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| 1 | |||
| 2 | #define Qroot 0 | ||
| 3 | |||
| 4 | #define MSGMAX ((((8192+128)*2)+3) & ~3) | ||
| 5 | |||
| 6 | extern char Enomem[]; /* out of memory */ | ||
| 7 | extern char Eperm[]; /* permission denied */ | ||
| 8 | extern char Enodev[]; /* no free devices */ | ||
| 9 | extern char Ehungup[]; /* i/o on hungup channel */ | ||
| 10 | extern char Eexist[]; /* file exists */ | ||
| 11 | extern char Enonexist[]; /* file does not exist */ | ||
| 12 | extern char Ebadcmd[]; /* bad command */ | ||
| 13 | extern char Ebadarg[]; /* bad arguments */ | ||
| 14 | |||
| 15 | typedef uvlong Path; | ||
| 16 | typedef struct Styxserver Styxserver; | ||
| 17 | typedef struct Styxops Styxops; | ||
| 18 | typedef struct Styxfile Styxfile; | ||
| 19 | typedef struct Client Client; | ||
| 20 | typedef struct Fid Fid; | ||
| 21 | |||
| 22 | struct Styxserver | ||
| 23 | { | ||
| 24 | Styxops *ops; | ||
| 25 | Path qidgen; | ||
| 26 | int connfd; | ||
| 27 | int needfile; | ||
| 28 | Client *clients; | ||
| 29 | Client *curc; | ||
| 30 | Styxfile *root; | ||
| 31 | Styxfile **ftab; | ||
| 32 | void *priv; /* private */ | ||
| 33 | }; | ||
| 34 | |||
| 35 | struct Client | ||
| 36 | { | ||
| 37 | Styxserver *server; | ||
| 38 | Client *next; | ||
| 39 | int fd; | ||
| 40 | char msg[MSGMAX]; | ||
| 41 | uint nread; /* valid bytes in msg (including nc)*/ | ||
| 42 | int nc; /* bytes consumed from front of msg by convM2S */ | ||
| 43 | char data[MSGMAX]; /* Tread/Rread data */ | ||
| 44 | int state; | ||
| 45 | Fid *fids; | ||
| 46 | char *uname; /* uid */ | ||
| 47 | char *aname; /* attach name */ | ||
| 48 | void *u; | ||
| 49 | }; | ||
| 50 | |||
| 51 | struct Styxops | ||
| 52 | { | ||
| 53 | char *(*newclient)(Client *c); | ||
| 54 | char *(*freeclient)(Client *c); | ||
| 55 | |||
| 56 | char *(*attach)(char *uname, char *aname); | ||
| 57 | char *(*walk)(Qid *qid, char *name); | ||
| 58 | char *(*open)(Qid *qid, int mode); | ||
| 59 | char *(*create)(Qid *qid, char *name, int perm, int mode); | ||
| 60 | char *(*read)(Qid qid, char *buf, ulong *n, vlong offset); | ||
| 61 | char *(*write)(Qid qid, char *buf, ulong *n, vlong offset); | ||
| 62 | char *(*close)(Qid qid, int mode); | ||
| 63 | char *(*remove)(Qid qid); | ||
| 64 | char *(*stat)(Qid qid, Dir *d); | ||
| 65 | char *(*wstat)(Qid qid, Dir *d); | ||
| 66 | }; | ||
| 67 | |||
| 68 | struct Styxfile | ||
| 69 | { | ||
| 70 | Dir d; | ||
| 71 | Styxfile *parent; | ||
| 72 | Styxfile *child; | ||
| 73 | Styxfile *sibling; | ||
| 74 | Styxfile *next; | ||
| 75 | int ref; | ||
| 76 | int open; | ||
| 77 | void *u; | ||
| 78 | }; | ||
| 79 | |||
| 80 | char *styxinit(Styxserver *server, Styxops *ops, char *port, int perm, int needfile); | ||
| 81 | char *styxwait(Styxserver *server); | ||
| 82 | char *styxprocess(Styxserver *server); | ||
| 83 | char *styxend(Styxserver *server); | ||
| 84 | |||
| 85 | Client *styxclient(Styxserver *server); | ||
| 86 | |||
| 87 | Styxfile *styxaddfile(Styxserver *server, Path pqid, Path qid, char *name, int mode, char *owner); | ||
| 88 | Styxfile *styxadddir(Styxserver *server, Path pqid, Path qid, char *name, int mode, char *owner); | ||
| 89 | int styxrmfile(Styxserver *server, Path qid); | ||
| 90 | Styxfile *styxfindfile(Styxserver *server, Path qid); | ||
| 91 | |||
| 92 | int styxperm(Styxfile *file, char *uid, int mode); | ||
| 93 | long styxreadstr(ulong off, char *buf, ulong n, char *str); | ||
| 94 | Qid styxqid(int path, int isdir); | ||
| 95 | void *styxmalloc(int n); | ||
| 96 | void styxfree(void *p); | ||
| 97 | void styxdebug(void); | ||
| 98 | void styxsetowner(char*); | ||