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

   1 /* O_*, F_*, FD_* bit values for Linux/SPARC.
   2    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _FCNTLBITS_H
  21 #define _FCNTLBITS_H    1
  22
  23 #include <sys/types.h>
  24
  25 /* In GNU, read and write are bits (unlike BSD). */
  26 #ifdef __USE_GNU
  27 # define O_READ         O_RDONLY /* Open for reading. */
  28 # define O_WRITE        O_WRONLY /* Open for writing. */
  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 /* XXX missing */
  48 #define O_LARGEFILE     0
  49
  50 /* Values for the second argument to `fcntl'.  */
  51 #define F_DUPFD         0       /* Duplicate file descriptor.  */
  52 #define F_GETFD         1       /* Get file descriptor flags.  */
  53 #define F_SETFD         2       /* Set file descriptor flags.  */
  54 #define F_GETFL         3       /* Get file status flags.  */
  55 #define F_SETFL         4       /* Set file status flags.  */
  56 #ifdef __USE_BSD
  57 # define F_GETOWN       5       /* Get owner of socket (receiver of SIGIO).  */
  58 # define F_SETOWN       6       /* Set owner of socket (receiver of SIGIO).  */
  59 #endif
  60 #define F_GETLK         7       /* Get record locking info.  */
  61 #define F_SETLK         8       /* Set record locking info (non-blocking).  */
  62 #define F_SETLKW        9       /* Set record locking info (blocking).  */
  63
  64 /* XXX missing */
  65 #define F_GETLK64       7       /* Get record locking info.  */
  66 #define F_SETLK64       8       /* Set record locking info (non-blocking).  */
  67 #define F_SETLKW64      9       /* Set record locking info (blocking).  */
  68
  69 /* for F_[GET|SET]FL */
  70 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
  71
  72 /* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
  73 #define F_RDLCK         1       /* Read lock.  */
  74 #define F_WRLCK         2       /* Write lock.  */
  75 #define F_UNLCK         3       /* Remove lock.  */
  76
  77 /* for old implementation of bsd flock () */
  78 #define F_EXLCK         4       /* or 3 */
  79 #define F_SHLCK         8       /* or 4 */
  80
  81 /* operations for bsd flock(), also used by the kernel implementation */
  82 #define LOCK_SH         1       /* shared lock */
  83 #define LOCK_EX         2       /* exclusive lock */
  84 #define LOCK_NB         4       /* or'd with one of the above to prevent
  85                                    blocking */
  86 #define LOCK_UN         8       /* remove lock */
  87
  88 struct flock
  89   {
  90     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  91     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  92 #ifndef __USE_FILE_OFFSET64
  93     __off_t l_start;    /* Offset where the lock begins.  */
  94     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
  95 #else
  96     __off64_t l_start;  /* Offset where the lock begins.  */
  97     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  98 #endif
  99     __pid_t l_pid;      /* Process holding the lock.  */
 100     short int __unused;
 101   };
 102
 103 #ifdef __USE_LARGEFILE64
 104 struct flock64
 105   {
 106     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 107     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 108     __off64_t l_start;  /* Offset where the lock begins.  */
 109     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 110     __pid_t l_pid;      /* Process holding the lock.  */
 111     short int __unused;
 112   };
 113 #endif
 114
 115 /* Define some more compatibility macros to be backward compatible with
 116    BSD systems which did not managed to hide these kernel macros.  */
 117 #ifdef  __USE_BSD
 118 # define FAPPEND        O_APPEND
 119 # define FFSYNC         O_FSYNC
 120 # define FASYNC         O_ASYNC
 121 # define FNONBLOCK      O_NONBLOCK
 122 # define FNDELAY        O_NDELAY
 123 #endif /* Use BSD.  */
 124
 125 #endif