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