face: Refactor Face as LinkService+Transport
LpFace: new Face implementation
LpFaceWrapper: allows new Face system to work with old Face system
Eventually, LpFace will be renamed to Face and LpFaceWrapper will be removed.
refs #3088 #3179
Change-Id: Ia4ad7c84631e65b444d4f24e1d7593392927c8db
diff --git a/daemon/face/generic-link-service.cpp b/daemon/face/generic-link-service.cpp
new file mode 100644
index 0000000..79010e6
--- /dev/null
+++ b/daemon/face/generic-link-service.cpp
@@ -0,0 +1,93 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "generic-link-service.hpp"
+
+namespace nfd {
+namespace face {
+
+NFD_LOG_INIT("GenericLinkService");
+
+void
+GenericLinkService::doSendInterest(const Interest& interest)
+{
+ lp::Packet lpPacket(interest.wireEncode());
+ Transport::Packet packet;
+ packet.packet = lpPacket.wireEncode();
+ sendPacket(std::move(packet));
+}
+
+void
+GenericLinkService::doSendData(const Data& data)
+{
+ lp::Packet lpPacket(data.wireEncode());
+ Transport::Packet packet;
+ packet.packet = lpPacket.wireEncode();
+ sendPacket(std::move(packet));
+}
+
+void
+GenericLinkService::doSendNack(const lp::Nack& nack)
+{
+ lp::Packet lpPacket(nack.getInterest().wireEncode());
+ lpPacket.add<lp::NackField>(nack.getHeader());
+ Transport::Packet packet;
+ packet.packet = lpPacket.wireEncode();
+ sendPacket(std::move(packet));
+}
+
+void
+GenericLinkService::doReceivePacket(Transport::Packet&& packet)
+{
+ lp::Packet lpPacket(packet.packet);
+ ndn::Buffer::const_iterator fragBegin, fragEnd;
+ std::tie(fragBegin, fragEnd) = lpPacket.get<lp::FragmentField>();
+ Block netPacket(&*fragBegin, std::distance(fragBegin, fragEnd));
+
+ // Forwarding expects Interest and Data to be created with make_shared,
+ // but has no such requirement on Nack.
+ switch (netPacket.type()) {
+ case tlv::Interest: {
+ auto interest = make_shared<Interest>(netPacket);
+ if (lpPacket.has<lp::NackField>()) {
+ lp::Nack nack(std::move(*interest));
+ nack.setHeader(lpPacket.get<lp::NackField>());
+ receiveNack(nack);
+ }
+ else {
+ receiveInterest(*interest);
+ }
+ break;
+ }
+ case tlv::Data: {
+ auto data = make_shared<Data>(netPacket);
+ receiveData(*data);
+ break;
+ }
+ }
+}
+
+} // namespace face
+} // namespace nfd