Initial stab at Venti.

src/cmd/venti/dump.c

@@ -0,0 +1,47 @@
+#include "stdinc.h"
+#include "dat.h"
+#include "fns.h"
+
+void
+printindex(int fd, Index *ix)
+{
+	int i;
+
+	fprint(fd, "index=%s version=%d blocksize=%d tabsize=%d\n",
+		ix->name, ix->version, ix->blocksize, ix->tabsize);
+	fprint(fd, "\tbuckets=%d div=%d\n", ix->buckets, ix->div);
+	for(i = 0; i < ix->nsects; i++)
+		fprint(fd, "\tsect=%s for buckets [%lld,%lld)\n", ix->smap[i].name, ix->smap[i].start, ix->smap[i].stop);
+	for(i = 0; i < ix->narenas; i++)
+		fprint(fd, "\tarena=%s at [%lld,%lld)\n", ix->amap[i].name, ix->amap[i].start, ix->amap[i].stop);
+}
+
+void
+printarenapart(int fd, ArenaPart *ap)
+{
+	int i;
+
+	fprint(fd, "arena partition=%s\n\tversion=%d blocksize=%d arenas=%d\n\tsetbase=%d setsize=%d\n",
+		ap->part->name, ap->version, ap->blocksize, ap->narenas, ap->tabbase, ap->tabsize);
+	for(i = 0; i < ap->narenas; i++)
+		fprint(fd, "\tarena=%s at [%lld,%lld)\n", ap->map[i].name, ap->map[i].start, ap->map[i].stop);
+}
+
+void
+printarena(int fd, Arena *arena)
+{
+	fprint(fd, "arena='%s' [%lld,%lld)\n\tversion=%d created=%d modified=%d",
+		arena->name, arena->base, arena->base + arena->size + 2 * arena->blocksize,
+		arena->version, arena->ctime, arena->wtime);
+	if(arena->sealed)
+		fprint(2, " sealed\n");
+	else
+		fprint(2, "\n");
+	if(scorecmp(zeroscore, arena->score) != 0)
+		fprint(2, "\tscore=%V\n", arena->score);
+
+	fprint(fd, "\tclumps=%,d compressed clumps=%,d data=%,lld compressed data=%,lld disk storage=%,lld\n",
+		arena->clumps, arena->cclumps, arena->uncsize,
+		arena->used - arena->clumps * ClumpSize,
+		arena->used + arena->clumps * ClumpInfoSize);
+}