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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* $Id: fdtable.h,v 1.3 2002/03/11 20:50:49 hyperion Exp $
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*/
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/*
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* psx/fdtable.h
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*
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* POSIX+ subsystem file descriptor table data structure
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*
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* This file is part of the ReactOS Operating System.
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*
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* Contributors:
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* Created by KJK::Hyperion <noog@libero.it>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#ifndef __PSX_FDTABLE_H_INCLUDED__
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#define __PSX_FDTABLE_H_INCLUDED__
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/* INCLUDES */
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#include <limits.h>
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#include <inttypes.h>
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#include <stddef.h>
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#include <psx/safeobj.h>
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/* OBJECTS */
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/* TYPES */
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typedef struct __tagfildes_t
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{
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void *FileHandle;
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int OpenFlags;
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int FdFlags;
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size_t ExtraDataSize;
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void *ExtraData;
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} __fildes_t;
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typedef struct __tagfdtable_t
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{
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__magic_t Signature;
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int32_t LowestUnusedFileNo;
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int32_t UsedDescriptors;
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int32_t AllocatedDescriptors;
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uint32_t DescriptorsBitmap[OPEN_MAX / 32];
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__fildes_t *Descriptors;
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} __fdtable_t;
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/* CONSTANTS */
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/* PROTOTYPES */
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int __fdtable_init(__fdtable_t *);
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int __fdtable_free(__fdtable_t *);
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int __fdtable_entry_isavail(__fdtable_t *, int);
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int __fdtable_entry_nextavail(__fdtable_t *, int);
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int __fdtable_entry_add(__fdtable_t *, int, __fildes_t *, __fildes_t **);
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int __fdtable_entry_remove(__fdtable_t *, int);
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__fildes_t *__fdtable_entry_get(__fdtable_t *, int);
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/* MACROS */
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#define __FDTABLE_MAGIC MAGIC('F', 'D', 'T', 'B')
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#endif /* __PSX_FDTABLE_H_INCLUDED__ */
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/* EOF */
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