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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)
{
ATailStats old;
int err, e;
if(verbose && arena->memstats.clumps)
printarena(2, arena);
old = arena->memstats;
if(scan){
arena->memstats.used = 0;
arena->memstats.clumps = 0;
arena->memstats.cclumps = 0;
arena->memstats.uncsize = 0;
}
err = 0;
for(;;){
e = syncarena(arena, 0, 1000, 0, fix);
err |= e;
if(!(e & SyncHeader))
break;
if(verbose && arena->memstats.clumps)
fprint(2, ".");
}
if(verbose && arena->memstats.clumps)
fprint(2, "\n");
err &= ~SyncHeader;
if(arena->memstats.used != old.used
|| arena->memstats.clumps != old.clumps
|| arena->memstats.cclumps != old.cclumps
|| arena->memstats.uncsize != old.uncsize){
fprint(2, "%s: incorrect arena header fields\n", arena->name);
printarena(2, arena);
err |= SyncHeader;
}
if(!err || !fix)
return;
fprint(2, "%s: writing fixed arena header fields\n", arena->name);
arena->diskstats = arena->memstats;
if(wbarena(arena) < 0)
fprint(2, "arena header write failed: %r\n");
flushdcache();
}
void
usage(void)
{
fprint(2, "usage: checkarenas [-afv] file [arenaname...]\n");
threadexitsall(0);
}
int
should(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
threadmain(int argc, char *argv[])
{
ArenaPart *ap;
Part *part;
char *file;
int i, fix, scan;
ventifmtinstall();
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];
argc--;
argv++;
part = initpart(file, (fix ? ORDWR : OREAD)|ODIRECT);
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++)
if(should(ap->arenas[i]->name, argc, argv))
checkarena(ap->arenas[i], scan, fix);
if(verbose > 1)
printstats();
threadexitsall(0);
}
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