126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995, 96, 97, 98, 99, 2003 Ralf Baechle
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*/
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#ifndef _ASM_FCNTL_H
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#define _ASM_FCNTL_H
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/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
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located on an ext2 file system */
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#define O_ACCMODE 0x0003
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#define O_RDONLY 0x0000
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#define O_WRONLY 0x0001
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#define O_RDWR 0x0002
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#define O_APPEND 0x0008
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#define O_SYNC 0x0010
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#define O_NONBLOCK 0x0080
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#define O_CREAT 0x0100 /* not fcntl */
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#define O_TRUNC 0x0200 /* not fcntl */
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#define O_EXCL 0x0400 /* not fcntl */
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#define O_NOCTTY 0x0800 /* not fcntl */
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#define FASYNC 0x1000 /* fcntl, for BSD compatibility */
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#define O_LARGEFILE 0x2000 /* allow large file opens */
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#define O_DIRECT 0x8000 /* direct disk access hint */
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#define O_DIRECTORY 0x10000 /* must be a directory */
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#define O_NOFOLLOW 0x20000 /* don't follow links */
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#define O_NOATIME 0x40000
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#define O_NDELAY O_NONBLOCK
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#define F_DUPFD 0 /* dup */
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#define F_GETFD 1 /* get close_on_exec */
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#define F_SETFD 2 /* set/clear close_on_exec */
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#define F_GETFL 3 /* get file->f_flags */
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#define F_SETFL 4 /* set file->f_flags */
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#define F_GETLK 14
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#define F_SETLK 6
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#define F_SETLKW 7
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#define F_SETOWN 24 /* for sockets. */
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#define F_GETOWN 23 /* for sockets. */
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#define F_SETSIG 10 /* for sockets. */
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#define F_GETSIG 11 /* for sockets. */
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#ifndef __mips64
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#define F_GETLK64 33 /* using 'struct flock64' */
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#define F_SETLK64 34
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#define F_SETLKW64 35
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#endif
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/* for F_[GET|SET]FL */
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#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
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/* for posix fcntl() and lockf() */
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#define F_RDLCK 0
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#define F_WRLCK 1
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#define F_UNLCK 2
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/* for old implementation of bsd flock () */
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#define F_EXLCK 4 /* or 3 */
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#define F_SHLCK 8 /* or 4 */
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/* for leases */
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#define F_INPROGRESS 16
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/* operations for bsd flock(), also used by the kernel implementation */
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#define LOCK_SH 1 /* shared lock */
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#define LOCK_EX 2 /* exclusive lock */
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#define LOCK_NB 4 /* or'd with one of the above to prevent
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blocking */
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#define LOCK_UN 8 /* remove lock */
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#define LOCK_MAND 32 /* This is a mandatory flock */
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#define LOCK_READ 64 /* ... Which allows concurrent read operations */
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#define LOCK_WRITE 128 /* ... Which allows concurrent write operations */
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#define LOCK_RW 192 /* ... Which allows concurrent read & write ops */
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/*
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* The flavours of struct flock. "struct flock" is the ABI compliant
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* variant. Finally struct flock64 is the LFS variant of struct flock. As
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* a historic accident and inconsistence with the ABI definition it doesn't
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* contain all the same fields as struct flock.
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*/
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#ifndef __mips64
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typedef struct flock {
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short l_type;
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short l_whence;
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__kernel_off_t l_start;
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__kernel_off_t l_len;
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long l_sysid;
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__kernel_pid_t l_pid;
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long pad[4];
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} flock_t;
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typedef struct flock64 {
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short l_type;
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short l_whence;
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loff_t l_start;
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loff_t l_len;
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pid_t l_pid;
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} flock64_t;
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#else /* 64-bit definitions */
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typedef struct flock {
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short l_type;
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short l_whence;
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__kernel_off_t l_start;
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__kernel_off_t l_len;
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__kernel_pid_t l_pid;
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} flock_t;
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#ifdef __KERNEL__
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#define flock64 flock
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#endif
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#endif
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#define F_LINUX_SPECIFIC_BASE 1024
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#endif /* _ASM_FCNTL_H */
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