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#include "stdinc.h"
#include "dat.h"
#include "fns.h"
uchar buf[64*1024];
void
usage(void)
{
fprint(2, "usage: printarenapart arenafile [offset]\n");
threadexitsall("usage");
}
static void
rdarena(Arena *arena, u64int offset)
{
u64int a, aa, e;
u32int magic;
Clump cl;
uchar score[VtScoreSize];
ZBlock *lump;
printarena(2, arena);
a = arena->base;
e = arena->base + arena->size;
if(offset != ~(u64int)0) {
if(offset >= e-a)
sysfatal("bad offset %llud >= %llud",
offset, e-a);
aa = offset;
} else
aa = 0;
for(; aa < e; aa += ClumpSize+cl.info.size) {
magic = clumpmagic(arena, aa);
if(magic == ClumpFreeMagic)
break;
if(magic != arena->clumpmagic) {
fprint(2, "illegal clump magic number %#8.8ux offset %llud\n",
magic, aa);
break;
}
lump = loadclump(arena, aa, 0, &cl, score, 0);
if(lump == nil) {
fprint(2, "clump %llud failed to read: %r\n", aa);
break;
}
if(cl.info.type != VtCorruptType) {
scoremem(score, lump->data, cl.info.uncsize);
if(scorecmp(cl.info.score, score) != 0) {
fprint(2, "clump %llud has mismatched score\n", aa);
break;
}
if(vttypevalid(cl.info.type) < 0) {
fprint(2, "clump %llud has bad type %d\n", aa, cl.info.type);
break;
}
}
print("%22llud %V %3d %5d\n", aa, score, cl.info.type, cl.info.uncsize);
freezblock(lump);
}
print("end offset %llud\n", aa);
}
void
threadmain(int argc, char *argv[])
{
char *file, *p, *name;
char *table;
u64int offset;
Part *part;
ArenaPart ap;
ArenaHead head;
Arena tail;
char ct[40], mt[40];
readonly = 1; /* for part.c */
ARGBEGIN{
default:
usage();
break;
}ARGEND
switch(argc) {
default:
usage();
case 1:
file = argv[0];
}
ventifmtinstall();
statsinit();
part = initpart(file, OREAD|ODIRECT);
if(part == nil)
sysfatal("can't open file %s: %r", file);
if(readpart(part, PartBlank, buf, sizeof buf) < 0)
sysfatal("can't read file %s: %r", file);
if(unpackarenapart(&ap, buf) < 0)
sysfatal("corrupted arena part header: %r");
print("# arena part version=%d blocksize=%d arenabase=%d\n",
ap.version, ap.blocksize, ap.arenabase);
ap.tabbase = (PartBlank+HeadSize+ap.blocksize-1)&~(ap.blocksize-1);
ap.tabsize = ap.arenabase - ap.tabbase;
table = malloc(ap.tabsize+1);
if(readpart(part, ap.tabbase, (uchar*)table, ap.tabsize) < 0)
sysfatal("read %s: %r", file);
table[ap.tabsize] = 0;
partblocksize(part, ap.blocksize);
initdcache(8 * MaxDiskBlock);
for(p=table; p && *p; p=strchr(p, '\n')){
if(*p == '\n')
p++;
name = p;
p = strpbrk(p, " \t");
if(p == nil){
fprint(2, "bad line: %s\n", name);
break;
}
offset = strtoull(p, nil, 0);
if(readpart(part, offset, buf, sizeof buf) < 0){
fprint(2, "%s: read %s: %r\n", argv0, file);
continue;
}
if(unpackarenahead(&head, buf) < 0){
fprint(2, "%s: unpackarenahead: %r\n", argv0);
continue;
}
if(readpart(part, offset+head.size-head.blocksize, buf, head.blocksize) < 0){
fprint(2, "%s: read %s: %r\n", argv0, file);
continue;
}
if(unpackarena(&tail, buf) < 0){
fprint(2, "%s: unpackarena: %r\n", argv0);
continue;
}
print("arena %s %lld clumps=%,d cclumps=%,d used=%,lld uncsize=%,lld%s\n",
tail.name, offset,
tail.diskstats.clumps, tail.diskstats.cclumps,
tail.diskstats.used, tail.diskstats.uncsize,
tail.diskstats.sealed ? " sealed" : "");
strcpy(ct, ctime(tail.ctime));
ct[28] = 0;
strcpy(mt, ctime(tail.wtime));
mt[28] = 0;
print("\tctime=%s\n\tmtime=%s\n", ct, mt);
}
threadexitsall(0);
}
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