20090320-1900

1 files changed, 98 insertions, 0 deletions

diff --git a/include/styxserver.h b/include/styxserver.h
new file mode 100644
index 00000000..09b83c74
--- /dev/null
+++ b/include/styxserver.h
@@ -0,0 +1,98 @@
+
+#define Qroot	0
+
+#define MSGMAX	((((8192+128)*2)+3) & ~3)
+
+extern char Enomem[];	/* out of memory */
+extern char Eperm[];		/* permission denied */
+extern char Enodev[];	/* no free devices */
+extern char Ehungup[];	/* i/o on hungup channel */
+extern char Eexist[];		/* file exists */
+extern char Enonexist[];	/* file does not exist */
+extern char Ebadcmd[];	/* bad command */
+extern char Ebadarg[];	/* bad arguments */
+
+typedef uvlong	Path;
+typedef struct Styxserver	Styxserver;
+typedef struct Styxops Styxops;
+typedef struct Styxfile Styxfile;
+typedef struct Client Client;
+typedef struct Fid Fid;
+
+struct Styxserver
+{
+	Styxops *ops;
+	Path qidgen;
+	int connfd;
+	int needfile;
+	Client *clients;
+	Client *curc;
+	Styxfile *root;
+	Styxfile **ftab;
+	void	*priv;	/* private */
+};
+
+struct Client
+{
+	Styxserver *server;
+	Client *next;
+	int		fd;
+	char	msg[MSGMAX];
+	uint		nread;		/* valid bytes in msg (including nc)*/
+	int		nc;			/* bytes consumed from front of msg by convM2S */
+	char	data[MSGMAX];	/* Tread/Rread data */
+	int		state;
+	Fid		*fids;
+	char		*uname;	/* uid */
+	char		*aname;	/* attach name */
+	void		*u;
+};
+
+struct Styxops
+{
+	char *(*newclient)(Client *c);
+	char *(*freeclient)(Client *c);
+
+	char *(*attach)(char *uname, char *aname);
+	char *(*walk)(Qid *qid, char *name);
+	char *(*open)(Qid *qid, int mode);
+	char *(*create)(Qid *qid, char *name, int perm, int mode);
+	char *(*read)(Qid qid, char *buf, ulong *n, vlong offset);
+	char *(*write)(Qid qid, char *buf, ulong *n, vlong offset);
+	char *(*close)(Qid qid, int mode);
+	char *(*remove)(Qid qid);
+	char *(*stat)(Qid qid, Dir *d);
+	char *(*wstat)(Qid qid, Dir *d);
+};
+
+struct Styxfile
+{
+	Dir	d;
+	Styxfile *parent;
+	Styxfile *child;
+	Styxfile *sibling;
+	Styxfile *next;
+	int ref;
+	int open;
+	void	*u;
+};
+
+char *styxinit(Styxserver *server, Styxops *ops, char *port, int perm, int needfile);
+char *styxwait(Styxserver *server);
+char *styxprocess(Styxserver *server);
+char *styxend(Styxserver *server);
+
+Client *styxclient(Styxserver *server);
+
+Styxfile *styxaddfile(Styxserver *server, Path pqid, Path qid, char *name, int mode, char *owner);
+Styxfile *styxadddir(Styxserver *server, Path pqid, Path qid, char *name, int mode, char *owner);
+int styxrmfile(Styxserver *server, Path qid);
+Styxfile *styxfindfile(Styxserver *server, Path qid);
+
+int	styxperm(Styxfile *file, char *uid, int mode);
+long styxreadstr(ulong off, char *buf, ulong n, char *str);
+Qid styxqid(int path, int isdir);
+void *styxmalloc(int n);
+void styxfree(void *p);
+void styxdebug(void);
+void styxsetowner(char*);