include/asm-generic/fcntl.h

   1 #ifndef _ASM_GENERIC_FCNTL_H
   2 #define _ASM_GENERIC_FCNTL_H
   3
   4 #include <linux/types.h>
   5
   6 #define O_ACCMODE       00000003
   7 #define O_RDONLY        00000000
   8 #define O_WRONLY        00000001
   9 #define O_RDWR          00000002
  10 #ifndef O_CREAT
  11 #define O_CREAT         00000100        /* not fcntl */
  12 #endif
  13 #ifndef O_EXCL
  14 #define O_EXCL          00000200        /* not fcntl */
  15 #endif
  16 #ifndef O_NOCTTY
  17 #define O_NOCTTY        00000400        /* not fcntl */
  18 #endif
  19 #ifndef O_TRUNC
  20 #define O_TRUNC         00001000        /* not fcntl */
  21 #endif
  22 #ifndef O_APPEND
  23 #define O_APPEND        00002000
  24 #endif
  25 #ifndef O_NONBLOCK
  26 #define O_NONBLOCK      00004000
  27 #endif
  28 #ifndef O_DSYNC
  29 #define O_DSYNC         00010000        /* used to be O_SYNC, see below */
  30 #endif
  31 #ifndef FASYNC
  32 #define FASYNC          00020000        /* fcntl, for BSD compatibility */
  33 #endif
  34 #ifndef O_DIRECT
  35 #define O_DIRECT        00040000        /* direct disk access hint */
  36 #endif
  37 #ifndef O_LARGEFILE
  38 #define O_LARGEFILE     00100000
  39 #endif
  40 #ifndef O_DIRECTORY
  41 #define O_DIRECTORY     00200000        /* must be a directory */
  42 #endif
  43 #ifndef O_NOFOLLOW
  44 #define O_NOFOLLOW      00400000        /* don't follow links */
  45 #endif
  46 #ifndef O_NOATIME
  47 #define O_NOATIME       01000000
  48 #endif
  49 #ifndef O_CLOEXEC
  50 #define O_CLOEXEC       02000000        /* set close_on_exec */
  51 #endif
  52
  53 /*
  54  * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
  55  * the O_SYNC flag.  We continue to use the existing numerical value
  56  * for O_DSYNC semantics now, but using the correct symbolic name for it.
  57  * This new value is used to request true Posix O_SYNC semantics.  It is
  58  * defined in this strange way to make sure applications compiled against
  59  * new headers get at least O_DSYNC semantics on older kernels.
  60  *
  61  * This has the nice side-effect that we can simply test for O_DSYNC
  62  * wherever we do not care if O_DSYNC or O_SYNC is used.
  63  *
  64  * Note: __O_SYNC must never be used directly.
  65  */
  66 #ifndef O_SYNC
  67 #define __O_SYNC        04000000
  68 #define O_SYNC          (__O_SYNC|O_DSYNC)
  69 #endif
  70
  71 #ifndef O_NDELAY
  72 #define O_NDELAY        O_NONBLOCK
  73 #endif
  74
  75 #define F_DUPFD         0       /* dup */
  76 #define F_GETFD         1       /* get close_on_exec */
  77 #define F_SETFD         2       /* set/clear close_on_exec */
  78 #define F_GETFL         3       /* get file->f_flags */
  79 #define F_SETFL         4       /* set file->f_flags */
  80 #ifndef F_GETLK
  81 #define F_GETLK         5
  82 #define F_SETLK         6
  83 #define F_SETLKW        7
  84 #endif
  85 #ifndef F_SETOWN
  86 #define F_SETOWN        8       /* for sockets. */
  87 #define F_GETOWN        9       /* for sockets. */
  88 #endif
  89 #ifndef F_SETSIG
  90 #define F_SETSIG        10      /* for sockets. */
  91 #define F_GETSIG        11      /* for sockets. */
  92 #endif
  93
  94 #ifndef CONFIG_64BIT
  95 #ifndef F_GETLK64
  96 #define F_GETLK64       12      /*  using 'struct flock64' */
  97 #define F_SETLK64       13
  98 #define F_SETLKW64      14
  99 #endif
 100 #endif
 101
 102 #ifndef F_SETOWN_EX
 103 #define F_SETOWN_EX     15
 104 #define F_GETOWN_EX     16
 105 #endif
 106
 107 #define F_OWNER_TID     0
 108 #define F_OWNER_PID     1
 109 #define F_OWNER_PGRP    2
 110
 111 struct f_owner_ex {
 112         int     type;
 113         pid_t   pid;
 114 };
 115
 116 /* for F_[GET|SET]FL */
 117 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
 118
 119 /* for posix fcntl() and lockf() */
 120 #ifndef F_RDLCK
 121 #define F_RDLCK         0
 122 #define F_WRLCK         1
 123 #define F_UNLCK         2
 124 #endif
 125
 126 /* for old implementation of bsd flock () */
 127 #ifndef F_EXLCK
 128 #define F_EXLCK         4       /* or 3 */
 129 #define F_SHLCK         8       /* or 4 */
 130 #endif
 131
 132 /* for leases */
 133 #ifndef F_INPROGRESS
 134 #define F_INPROGRESS    16
 135 #endif
 136
 137 /* operations for bsd flock(), also used by the kernel implementation */
 138 #define LOCK_SH         1       /* shared lock */
 139 #define LOCK_EX         2       /* exclusive lock */
 140 #define LOCK_NB         4       /* or'd with one of the above to prevent
 141                                    blocking */
 142 #define LOCK_UN         8       /* remove lock */
 143
 144 #define LOCK_MAND       32      /* This is a mandatory flock ... */
 145 #define LOCK_READ       64      /* which allows concurrent read operations */
 146 #define LOCK_WRITE      128     /* which allows concurrent write operations */
 147 #define LOCK_RW         192     /* which allows concurrent read & write ops */
 148
 149 #define F_LINUX_SPECIFIC_BASE   1024
 150
 151 #ifndef HAVE_ARCH_STRUCT_FLOCK
 152 #ifndef __ARCH_FLOCK_PAD
 153 #define __ARCH_FLOCK_PAD
 154 #endif
 155
 156 struct flock {
 157         short   l_type;
 158         short   l_whence;
 159         __kernel_off_t  l_start;
 160         __kernel_off_t  l_len;
 161         __kernel_pid_t  l_pid;
 162         __ARCH_FLOCK_PAD
 163 };
 164 #endif
 165
 166 #ifndef CONFIG_64BIT
 167
 168 #ifndef HAVE_ARCH_STRUCT_FLOCK64
 169 #ifndef __ARCH_FLOCK64_PAD
 170 #define __ARCH_FLOCK64_PAD
 171 #endif
 172
 173 struct flock64 {
 174         short  l_type;
 175         short  l_whence;
 176         __kernel_loff_t l_start;
 177         __kernel_loff_t l_len;
 178         __kernel_pid_t  l_pid;
 179         __ARCH_FLOCK64_PAD
 180 };
 181 #endif
 182 #endif /* !CONFIG_64BIT */
 183
 184 #endif /* _ASM_GENERIC_FCNTL_H */