6 writebucket(Index *ix, u32int buck, IBucket *ib, ZBlock *b)
10 is = findibucket(ix, buck, &buck);
16 packibucket(ib, b->data);
17 return writepart(is->part, is->blockbase + ((u64int)buck << is->blocklog), b->data, is->blocksize);
21 buildindex(Index *ix, Part *part, u64int off, u64int clumps, int zero)
30 //ZZZ make buffer size configurable
31 b = alloczblock(ix->blocksize, 0);
32 z = alloczblock(ix->blocksize, 1);
33 ies = initiestream(part, off, clumps, 64*1024);
34 if(b == nil || z == nil || ies == nil){
41 ib.data = b->data + IBucketSize;
42 zib.data = z->data + IBucketSize;
46 buck = buildbucket(ix, ies, &ib);
49 for(; next != buck; next++){
50 if(next == ix->buckets){
52 fprint(2, "bucket out of range\n");
57 if(writebucket(ix, next, &zib, z) < 0){
58 fprint(2, "can't write zero bucket to buck=%d: %r", next);
63 if(buck >= ix->buckets){
66 fprint(2, "bucket out of range\n");
70 if(writebucket(ix, buck, &ib, b) < 0){
71 fprint(2, "bad bucket found=%lld: %r\n", found);
77 fprint(2, "constructed index with %lld entries\n", found);
87 fprint(2, "usage: buildindex [-Z] [-B blockcachesize] config tmppart\n");
92 threadmain(int argc, char *argv[])
103 bcmem = unittoull(ARGF());
116 if(initventi(argv[0]) < 0)
117 sysfatal("can't init venti: %r");
119 if(bcmem < maxblocksize * (mainindex->narenas + mainindex->nsects * 4 + 16))
120 bcmem = maxblocksize * (mainindex->narenas + mainindex->nsects * 4 + 16);
121 fprint(2, "initialize %d bytes of disk block cache\n", bcmem);
124 fprint(2, "building a new index %s using %s for temporary storage\n", mainindex->name, argv[1]);
126 part = initpart(argv[1], 1);
128 sysfatal("can't initialize temporary partition: %r");
130 clumps = sortrawientries(mainindex, part, &base);
132 sysfatal("can't build sorted index: %r");
133 fprint(2, "found and sorted index entries for clumps=%lld at %lld\n", clumps, base);
135 if(buildindex(mainindex, part, base, clumps, zero) < 0)
136 sysfatal("can't build new index: %r");