/* * exportfs.h - definitions for exporting file server */ #define DEBUG		if(!dbg);else fprint#define fidhash(s)	fhash[s%FHASHSIZE] typedef struct Fsrpc Fsrpc;typedef struct Fid Fid;typedef struct File File;typedef struct Proc Proc; struct Fsrpc{	int	busy;		/* Work buffer has pending rpc to service */	int	pid;		/* Pid of slave process executing the rpc */	int	canint;		/* Interrupt gate */	int	flushtag;	/* Tag on which to reply to flush */	Fcall	work;		/* Plan 9 incoming Fcall */	char	buf[MAXFDATA+MAXMSG];	/* Data buffer */}; struct Fid{	int	fid;		/* system fd for i/o */	int	offset;		/* current file offset */	File	*f;		/* File attached to this fid */	int	mode;	int	nr;		/* fid number */	Fsrpc	*mpend;		/* Split transaction mount */	int	mid;		/* Mount id */	Fid	*next;		/* hash link */}; struct File{	char	name[NAMELEN];	Qid	qid;	File	*parent;	File	*child;	File	*childlist;}; struct Proc{	int	pid;	int	busy;	Proc	*next;}; enum{	MAXPROC		= 16,	DIRCHUNK	= (50*DIRLEN),	FHASHSIZE	= 64,	Nr_workbufs 	= 16,	Fidchunk	= 1000,	Npsmpt		= 32,}; enum{	Ebadfid,	Enotdir,	Edupfid,	Eopen,	Exmnt,	Enoauth,	Emip,	Enopsmt,}; Extern Fsrpc	*Workq;Extern int  	dbg;Extern File	*root;Extern File	*psmpt;Extern Fid	**fhash;Extern Fid	*fidfree;Extern int	qid;Extern Proc	*Proclist;Extern char	psmap[Npsmpt]; /* File system protocol service procedures */void Xattach(Fsrpc*);void Xauth(Fsrpc*);void Xclone(Fsrpc*);void Xclunk(Fsrpc*); void Xclwalk(Fsrpc*);void Xcreate(Fsrpc*);void Xflush(Fsrpc*); void Xnop(Fsrpc*);void Xremove(Fsrpc*);void Xsession(Fsrpc*);void Xstat(Fsrpc*);void Xwalk(Fsrpc*);void Xwstat(Fsrpc*);void slave(Fsrpc*); void	reply(Fcall*, Fcall*, char*);Fid 	*getfid(int);int	freefid(int);Fid	*newfid(int);Fsrpc	*getsbuf(void);void	initroot(void);void	fatal(char*);void	makepath(char*, File*, char*);File	*file(File*, char*);void	slaveopen(Fsrpc*);void	slaveread(Fsrpc*);void	slavewrite(Fsrpc*);void	blockingslave(void);void	reopen(Fid *f);void	fileseek(Fid*, ulong);void	noteproc(int, char*);void	flushaction(void*, char*);void	pushfcall(char*);