use fmt;
use os;
use io;
use fs;
use errors;
use drawing::{pos};

// type chunk = struct {
// 	fd: io::file,
// 	d: []u32,
// };

// def CHUNKSIZE: size = 512;
// def CHUNK_LENGTH: size = CHUNKSIZE*CHUNKSIZE*size(u32);

// fn open_chunk_file(chunkpos: pos) (chunk | fs::error) = {
// 	const path = fmt::asprintf("c.{}.{}.dat", chunkpos.0, chunkpos.1);
// 	defer free(path);
// 	const fd = fs::create_file(os::cwd, path,
// 		fs::mode::USER_RW | fs::mode::GROUP_RW,
// 		fs::flag::RDWR)?;
// 	io::trunc(fd, CHUNK_LENGTH)?;
// 	const dp = io::mmap(null, CHUNK_LENGTH,
// 		io::prot::READ | io::prot::WRITE,
// 		io::mflag::SHARED,
// 		fd, 0)?;
// 	const d = (dp: *[*]u32)[..CHUNKSIZE*CHUNKSIZE];
// 	return chunk { fd = fd, d = d };
// };

export fn main() void = {
	// match (open_chunk_file((-3,12))) {
	// case let e: fs::error =>
	// 	fmt::fatal(fs::strerror(e));
	// case let ch: chunk =>
	// 	ch.d[0] = 0x12345678;
	// 	ch.d[CHUNKSIZE*CHUNKSIZE - 1]=0xdeadbeef;
	// };

	const t = test2 { a=4, b=5 };
	thethe(&t);

};