[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / powerpc / bits / fcntl.h

/* O_*, F_*, FD_* bit values for Linux/PowerPC.
   Copyright (C) 1995, 1996, 1997, 1998, 2000, 2003, 2004, 2006
   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#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 an ext2 file system */
#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		010000
#define O_FSYNC		O_SYNC
#define O_ASYNC		020000

#ifdef __USE_GNU
# define O_DIRECT	0400000	/* Direct disk access.	*/
# define O_DIRECTORY	 040000	/* Must be a directory.	 */
# define O_NOFOLLOW	0100000	/* Do not follow links.	 */
# define O_NOATIME	01000000 /* Do not set atime.  */
#endif

#ifdef __USE_LARGEFILE64
# define O_LARGEFILE	0200000
#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_SYNC	/* 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 __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).	*/

#if defined __USE_BSD || defined __USE_UNIX98
# define F_SETOWN	8	/* Get owner of socket (receiver of SIGIO).  */
# define F_GETOWN	9	/* Set owner of socket (receiver of 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.  */
#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.	 */
#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

/* 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.  */
#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.  */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
			    unsigned int __flags);


/* Splice address range into a pipe.  */
extern int vmsplice (int __fdout, const struct iovec *__iov, size_t __count,
		     unsigned int __flags);

/* Splice two files together.  */
extern int splice (int __fdin, __off64_t *__offin, int __fdout,
		   __off64_t *__offout, size_t __len, unsigned int __flags)
    __THROW;

/* In-kernel implementation of tee for pipe buffers.  */
extern int tee (int __fdin, int __fdout, size_t __len, unsigned int __flags)
    __THROW;

#endif

__END_DECLS
Commit	Line	Data
73a061bb	1	/* O_, F_, FD_* bit values for Linux/PowerPC.
0ecb606c	2	Copyright (C) 1995, 1996, 1997, 1998, 2000, 2003, 2004, 2006
5ce98c3f	3	Free Software Foundation, Inc.
b455bec2 AJ	4	This file is part of the GNU C Library.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
b455bec2 AJ	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
41bdb6e2 AJ	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2 AJ	14	Lesser General Public License for more details.
b455bec2	15
41bdb6e2 AJ	16	You should have received a copy of the GNU Lesser General Public
	17	License along with the GNU C Library; if not, write to the Free
	18	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	19	02111-1307 USA. */
b455bec2 AJ	20
	21	#ifndef _FCNTL_H
	22	# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
	23	#endif
	24
b455bec2	25	#include <sys/types.h>
0ecb606c JJ	26	#ifdef __USE_GNU
	27	# include <bits/uio.h>
	28	#endif
	29
b455bec2 AJ	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_ACCMODE 0003
	34	#define O_RDONLY 00
	35	#define O_WRONLY 01
	36	#define O_RDWR 02
	37	#define O_CREAT 0100 /* not fcntl */
	38	#define O_EXCL 0200 /* not fcntl */
	39	#define O_NOCTTY 0400 /* not fcntl */
	40	#define O_TRUNC 01000 /* not fcntl */
	41	#define O_APPEND 02000
	42	#define O_NONBLOCK 04000
	43	#define O_NDELAY O_NONBLOCK
	44	#define O_SYNC 010000
	45	#define O_FSYNC O_SYNC
	46	#define O_ASYNC 020000
	47
	48	#ifdef __USE_GNU
73a061bb RM	49	# define O_DIRECT 0400000 /* Direct disk access. */
73a061bb RM	50	# define O_DIRECTORY 040000 /* Must be a directory. */
1df99b5f	51	# define O_NOFOLLOW 0100000 /* Do not follow links. */
c18f7e37	52	# define O_NOATIME 01000000 /* Do not set atime. */
b455bec2 AJ	53	#endif
	54
	55	#ifdef __USE_LARGEFILE64
	56	# define O_LARGEFILE 0200000
	57	#endif
	58
	59	/* For now Linux has synchronisity options for data and read operations.
	60	We define the symbols here but let them do the same as O_SYNC since
1df99b5f	61	this is a superset. */
b455bec2 AJ	62	#if defined __USE_POSIX199309 \|\| defined __USE_UNIX98
b455bec2 AJ	63	# define O_DSYNC O_SYNC /* Synchronize data. */
1df99b5f	64	# define O_RSYNC O_SYNC /* Synchronize read operations. */
b455bec2 AJ	65	#endif
	66
	67	/* Values for the second argument to `fcntl'. */
	68	#define F_DUPFD 0 /* Duplicate file descriptor. */
	69	#define F_GETFD 1 /* Get file descriptor flags. */
	70	#define F_SETFD 2 /* Set file descriptor flags. */
	71	#define F_GETFL 3 /* Get file status flags. */
	72	#define F_SETFL 4 /* Set file status flags. */
b455bec2 AJ	73	#ifndef __USE_FILE_OFFSET64
	74	# define F_GETLK 5 /* Get record locking info. */
	75	# define F_SETLK 6 /* Set record locking info (non-blocking). */
1df99b5f	76	# define F_SETLKW 7 /* Set record locking info (blocking). */
b455bec2	77	#else
1df99b5f	78	# define F_GETLK F_GETLK64 /* Get record locking info. */
b455bec2 AJ	79	# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
	80	# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
	81	#endif
4ccacaa1 AJ	82	#define F_GETLK64 12 /* Get record locking info. */
4ccacaa1 AJ	83	#define F_SETLK64 13 /* Set record locking info (non-blocking). */
1df99b5f	84	#define F_SETLKW64 14 /* Set record locking info (blocking). */
b455bec2	85
5ce98c3f	86	#if defined __USE_BSD \|\| defined __USE_UNIX98
b455bec2 AJ	87	# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
	88	# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
	89	#endif
	90
	91	#ifdef __USE_GNU
	92	# define F_SETSIG 10 /* Set number of signal to be sent. */
	93	# define F_GETSIG 11 /* Get number of signal to be sent. */
	94	#endif
	95
a67b0400	96	#ifdef __USE_GNU
1df99b5f AJ	97	# define F_SETLEASE 1024 /* Set a lease. */
	98	# define F_GETLEASE 1025 /* Enquire what lease is active. */
	99	# define F_NOTIFY 1026 /* Request notfications on a directory. */
a67b0400 AJ	100	#endif
a67b0400 AJ	101
0ecb606c	102	/* For F_[GET\|SET]FD. */
b455bec2 AJ	103	#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
	104
	105	/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
	106	#define F_RDLCK 0 /* Read lock. */
1df99b5f AJ	107	#define F_WRLCK 1 /* Write lock. */
1df99b5f AJ	108	#define F_UNLCK 2 /* Remove lock. */
b455bec2	109
73a061bb	110	/* For old implementation of bsd flock(). */
b455bec2 AJ	111	#define F_EXLCK 4 /* or 3 */
	112	#define F_SHLCK 8 /* or 4 */
	113
	114	#ifdef __USE_BSD
73a061bb	115	/* Operations for bsd flock(), also used by the kernel implementation. */
b455bec2 AJ	116	# define LOCK_SH 1 /* shared lock */
	117	# define LOCK_EX 2 /* exclusive lock */
	118	# define LOCK_NB 4 /* or'd with one of the above to prevent
	119	blocking */
	120	# define LOCK_UN 8 /* remove lock */
	121	#endif
	122
a67b0400 AJ	123	#ifdef __USE_GNU
a67b0400 AJ	124	# define LOCK_MAND 32 /* This is a mandatory flock: */
1df99b5f	125	# define LOCK_READ 64 /* ... which allows concurrent read operations. */
a67b0400	126	# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
1df99b5f	127	# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
a67b0400 AJ	128	#endif
a67b0400 AJ	129
1df99b5f	130	#ifdef __USE_GNU
a67b0400	131	/* Types of directory notifications that may be requested with F_NOTIFY. */
1df99b5f AJ	132	# define DN_ACCESS 0x00000001 /* File accessed. */
	133	# define DN_MODIFY 0x00000002 /* File modified. */
	134	# define DN_CREATE 0x00000004 /* File created. */
	135	# define DN_DELETE 0x00000008 /* File removed. */
	136	# define DN_RENAME 0x00000010 /* File renamed. */
	137	# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
	138	# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
	139	#endif
a67b0400	140
b455bec2 AJ	141	struct flock
b455bec2 AJ	142	{
1df99b5f	143	short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
b455bec2 AJ	144	short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
	145	#ifndef __USE_FILE_OFFSET64
	146	__off_t l_start; /* Offset where the lock begins. */
	147	__off_t l_len; /* Size of the locked area; zero means until EOF. */
	148	#else
	149	__off64_t l_start; /* Offset where the lock begins. */
	150	__off64_t l_len; /* Size of the locked area; zero means until EOF. */
	151	#endif
	152	__pid_t l_pid; /* Process holding the lock. */
	153	};
	154
	155	#ifdef __USE_LARGEFILE64
	156	struct flock64
	157	{
1df99b5f	158	short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
b455bec2 AJ	159	short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
	160	__off64_t l_start; /* Offset where the lock begins. */
	161	__off64_t l_len; /* Size of the locked area; zero means until EOF. */
	162	__pid_t l_pid; /* Process holding the lock. */
	163	};
	164	#endif
	165
	166	/* Define some more compatibility macros to be backward compatible with
	167	BSD systems which did not managed to hide these kernel macros. */
	168	#ifdef __USE_BSD
	169	# define FAPPEND O_APPEND
	170	# define FFSYNC O_FSYNC
	171	# define FASYNC O_ASYNC
	172	# define FNONBLOCK O_NONBLOCK
	173	# define FNDELAY O_NDELAY
	174	#endif /* Use BSD. */
	175
	176	/* Advise to `posix_fadvise'. */
	177	#ifdef __USE_XOPEN2K
	178	# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
	179	# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
1df99b5f	180	# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
b455bec2 AJ	181	# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
	182	# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
	183	# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
	184	#endif
a658675d	185
0ecb606c JJ	186
	187	#ifdef __USE_GNU
	188	/* Flags for SYNC_FILE_RANGE. */
	189	# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
	190	in the range before performing the
	191	write. */
	192	# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
	193	dirty pages in the range which are
	194	not presently under writeback. */
	195	# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
	196	the range after performing the
	197	write. */
	198
	199	/* Flags for SPLICE and VMSPLICE. */
	200	# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
	201	# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing
	202	(but we may still block on the fd
	203	we splice from/to). */
	204	# define SPLICE_F_MORE 4 /* Expect more data. */
	205	# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */
	206	#endif
	207
a658675d UD	208	__BEGIN_DECLS
a658675d UD	209
0ecb606c JJ	210	#ifdef __USE_GNU
0ecb606c JJ	211
a658675d UD	212	/* Provide kernel hint to read ahead. */
	213	extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
	214	__THROW;
	215
0ecb606c JJ	216
	217	/* Selective file content synch'ing. */
	218	extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
	219	unsigned int __flags);
	220
	221
	222	/* Splice address range into a pipe. */
	223	extern int vmsplice (int __fdout, const struct iovec *__iov, size_t __count,
	224	unsigned int __flags);
	225
	226	/* Splice two files together. */
	227	extern int splice (int __fdin, __off64_t *__offin, int __fdout,
	228	__off64_t *__offout, size_t __len, unsigned int __flags)
	229	__THROW;
	230
	231	/* In-kernel implementation of tee for pipe buffers. */
	232	extern int tee (int __fdin, int __fdout, size_t __len, unsigned int __flags)
	233	__THROW;
	234
	235	#endif
	236
a658675d	237	__END_DECLS