diff options
Diffstat (limited to 'src/cmd/venti/srv/printindex.c')
-rw-r--r-- | src/cmd/venti/srv/printindex.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/cmd/venti/srv/printindex.c b/src/cmd/venti/srv/printindex.c new file mode 100644 index 00000000..edbcf793 --- /dev/null +++ b/src/cmd/venti/srv/printindex.c @@ -0,0 +1,99 @@ +#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); +} |