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Software 2000
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Software 2000 Volume 1 (Disc 1 of 2).iso
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u267.dms
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u267.adf
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INC9110B.LZH
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include
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sys
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fcntl.h
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C/C++ Source or Header
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1991-07-14
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2KB
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65 lines
/*
* Libraries and headers for PDC release 3.3 (C) 1989 Lionel Hummel.
* PDC Software Distribution (C) 1989 Lionel Hummel and Paul Petersen.
* PDC I/O Library (C) 1987 by J.A. Lydiatt.
*
* This code is freely redistributable upon the conditions that this
* notice remains intact and that modified versions of this file not
* be included as part of the PDC Software Distribution without the
* express consent of the copyright holders. No warrantee of any
* kind is provided with this code. For further information, contact:
*
* PDC Software Distribution Internet: BIX:
* P.O. Box 4006 or hummel@cs.uiuc.edu lhummel
* Urbana, IL 61801-8801 petersen@uicsrd.csrd.uiuc.edu
*/
/*
* fcntl.h
*
* Structures and symbolic constants used by PDC to manage file I/O.
*/
/*
* 14.7.91 sjw; mods to allow dup(), dup2() implementation. _devtab[]
* now points to an array of _devices rather than being one.
* I've included the two declarations here to make sure the
* correct interpretation is being used. Also, ensure
* only effective once.
*/
#ifndef __FCNTL_H__
#define __FCNTL_H__
#define O_RDONLY 0x0000
#define O_WRONLY 0x0001
#define O_RDWR 0x0002
#define O_CREAT 0x0100
#define O_TRUNC 0x0200
#define O_EXCL 0x0400
#define O_APPEND 0x0800
#define O_STDIO 0x1000
#define _DO_FSTAT
struct _device {
long _useCount; /* Number of users of this descriptor */
long _fileHandle; /* Actually, a (struct FileHandle *) */
long _mode; /* The mode flags of this device */
#ifdef _DO_FSTAT
long _lock; /* Lock when reading (for fstat) */
#endif
};
extern struct _device *_devtab[];
extern struct _device __devtab[];
#define OPEN_MAX 20
extern short _numdev; /* may not be the same as OPEN_MAX */
#define DEF_PMODE 0666L
#endif /* __FCNTL_H__ */