Refactored package structure.

types/types.go

@@ -0,0 +1,20 @@
+package types
+
+import (
+	"net/http"
+	"time"
+)
+
+type Dialer interface {
+	Dial(urlStr string, requestHeader http.Header) (Socket, *http.Response, error)
+}
+
+type Socket interface {
+	WriteMessage(messageType int, data []byte) error
+	ReadMessage() (messageType int, p []byte, err error)
+	Close() error
+
+	SetReadDeadline(t time.Time) error
+	SetWriteDeadline(t time.Time) error
+	SetCloseHandler(h func(code int, text string) error)
+}