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

   1 /* O_*, F_*, FD_* bit values for Linux/SPARC.
   2    Copyright (C) 1995, 1996, 1997, 1998, 2000, 2003, 2004, 2006, 2007, 2009
   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 #include <bits/wordsize.h>
  27 #ifdef __USE_GNU
  28 # include <bits/uio.h>
  29 #endif
  30
  31 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
  32    located on an ext2 file system */
  33 #define O_RDONLY        0x0000
  34 #define O_WRONLY        0x0001
  35 #define O_RDWR          0x0002
  36 #define O_ACCMODE       0x0003
  37 #define O_APPEND        0x0008
  38 #define O_ASYNC         0x0040
  39 #define O_CREAT         0x0200  /* not fcntl */
  40 #define O_TRUNC         0x0400  /* not fcntl */
  41 #define O_EXCL          0x0800  /* not fcntl */
  42 #define O_SYNC          0x2000
  43 #define O_NONBLOCK      0x4000
  44 #define O_NDELAY        (0x0004 | O_NONBLOCK)
  45 #define O_NOCTTY        0x8000  /* not fcntl */
  46
  47 #ifdef __USE_GNU
  48 # define O_DIRECTORY    0x10000 /* must be a directory */
  49 # define O_NOFOLLOW     0x20000 /* don't follow links */
  50 # define O_DIRECT       0x100000 /* direct disk access hint */
  51 # define O_NOATIME      0x200000 /* Do not set atime.  */
  52 # define O_CLOEXEC      0x400000 /* Set close_on_exit.  */
  53 #endif
  54
  55 #ifdef __USE_LARGEFILE64
  56 # if __WORDSIZE == 64
  57 #  define O_LARGEFILE   0
  58 # else
  59 #  define O_LARGEFILE   0x40000
  60 # endif
  61 #endif
  62
  63 /* For now Linux has no synchronisity options for data and read
  64    operations.  We define the symbols here but let them do the same as
  65    O_SYNC since this is a superset.  */
  66 #if defined __USE_POSIX199309 || defined __USE_UNIX98
  67 # define O_DSYNC        O_SYNC  /* Synchronize data.  */
  68 # define O_RSYNC        O_SYNC  /* Synchronize read operations.  */
  69 #endif
  70
  71 /* For now Linux has synchronisity options for data and read operations.
  72    We define the symbols here but let them do the same as O_SYNC since
  73    this is a superset.  */
  74 #if defined __USE_POSIX199309 || defined __USE_UNIX98
  75 # define O_DSYNC        O_SYNC  /* Synchronize data.  */
  76 # define O_RSYNC        O_SYNC  /* Synchronize read operations.  */
  77 #endif
  78
  79 /* Values for the second argument to `fcntl'.  */
  80 #define F_DUPFD         0       /* Duplicate file descriptor.  */
  81 #define F_GETFD         1       /* Get file descriptor flags.  */
  82 #define F_SETFD         2       /* Set file descriptor flags.  */
  83 #define F_GETFL         3       /* Get file status flags.  */
  84 #define F_SETFL         4       /* Set file status flags.  */
  85 #if defined __USE_BSD || defined __USE_UNIX98
  86 # define F_GETOWN       5       /* Get owner (process receiving SIGIO).  */
  87 # define F_SETOWN       6       /* Set owner (process receiving SIGIO).  */
  88 #endif
  89 #ifndef __USE_FILE_OFFSET64
  90 # define F_GETLK        7       /* Get record locking info.  */
  91 # define F_SETLK        8       /* Set record locking info (non-blocking).  */
  92 # define F_SETLKW       9       /* Set record locking info (blocking).  */
  93 #else
  94 # define F_GETLK        F_GETLK64  /* Get record locking info.  */
  95 # define F_SETLK        F_SETLK64  /* Set record locking info (non-blocking).*/
  96 # define F_SETLKW       F_SETLKW64 /* Set record locking info (blocking).  */
  97 #endif
  98
  99 #ifdef __USE_GNU
 100 # define F_SETSIG       10      /* Set number of signal to be sent.  */
 101 # define F_GETSIG       11      /* Get number of signal to be sent.  */
 102 # define F_GETOWN_EX    12      /* Get owner (thread receiving SIGIO).  */
 103 # define F_SETOWN_EX    13      /* Set owner (thread receiving SIGIO).  */
 104 #endif
 105
 106 #ifdef __USE_GNU
 107 # define F_SETLEASE     1024    /* Set a lease.  */
 108 # define F_GETLEASE     1025    /* Enquire what lease is active.  */
 109 # define F_NOTIFY       1026    /* Request notfications on a directory.  */
 110 # define F_DUPFD_CLOEXEC 1030   /* Duplicate file descriptor with
 111                                    close-on-exit set.  */
 112 #endif
 113
 114 #if __WORDSIZE == 64
 115 # define F_GETLK64      7       /* Get record locking info.  */
 116 # define F_SETLK64      8       /* Set record locking info (non-blocking).  */
 117 # define F_SETLKW64     9       /* Set record locking info (blocking).  */
 118 #else
 119 # define F_GETLK64      12      /* Get record locking info.  */
 120 # define F_SETLK64      13      /* Set record locking info (non-blocking).  */
 121 # define F_SETLKW64     14      /* Set record locking info (blocking).  */
 122 #endif
 123
 124 /* for F_[GET|SET]FD */
 125 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
 126
 127 /* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
 128 #define F_RDLCK         1       /* Read lock.  */
 129 #define F_WRLCK         2       /* Write lock.  */
 130 #define F_UNLCK         3       /* Remove lock.  */
 131
 132 /* for old implementation of bsd flock () */
 133 #define F_EXLCK         4       /* or 3 */
 134 #define F_SHLCK         8       /* or 4 */
 135
 136 #ifdef __USE_BSD
 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 #endif
 144
 145 #ifdef __USE_GNU
 146 # define LOCK_MAND      32      /* This is a mandatory flock:   */
 147 # define LOCK_READ      64      /* ... which allows concurrent read operations.  */
 148 # define LOCK_WRITE     128     /* ... which allows concurrent write operations.  */
 149 # define LOCK_RW        192     /* ... Which allows concurrent read & write operations.  */
 150 #endif
 151
 152 #ifdef __USE_GNU
 153 /* Types of directory notifications that may be requested with F_NOTIFY.  */
 154 # define DN_ACCESS      0x00000001      /* File accessed.  */
 155 # define DN_MODIFY      0x00000002      /* File modified.  */
 156 # define DN_CREATE      0x00000004      /* File created.  */
 157 # define DN_DELETE      0x00000008      /* File removed.  */
 158 # define DN_RENAME      0x00000010      /* File renamed.  */
 159 # define DN_ATTRIB      0x00000020      /* File changed attibutes.  */
 160 # define DN_MULTISHOT   0x80000000      /* Don't remove notifier.  */
 161 #endif
 162
 163 struct flock
 164   {
 165     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 166     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 167 #ifndef __USE_FILE_OFFSET64
 168     __off_t l_start;    /* Offset where the lock begins.  */
 169     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
 170 #else
 171     __off64_t l_start;  /* Offset where the lock begins.  */
 172     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 173 #endif
 174     __pid_t l_pid;      /* Process holding the lock.  */
 175     short int __unused;
 176   };
 177
 178 #ifdef __USE_LARGEFILE64
 179 struct flock64
 180   {
 181     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 182     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 183     __off64_t l_start;  /* Offset where the lock begins.  */
 184     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 185     __pid_t l_pid;      /* Process holding the lock.  */
 186     short int __unused;
 187   };
 188 #endif
 189
 190 #ifdef __USE_GNU
 191 /* Owner types.  */
 192 enum __pid_type
 193   {
 194     F_OWNER_TID = 0,    /* Kernel thread.  */
 195     F_OWNER_PID,        /* Process.  */
 196     F_OWNER_GID         /* Process group.  */
 197   };
 198
 199 /* Structure to use with F_GETOWN_EX and F_SETOWN_EX.  */
 200 struct f_owner_ex
 201   {
 202     enum __pid_type type;       /* Owner type of ID.  */
 203     __pid_t pid;                /* ID of owner.  */
 204   };
 205 #endif
 206
 207 /* Define some more compatibility macros to be backward compatible with
 208    BSD systems which did not managed to hide these kernel macros.  */
 209 #ifdef  __USE_BSD
 210 # define FAPPEND        O_APPEND
 211 # define FFSYNC         O_FSYNC
 212 # define FASYNC         O_ASYNC
 213 # define FNONBLOCK      O_NONBLOCK
 214 # define FNDELAY        O_NDELAY
 215 #endif /* Use BSD.  */
 216
 217 /* Advise to `posix_fadvise'.  */
 218 #ifdef __USE_XOPEN2K
 219 # define POSIX_FADV_NORMAL      0 /* No further special treatment.  */
 220 # define POSIX_FADV_RANDOM      1 /* Expect random page references.  */
 221 # define POSIX_FADV_SEQUENTIAL  2 /* Expect sequential page references.  */
 222 # define POSIX_FADV_WILLNEED    3 /* Will need these pages.  */
 223 # define POSIX_FADV_DONTNEED    4 /* Don't need these pages.  */
 224 # define POSIX_FADV_NOREUSE     5 /* Data will be accessed once.  */
 225 #endif
 226
 227
 228 #ifdef __USE_GNU
 229 /* Flags for SYNC_FILE_RANGE.  */
 230 # define SYNC_FILE_RANGE_WAIT_BEFORE    1 /* Wait upon writeout of all pages
 231                                              in the range before performing the
 232                                              write.  */
 233 # define SYNC_FILE_RANGE_WRITE          2 /* Initiate writeout of all those
 234                                              dirty pages in the range which are
 235                                              not presently under writeback.  */
 236 # define SYNC_FILE_RANGE_WAIT_AFTER     4 /* Wait upon writeout of all pages in
 237                                              the range after performing the
 238                                              write.  */
 239
 240 /* Flags for SPLICE and VMSPLICE.  */
 241 # define SPLICE_F_MOVE          1       /* Move pages instead of copying.  */
 242 # define SPLICE_F_NONBLOCK      2       /* Don't block on the pipe splicing
 243                                            (but we may still block on the fd
 244                                            we splice from/to).  */
 245 # define SPLICE_F_MORE          4       /* Expect more data.  */
 246 # define SPLICE_F_GIFT          8       /* Pages passed in are a gift.  */
 247 #endif
 248
 249 __BEGIN_DECLS
 250
 251 #ifdef __USE_GNU
 252
 253 /* Provide kernel hint to read ahead.  */
 254 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
 255     __THROW;
 256
 257
 258 /* Selective file content synch'ing.  */
 259 extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
 260                             unsigned int __flags);
 261
 262
 263 /* Splice address range into a pipe.  */
 264 extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
 265                          size_t __count, unsigned int __flags);
 266
 267 /* Splice two files together.  */
 268 extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
 269                        __off64_t *__offout, size_t __len,
 270                        unsigned int __flags);
 271
 272 /* In-kernel implementation of tee for pipe buffers.  */
 273 extern ssize_t tee (int __fdin, int __fdout, size_t __len,
 274                     unsigned int __flags);
 275
 276 /* Reserve storage for the data of the file associated with FD.  */
 277 # ifndef __USE_FILE_OFFSET64
 278 extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len);
 279 # else
 280 #  ifdef __REDIRECT
 281 extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset,
 282                                    __off64_t __len),
 283                        fallocate64);
 284 #  else
 285 #   define fallocate fallocate64
 286 #  endif
 287 # endif
 288 # ifdef __USE_LARGEFILE64
 289 extern int fallocate64 (int __fd, int __mode, __off64_t __offset,
 290                         __off64_t __len);
 291 # endif
 292
 293 #endif
 294
 295 __END_DECLS