sysdeps/unix/sysv/aix/bits/fcntl.h

   1 /* O_*, F_*, FD_* bit values for Linux.
   2    Copyright (C) 1995-1999, 2000, 2004 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 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _FCNTL_H
  21 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
  22 #endif
  23
  24
  25 #include <sys/types.h>
  26
  27 /* open/fcntl.  */
  28 #define O_ACCMODE         0003
  29 #define O_RDONLY            00
  30 #define O_WRONLY            01
  31 #define O_RDWR              02
  32 #define O_NONBLOCK          04
  33 #define O_NDELAY    O_NONBLOCK
  34 #define O_APPEND           010
  35 #define O_SYNC             020
  36 #define O_FSYNC         O_SYNC
  37 #define O_CREAT           0400  /* not fcntl */
  38 #define O_TRUNC          01000  /* not fcntl */
  39 #define O_EXCL           02000  /* not fcntl */
  40 #define O_NOCTTY         04000  /* not fcntl */
  41 #define O_ASYNC        0400000
  42
  43 #ifdef __USE_LARGEFILE64
  44 # define O_LARGEFILE 0400000000
  45 #endif
  46
  47 /* For now Linux has synchronisity options for data and read operations.
  48    We define the symbols here but let them do the same as O_SYNC since
  49    this is a superset.  */
  50 #if defined __USE_POSIX199309 || defined __USE_UNIX98
  51 # define O_DSYNC     020000000  /* Synchronize data.  */
  52 # define O_RSYNC     010000000  /* Synchronize read operations.  */
  53 #endif
  54
  55 /* Values for the second argument to `fcntl'.  */
  56 #define F_DUPFD         0       /* Duplicate file descriptor.  */
  57 #define F_GETFD         1       /* Get file descriptor flags.  */
  58 #define F_SETFD         2       /* Set file descriptor flags.  */
  59 #define F_GETFL         3       /* Get file status flags.  */
  60 #define F_SETFL         4       /* Set file status flags.  */
  61 #ifndef __USE_FILE_OFFSET64
  62 # define F_GETLK        5       /* Get record locking info.  */
  63 # define F_SETLK        6       /* Set record locking info (non-blocking).  */
  64 # define F_SETLKW       7       /* Set record locking info (blocking).  */
  65 #else
  66 # define F_GETLK       11       /* Get record locking info.  */
  67 # define F_SETLK       12       /* Set record locking info (non-blocking).  */
  68 # define F_SETLKW      13       /* Set record locking info (blocking).  */
  69 #endif
  70
  71 #ifdef __USE_LARGEFILE64
  72 # define F_GETLK64      11      /* Get record locking info.  */
  73 # define F_SETLK64      12      /* Set record locking info (non-blocking).  */
  74 # define F_SETLKW64     13      /* Set record locking info (blocking).  */
  75 #endif
  76
  77 #if defined __USE_BSD || defined __USE_UNIX98
  78 # define F_SETOWN       8       /* Get owner of socket (receiver of SIGIO).  */
  79 # define F_GETOWN       9       /* Set owner of socket (receiver of SIGIO).  */
  80 #endif
  81
  82 /* For F_[GET|SET]FL.  */
  83 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
  84
  85 /* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
  86 #define F_RDLCK         1       /* Read lock.  */
  87 #define F_WRLCK         2       /* Write lock.  */
  88 #define F_UNLCK         3       /* Remove lock.  */
  89
  90 #ifdef __USE_BSD
  91 /* Operations for bsd flock(), also used by the kernel implementation */
  92 # define LOCK_SH        1       /* shared lock */
  93 # define LOCK_EX        2       /* exclusive lock */
  94 # define LOCK_NB        4       /* or'd with one of the above to prevent
  95                                    blocking */
  96 # define LOCK_UN        8       /* remove lock */
  97 #endif
  98
  99 struct flock
 100   {
 101     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 102     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 103 #ifndef __USE_FILE_OFFSET64
 104     __off_t l_start;    /* Offset where the lock begins.  */
 105     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
 106 #endif
 107     unsigned int l_sysid;
 108     __pid_t l_pid;      /* Process holding the lock.  */
 109     int l_vfs;
 110 #ifdef __USE_FILE_OFFSET64
 111     __off64_t l_start;  /* Offset where the lock begins.  */
 112     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 113 #endif
 114   };
 115
 116 #ifdef __USE_LARGEFILE64
 117 struct flock64
 118   {
 119     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
 120     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
 121     unsigned int l_sysid;
 122     __pid_t l_pid;      /* Process holding the lock.  */
 123     int l_vfs;
 124     __off64_t l_start;  /* Offset where the lock begins.  */
 125     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
 126   };
 127 #endif
 128
 129 /* Define some more compatibility macros to be backward compatible with
 130    BSD systems which did not managed to hide these kernel macros.  */
 131 #ifdef  __USE_BSD
 132 # define FAPPEND        O_APPEND
 133 # define FFSYNC         O_FSYNC
 134 # define FASYNC         O_ASYNC
 135 # define FNONBLOCK      O_NONBLOCK
 136 # define FNDELAY        O_NDELAY
 137 #endif /* Use BSD.  */