ref: a411870ee4640241e3c494367d922847da84f972
dir: /include/styxserver.h/
#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*);