/*

* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

* which accompanies this distribution, and is available

* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

/**

 @file

 @publishedAll

 @released

*/

#ifndef	_FCNTL_

#define	_FCNTL_

#ifdef __cplusplus

extern "C" {

#endif

#include <_ansi.h>

#define	_FOPEN		(-1)	/* from sys/file.h, kernel use only */

#define	_FREAD		0x0001	/* read enabled */

#define	_FWRITE		0x0002	/* write enabled */

#define	_FNDELAY	0x0004	/* non blocking I/O (4.2 style) */

#define	_FAPPEND	0x0008	/* append (writes guaranteed at the end) */

#define	_FMARK		0x0010	/* internal; mark during gc() */

#define	_FDEFER		0x0020	/* internal; defer for next gc pass */

#define	_FASYNC		0x0040	/* signal pgrp when data ready */

#define	_FSHLOCK	0x0080	/* BSD flock() shared lock present */

#define	_FEXLOCK	0x0100	/* BSD flock() exclusive lock present */

#define	_FCREAT		0x0200	/* open with file create */

#define	_FTRUNC		0x0400	/* open with truncation */

#define	_FEXCL		0x0800	/* error on open if file exists */

#define	_FNBIO		0x1000	/* non blocking I/O (sys5 style) */

#define	_FSYNC		0x2000	/* do all writes synchronously */

#define	_FNONBLOCK	0x4000	/* non blocking I/O (POSIX style) */

#define	_FNOCTTY	0x8000	/* don't assign a ctty on this open */

#define _FBUFFERED  0x10000 /* buffer at the interface to the file system */

#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)

/**

Flag values for open(2) and fcntl(2)

The kernel adds 1 to the open modes to turn it into some

combination of FREAD and FWRITE.

*/

#define	O_RDONLY	0		/* +1 == FREAD */

#define	O_WRONLY	1		/* +1 == FWRITE */

#define	O_RDWR		2		/* +1 == FREAD|FWRITE */

#define	O_APPEND	_FAPPEND

#define	O_CREAT		_FCREAT

#define	O_TRUNC		_FTRUNC

#define	O_EXCL		_FEXCL

/*	O_SYNC		_FSYNC		not posix, defined below */

/*	O_NDELAY	_FNDELAY 	set in include/fcntl.h */

/*	O_NDELAY	_FNBIO 		set in 5include/fcntl.h */

#define	O_NONBLOCK	_FNONBLOCK

#define	O_NOCTTY	_FNOCTTY

#define _FBINARY        0x10000

#define _FTEXT          0x20000

#define O_BINARY	_FBINARY

#define O_TEXT		_FTEXT

#define O_BUFFERED  _FBUFFERED

#ifndef	_POSIX_SOURCE

#define	O_SYNC		_FSYNC

/**

Flags that work for fcntl(fd, F_SETFL, FXXXX)

*/

#define	FAPPEND		_FAPPEND

#define	FSYNC		_FSYNC

#define	FASYNC		_FASYNC

#define	FNBIO		_FNBIO

#define	FNONBIO		_FNONBLOCK	/* XXX fix to be NONBLOCK everywhere */

#define	FNDELAY		_FNDELAY

/**

Flags that are disallowed for fcntl's (FCNTLCANT);

used for opens, internal state, or locking.

*/

#define	FREAD		_FREAD

#define	FWRITE		_FWRITE

#define	FMARK		_FMARK

#define	FDEFER		_FDEFER

#define	FSHLOCK		_FSHLOCK

#define	FEXLOCK		_FEXLOCK

/**

The rest of the flags, used only for opens

*/

#define	FOPEN		_FOPEN

#define	FCREAT		_FCREAT

#define	FTRUNC		_FTRUNC

#define	FEXCL		_FEXCL

#define	FNOCTTY		_FNOCTTY

#define FBUFFERED   _FBUFFERED

#endif	/* !_POSIX_SOURCE */

/**

XXX close on exec request; must match UF_EXCLOSE in user.h 

*/

#define	FD_CLOEXEC	1	/* posix */

/** 

fcntl(2) requests 

*/

#define	F_DUPFD		0	/* Duplicate fildes */

#define	F_GETFD		1	/* Get fildes flags (close on exec) */

#define	F_SETFD		2	/* Set fildes flags (close on exec) */

#define	F_GETFL		3	/* Get file flags */

#define	F_SETFL		4	/* Set file flags */

#ifndef	_POSIX_SOURCE

#define	F_GETOWN 	5	/* Get owner - for ASYNC */

#define	F_SETOWN 	6	/* Set owner - for ASYNC */

#endif	/* !_POSIX_SOURCE */

#define	F_GETLK  	7	/* Get record-locking information */

#define	F_SETLK  	8	/* Set or Clear a record-lock (Non-Blocking) */

#define	F_SETLKW 	9	/* Set or Clear a record-lock (Blocking) */

#ifndef	_POSIX_SOURCE

#define	F_RGETLK 	10	/* Test a remote lock to see if it is blocked */

#define	F_RSETLK 	11	/* Set or unlock a remote lock */

#define	F_CNVT 		12	/* Convert a fhandle to an open fd */

#define	F_RSETLKW 	13	/* Set or Clear remote record-lock(Blocking) */

#endif	/* !_POSIX_SOURCE */

/** 

fcntl(2) flags (l_type field of flock structure) 

*/

#define	F_RDLCK		1	/* read lock */

#define	F_WRLCK		2	/* write lock */

#define	F_UNLCK		3	/* remove lock(s) */

#ifndef	_POSIX_SOURCE

#define	F_UNLKSYS	4	/* remove remote locks for a given system */

#endif	/* !_POSIX_SOURCE */

/*#include <sys/stdtypes.h>*/

/** 

file segment locking set data type - information passed to system by user 

*/

struct flock {

	short	l_type;		/* F_RDLCK, F_WRLCK, or F_UNLCK */

	short	l_whence;	/* flag to choose starting offset */

	long	l_start;	/* relative offset, in bytes */

	long	l_len;		/* length, in bytes; 0 means lock to EOF */

	short	l_pid;		/* returned with F_GETLK */

	short	l_xxx;		/* reserved for future use */

};

#ifndef	_POSIX_SOURCE

/** 

extended file segment locking set data type 

*/

struct eflock {

	short	l_type;		/* F_RDLCK, F_WRLCK, or F_UNLCK */

	short	l_whence;	/* flag to choose starting offset */

	long	l_start;	/* relative offset, in bytes */

	long	l_len;		/* length, in bytes; 0 means lock to EOF */

	short	l_pid;		/* returned with F_GETLK */

	short	l_xxx;		/* reserved for future use */

	long	l_rpid;		/* Remote process id wanting this lock */

	long	l_rsys;		/* Remote system id wanting this lock */

};

#endif	/* !_POSIX_SOURCE */

#include <sys/types.h>

#include <sys/stat.h>		/* sigh. for the mode bits for open/creat */

#define creat(n,m)	open(n,O_WRONLY|O_CREAT|O_TRUNC,m)

IMPORT_C int open	(const char *, int, ...);

IMPORT_C int wopen	(const wchar_t *, int, ...);

extern int fcntl	(int, int, ...);

#ifdef __cplusplus

}

#endif

#endif	/* !_FCNTL_ */