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Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/bits/fcntl-linux.h')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/bits/fcntl-linux.h | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/REORG.TODO/sysdeps/unix/sysv/linux/bits/fcntl-linux.h new file mode 100644 index 0000000000..59d663196a --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/bits/fcntl-linux.h @@ -0,0 +1,411 @@ +/* O_*, F_*, FD_* bit values for Linux. + Copyright (C) 2001-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _FCNTL_H +# error "Never use <bits/fcntl-linux.h> directly; include <fcntl.h> instead." +#endif + +/* This file contains shared definitions between Linux architectures + and is included by <bits/fcntl.h> to declare them. The various + #ifndef cases allow the architecture specific file to define those + values with different values. + + A minimal <bits/fcntl.h> contains just: + + struct flock {...} + #ifdef __USE_LARGEFILE64 + struct flock64 {...} + #endif + #include <bits/fcntl-linux.h> +*/ + +#ifdef __USE_GNU +# include <bits/uio.h> +#endif + +/* open/fcntl. */ +#define O_ACCMODE 0003 +#define O_RDONLY 00 +#define O_WRONLY 01 +#define O_RDWR 02 +#ifndef O_CREAT +# define O_CREAT 0100 /* Not fcntl. */ +#endif +#ifndef O_EXCL +# define O_EXCL 0200 /* Not fcntl. */ +#endif +#ifndef O_NOCTTY +# define O_NOCTTY 0400 /* Not fcntl. */ +#endif +#ifndef O_TRUNC +# define O_TRUNC 01000 /* Not fcntl. */ +#endif +#ifndef O_APPEND +# define O_APPEND 02000 +#endif +#ifndef O_NONBLOCK +# define O_NONBLOCK 04000 +#endif +#ifndef O_NDELAY +# define O_NDELAY O_NONBLOCK +#endif +#ifndef O_SYNC +# define O_SYNC 04010000 +#endif +#define O_FSYNC O_SYNC +#ifndef O_ASYNC +# define O_ASYNC 020000 +#endif +#ifndef __O_LARGEFILE +# define __O_LARGEFILE 0100000 +#endif + +#ifndef __O_DIRECTORY +# define __O_DIRECTORY 0200000 +#endif +#ifndef __O_NOFOLLOW +# define __O_NOFOLLOW 0400000 +#endif +#ifndef __O_CLOEXEC +# define __O_CLOEXEC 02000000 +#endif +#ifndef __O_DIRECT +# define __O_DIRECT 040000 +#endif +#ifndef __O_NOATIME +# define __O_NOATIME 01000000 +#endif +#ifndef __O_PATH +# define __O_PATH 010000000 +#endif +#ifndef __O_DSYNC +# define __O_DSYNC 010000 +#endif +#ifndef __O_TMPFILE +# define __O_TMPFILE (020000000 | __O_DIRECTORY) +#endif + +#ifndef F_GETLK +# ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 /* Get record locking info. */ +# define F_SETLK 6 /* Set record locking info (non-blocking). */ +# define F_SETLKW 7 /* Set record locking info (blocking). */ +# else +# define F_GETLK F_GETLK64 /* Get record locking info. */ +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ +# endif +#endif +#ifndef F_GETLK64 +# define F_GETLK64 12 /* Get record locking info. */ +# define F_SETLK64 13 /* Set record locking info (non-blocking). */ +# define F_SETLKW64 14 /* Set record locking info (blocking). */ +#endif + +/* open file description locks. + + Usually record locks held by a process are released on *any* close and are + not inherited across a fork. + + These cmd values will set locks that conflict with process-associated record + locks, but are "owned" by the opened file description, not the process. + This means that they are inherited across fork or clone with CLONE_FILES + like BSD (flock) locks, and they are only released automatically when the + last reference to the the file description against which they were acquired + is put. */ +#ifdef __USE_GNU +# define F_OFD_GETLK 36 +# define F_OFD_SETLK 37 +# define F_OFD_SETLKW 38 +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE __O_LARGEFILE +#endif + +#ifdef __USE_XOPEN2K8 +# define O_DIRECTORY __O_DIRECTORY /* Must be a directory. */ +# define O_NOFOLLOW __O_NOFOLLOW /* Do not follow links. */ +# define O_CLOEXEC __O_CLOEXEC /* Set close_on_exec. */ +#endif + +#ifdef __USE_GNU +# define O_DIRECT __O_DIRECT /* Direct disk access. */ +# define O_NOATIME __O_NOATIME /* Do not set atime. */ +# define O_PATH __O_PATH /* Resolve pathname but do not open file. */ +# define O_TMPFILE __O_TMPFILE /* Atomically create nameless file. */ +#endif + +/* For now, Linux has no separate synchronicitiy options for read + operations. We define O_RSYNC therefore as the same as O_SYNC + since this is a superset. */ +#if defined __USE_POSIX199309 || defined __USE_UNIX98 +# define O_DSYNC __O_DSYNC /* Synchronize data. */ +# if defined __O_RSYNC +# define O_RSYNC __O_RSYNC /* Synchronize read operations. */ +# else +# define O_RSYNC O_SYNC /* Synchronize read operations. */ +# endif +#endif + +/* Values for the second argument to `fcntl'. */ +#define F_DUPFD 0 /* Duplicate file descriptor. */ +#define F_GETFD 1 /* Get file descriptor flags. */ +#define F_SETFD 2 /* Set file descriptor flags. */ +#define F_GETFL 3 /* Get file status flags. */ +#define F_SETFL 4 /* Set file status flags. */ + +#ifndef __F_SETOWN +# define __F_SETOWN 8 +# define __F_GETOWN 9 +#endif + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K8 +# define F_SETOWN __F_SETOWN /* Get owner (process receiving SIGIO). */ +# define F_GETOWN __F_GETOWN /* Set owner (process receiving SIGIO). */ +#endif + +#ifndef __F_SETSIG +# define __F_SETSIG 10 /* Set number of signal to be sent. */ +# define __F_GETSIG 11 /* Get number of signal to be sent. */ +#endif +#ifndef __F_SETOWN_EX +# define __F_SETOWN_EX 15 /* Get owner (thread receiving SIGIO). */ +# define __F_GETOWN_EX 16 /* Set owner (thread receiving SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG __F_SETSIG /* Set number of signal to be sent. */ +# define F_GETSIG __F_GETSIG /* Get number of signal to be sent. */ +# define F_SETOWN_EX __F_SETOWN_EX /* Get owner (thread receiving SIGIO). */ +# define F_GETOWN_EX __F_GETOWN_EX /* Set owner (thread receiving SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETLEASE 1024 /* Set a lease. */ +# define F_GETLEASE 1025 /* Enquire what lease is active. */ +# define F_NOTIFY 1026 /* Request notifications on a directory. */ +# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */ +# define F_GETPIPE_SZ 1032 /* Set pipe page size array. */ +#endif +#ifdef __USE_XOPEN2K8 +# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with + close-on-exit set. */ +#endif + +/* For F_[GET|SET]FD. */ +#define FD_CLOEXEC 1 /* Actually anything with low bit set goes */ + +#ifndef F_RDLCK +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ +# define F_RDLCK 0 /* Read lock. */ +# define F_WRLCK 1 /* Write lock. */ +# define F_UNLCK 2 /* Remove lock. */ +#endif + + +/* For old implementation of BSD flock. */ +#ifndef F_EXLCK +# define F_EXLCK 4 /* or 3 */ +# define F_SHLCK 8 /* or 4 */ +#endif + +#ifdef __USE_MISC +/* Operations for BSD flock, also used by the kernel implementation. */ +# define LOCK_SH 1 /* Shared lock. */ +# define LOCK_EX 2 /* Exclusive lock. */ +# define LOCK_NB 4 /* Or'd with one of the above to prevent + blocking. */ +# define LOCK_UN 8 /* Remove lock. */ +#endif + +#ifdef __USE_GNU +# define LOCK_MAND 32 /* This is a mandatory flock: */ +# define LOCK_READ 64 /* ... which allows concurrent read operations. */ +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */ +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */ +#endif + +#ifdef __USE_GNU +/* Types of directory notifications that may be requested with F_NOTIFY. */ +# define DN_ACCESS 0x00000001 /* File accessed. */ +# define DN_MODIFY 0x00000002 /* File modified. */ +# define DN_CREATE 0x00000004 /* File created. */ +# define DN_DELETE 0x00000008 /* File removed. */ +# define DN_RENAME 0x00000010 /* File renamed. */ +# define DN_ATTRIB 0x00000020 /* File changed attributes. */ +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */ +#endif + + +#ifdef __USE_GNU +/* Owner types. */ +enum __pid_type + { + F_OWNER_TID = 0, /* Kernel thread. */ + F_OWNER_PID, /* Process. */ + F_OWNER_PGRP, /* Process group. */ + F_OWNER_GID = F_OWNER_PGRP /* Alternative, obsolete name. */ + }; + +/* Structure to use with F_GETOWN_EX and F_SETOWN_EX. */ +struct f_owner_ex + { + enum __pid_type type; /* Owner type of ID. */ + __pid_t pid; /* ID of owner. */ + }; +#endif + +/* Define some more compatibility macros to be backward compatible with + BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_MISC +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use misc. */ + +#ifndef __POSIX_FADV_DONTNEED +# define __POSIX_FADV_DONTNEED 4 +# define __POSIX_FADV_NOREUSE 5 +#endif +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED __POSIX_FADV_DONTNEED /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE __POSIX_FADV_NOREUSE /* Data will be accessed once. */ +#endif + + +#ifdef __USE_GNU +/* Flags for SYNC_FILE_RANGE. */ +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages + in the range before performing the + write. */ +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those + dirty pages in the range which are + not presently under writeback. */ +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in + the range after performing the + write. */ + +/* Flags for SPLICE and VMSPLICE. */ +# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */ +# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing + (but we may still block on the fd + we splice from/to). */ +# define SPLICE_F_MORE 4 /* Expect more data. */ +# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */ + + +/* Flags for fallocate. */ +# include <linux/falloc.h> + + +/* File handle structure. */ +struct file_handle +{ + unsigned int handle_bytes; + int handle_type; + /* File identifier. */ + unsigned char f_handle[0]; +}; + +/* Maximum handle size (for now). */ +# define MAX_HANDLE_SZ 128 +#endif + +__BEGIN_DECLS + +#ifdef __USE_GNU + +/* Provide kernel hint to read ahead. */ +extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count) + __THROW; + + +/* Selective file content synch'ing. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern int sync_file_range (int __fd, __off64_t __offset, __off64_t __count, + unsigned int __flags); + + +/* Splice address range into a pipe. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern ssize_t vmsplice (int __fdout, const struct iovec *__iov, + size_t __count, unsigned int __flags); + +/* Splice two files together. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout, + __off64_t *__offout, size_t __len, + unsigned int __flags); + +/* In-kernel implementation of tee for pipe buffers. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern ssize_t tee (int __fdin, int __fdout, size_t __len, + unsigned int __flags); + +/* Reserve storage for the data of the file associated with FD. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +# ifndef __USE_FILE_OFFSET64 +extern int fallocate (int __fd, int __mode, __off_t __offset, __off_t __len); +# else +# ifdef __REDIRECT +extern int __REDIRECT (fallocate, (int __fd, int __mode, __off64_t __offset, + __off64_t __len), + fallocate64); +# else +# define fallocate fallocate64 +# endif +# endif +# ifdef __USE_LARGEFILE64 +extern int fallocate64 (int __fd, int __mode, __off64_t __offset, + __off64_t __len); +# endif + + +/* Map file name to file handle. */ +extern int name_to_handle_at (int __dfd, const char *__name, + struct file_handle *__handle, int *__mnt_id, + int __flags) __THROW; + +/* Open file using the file handle. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern int open_by_handle_at (int __mountdirfd, struct file_handle *__handle, + int __flags); + +#endif /* use GNU */ + +__END_DECLS |