compilers/linux86-0.16.17/libc/include/linux/fcntl.h

   1 #ifndef __LINUX_FCNTL_H
   2 #define __LINUX_FCNTL_H
   3
   4 /*
   5  *      Definitions taken from the i386 Linux kernel.
   6  */
   7
   8 /* open/fcntl */
   9
  10 #define O_ACCMODE         0003
  11 #define O_RDONLY            00
  12 #define O_WRONLY            01
  13 #define O_RDWR              02
  14 #define O_CREAT           0100  /* not fcntl */
  15 #define O_EXCL            0200  /* not fcntl */
  16 #define O_NOCTTY          0400  /* not fcntl */
  17 #define O_TRUNC          01000  /* not fcntl */
  18 #define O_APPEND         02000
  19 #define O_NONBLOCK       04000
  20 #define O_NDELAY        O_NONBLOCK
  21 #if 0
  22 #define O_SYNC          010000  /* Not supported */
  23 #define FASYNC          020000  /* Not supported */
  24 #endif
  25
  26 #define F_DUPFD         0       /* dup */
  27 #define F_GETFD         1       /* get f_flags */
  28 #define F_SETFD         2       /* set f_flags */
  29 #define F_GETFL         3       /* more flags (cloexec) */
  30 #define F_SETFL         4
  31 #define F_GETLK         5
  32 #define F_SETLK         6
  33 #define F_SETLKW        7
  34
  35 #define F_SETOWN        8       /*  for sockets. */
  36 #define F_GETOWN        9       /*  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 #ifdef __KERNEL__
  58 #define F_POSIX         1
  59 #define F_FLOCK         2
  60 #endif /* __KERNEL__ */
  61
  62 struct flock {
  63         short l_type;
  64         short l_whence;
  65         off_t l_start;
  66         off_t l_len;
  67         pid_t l_pid;
  68 };
  69
  70 #endif