refactor slightly

2 files changed, 52 insertions, 49 deletions

diff --git a/server/main.ha b/server/main.ha
index f1eec0a..4476221 100644
--- a/server/main.ha
+++ b/server/main.ha
@@ -11,55 +11,6 @@ def PORT: u16 = 41460;
 
 type conn = net::socket;
 
-type packet = []u8;
-def PCKSZ: size = 4;
-
-type packet_reader = struct {
-	buf: [256]u8,
-	good: []u8,
-};
-
-fn packet_reader_new() packet_reader = {
-	let pr = packet_reader {
-		buf = [0...],
-		...
-	};
-	pr.good = pr.buf[0..0];
-	return pr;
-
-};
-
-// call when input is ready. could block otherwise
-fn packet_reader_read(pr: *packet_reader, sock: net::socket) (void | io::error | io::EOF) = {
-	const remaining_amt = len(pr.good);
-	const read_pos = if (remaining_amt > 0) {
-		// still some unconsumed content in the buffer
-		// move unconsumed stuff to start of buffer
-		fmt::printfln("moving {} remaining bytes",remaining_amt)!;
-		pr.buf[0..remaining_amt] = pr.good;
-		yield remaining_amt;
-	} else 0z;
-	const nread = match(io::read(sock, pr.buf[read_pos..])?) {
-		case io::EOF => return io::EOF;
-		case let n: size => yield n;
-	};
-	fmt::printfln("read {} bytes",nread)!;
-	const total_amt = read_pos + nread;
-	pr.good = pr.buf[0..total_amt];
-	fmt::printfln("now {} bytes in buffer",total_amt)!;
-};
-
-
-fn packet_reader_next(pr: *packet_reader) (packet | done) = {
-	// either parse a full packet out of the front of good,
-	// move good along that many bytes,
-	// and return the packet,
-	// or, ascertain there is no full packet, and return done
-	if (len(pr.good) < PCKSZ) return done;
-	const packet_bytes = pr.good[..PCKSZ];
-	pr.good = pr.good[PCKSZ..];
-	return packet_bytes;
-};
 
 export fn main() void = {
 	const listener = tcp::listen(ip::ANY_V4, PORT)!;
diff --git a/server/packet.ha b/server/packet.ha
new file mode 100644
index 0000000..b12d121
--- /dev/null
+++ b/server/packet.ha
@@ -0,0 +1,52 @@
+use io;
+use fmt;
+
+type packet = []u8;
+def PCKSZ: size = 4;
+
+type packet_reader = struct {
+	buf: [256]u8,
+	good: []u8,
+};
+
+fn packet_reader_new() packet_reader = {
+	let pr = packet_reader {
+		buf = [0...],
+		...
+	};
+	pr.good = pr.buf[0..0];
+	return pr;
+
+};
+
+// call when input is ready. could block otherwise
+fn packet_reader_read(pr: *packet_reader, sock: io::handle) (void | io::error | io::EOF) = {
+	const remaining_amt = len(pr.good);
+	const read_pos = if (remaining_amt > 0) {
+		// still some unconsumed content in the buffer
+		// move unconsumed stuff to start of buffer
+		fmt::printfln("moving {} remaining bytes",remaining_amt)!;
+		pr.buf[0..remaining_amt] = pr.good;
+		yield remaining_amt;
+	} else 0z;
+	const nread = match(io::read(sock, pr.buf[read_pos..])?) {
+		case io::EOF => return io::EOF;
+		case let n: size => yield n;
+	};
+	fmt::printfln("read {} bytes",nread)!;
+	const total_amt = read_pos + nread;
+	pr.good = pr.buf[0..total_amt];
+	fmt::printfln("now {} bytes in buffer",total_amt)!;
+};
+
+
+fn packet_reader_next(pr: *packet_reader) (packet | done) = {
+	// either parse a full packet out of the front of good,
+	// move good along that many bytes,
+	// and return the packet,
+	// or, ascertain there is no full packet, and return done
+	if (len(pr.good) < PCKSZ) return done;
+	const packet_bytes = pr.good[..PCKSZ];
+	pr.good = pr.good[PCKSZ..];
+	return packet_bytes;
+};