a

exportfs/exportfs.h

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+/*
+ * exportfs.h - definitions for exporting file server
+ */
+
+#define DEBUG		if(!dbg){}else fprint
+#define DFD		2
+#define fidhash(s)	fhash[s%FHASHSIZE]
+
+#define Proc	Exproc
+
+
+typedef struct Fsrpc Fsrpc;
+typedef struct Fid Fid;
+typedef struct File File;
+typedef struct Proc Proc;
+typedef struct Qidtab Qidtab;
+
+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 */
+	uchar	*buf;	/* Data buffer */
+};
+
+struct Fid
+{
+	int	fid;		/* system fd for i/o */
+	File	*f;		/* File attached to this fid */
+	int	mode;
+	int	nr;		/* fid number */
+	int	mid;		/* Mount id */
+	Fid	*next;		/* hash link */
+};
+
+struct File
+{
+	char	*name;
+	int	ref;
+	Qid	qid;
+	Qidtab	*qidt;
+	int	inval;
+	File	*parent;
+	File	*child;
+	File	*childlist;
+};
+
+struct Proc
+{
+	int	pid;
+	int	busy;
+	Proc	*next;
+};
+
+struct Qidtab
+{
+	int	ref;
+	int	type;
+	int	dev;
+	vlong	path;
+	vlong	uniqpath;
+	Qidtab	*next;
+};
+
+enum
+{
+	MAXPROC		= 50,
+	FHASHSIZE	= 64,
+	Nr_workbufs 	= 50,
+	Fidchunk	= 1000,
+	Npsmpt		= 32,
+	Nqidbits		= 5,
+	Nqidtab		= (1<<Nqidbits),
+};
+
+#define Enomem Exenomem
+#define Ebadfix Exebadfid
+#define Enotdir Exenotdir
+#define Edupfid Exedupfid
+#define Eopen Exeopen
+#define Exmnt Exexmnt
+#define Emip Exemip
+#define Enopsmt Exenopsmt
+
+extern char Ebadfid[];
+extern char Enotdir[];
+extern char Edupfid[];
+extern char Eopen[];
+extern char Exmnt[];
+extern char Enomem[];
+extern char Emip[];
+extern char Enopsmt[];
+
+Extern Fsrpc	*Workq;
+Extern int  	dbg;
+Extern File	*root;
+Extern File	*psmpt;
+Extern Fid	**fhash;
+Extern Fid	*fidfree;
+Extern Proc	*Proclist;
+Extern char	psmap[Npsmpt];
+Extern Qidtab	*qidtab[Nqidtab];
+Extern ulong	messagesize;
+Extern int		srvfd;
+
+/* File system protocol service procedures */
+void Xattach(Fsrpc*);
+void Xauth(Fsrpc*);
+void Xclunk(Fsrpc*); 
+void Xcreate(Fsrpc*);
+void Xflush(Fsrpc*); 
+void Xnop(Fsrpc*);
+void Xremove(Fsrpc*);
+void Xstat(Fsrpc*);
+void Xversion(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*, ...);
+char*	makepath(File*, char*);
+File	*file(File*, char*);
+void	freefile(File*);
+void	slaveopen(Fsrpc*);
+void	slaveread(Fsrpc*);
+void	slavewrite(Fsrpc*);
+void	blockingslave(void*);
+void	reopen(Fid *f);
+void	noteproc(int, char*);
+void	flushaction(void*, char*);
+void	pushfcall(char*);
+Qidtab* uniqueqid(Dir*);
+void	freeqid(Qidtab*);
+char*	estrdup(char*);
+void*	emallocz(uint);
+int		readmessage(int, char*, int);
+
+#define notify
+#define noted
+#define exits