dat.h (2131B)
1 typedef struct Ioclust Ioclust; 2 typedef struct Iobuf Iobuf; 3 typedef struct Isofile Isofile; 4 typedef struct Xdata Xdata; 5 typedef struct Xfile Xfile; 6 typedef struct Xfs Xfs; 7 typedef struct Xfsub Xfsub; 8 9 #pragma incomplete Isofile 10 11 enum 12 { 13 Sectorsize = 2048, 14 Maxname = 256, 15 }; 16 17 struct Iobuf 18 { 19 Ioclust* clust; 20 long addr; 21 uchar* iobuf; 22 }; 23 24 struct Ioclust 25 { 26 long addr; /* in sectors; good to 8TB */ 27 Xdata* dev; 28 Ioclust* next; 29 Ioclust* prev; 30 int busy; 31 int nbuf; 32 Iobuf* buf; 33 uchar* iobuf; 34 }; 35 36 struct Xdata 37 { 38 Xdata* next; 39 char* name; /* of underlying file */ 40 Qid qid; 41 short type; 42 short fdev; 43 int ref; /* attach count */ 44 int dev; /* for read/write */ 45 }; 46 47 struct Xfsub 48 { 49 void (*reset)(void); 50 int (*attach)(Xfile*); 51 void (*clone)(Xfile*, Xfile*); 52 void (*walkup)(Xfile*); 53 void (*walk)(Xfile*, char*); 54 void (*open)(Xfile*, int); 55 void (*create)(Xfile*, char*, long, int); 56 long (*readdir)(Xfile*, uchar*, long, long); 57 long (*read)(Xfile*, char*, vlong, long); 58 long (*write)(Xfile*, char*, vlong, long); 59 void (*clunk)(Xfile*); 60 void (*remove)(Xfile*); 61 void (*stat)(Xfile*, Dir*); 62 void (*wstat)(Xfile*, Dir*); 63 }; 64 65 struct Xfs 66 { 67 Xdata* d; /* how to get the bits */ 68 Xfsub* s; /* how to use them */ 69 int ref; 70 int issusp; /* follows system use sharing protocol */ 71 long suspoff; /* if so, offset at which SUSP area begins */ 72 int isrock; /* Rock Ridge format */ 73 int isplan9; /* has Plan 9-specific directory info */ 74 Qid rootqid; 75 Isofile* ptr; /* private data */ 76 }; 77 78 struct Xfile 79 { 80 Xfile* next; /* in fid hash bucket */ 81 Xfs* xf; 82 long fid; 83 ulong flags; 84 Qid qid; 85 int len; /* of private data */ 86 Isofile* ptr; 87 }; 88 89 enum 90 { 91 Asis, 92 Clean, 93 Clunk 94 }; 95 96 enum 97 { 98 Oread = 1, 99 Owrite = 2, 100 Orclose = 4, 101 Omodes = 3, 102 }; 103 104 extern char Enonexist[]; /* file does not exist */ 105 extern char Eperm[]; /* permission denied */ 106 extern char Enofile[]; /* no file system specified */ 107 extern char Eauth[]; /* authentication failed */ 108 109 extern char *srvname; 110 extern char *deffile; 111 extern int chatty; 112 extern jmp_buf err_lab[]; 113 extern int nerr_lab; 114 extern char err_msg[]; 115 116 extern int nojoliet; 117 extern int noplan9; 118 extern int norock;