Commit of mostly working code.

hub.go

@@ -0,0 +1,29 @@
+package main
+
+import "github.com/gorilla/websocket"
+
+type Hub struct {
+	clients map[*Client]bool
+}
+
+func HubNew() *Hub {
+	return &Hub{
+		clients: make(map[*Client]bool),
+	}
+}
+
+func (h *Hub) registerClient(client *Client) {
+	h.clients[client] = true
+}
+
+func (h *Hub) unregisterClient(client *Client) {
+	if _, ok := h.clients[client]; ok {
+		delete(h.clients, client)
+	}
+}
+
+func (h *Hub) sendClient(data []byte) {
+	for client := range h.clients {
+		client.conn.WriteMessage(websocket.TextMessage, data)
+	}
+}