1/* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 1999 by Ralf Baechle 7 */ 8#ifndef _ASM_FCNTL_H 9#define _ASM_FCNTL_H 10 11/* open/fcntl - O_SYNC is only implemented on blocks devices and on files 12 located on an ext2 file system */ 13#define O_ACCMODE 0x0003 14#define O_RDONLY 0x0000 15#define O_WRONLY 0x0001 16#define O_RDWR 0x0002 17#define O_APPEND 0x0008 18#define O_SYNC 0x0010 19#define O_NONBLOCK 0x0080 20#define O_CREAT 0x0100 /* not fcntl */ 21#define O_TRUNC 0x0200 /* not fcntl */ 22#define O_EXCL 0x0400 /* not fcntl */ 23#define O_NOCTTY 0x0800 /* not fcntl */ 24#define FASYNC 0x1000 /* fcntl, for BSD compatibility */ 25#define O_LARGEFILE 0x2000 /* allow large file opens */ 26#define O_DIRECT 0x8000 /* direct disk access hint */ 27#define O_DIRECTORY 0x10000 /* must be a directory */ 28#define O_NOFOLLOW 0x20000 /* don't follow links */ 29 30#define O_NDELAY O_NONBLOCK 31 32#define F_DUPFD 0 /* dup */ 33#define F_GETFD 1 /* get close_on_exec */ 34#define F_SETFD 2 /* set/clear close_on_exec */ 35#define F_GETFL 3 /* get file->f_flags */ 36#define F_SETFL 4 /* set file->f_flags */ 37#define F_GETLK 14 38#define F_SETLK 6 39#define F_SETLKW 7 40 41#define F_SETOWN 24 /* for sockets. */ 42#define F_GETOWN 23 /* for sockets. */ 43#define F_SETSIG 10 /* for sockets. */ 44#define F_GETSIG 11 /* for sockets. */ 45 46#ifdef __KERNEL__ 47#define F_GETLK64 33 /* using 'struct flock64' */ 48#define F_SETLK64 34 49#define F_SETLKW64 35 50#endif 51 52/* for F_[GET|SET]FL */ 53#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ 54 55/* for posix fcntl() and lockf() */ 56#define F_RDLCK 0 57#define F_WRLCK 1 58#define F_UNLCK 2 59 60/* for old implementation of bsd flock () */ 61#define F_EXLCK 4 /* or 3 */ 62#define F_SHLCK 8 /* or 4 */ 63 64/* for leases */ 65#define F_INPROGRESS 16 66 67/* operations for bsd flock(), also used by the kernel implementation */ 68#define LOCK_SH 1 /* shared lock */ 69#define LOCK_EX 2 /* exclusive lock */ 70#define LOCK_NB 4 /* or'd with one of the above to prevent 71 blocking */ 72#define LOCK_UN 8 /* remove lock */ 73 74#define LOCK_MAND 32 /* This is a mandatory flock */ 75#define LOCK_READ 64 /* ... Which allows concurrent read operations */ 76#define LOCK_WRITE 128 /* ... Which allows concurrent write operations */ 77#define LOCK_RW 192 /* ... Which allows concurrent read & write ops */ 78 79typedef struct flock { 80 short l_type; 81 short l_whence; 82 __kernel_off_t l_start; 83 __kernel_off_t l_len; 84 long l_sysid; 85 __kernel_pid_t l_pid; 86 long pad[4]; 87} flock_t; 88 89#ifdef __KERNEL__ 90struct flock32 { /* for 32-bit compat code */ 91 short l_type; 92 short l_whence; 93 __kernel_off_t32 l_start; 94 __kernel_off_t32 l_len; 95 __s32 l_sysid; 96 __kernel_pid_t32 l_pid; 97 short __unused; 98 __s32 pad[4]; 99}; 100 101#define flock64 flock 102#endif 103 104#define F_LINUX_SPECIFIC_BASE 1024 105 106#endif /* _ASM_FCNTL_H */ 107