#include "stdinc.h"#include "dat.h"#include "fns.h" static	int	verbose;voidusage(void){	fprint(2, "usage: sync [-fv] [-B blockcachesize] config\n");	exits(0);} intmain(int argc, char *argv[]){	u32int bcmem;	int fix; 	fix = 0;	bcmem = 0;	ARGBEGIN{	case 'B':		bcmem = unittoull(ARGF());		break;	case 'f':		fix++;		break;	case 'v':		verbose++;		break;	default:		usage();		break;	}ARGEND 	if(!fix)		readonly = 1; 	if(argc != 1)		usage(); 	vtAttach();	if(!initVenti(argv[0]))		fatal("can't init venti: %R"); 	if(bcmem < maxBlockSize * (mainIndex->narenas + mainIndex->nsects * 4 + 16))		bcmem = maxBlockSize * (mainIndex->narenas + mainIndex->nsects * 4 + 16);	fprint(2, "initialize %d bytes of disk block cache\n", bcmem);	initDCache(bcmem); 	if(verbose)		printIndex(2, mainIndex);	if(!syncIndex(mainIndex, fix))		fatal("failed to sync index=%s: %R\n", mainIndex->name); 	exits(0);	return 0;	/* shut up stupid compiler */}