Subversion Repositories planix.SVN

#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);
}