mirror of
https://github.com/9fans/plan9port.git
synced 2025-01-15 11:20:03 +00:00
135 lines
2.2 KiB
C
135 lines
2.2 KiB
C
#include "stdinc.h"
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#include "dat.h"
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#include "fns.h"
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static int verbose;
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static void
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checkarena(Arena *arena, int scan, int fix)
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{
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ATailStats old;
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int err, e;
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if(verbose && arena->memstats.clumps)
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printarena(2, arena);
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old = arena->memstats;
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if(scan){
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arena->memstats.used = 0;
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arena->memstats.clumps = 0;
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arena->memstats.cclumps = 0;
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arena->memstats.uncsize = 0;
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}
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err = 0;
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for(;;){
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e = syncarena(arena, 0, 1000, 0, fix);
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err |= e;
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if(!(e & SyncHeader))
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break;
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if(verbose && arena->memstats.clumps)
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fprint(2, ".");
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}
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if(verbose && arena->memstats.clumps)
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fprint(2, "\n");
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err &= ~SyncHeader;
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if(arena->memstats.used != old.used
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|| arena->memstats.clumps != old.clumps
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|| arena->memstats.cclumps != old.cclumps
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|| arena->memstats.uncsize != old.uncsize){
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fprint(2, "%s: incorrect arena header fields\n", arena->name);
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printarena(2, arena);
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err |= SyncHeader;
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}
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if(!err || !fix)
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return;
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fprint(2, "%s: writing fixed arena header fields\n", arena->name);
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arena->diskstats = arena->memstats;
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if(wbarena(arena) < 0)
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fprint(2, "arena header write failed: %r\n");
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flushdcache();
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}
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void
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usage(void)
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{
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fprint(2, "usage: checkarenas [-afv] file [arenaname...]\n");
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threadexitsall(0);
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}
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int
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should(char *name, int argc, char **argv)
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{
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int i;
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if(argc == 0)
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return 1;
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for(i=0; i<argc; i++)
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if(strcmp(name, argv[i]) == 0)
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return 1;
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return 0;
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}
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void
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threadmain(int argc, char *argv[])
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{
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ArenaPart *ap;
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Part *part;
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char *file;
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int i, fix, scan;
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ventifmtinstall();
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statsinit();
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fix = 0;
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scan = 0;
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ARGBEGIN{
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case 'f':
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fix++;
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break;
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case 'a':
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scan = 1;
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break;
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case 'v':
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verbose++;
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break;
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default:
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usage();
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break;
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}ARGEND
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if(!fix)
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readonly = 1;
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if(argc < 1)
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usage();
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file = argv[0];
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part = initpart(file, ORDWR|ODIRECT);
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if(part == nil)
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sysfatal("can't open partition %s: %r", file);
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ap = initarenapart(part);
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if(ap == nil)
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sysfatal("can't initialize arena partition in %s: %r", file);
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if(verbose > 1){
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printarenapart(2, ap);
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fprint(2, "\n");
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}
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initdcache(8 * MaxDiskBlock);
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for(i = 0; i < ap->narenas; i++)
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if(should(ap->arenas[i]->name, argc, argv))
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checkarena(ap->arenas[i], scan, fix);
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if(verbose > 1)
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printstats();
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threadexitsall(0);
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}
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