sysdeps/unix/sysv/linux/hppa/bits/fcntl.h

   1 /* O_*, F_*, FD_* bit values for Linux/HPPA.
   2    Copyright (C) 1995,1996,1997,1998,1999,2000,2002,2004
   3         Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _FCNTL_H
  22 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
  23 #endif
  24
  25 #include <sys/types.h>
  26
  27
  28 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
  29    located on an ext2 file system */
  30 #define O_RDONLY        00000000
  31 #define O_WRONLY        00000001
  32 #define O_RDWR          00000002
  33 #define O_ACCMODE       00000003
  34 #define O_APPEND        00000010
  35 #define O_BLKSEEK       00000100 /* HPUX only */
  36 #define O_CREAT         00000400 /* not fcntl */
  37 #define O_TRUNC         00001000 /* not fcntl */
  38 #define O_EXCL          00002000 /* not fcntl */
  39 #define O_ASYNC         00020000
  40 #define O_SYNC          00100000
  41 #define O_NONBLOCK      00200004 /* HPUX has separate NDELAY & NONBLOCK */
  42 #define O_NDELAY        O_NONBLOCK
  43 #define O_NOCTTY        00400000 /* not fcntl */
  44
  45
  46 #ifdef __USE_GNU
  47 # define O_DIRECT       00040000 /* direct disk access hint - currently ignored */
  48 # define O_DIRECTORY    00010000 /* must be a directory */
  49 # define O_NOFOLLOW     00000200 /* don't follow links */
  50 # define O_NOATIME      04000000 /* Do not set atime.  */
  51 #endif
  52
  53 #ifdef __USE_LARGEFILE64
  54 # define O_LARGEFILE    00004000
  55 #endif
  56
  57 #if defined __USE_POSIX199309 || defined __USE_UNIX98
  58 # define O_DSYNC                01000000 /* HPUX only */
  59 # define O_RSYNC                02000000 /* HPUX only */
  60 #endif
  61
  62 /* Values for the second argument to `fcntl'.  */
  63 #define F_DUPFD         0       /* Duplicate file descriptor.  */
  64 #define F_GETFD         1       /* Get file descriptor flags.  */
  65 #define F_SETFD         2       /* Set file descriptor flags.  */
  66 #define F_GETFL         3       /* Get file status flags.  */
  67 #define F_SETFL         4       /* Set file status flags.  */
  68 #ifndef __USE_FILE_OFFSET64
  69 # define F_GETLK        5       /* Get record locking info.  */
  70 # define F_SETLK        6       /* Set record locking info (non-blocking).  */
  71 # define F_SETLKW       7       /* Set record locking info (blocking).  */
  72 #else
  73 # define F_GETLK        F_GETLK64 /* Get record locking info.  */
  74 # define F_SETLK        F_SETLK64 /* Set record locking info (non-blocking). */
  75 # define F_SETLKW       F_SETLKW64 /* Set record locking info (blocking).  */
  76 #endif
  77
  78 #define F_GETLK64       8       /* Get record locking info.  */
  79 #define F_SETLK64       9       /* Set record locking info (non-blocking).  */
  80 #define F_SETLKW64      10      /* Set record locking info (blocking).  */
  81
  82 #if defined __USE_BSD || defined __USE_UNIX98
  83 # define F_GETOWN       11      /* Get owner of socket (receiver of SIGIO).  */
  84 # define F_SETOWN       12      /* Set owner of socket (receiver of SIGIO).  */
  85 #endif
  86
  87 #ifdef __USE_GNU
  88 # define F_SETSIG       13      /* Set number of signal to be sent.  */
  89 # define F_GETSIG       14      /* Get number of signal to be sent.  */
  90 #endif
  91
  92 #ifdef __USE_GNU
  93 # define F_SETLEASE     1024    /* Set a lease.  */
  94 # define F_GETLEASE     1025    /* Enquire what lease is active.  */
  95 # define F_NOTIFY       1026    /* Request notfications on a directory.  */
  96 #endif
  97
  98 /* for F_[GET|SET]FL */
  99 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
 100
 101 /* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
 102 #define F_RDLCK         1       /* Read lock.  */
 103 #define F_WRLCK         2       /* Write lock.  */
 104 #define F_UNLCK         3       /* Remove lock.  */
 105
 106 /* for old implementation of bsd flock () */
 107 #define F_EXLCK         4       /* or 3 */
 108 #define F_SHLCK         8       /* or 4 */
 109
 110 #ifdef __USE_BSD
 111 /* operations for bsd flock(), also used by the kernel implementation */
 112 # define LOCK_SH        1       /* shared lock */
 113 # define LOCK_EX        2       /* exclusive lock */
 114 # define LOCK_NB        4       /* or'd with one of the above to prevent
 115                                    blocking */
 116 # define LOCK_UN        8       /* remove lock */
 117 #endif
 118
 119 #ifdef __USE_GNU
 120 /* Types of directory notifications that may be requested with F_NOTIFY.  */
 121 # define DN_ACCESS      0x00000001      /* File accessed.  */
 122 # define DN_MODIFY      0x00000002      /* File modified.  */
 123 # define DN_CREATE      0x00000004      /* File created.  */
 124 # define DN_DELETE      0x00000008      /* File removed.  */
 125 # define DN_RENAME      0x00000010      /* File renamed.  */
 126 # define DN_ATTRIB      0x00000020      /* File changed attibutes.  */
 127 # define DN_MULTISHOT   0x80000000      /* Don't remove notifier.  */
 128 #endif
 129
 130 struct flock
 131   {
 132     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 133     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 134 #ifndef __USE_FILE_OFFSET64
 135     __off_t l_start;    /* Offset where the lock begins.  */
 136     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
 137 #else
 138     __off64_t l_start;  /* Offset where the lock begins.  */
 139     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 140 #endif
 141     __pid_t l_pid;      /* Process holding the lock.  */
 142   };
 143
 144 #ifdef __USE_LARGEFILE64
 145 struct flock64
 146   {
 147     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 148     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 149     __off64_t l_start;  /* Offset where the lock begins.  */
 150     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 151     __pid_t l_pid;      /* Process holding the lock.  */
 152   };
 153 #endif
 154
 155 /* Define some more compatibility macros to be backward compatible with
 156    BSD systems which did not managed to hide these kernel macros.  */
 157 #ifdef  __USE_BSD
 158 # define FAPPEND        O_APPEND
 159 # define FFSYNC         O_FSYNC
 160 # define FASYNC         O_ASYNC
 161 # define FNONBLOCK      O_NONBLOCK
 162 # define FNDELAY        O_NDELAY
 163 #endif /* Use BSD.  */
 164
 165 /* Advise to `posix_fadvise'.  */
 166 #ifdef __USE_XOPEN2K
 167 # define POSIX_FADV_NORMAL      0 /* No further special treatment.  */
 168 # define POSIX_FADV_RANDOM      1 /* Expect random page references.  */
 169 # define POSIX_FADV_SEQUENTIAL  2 /* Expect sequential page references.  */
 170 # define POSIX_FADV_WILLNEED    3 /* Will need these pages.  */
 171 # define POSIX_FADV_DONTNEED    4 /* Don't need these pages.  */
 172 # define POSIX_FADV_NOREUSE     5 /* Data will be accessed once.  */
 173 #endif
 174
 175 __BEGIN_DECLS
 176
 177 /* Provide kernel hint to read ahead.  */
 178 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
 179     __THROW;
 180
 181 __END_DECLS