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

/* O_*, F_*, FD_* bit values for Linux.
   Copyright (C) 1995, 1996, 1997, 1998, 2000, 2002, 2003
	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>


/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
   located on an ext2 file system */
#define O_ACCMODE	0x0003
#define O_RDONLY	0x0000
#define O_WRONLY	0x0001
#define O_RDWR		0x0002
#define O_APPEND	0x0008
#define O_SYNC		0x0010
#define O_NONBLOCK	0x0080
#define O_CREAT		0x0100	/* not fcntl */
#define O_TRUNC		0x0200	/* not fcntl */
#define O_EXCL		0x0400	/* not fcntl */
#define O_NOCTTY	0x0800	/* not fcntl */
#define O_FSYNC		O_SYNC
#define O_ASYNC		0x1000

#ifdef __USE_LARGEFILE64
# define O_LARGEFILE	0x2000	/* Allow large file opens.  */
#endif

#ifdef __USE_GNU
# define O_NOFOLLOW	0x20000	/* Do not follow links.	 */
# define O_DIRECT	0x8000	/* Direct disk access hint.  */
# define O_DIRECTORY	0x10000	/* Must be a directory.	 */
#endif

#define O_NDELAY	O_NONBLOCK

/* For now Linux has no 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	14	/* 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	33	/* Get record locking info.  */
#define F_SETLK64	34	/* Set record locking info (non-blocking).  */
#define F_SETLKW64	35	/* Set record locking info (blocking).	*/

#if defined __USE_BSD || defined __USE_XOPEN2K
# define F_SETOWN	24	/* Get owner of socket (receiver of SIGIO).  */
# define F_GETOWN	23	/* 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]FL */
#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

typedef 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.  */
#if ! (defined _ABI64 && _MIPS_SIM == _ABI64)
    /* The 64-bit flock structure, used by the n64 ABI, and for 64-bit
       fcntls in o32 and n32, never has this field.  */
    long int l_sysid;
#endif
#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.  */
#if ! defined __USE_FILE_OFFSET64 && ! (defined _ABI64 && _MIPS_SIM == _ABI64)
    /* The 64-bit flock structure, used by the n64 ABI, and for 64-bit
       flock in o32 and n32, never has this field.  */
    long int pad[4];
#endif
} flock_t;

#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
Commit	Line	Data
f21acc89	1	/* O_, F_, FD_* bit values for Linux.
26b54a6b AO	2	Copyright (C) 1995, 1996, 1997, 1998, 2000, 2002, 2003
26b54a6b AO	3	Free Software Foundation, Inc.
f21acc89 UD	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.
f21acc89 UD	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.
f21acc89	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. */
f21acc89 UD	20
f21acc89 UD	21	#ifndef _FCNTL_H
dfd2257a	22	# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
f21acc89 UD	23	#endif
	24
	25	#include <sys/types.h>
	26
	27
f21acc89 UD	28	/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
	29	located on an ext2 file system */
	30	#define O_ACCMODE 0x0003
	31	#define O_RDONLY 0x0000
	32	#define O_WRONLY 0x0001
	33	#define O_RDWR 0x0002
	34	#define O_APPEND 0x0008
	35	#define O_SYNC 0x0010
	36	#define O_NONBLOCK 0x0080
1df99b5f	37	#define O_CREAT 0x0100 /* not fcntl */
f21acc89 UD	38	#define O_TRUNC 0x0200 /* not fcntl */
	39	#define O_EXCL 0x0400 /* not fcntl */
	40	#define O_NOCTTY 0x0800 /* not fcntl */
	41	#define O_FSYNC O_SYNC
9ffbb612 UD	42	#define O_ASYNC 0x1000
9ffbb612 UD	43
c79772f5	44	#ifdef __USE_LARGEFILE64
fc40fc6c	45	# define O_LARGEFILE 0x2000 /* Allow large file opens. */
c79772f5 UD	46	#endif
	47
	48	#ifdef __USE_GNU
73ea3b1b	49	# define O_NOFOLLOW 0x20000 /* Do not follow links. */
fc40fc6c	50	# define O_DIRECT 0x8000 /* Direct disk access hint. */
1df99b5f	51	# define O_DIRECTORY 0x10000 /* Must be a directory. */
9ffbb612	52	#endif
f21acc89 UD	53
	54	#define O_NDELAY O_NONBLOCK
	55
c79772f5	56	/* For now Linux has no synchronisity options for data and read
1df99b5f	57	operations. We define the symbols here but let them do the same as
c79772f5 UD	58	O_SYNC since this is a superset. */
	59	#if defined __USE_POSIX199309 \|\| defined __USE_UNIX98
	60	# define O_DSYNC O_SYNC /* Synchronize data. */
1df99b5f	61	# define O_RSYNC O_SYNC /* Synchronize read operations. */
c79772f5 UD	62	#endif
c79772f5 UD	63
dfd2257a UD	64	/* Values for the second argument to `fcntl'. */
	65	#define F_DUPFD 0 /* Duplicate file descriptor. */
	66	#define F_GETFD 1 /* Get file descriptor flags. */
	67	#define F_SETFD 2 /* Set file descriptor flags. */
	68	#define F_GETFL 3 /* Get file status flags. */
	69	#define F_SETFL 4 /* Set file status flags. */
f622c1a7 AJ	70	#ifndef __USE_FILE_OFFSET64
	71	# define F_GETLK 14 /* Get record locking info. */
	72	# define F_SETLK 6 /* Set record locking info (non-blocking). */
1df99b5f	73	# define F_SETLKW 7 /* Set record locking info (blocking). */
f622c1a7	74	#else
1df99b5f	75	# define F_GETLK F_GETLK64 /* Get record locking info. */
f622c1a7 AJ	76	# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
	77	# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
	78	#endif
dfd2257a	79
f622c1a7 AJ	80	#define F_GETLK64 33 /* Get record locking info. */
f622c1a7 AJ	81	#define F_SETLK64 34 /* Set record locking info (non-blocking). */
1df99b5f	82	#define F_SETLKW64 35 /* Set record locking info (blocking). */
dfd2257a	83
01ed6c51	84	#if defined __USE_BSD \|\| defined __USE_XOPEN2K
df777c40 UD	85	# define F_SETOWN 24 /* Get owner of socket (receiver of SIGIO). */
	86	# define F_GETOWN 23 /* Set owner of socket (receiver of SIGIO). */
	87	#endif
	88
	89	#ifdef __USE_GNU
	90	# define F_SETSIG 10 /* Set number of signal to be sent. */
	91	# define F_GETSIG 11 /* Get number of signal to be sent. */
dfd2257a	92	#endif
f21acc89	93
a67b0400	94	#ifdef __USE_GNU
1df99b5f AJ	95	# define F_SETLEASE 1024 /* Set a lease. */
	96	# define F_GETLEASE 1025 /* Enquire what lease is active. */
	97	# define F_NOTIFY 1026 /* Request notfications on a directory. */
a67b0400 AJ	98	#endif
a67b0400 AJ	99
f21acc89 UD	100	/* for F_[GET\|SET]FL */
	101	#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
	102
dfd2257a UD	103	/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
dfd2257a UD	104	#define F_RDLCK 0 /* Read lock. */
1df99b5f AJ	105	#define F_WRLCK 1 /* Write lock. */
1df99b5f AJ	106	#define F_UNLCK 2 /* Remove lock. */
f21acc89 UD	107
	108	/* for old implementation of bsd flock () */
	109	#define F_EXLCK 4 /* or 3 */
	110	#define F_SHLCK 8 /* or 4 */
	111
4a582094 UD	112	#ifdef __USE_BSD
	113	/* Operations for bsd flock(), also used by the kernel implementation */
	114	# define LOCK_SH 1 /* shared lock */
	115	# define LOCK_EX 2 /* exclusive lock */
085320f5	116	# define LOCK_NB 4 /* or'd with one of the above to prevent
f21acc89	117	blocking */
4a582094 UD	118	# define LOCK_UN 8 /* remove lock */
4a582094 UD	119	#endif
f21acc89	120
a67b0400 AJ	121	#ifdef __USE_GNU
a67b0400 AJ	122	# define LOCK_MAND 32 /* This is a mandatory flock: */
1df99b5f	123	# define LOCK_READ 64 /* ... which allows concurrent read operations. */
a67b0400	124	# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
1df99b5f	125	# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
a67b0400 AJ	126	#endif
a67b0400 AJ	127
1df99b5f	128	#ifdef __USE_GNU
a67b0400	129	/* Types of directory notifications that may be requested with F_NOTIFY. */
1df99b5f AJ	130	# define DN_ACCESS 0x00000001 /* File accessed. */
	131	# define DN_MODIFY 0x00000002 /* File modified. */
	132	# define DN_CREATE 0x00000004 /* File created. */
	133	# define DN_DELETE 0x00000008 /* File removed. */
	134	# define DN_RENAME 0x00000010 /* File renamed. */
	135	# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
	136	# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
	137	#endif
a67b0400	138
dfd2257a UD	139	typedef struct flock
dfd2257a UD	140	{
1df99b5f	141	short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
dfd2257a UD	142	short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
	143	#ifndef __USE_FILE_OFFSET64
	144	__off_t l_start; /* Offset where the lock begins. */
	145	__off_t l_len; /* Size of the locked area; zero means until EOF. */
26b54a6b AO	146	#if ! (defined _ABI64 && _MIPS_SIM == _ABI64)
	147	/* The 64-bit flock structure, used by the n64 ABI, and for 64-bit
	148	fcntls in o32 and n32, never has this field. */
	149	long int l_sysid;
	150	#endif
dfd2257a UD	151	#else
	152	__off64_t l_start; /* Offset where the lock begins. */
	153	__off64_t l_len; /* Size of the locked area; zero means until EOF. */
	154	#endif
dfd2257a	155	__pid_t l_pid; /* Process holding the lock. */
26b54a6b AO	156	#if ! defined __USE_FILE_OFFSET64 && ! (defined _ABI64 && _MIPS_SIM == _ABI64)
	157	/* The 64-bit flock structure, used by the n64 ABI, and for 64-bit
	158	flock in o32 and n32, never has this field. */
	159	long int pad[4];
f622c1a7 AJ	160	#endif
f622c1a7 AJ	161	} flock_t;
dfd2257a UD	162
	163	#ifdef __USE_LARGEFILE64
	164	struct flock64
	165	{
1df99b5f	166	short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
dfd2257a UD	167	short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
	168	__off64_t l_start; /* Offset where the lock begins. */
	169	__off64_t l_len; /* Size of the locked area; zero means until EOF. */
dfd2257a	170	__pid_t l_pid; /* Process holding the lock. */
dfd2257a UD	171	};
dfd2257a UD	172	#endif
f21acc89 UD	173
	174
	175	/* Define some more compatibility macros to be backward compatible with
	176	BSD systems which did not managed to hide these kernel macros. */
	177	#ifdef __USE_BSD
dfd2257a UD	178	# define FAPPEND O_APPEND
	179	# define FFSYNC O_FSYNC
	180	# define FASYNC O_ASYNC
	181	# define FNONBLOCK O_NONBLOCK
	182	# define FNDELAY O_NDELAY
f21acc89	183	#endif /* Use BSD. */
bb8e0116 UD	184
	185	/* Advise to `posix_fadvise'. */
	186	#ifdef __USE_XOPEN2K
	187	# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
	188	# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
1df99b5f	189	# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
bb8e0116 UD	190	# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
	191	# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
	192	# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
	193	#endif