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1 #include <u.h>2 #include <libc.h>3 #include <venti.h>5 enum {6 OVtErrType, /* illegal */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,22 OVtMaxType23 };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 };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 };63 uint64 vttodisktype(uint n)65 {66 if(n >= nelem(todisk))67 return VtCorruptType;68 return todisk[n];69 }71 uint72 vtfromdisktype(uint n)73 {74 if(n >= nelem(fromdisk))75 return VtCorruptType;76 return fromdisk[n];77 }