/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #pragma	src	"/sys/src/libbio"#pragma	lib	"libbio.a" typedef	struct	Biobuf	Biobuf;typedef	struct	Biobufhdr	Biobufhdr; enum{	Bsize		= 8*1024,	Bungetsize	= UTFmax+1,		/* space for ungetc */	Bmagic		= 0x314159,	Beof		= -1,	Bbad		= -2, 	Binactive	= 0,		/* states */	Bractive,	Bwactive,	Bracteof,}; struct	Biobufhdr{	int	icount;		/* neg num of bytes at eob */	int	ocount;		/* num of bytes at bob */	int	rdline;		/* num of bytes after rdline */	int	runesize;	/* num of bytes of last getrune */	int	state;		/* r/w/inactive */	int	fid;		/* open file */	int	flag;		/* magic if malloc'ed */	vlong	offset;		/* offset of buffer in file */	int	bsize;		/* size of buffer */	uchar*	bbuf;		/* pointer to beginning of buffer */	uchar*	ebuf;		/* pointer to end of buffer */	uchar*	gbuf;		/* pointer to good data in buf */}; struct	Biobuf{	Biobufhdr;	uchar	b[Bungetsize+Bsize];}; /* Dregs, redefined as functions for backwards compatibility */#define	BGETC(bp)	Bgetc(bp)#define	BPUTC(bp,c)	Bputc(bp,c)#define	BOFFSET(bp)	Boffset(bp)#define	BLINELEN(bp)	Blinelen(bp)#define	BFILDES(bp)	Bfildes(bp) int	Bbuffered(Biobufhdr*);int	Bfildes(Biobufhdr*);int	Bflush(Biobufhdr*);int	Bgetc(Biobufhdr*);int	Bgetd(Biobufhdr*, double*);long	Bgetrune(Biobufhdr*);int	Binit(Biobuf*, int, int);int	Binits(Biobufhdr*, int, int, uchar*, int);int	Blinelen(Biobufhdr*);vlong	Boffset(Biobufhdr*);Biobuf*	Bopen(char*, int);int	Bprint(Biobufhdr*, char*, ...);int	Bvprint(Biobufhdr*, char*, va_list);int	Bputc(Biobufhdr*, int);int	Bputrune(Biobufhdr*, long);void*	Brdline(Biobufhdr*, int);char*	Brdstr(Biobufhdr*, int, int);long	Bread(Biobufhdr*, void*, long);vlong	Bseek(Biobufhdr*, vlong, int);int	Bterm(Biobufhdr*);int	Bungetc(Biobufhdr*);int	Bungetrune(Biobufhdr*);long	Bwrite(Biobufhdr*, void*, long); #pragma	varargck	argpos	Bprint	2