libc/sysdeps/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
   3    Free Software Foundation, Inc.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _FCNTL_H
  20 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
  21 #endif
  22
  23 #include <sys/types.h>
  24 #ifdef __USE_GNU
  25 # include <bits/uio.h>
  26 #endif
  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        0x0000
  31 #define O_WRONLY        0x0001
  32 #define O_RDWR          0x0002
  33 #define O_ACCMODE       0x0003
  34 #define O_APPEND        0x0008
  35 #define O_ASYNC         0x0040
  36 #define O_CREAT         0x0200  /* not fcntl */
  37 #define O_TRUNC         0x0400  /* not fcntl */
  38 #define O_EXCL          0x0800  /* not fcntl */
  39 #define O_SYNC          0x2000
  40 #define O_NONBLOCK      0x4000
  41 #define O_NDELAY        (0x0004 | O_NONBLOCK)
  42 #define O_NOCTTY        0x8000  /* not fcntl */
  43
  44 #ifdef __USE_XOPEN2K8
  45 # define O_DIRECTORY    0x10000 /* must be a directory */
  46 # define O_NOFOLLOW     0x20000 /* don't follow links */
  47 # define O_CLOEXEC     0x400000 /* Set close_on_exit.  */
  48 #endif
  49
  50 #ifdef __USE_GNU
  51 # define O_DIRECT      0x100000 /* direct disk access hint */
  52 # define O_NOATIME     0x200000 /* Do not set atime.  */
  53 # define O_PATH       0x1000000 /* Resolve pathname but do not open file.  */
  54 #endif
  55
  56 #ifdef __USE_LARGEFILE64
  57 # define O_LARGEFILE    0x40000
  58 #endif
  59
  60 /* For now Linux has no synchronisity options for data and read
  61    operations.  We define the symbols here but let them do the same as
  62    O_SYNC since this is a superset.  */
  63 #if defined __USE_POSIX199309 || defined __USE_UNIX98
  64 # define O_DSYNC        O_SYNC  /* Synchronize data.  */
  65 # define O_RSYNC        O_SYNC  /* Synchronize read operations.  */
  66 #endif
  67
  68 /* For now Linux has synchronisity options for data and read operations.
  69    We define the symbols here but let them do the same as O_SYNC since
  70    this is a superset.  */
  71 #if defined __USE_POSIX199309 || defined __USE_UNIX98
  72 # define O_DSYNC        O_SYNC  /* Synchronize data.  */
  73 # define O_RSYNC        O_SYNC  /* Synchronize read operations.  */
  74 #endif
  75
  76 /* Values for the second argument to `fcntl'.  */
  77 #define F_DUPFD         0       /* Duplicate file descriptor.  */
  78 #define F_GETFD         1       /* Get file descriptor flags.  */
  79 #define F_SETFD         2       /* Set file descriptor flags.  */
  80 #define F_GETFL         3       /* Get file status flags.  */
  81 #define F_SETFL         4       /* Set file status flags.  */
  82 #if defined __USE_BSD || defined __USE_UNIX98
  83 # define F_GETOWN       5       /* Get owner of socket (receiver of SIGIO).  */
  84 # define F_SETOWN       6       /* Set owner of socket (receiver of SIGIO).  */
  85 #endif
  86 #ifndef __USE_FILE_OFFSET64
  87 # define F_GETLK        7       /* Get record locking info.  */
  88 # define F_SETLK        8       /* Set record locking info (non-blocking).  */
  89 # define F_SETLKW       9       /* Set record locking info (blocking).  */
  90 #else
  91 # define F_GETLK        F_GETLK64  /* Get record locking info.  */
  92 # define F_SETLK        F_SETLK64  /* Set record locking info (non-blocking).*/
  93 # define F_SETLKW       F_SETLKW64 /* Set record locking info (blocking).  */
  94 #endif
  95
  96 #ifdef __USE_GNU
  97 # define F_SETSIG       10      /* Set number of signal to be sent.  */
  98 # define F_GETSIG       11      /* Get number of signal to be sent.  */
  99 #endif
 100
 101 #ifdef __USE_GNU
 102 # define F_SETLEASE     1024    /* Set a lease.  */
 103 # define F_GETLEASE     1025    /* Enquire what lease is active.  */
 104 # define F_NOTIFY       1026    /* Request notfications on a directory.  */
 105 # define F_DUPFD_CLOEXEC 1030   /* Duplicate file descriptor with
 106                                    close-on-exit set on new fd.  */
 107 # define F_SETPIPE_SZ   1031    /* Set pipe page size array.  */
 108 # define F_GETPIPE_SZ   1032    /* Get pipe page size array.  */
 109 #endif
 110
 111 #define F_GETLK64       12      /* Get record locking info.  */
 112 #define F_SETLK64       13      /* Set record locking info (non-blocking).  */
 113 #define F_SETLKW64      14      /* Set record locking info (blocking).  */
 114
 115 /* for F_[GET|SET]FD */
 116 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
 117
 118 /* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
 119 #define F_RDLCK         1       /* Read lock.  */
 120 #define F_WRLCK         2       /* Write lock.  */
 121 #define F_UNLCK         3       /* Remove lock.  */
 122
 123 /* for old implementation of bsd flock () */
 124 #define F_EXLCK         4       /* or 3 */
 125 #define F_SHLCK         8       /* or 4 */
 126
 127 #ifdef __USE_BSD
 128 /* Operations for bsd flock(), also used by the kernel implementation */
 129 # define LOCK_SH        1       /* shared lock */
 130 # define LOCK_EX        2       /* exclusive lock */
 131 # define LOCK_NB        4       /* or'd with one of the above to prevent
 132                                    blocking */
 133 # define LOCK_UN        8       /* remove lock */
 134 #endif
 135
 136 #ifdef __USE_GNU
 137 # define LOCK_MAND      32      /* This is a mandatory flock:   */
 138 # define LOCK_READ      64      /* ... which allows concurrent read operations.  */
 139 # define LOCK_WRITE     128     /* ... which allows concurrent write operations.  */
 140 # define LOCK_RW        192     /* ... Which allows concurrent read & write operations.  */
 141 #endif
 142
 143 #ifdef __USE_GNU
 144 /* Types of directory notifications that may be requested with F_NOTIFY.  */
 145 # define DN_ACCESS      0x00000001      /* File accessed.  */
 146 # define DN_MODIFY      0x00000002      /* File modified.  */
 147 # define DN_CREATE      0x00000004      /* File created.  */
 148 # define DN_DELETE      0x00000008      /* File removed.  */
 149 # define DN_RENAME      0x00000010      /* File renamed.  */
 150 # define DN_ATTRIB      0x00000020      /* File changed attibutes.  */
 151 # define DN_MULTISHOT   0x80000000      /* Don't remove notifier.  */
 152 #endif
 153
 154 struct flock
 155   {
 156     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 157     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 158 #ifndef __USE_FILE_OFFSET64
 159     __off_t l_start;    /* Offset where the lock begins.  */
 160     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
 161 #else
 162     __off64_t l_start;  /* Offset where the lock begins.  */
 163     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 164 #endif
 165     __pid_t l_pid;      /* Process holding the lock.  */
 166     short int __uclibc_unused;
 167   };
 168
 169 #ifdef __USE_LARGEFILE64
 170 struct flock64
 171   {
 172     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 173     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 174     __off64_t l_start;  /* Offset where the lock begins.  */
 175     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 176     __pid_t l_pid;      /* Process holding the lock.  */
 177     short int __uclibc_unused;
 178   };
 179 #endif
 180
 181 /* Define some more compatibility macros to be backward compatible with
 182    BSD systems which did not managed to hide these kernel macros.  */
 183 #ifdef  __USE_BSD
 184 # define FAPPEND        O_APPEND
 185 # define FFSYNC         O_FSYNC
 186 # define FASYNC         O_ASYNC
 187 # define FNONBLOCK      O_NONBLOCK
 188 # define FNDELAY        O_NDELAY
 189 #endif /* Use BSD.  */
 190
 191 /* Advise to `posix_fadvise'.  */
 192 #ifdef __USE_XOPEN2K
 193 # define POSIX_FADV_NORMAL      0 /* No further special treatment.  */
 194 # define POSIX_FADV_RANDOM      1 /* Expect random page references.  */
 195 # define POSIX_FADV_SEQUENTIAL  2 /* Expect sequential page references.  */
 196 # define POSIX_FADV_WILLNEED    3 /* Will need these pages.  */
 197 # define POSIX_FADV_DONTNEED    4 /* Don't need these pages.  */
 198 # define POSIX_FADV_NOREUSE     5 /* Data will be accessed once.  */
 199 #endif
 200
 201
 202 #if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
 203 /* Flags for SYNC_FILE_RANGE.  */
 204 # define SYNC_FILE_RANGE_WAIT_BEFORE    1 /* Wait upon writeout of all pages
 205                                              in the range before performing the
 206                                              write.  */
 207 # define SYNC_FILE_RANGE_WRITE          2 /* Initiate writeout of all those
 208                                              dirty pages in the range which are
 209                                              not presently under writeback.  */
 210 # define SYNC_FILE_RANGE_WAIT_AFTER     4 /* Wait upon writeout of all pages in
 211                                              the range after performing the
 212                                              write.  */
 213
 214 /* Flags for SPLICE and VMSPLICE.  */
 215 # define SPLICE_F_MOVE          1       /* Move pages instead of copying.  */
 216 # define SPLICE_F_NONBLOCK      2       /* Don't block on the pipe splicing
 217                                            (but we may still block on the fd
 218                                            we splice from/to).  */
 219 # define SPLICE_F_MORE          4       /* Expect more data.  */
 220 # define SPLICE_F_GIFT          8       /* Pages passed in are a gift.  */
 221 #endif
 222
 223 __BEGIN_DECLS
 224
 225 #if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
 226
 227 /* Provide kernel hint to read ahead.  */
 228 extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
 229     __THROW;
 230
 231
 232 /* Selective file content synch'ing.  */
 233 extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
 234                             unsigned int __flags);
 235
 236 /* Splice address range into a pipe.  */
 237 extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
 238                          size_t __count, unsigned int __flags);
 239
 240 /* Splice two files together.  */
 241 extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
 242                        __off64_t *__offout, size_t __len,
 243                        unsigned int __flags);
 244
 245 /* In-kernel implementation of tee for pipe buffers.  */
 246 extern ssize_t tee (int __fdin, int __fdout, size_t __len,
 247                     unsigned int __flags);
 248
 249 #endif
 250 __END_DECLS
 251