face: UnixStream{Face,Channel,ChannelFactory} implementation.

refs: #1174

Change-Id: I14d1e357c96a02995355e7970323fe40847580aa
diff --git a/daemon/face/unix-stream-face.hpp b/daemon/face/unix-stream-face.hpp
new file mode 100644
index 0000000..c04bec2
--- /dev/null
+++ b/daemon/face/unix-stream-face.hpp
@@ -0,0 +1,37 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (C) 2014 Named Data Networking Project
+ * See COPYING for copyright and distribution information.
+ */
+
+#ifndef NFD_FACE_UNIX_STREAM_FACE_HPP
+#define NFD_FACE_UNIX_STREAM_FACE_HPP
+
+#include "stream-face.hpp"
+
+namespace nfd
+{
+
+/**
+ * \brief Implementation of Face abstraction that uses stream-oriented
+ *        Unix domain sockets as underlying transport mechanism
+ */
+class UnixStreamFace : public StreamFace<boost::asio::local::stream_protocol>
+{
+public:
+  typedef boost::asio::local::stream_protocol protocol;
+
+  explicit
+  UnixStreamFace(const shared_ptr<protocol::socket>& socket);
+
+  /** \brief Get whether face is connected to a local app
+   *
+   *  Always true for a UnixStreamFace.
+   */
+  virtual bool
+  isLocal() const;
+};
+
+} // namespace nfd
+
+#endif // NFD_FACE_UNIX_STREAM_FACE_HPP