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
vttodisktype(uint n)64 vttodisktype(uint n)
65 {
66 if(n >= nelem(todisk))
67 return VtCorruptType;
68 return todisk[n];
69 }
70
71 uint
vtfromdisktype(uint n)72 vtfromdisktype(uint n)
73 {
74 if(n >= nelem(fromdisk))
75 return VtCorruptType;
76 return fromdisk[n];
77 }
78
79