64_t;

#define F_LINUX_SPECIFIC_BASE   1024

#endif /* __ASM_FCNTL_H */