1 #include <u.h> 2 #include <libc.h> 3 #include <venti.h> 4 5 enum { 6 OVtErrType, /* illegal */ 7 8 OVtRootType, 9 OVtDirType, 10 OVtPointerType0, 11 OVtPointerType1, 12 OVtPointerType2, 13 OVtPointerType3, 14 OVtPointerType4, 15 OVtPointerType5, 16 OVtPointerType6, 17 OVtPointerType7, /* not used */ 18 OVtPointerType8, /* not used */ 19 OVtPointerType9, /* not used */ 20 OVtDataType, 21 22 OVtMaxType 23 }; 24 25 26 uint todisk[] = { 27 OVtDataType, 28 OVtPointerType0, 29 OVtPointerType1, 30 OVtPointerType2, 31 OVtPointerType3, 32 OVtPointerType4, 33 OVtPointerType5, 34 OVtPointerType6, 35 OVtDirType, 36 OVtPointerType0, 37 OVtPointerType1, 38 OVtPointerType2, 39 OVtPointerType3, 40 OVtPointerType4, 41 OVtPointerType5, 42 OVtPointerType6, 43 OVtRootType, 44 }; 45 46 uint fromdisk[] = { 47 VtCorruptType, 48 VtRootType, 49 VtDirType, 50 VtDirType+1, 51 VtDirType+2, 52 VtDirType+3, 53 VtDirType+4, 54 VtDirType+5, 55 VtDirType+6, 56 VtDirType+7, 57 VtCorruptType, 58 VtCorruptType, 59 VtCorruptType, 60 VtDataType, 61 }; 62 63 uint 64 vttodisktype(uint n) 65 { 66 if(n >= nelem(todisk)) 67 return VtCorruptType; 68 return todisk[n]; 69 } 70 71 uint 72 vtfromdisktype(uint n) 73 { 74 if(n >= nelem(fromdisk)) 75 return VtCorruptType; 76 return fromdisk[n]; 77 } 78 79