127 struct _vfp {  struct
128 	FILE		*_vfpFile;	/* -> opened FILE */  argument
129 	char		*_vfpCurr;	/* -> current byte to read/write */  argument
130 	char		*_vfpHighWater;	/* -> last byte modified */  argument
131 	char		*_vfpEnd;	/* -> last data byte */  argument
132 	char		*_vfpPath;	/* -> path associated with FILE */  argument
133 	char		*_vfpStart;	/* -> first data byte */  argument
134 	void		*_vfpExtra;	/* undefined */  argument
135 	size_t		_vfpSize;	/* size of mapped/allocated area */  argument
136 	size_t		_vfpMapSize;	/* # mapped bytes */  argument
137 	VFPFLAGS_T	_vfpFlags;	/* flags associated with vfp/data */  argument
138 	int		_vfpOverflow;	/* non-zero if buffer write overflow */  argument
139 	blkcnt_t	_vfpCkStBlocks;	/* checkpoint # blocks */  argument
140 	dev_t		_vfpCkDev;	/* checkpoint device i.d. */  argument
141 	ino_t		_vfpCkIno;	/* checkpoint inode # */  argument
142 	off_t		_vfpCkSize;	/* checkpoint size */  argument
143 	time_t		_vfpCkMtime;	/* checkpoint modification time */  argument