include/asm-i386/fcntl.h

   1 #ifndef _I386_FCNTL_H
   2 #define _I386_FCNTL_H
   3
   4 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
   5    located on an ext2 file system */
   6 #define O_ACCMODE          0003
   7 #define O_RDONLY             00
   8 #define O_WRONLY             01
   9 #define O_RDWR               02
  10 #define O_CREAT            0100 /* not fcntl */
  11 #define O_EXCL             0200 /* not fcntl */
  12 #define O_NOCTTY           0400 /* not fcntl */
  13 #define O_TRUNC           01000 /* not fcntl */
  14 #define O_APPEND          02000
  15 #define O_NONBLOCK        04000
  16 #define O_NDELAY        O_NONBLOCK
  17 #define O_SYNC           010000
  18 #define FASYNC           020000 /* fcntl, for BSD compatibility */
  19 #define O_DIRECT         040000 /* direct disk access hint - currently ignored */
  20 #define O_LARGEFILE     0100000
  21 #define O_DIRECTORY     0200000 /* must be a directory */
  22 #define O_NOFOLLOW      0400000 /* don't follow links */
  23
  24 #define F_DUPFD         0       /* dup */
  25 #define F_GETFD         1       /* get f_flags */
  26 #define F_SETFD         2       /* set f_flags */
  27 #define F_GETFL         3       /* more flags (cloexec) */
  28 #define F_SETFL         4
  29 #define F_GETLK         5
  30 #define F_SETLK         6
  31 #define F_SETLKW        7
  32
  33 #define F_SETOWN        8       /*  for sockets. */
  34 #define F_GETOWN        9       /*  for sockets. */
  35 #define F_SETSIG        10      /*  for sockets. */
  36 #define F_GETSIG        11      /*  for sockets. */
  37
  38 /* for F_[GET|SET]FL */
  39 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
  40
  41 /* for posix fcntl() and lockf() */
  42 #define F_RDLCK         0
  43 #define F_WRLCK         1
  44 #define F_UNLCK         2
  45
  46 /* for old implementation of bsd flock () */
  47 #define F_EXLCK         4       /* or 3 */
  48 #define F_SHLCK         8       /* or 4 */
  49
  50 /* operations for bsd flock(), also used by the kernel implementation */
  51 #define LOCK_SH         1       /* shared lock */
  52 #define LOCK_EX         2       /* exclusive lock */
  53 #define LOCK_NB         4       /* or'd with one of the above to prevent
  54                                    blocking */
  55 #define LOCK_UN         8       /* remove lock */
  56
  57 struct flock {
  58         short l_type;
  59         short l_whence;
  60         off_t l_start;
  61         off_t l_len;
  62         pid_t l_pid;
  63 };
  64
  65 #endif