1 #include "stdinc.h"
2 #include "dat.h"
3 #include "fns.h"
4
5 static int
syncarenaindex(Arena * arena,u64int a0)6 syncarenaindex(Arena *arena, u64int a0)
7 {
8 int ok;
9 u32int clump;
10 u64int a;
11 ClumpInfo ci;
12 IAddr ia;
13 AState as;
14
15 if(arena->diskstats.clumps == arena->memstats.clumps)
16 return 0;
17
18 memset(&as, 0, sizeof as);
19 as.arena = arena;
20 as.stats = arena->diskstats;
21
22 ok = 0;
23 a = a0 + arena->diskstats.used;
24 for(clump=arena->diskstats.clumps; clump < arena->memstats.clumps; clump++){
25 if(readclumpinfo(arena, clump, &ci) < 0){
26 fprint(2, "%s: clump %d: cannot read clumpinfo\n",
27 arena->name, clump);
28 ok = -1;
29 break;
30 }
31
32 ia.type = ci.type;
33 ia.size = ci.uncsize;
34 ia.addr = a;
35 ia.blocks = (ClumpSize + ci.size + (1 << ABlockLog) - 1) >> ABlockLog;
36 a += ClumpSize + ci.size;
37
38 as.stats.used += ClumpSize + ci.size;
39 as.stats.uncsize += ia.size;
40 as.stats.clumps++;
41 if(ci.uncsize > ci.size)
42 as.stats.cclumps++;
43 as.aa = a;
44 insertscore(ci.score, &ia, IEDirty, &as);
45 }
46 flushdcache();
47 return ok;
48 }
49
50 int
syncindex(Index * ix)51 syncindex(Index *ix)
52 {
53 Arena *arena;
54 int i, e, e1, ok;
55
56 ok = 0;
57 for(i = 0; i < ix->narenas; i++){
58 trace(TraceProc, "syncindex start %d", i);
59 arena = ix->arenas[i];
60 e = syncarena(arena, TWID32, 1, 1);
61 e1 = e;
62 e1 &= ~(SyncHeader|SyncCIZero|SyncCIErr);
63 if(e & SyncHeader)
64 fprint(2, "arena %s: header is out-of-date\n", arena->name);
65 if(e1){
66 fprint(2, "arena %s: %x\n", arena->name, e1);
67 ok = -1;
68 continue;
69 }
70 flushdcache();
71
72 if(arena->memstats.clumps == arena->diskstats.clumps)
73 continue;
74
75 fprint(2, "%T %s: indexing %d clumps...\n",
76 arena->name,
77 arena->memstats.clumps - arena->diskstats.clumps);
78
79 if(syncarenaindex(arena, ix->amap[i].start) < 0){
80 fprint(2, "arena %s: syncarenaindex: %r\n", arena->name);
81 ok = -1;
82 continue;
83 }
84 if(wbarena(arena) < 0){
85 fprint(2, "arena %s: wbarena: %r\n", arena->name);
86 ok = -1;
87 continue;
88 }
89 flushdcache();
90 delaykickicache();
91 }
92 return ok;
93 }
94