#include <u.h>
#include <libc.h>

#include "fs.h"

int fd;

static void
superinit(void)
{
	SuperBlock super;

	memset(&super, 0, sizeof(super));

	strcpy(super.label, "TEST FS");
	super.magic = SUPERMAGIC;

	super.block_size = 4096;
	super.block_shift = 12;

	super.log_start = 1;
	super.log_end = 100;

	if(putsuper(fd, &super) < 0)
		sysfatal("putsuper: %r");
}

static void
supercheck(void)
{
	SuperBlock super;

	if(getsuper(fd, &super) < 0)
		sysfatal("getsuper: %r");

	if(checksuper(&super) < 0)
		sysfatal("checksuper: %r");

	print("super size  %d\n", sizeof(super));

	print("label       %s\n", super.label);
	print("magic       %08lluX\n", super.magic);

	print("block_size  %ud\n", super.block_size);
	print("block_shift %ud\n", super.block_shift);

	print("log_start   %llud\n", super.log_start);
	print("log_end     %llud\n", super.log_end);
}

void
main(void)
{
	char *tmp;

	tmp = mktemp("/tmp/libfs-img.XXXX");
	fd = create(tmp, ORDWR/*|ORCLOSE*/, 0600);
	if(fd < 0)
		sysfatal("create %s: %r", tmp);

	superinit();
	supercheck();

	close(fd);

	exits(nil);
}