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#include "stdinc.h"
#include "dat.h"
#include "fns.h"
static int verbose;
static void
checkarena(Arena *arena, int scan, int fix)
{
Arena old;
int err, e;
if(verbose && arena->clumps)
printarena(2, arena);
old = *arena;
if(scan){
arena->used = 0;
arena->clumps = 0;
arena->cclumps = 0;
arena->uncsize = 0;
}
err = 0;
for(;;){
e = syncarena(arena, 1000, 0, fix);
err |= e;
if(!(e & SyncHeader))
break;
if(verbose && arena->clumps)
fprint(2, ".");
}
if(verbose && arena->clumps)
fprint(2, "\n");
err &= ~SyncHeader;
if(arena->used != old.used
|| arena->clumps != old.clumps
|| arena->cclumps != old.cclumps
|| arena->uncsize != old.uncsize){
fprint(2, "incorrect arena header fields\n");
printarena(2, arena);
err |= SyncHeader;
}
if(!err || !fix)
return;
fprint(2, "writing fixed arena header fields\n");
if(wbarena(arena) < 0)
fprint(2, "arena header write failed: %r\n");
}
void
usage(void)
{
fprint(2, "usage: checkarenas [-afv] file\n");
threadexitsall(0);
}
void
threadmain(int argc, char *argv[])
{
ArenaPart *ap;
Part *part;
char *file;
int i, fix, scan;
fmtinstall('V', vtscorefmt);
statsinit();
fix = 0;
scan = 0;
ARGBEGIN{
case 'f':
fix++;
break;
case 'a':
scan = 1;
break;
case 'v':
verbose++;
break;
default:
usage();
break;
}ARGEND
if(!fix)
readonly = 1;
if(argc != 1)
usage();
file = argv[0];
part = initpart(file, 0);
if(part == nil)
sysfatal("can't open partition %s: %r", file);
ap = initarenapart(part);
if(ap == nil)
sysfatal("can't initialize arena partition in %s: %r", file);
if(verbose > 1){
printarenapart(2, ap);
fprint(2, "\n");
}
initdcache(8 * MaxDiskBlock);
for(i = 0; i < ap->narenas; i++)
checkarena(ap->arenas[i], scan, fix);
if(verbose > 1)
printstats();
threadexitsall(0);
}
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