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Re: Sharing of bits/fcntl.h for Linux - some questions
On 10/16/2012 09:33 PM, Andreas Jaeger wrote:
> [...]
> I'm appending the patch that I'm currently testing and would appreciate
> a first review. The patch only changes x86 - but will continue to work
> on other architectures as well,
Here's an improved patch that actually compiles. I still need to
double check that all values are the same as before. A review would be
appreciated,
Andreas
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
new file mode 100644
index 0000000..7f2199f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
@@ -0,0 +1,3 @@
+/* bits/fcntl-linux.h is architecture specific. */
+#error "This file must be supplied by every Linux architecture."
+
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl.h b/sysdeps/unix/sysv/linux/bits/fcntl.h
index be40350e..53c0cc3 100644
--- a/sysdeps/unix/sysv/linux/bits/fcntl.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl.h
@@ -1,3 +1,366 @@
-/* bits/fcntl.h is architecture specific. */
-#error "This file must be supplied by every Linux architecture."
+/* O_*, F_*, FD_* bit values for Linux.
+ Copyright (C) 2001-2012 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.h> directly; include <fcntl.h> instead."
+#endif
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+/* Get architecture specific definitions. */
+#include <bits/fcntl-linux.h>
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+ located on a few file systems. */
+#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
+#define O_NDELAY O_NONBLOCK
+#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
+
+// XX: F_GETLK/F_SETLK
+#ifndef F_GETLK
+# 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). */
+#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
+
+#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. */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+ We define the symbols here but let them do the same as O_SYNC since
+ this is a superset. */
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC __O_DSYNC /* Synchronize data. */
+# define O_RSYNC __O_SYNC /* Synchronize read operations. */
+#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_BSD || 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 notfications 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_BSD
+/* 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 attibutes. */
+# 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_BSD
+# define FAPPEND O_APPEND
+# define FFSYNC O_FSYNC
+# define FASYNC O_ASYNC
+# define FNONBLOCK O_NONBLOCK
+# define FNDELAY O_NDELAY
+#endif /* Use BSD. */
+
+#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. */
+
+
+/* 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
diff --git a/sysdeps/unix/sysv/linux/x86/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/x86/bits/fcntl-linux.h
new file mode 100644
index 0000000..2246820
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/bits/fcntl-linux.h
@@ -0,0 +1,76 @@
+/* O_*, F_*, FD_* bit values for Linux/x86.
+ Copyright (C) 2001-2012 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
+
+#ifdef __x86_64__
+# define __O_LARGEFILE 0
+#else
+# define __O_LARGEFILE 0100000
+#endif
+
+#ifdef __x86_64__
+# 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). */
+/* Not necessary, we always have 64-bit offsets. */
+# define F_GETLK64 5 /* Get record locking info. */
+# define F_SETLK64 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW64 7 /* Set record locking info (blocking). */
+#else
+# 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
+# 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
+
+
+struct flock
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+#ifndef __USE_FILE_OFFSET64
+ __off_t l_start; /* Offset where the lock begins. */
+ __off_t l_len; /* Size of the locked area; zero means until EOF. */
+#else
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+#endif
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+#endif
diff --git a/sysdeps/unix/sysv/linux/x86/bits/fcntl.h b/sysdeps/unix/sysv/linux/x86/bits/fcntl.h
deleted file mode 100644
index 9fa5ecb..0000000
--- a/sysdeps/unix/sysv/linux/x86/bits/fcntl.h
+++ /dev/null
@@ -1,337 +0,0 @@
-/* O_*, F_*, FD_* bit values for Linux/x86-64.
- Copyright (C) 2001-2012 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.h> directly; include <fcntl.h> instead."
-#endif
-
-#include <sys/types.h>
-#ifdef __USE_GNU
-# include <bits/uio.h>
-#endif
-
-
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
- located on a few file systems. */
-#define O_ACCMODE 0003
-#define O_RDONLY 00
-#define O_WRONLY 01
-#define O_RDWR 02
-#define O_CREAT 0100 /* not fcntl */
-#define O_EXCL 0200 /* not fcntl */
-#define O_NOCTTY 0400 /* not fcntl */
-#define O_TRUNC 01000 /* not fcntl */
-#define O_APPEND 02000
-#define O_NONBLOCK 04000
-#define O_NDELAY O_NONBLOCK
-#define O_SYNC 04010000
-#define O_FSYNC O_SYNC
-#define O_ASYNC 020000
-
-#ifdef __USE_XOPEN2K8
-# define O_DIRECTORY 0200000 /* Must be a directory. */
-# define O_NOFOLLOW 0400000 /* Do not follow links. */
-# define O_CLOEXEC 02000000 /* Set close_on_exec. */
-#endif
-#ifdef __USE_GNU
-# define O_DIRECT 040000 /* Direct disk access. */
-# define O_NOATIME 01000000 /* Do not set atime. */
-# define O_PATH 010000000 /* Resolve pathname but do not open file. */
-#endif
-
-/* For now Linux has synchronisity options for data and read operations.
- We define the symbols here but let them do the same as O_SYNC since
- this is a superset. */
-#if defined __USE_POSIX199309 || defined __USE_UNIX98
-# define O_DSYNC 010000 /* Synchronize data. */
-# define O_RSYNC O_SYNC /* Synchronize read operations. */
-#endif
-
-#ifdef __USE_LARGEFILE64
-# ifdef __x86_64__
-# define O_LARGEFILE 0
-# else
-# define O_LARGEFILE 0100000
-# 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. */
-#ifdef __x86_64__
-# 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). */
-/* Not necessary, we always have 64-bit offsets. */
-# define F_GETLK64 5 /* Get record locking info. */
-# define F_SETLK64 6 /* Set record locking info (non-blocking). */
-# define F_SETLKW64 7 /* Set record locking info (blocking). */
-#else
-# 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
-# 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
-
-#if defined __USE_BSD || defined __USE_UNIX98 || defined __USE_XOPEN2K8
-# define F_SETOWN 8 /* Get owner (process receiving SIGIO). */
-# define F_GETOWN 9 /* Set owner (process receiving SIGIO). */
-#endif
-
-#ifdef __USE_GNU
-# define F_SETSIG 10 /* Set number of signal to be sent. */
-# define F_GETSIG 11 /* Get number of signal to be sent. */
-# 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_SETLEASE 1024 /* Set a lease. */
-# define F_GETLEASE 1025 /* Enquire what lease is active. */
-# define F_NOTIFY 1026 /* Request notfications 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 */
-
-/* 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. */
-
-/* For old implementation of bsd flock(). */
-#define F_EXLCK 4 /* or 3 */
-#define F_SHLCK 8 /* or 4 */
-
-#ifdef __USE_BSD
-/* 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 attibutes. */
-# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
-#endif
-
-struct flock
- {
- short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
- short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
-#ifndef __USE_FILE_OFFSET64
- __off_t l_start; /* Offset where the lock begins. */
- __off_t l_len; /* Size of the locked area; zero means until EOF. */
-#else
- __off64_t l_start; /* Offset where the lock begins. */
- __off64_t l_len; /* Size of the locked area; zero means until EOF. */
-#endif
- __pid_t l_pid; /* Process holding the lock. */
- };
-
-#ifdef __USE_LARGEFILE64
-struct flock64
- {
- short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
- short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
- __off64_t l_start; /* Offset where the lock begins. */
- __off64_t l_len; /* Size of the locked area; zero means until EOF. */
- __pid_t l_pid; /* Process holding the lock. */
- };
-#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_BSD
-# define FAPPEND O_APPEND
-# define FFSYNC O_FSYNC
-# define FASYNC O_ASYNC
-# define FNONBLOCK O_NONBLOCK
-# define FNDELAY O_NDELAY
-#endif /* Use BSD. */
-
-/* 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 4 /* Don't need these pages. */
-# define POSIX_FADV_NOREUSE 5 /* 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. */
-
-
-/* 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
--
Andreas Jaeger aj@{suse.com,opensuse.org} Twitter/Identica: jaegerandi
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn,Jennifer Guild,Felix Imendörffer,HRB16746 (AG Nürnberg)
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