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* Copyright (c) 1987,1997, Prentice Hall
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*
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* - Redistributions in binary form must reproduce the above
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* with the distribution.
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*/
/** @addtogroup FileSystemImpl
* @{
*/
/**
* @file file.h
* @brief Filp table definition
*/
#ifndef _FILE_H
#define _FILE_H
/**
* This is the filp table. It is an intermediary between file descriptors and
* inodes. A slot is free if filp_count == 0.
*/
typedef struct {
mode_t filp_mode; /**< RW bits, telling how file is opened */
int filp_flags; /**< flags from open and fcntl */
int filp_count; /**< how many file descriptors share this slot?*/
inode_t *filp_ino; /**< pointer to the inode */
offset_t filp_pos; /**< file position */
} filp_t;
extern filp_t filp[NR_FILPS];
#define FILP_CLOSED 0 /**< filp_mode: associated device closed */
#define NIL_FILP (filp_t *) 0 /**< indicates absence of a filp slot */
#endif /* _FILE_H */
/**
* }
*/