Yanbiao Li
32dab97321
Feasibility of transport persistency change can be checked with Transport::canChangePersistencyTo before executing the actual change. This enables management to verify persistency and other parameters in a faces/update command before applying the updates. Change-Id: Ia283f0daf678f47aad7b78b7e06dee4827f57cab refs: #3232
131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (c) 2014-2017, Regents of the University of California,
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* Arizona Board of Regents,
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* Colorado State University,
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* University Pierre & Marie Curie, Sorbonne University,
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* Washington University in St. Louis,
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* Beijing Institute of Technology,
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* The University of Memphis.
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*
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* This file is part of NFD (Named Data Networking Forwarding Daemon).
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* See AUTHORS.md for complete list of NFD authors and contributors.
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*
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* NFD is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "internal-transport.hpp"
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#include "core/global-io.hpp"
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namespace nfd {
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namespace face {
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NFD_LOG_INCLASS_DEFINE(InternalForwarderTransport, "InternalForwarderTransport");
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InternalForwarderTransport::InternalForwarderTransport(
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const FaceUri& localUri, const FaceUri& remoteUri,
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ndn::nfd::FaceScope scope, ndn::nfd::LinkType linkType)
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{
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this->setLocalUri(localUri);
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this->setRemoteUri(remoteUri);
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this->setScope(scope);
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this->setPersistency(ndn::nfd::FACE_PERSISTENCY_PERMANENT);
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this->setLinkType(linkType);
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this->setMtu(MTU_UNLIMITED);
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NFD_LOG_FACE_INFO("Creating transport");
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}
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void
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InternalForwarderTransport::receiveFromLink(const Block& packet)
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{
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NFD_LOG_FACE_TRACE(__func__);
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Packet p;
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p.packet = packet;
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this->receive(std::move(p));
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}
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void
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InternalForwarderTransport::doSend(Packet&& packet)
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{
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NFD_LOG_FACE_TRACE(__func__);
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this->emitSignal(afterSend, packet.packet);
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}
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void
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InternalForwarderTransport::doClose()
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{
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NFD_LOG_FACE_TRACE(__func__);
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this->setState(TransportState::CLOSED);
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}
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NFD_LOG_INCLASS_DEFINE(InternalClientTransport, "InternalClientTransport");
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static void
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asyncReceive(InternalTransportBase* recipient, const Block& packet)
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{
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getGlobalIoService().post([packet, recipient] {
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recipient->receiveFromLink(packet);
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});
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}
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void
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InternalClientTransport::connectToForwarder(InternalForwarderTransport* forwarderTransport)
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{
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NFD_LOG_DEBUG(__func__ << " " << forwarderTransport);
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m_fwToClientTransmitConn.disconnect();
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m_clientToFwTransmitConn.disconnect();
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m_fwTransportStateConn.disconnect();
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if (forwarderTransport != nullptr) {
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m_fwToClientTransmitConn = forwarderTransport->afterSend.connect(bind(&asyncReceive, this, _1));
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m_clientToFwTransmitConn = this->afterSend.connect(bind(&asyncReceive, forwarderTransport, _1));
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m_fwTransportStateConn = forwarderTransport->afterStateChange.connect(
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[this] (TransportState oldState, TransportState newState) {
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if (newState == TransportState::CLOSED) {
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this->connectToForwarder(nullptr);
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}
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});
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}
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}
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void
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InternalClientTransport::receiveFromLink(const Block& packet)
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{
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if (m_receiveCallback) {
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m_receiveCallback(packet);
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}
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}
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void
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InternalClientTransport::send(const Block& wire)
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{
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this->emitSignal(afterSend, wire);
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}
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void
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InternalClientTransport::send(const Block& header, const Block& payload)
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{
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ndn::EncodingBuffer encoder(header.size() + payload.size(), header.size() + payload.size());
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encoder.appendByteArray(header.wire(), header.size());
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encoder.appendByteArray(payload.wire(), payload.size());
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this->send(encoder.block());
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}
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} // namespace face
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} // namespace nfd
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