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#ifndef _ASM_GENERIC_FCNTL_H
#define _ASM_GENERIC_FCNTL_H
#include <linux/types.h>
/*
* FMODE_EXEC is 0x20
* FMODE_NONOTIFY is 0x1000000
* These cannot be used by userspace O_* until internal and external open
* flags are split.
* -Eric Paris
*/
/*
* When introducing new O_* bits, please check its uniqueness in fcntl_init().
*/
#define O_ACCMODE 00000003
#define O_RDONLY 00000000
#define O_WRONLY 00000001
#define O_RDWR 00000002
#ifndef O_CREAT
#define O_CREAT 00000100 /* not fcntl */
#endif
#ifndef O_EXCL
#define O_EXCL 00000200 /* not fcntl */
#endif
#ifndef O_NOCTTY
#define O_NOCTTY 00000400 /* not fcntl */
#endif
#ifndef O_TRUNC
#define O_TRUNC 00001000 /* not fcntl */
#endif
#ifndef O_APPEND
#define O_APPEND 00002000
#endif
#ifndef O_NONBLOCK
#define O_NONBLOCK 00004000
#endif
#ifndef O_DSYNC
#define O_DSYNC 00010000 /* used to be O_SYNC, see below */
#endif
#ifndef FASYNC
#define FASYNC 00020000 /* fcntl, for BSD compatibility */
#endif
#ifndef O_DIRECT
#define O_DIRECT 00040000 /* direct disk access hint */
#endif
#ifndef O_LARGEFILE
#define O_LARGEFILE 00100000
#endif
#ifndef O_DIRECTORY
#define O_DIRECTORY 00200000 /* must be a directory */
#endif
#ifndef O_NOFOLLOW
#define O_NOFOLLOW 00400000 /* don't follow links */
#endif
#ifndef O_NOATIME
#define O_NOATIME 01000000
#endif
#ifndef O_CLOEXEC
#define O_CLOEXEC 02000000 /* set close_on_exec */
#endif
/*
* Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
* the O_SYNC flag. We continue to use the existing numerical value
* for O_DSYNC semantics now, but using the correct symbolic name for it.
* This new value is used to request true Posix O_SYNC semantics. It is
* defined in this strange way to make sure applications compiled against
* new headers get at least O_DSYNC semantics on older kernels.
*
* This has the nice side-effect that we can simply test for O_DSYNC
* wherever we do not care if O_DSYNC or O_SYNC is used.
*
* Note: __O_SYNC must never be used directly.
*/
#ifndef O_SYNC
#define __O_SYNC 04000000
#define O_SYNC (__O_SYNC|O_DSYNC)
#endif
#ifndef O_PATH
#define O_PATH 010000000
#endif
#ifndef __O_TMPFILE
#define __O_TMPFILE 020000000
#endif
/* a horrid kludge trying to make sure that this will fail on old kernels */
#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT)
#ifndef O_NDELAY
#define O_NDELAY O_NONBLOCK
#endif
#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 */
#ifndef F_GETLK
#define F_GETLK 5
#define F_SETLK 6
#define F_SETLKW 7
#endif
#ifndef F_SETOWN
#define F_SETOWN 8 /* for sockets. */
#define F_GETOWN 9 /* for sockets. */
#endif
#ifndef F_SETSIG
#define F_SETSIG 10 /* for sockets. */
#define F_GETSIG 11 /* for sockets. */
#endif
#ifndef CONFIG_64BIT
#ifndef F_GETLK64
#define F_GETLK64 12 /* using 'struct flock64' */
#define F_SETLK64 13
#define F_SETLKW64 14
#endif
#endif
#ifndef F_SETOWN_EX
#define F_SETOWN_EX 15
#define F_GETOWN_EX 16
#endif
#ifndef F_GETOWNER_UIDS
#define F_GETOWNER_UIDS 17
#endif
/*
* Open File Description Locks
*
* Usually record locks held by a process are released on *any* close and are
* not inherited across a fork().
*
* These cmd values will set locks that conflict with process-associated
* record locks, but are "owned" by the open file description, not the
* process. This means that they are inherited across fork() like BSD (flock)
* locks, and they are only released automatically when the last reference to
* the the open file against which they were acquired is put.
*/
#define F_OFD_GETLK 36
#define F_OFD_SETLK 37
#define F_OFD_SETLKW 38
#define F_OWNER_TID 0
#define F_OWNER_PID 1
#define F_OWNER_PGRP 2
struct f_owner_ex {
int type;
__kernel_pid_t pid;
};
/* for F_[GET|SET]FL */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* for posix fcntl() and lockf() */
#ifndef F_RDLCK
#define F_RDLCK 0
#define F_WRLCK 1
#define F_UNLCK 2
#endif
/* for old implementation of bsd flock () */
#ifndef F_EXLCK
#define F_EXLCK 4 /* or 3 */
#define F_SHLCK 8 /* or 4 */
#endif
/* 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 */
#define F_LINUX_SPECIFIC_BASE 1024
#ifndef HAVE_ARCH_STRUCT_FLOCK
#ifndef __ARCH_FLOCK_PAD
#define __ARCH_FLOCK_PAD
#endif
struct flock {
short l_type;
short l_whence;
__kernel_off_t l_start;
__kernel_off_t l_len;
__kernel_pid_t l_pid;
__ARCH_FLOCK_PAD
};
#endif
#ifndef HAVE_ARCH_STRUCT_FLOCK64
#ifndef __ARCH_FLOCK64_PAD
#define __ARCH_FLOCK64_PAD
#endif
struct flock64 {
short l_type;
short l_whence;
__kernel_loff_t l_start;
__kernel_loff_t l_len;
__kernel_pid_t l_pid;
__ARCH_FLOCK64_PAD
};
#endif
#endif /* _ASM_GENERIC_FCNTL_H */