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#include "stdinc.h"
#include "dat.h"
#include "fns.h"
#include <bio.h>
Biobuf bout;
static void
pie(IEntry *ie)
{
Bprint(&bout, "%22lld %V %3d %5d\n",
ie->ia.addr, ie->score, ie->ia.type, ie->ia.size);
}
void
usage(void)
{
fprint(2, "usage: printindex [-B blockcachesize] config [isectname...]\n");
threadexitsall(0);
}
Config conf;
int
shoulddump(char *name, int argc, char **argv)
{
int i;
if(argc == 0)
return 1;
for(i=0; i<argc; i++)
if(strcmp(name, argv[i]) == 0)
return 1;
return 0;
}
void
dumpisect(ISect *is)
{
int j;
uchar *buf;
u32int i;
u64int off;
IBucket ib;
IEntry ie;
buf = emalloc(is->blocksize);
for(i=0; i<is->blocks; i++){
off = is->blockbase+(u64int)is->blocksize*i;
if(readpart(is->part, off, buf, is->blocksize) < 0)
fprint(2, "read %s at 0x%llux: %r\n", is->part->name, off);
else{
unpackibucket(&ib, buf, is->bucketmagic);
for(j=0; j<ib.n; j++){
unpackientry(&ie, &ib.data[j*IEntrySize]);
pie(&ie);
}
}
}
}
void
threadmain(int argc, char *argv[])
{
int i;
Index *ix;
u32int bcmem;
bcmem = 0;
ARGBEGIN{
case 'B':
bcmem = unittoull(ARGF());
break;
default:
usage();
break;
}ARGEND
if(argc < 1)
usage();
fmtinstall('H', encodefmt);
if(initventi(argv[0], &conf) < 0)
sysfatal("can't init venti: %r");
if(bcmem < maxblocksize * (mainindex->narenas + mainindex->nsects * 4 + 16))
bcmem = maxblocksize * (mainindex->narenas + mainindex->nsects * 4 + 16);
if(0) fprint(2, "initialize %d bytes of disk block cache\n", bcmem);
initdcache(bcmem);
ix = mainindex;
Binit(&bout, 1, OWRITE);
for(i=0; i<ix->nsects; i++)
if(shoulddump(ix->sects[i]->name, argc-1, argv+1))
dumpisect(ix->sects[i]);
Bterm(&bout);
threadexitsall(0);
}
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