116 lines
3.5 KiB
C++
116 lines
3.5 KiB
C++
/* -*- Mode: C32++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2012 University of California, Los Angeles
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* 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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
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* Chaoyi Bian <bcy@pku.edu.cn>
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* Alexander Afanasyev <alexander.afanasyev@ucla.edu>
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*/
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#include "sync-app-socket.h"
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using namespace std;
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using namespace boost;
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namespace Sync
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{
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SyncAppSocket::SyncAppSocket (const string &syncPrefix, NewDataCallback dataCallback, RemoveCallback rmCallback )
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: m_newDataCallback(dataCallback)
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, m_ccnxHandle (new CcnxWrapper())
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, m_syncLogic (syncPrefix,
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bind(&SyncAppSocket::passCallback, this, _1),
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rmCallback)
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{
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}
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SyncAppSocket::~SyncAppSocket()
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{
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}
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std::string
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SyncAppSocket::GetLocalPrefix()
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{
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// this handle is supposed to be short lived
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CcnxWrapperPtr handle( new CcnxWrapper());
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return handle->getLocalPrefix();
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}
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bool
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SyncAppSocket::publishString (const string &prefix, uint32_t session, const string &dataBuffer, int freshness)
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{
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uint32_t sequence = getNextSeq(prefix, session);
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ostringstream contentNameWithSeqno;
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contentNameWithSeqno << prefix << "/" << session << "/" << sequence;
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m_ccnxHandle->publishStringData (contentNameWithSeqno.str (), dataBuffer, freshness);
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SeqNo s(session, sequence + 1);
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m_sequenceLog[prefix] = s;
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m_syncLogic.addLocalNames (prefix, session, sequence);
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return true;
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}
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bool
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SyncAppSocket::publishRaw(const std::string &prefix, uint32_t session, const char *buf, size_t len, int freshness)
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{
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uint32_t sequence = getNextSeq(prefix, session);
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ostringstream contentNameWithSeqno;
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contentNameWithSeqno << prefix << "/" << session << "/" << sequence;
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m_ccnxHandle->publishRawData (contentNameWithSeqno.str (), buf, len, freshness);
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SeqNo s(session, sequence + 1);
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m_sequenceLog[prefix] = s;
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m_syncLogic.addLocalNames (prefix, session, sequence);
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return true;
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}
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void
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SyncAppSocket::fetchString(const std::string &prefix, const SeqNo &seq, CcnxWrapper::StringDataCallback callback, int retry)
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{
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ostringstream interestName;
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interestName << prefix << "/" << seq.getSession() << "/" << seq.getSeq();
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m_ccnxHandle->sendInterestForString(interestName.str(), callback, retry);
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}
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void
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SyncAppSocket::fetchRaw(const std::string &prefix, const SeqNo &seq, CcnxWrapper::RawDataCallback callback, int retry)
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{
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ostringstream interestName;
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interestName << prefix << "/" << seq.getSession() << "/" << seq.getSeq();
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//std::cout << "Socket " << this << " Send Interest <" << interestName.str() << "> for raw data " << endl;
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m_ccnxHandle->sendInterest(interestName.str(), callback, retry);
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}
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uint32_t
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SyncAppSocket::getNextSeq (const string &prefix, uint32_t session)
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{
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SequenceLog::iterator i = m_sequenceLog.find (prefix);
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if (i != m_sequenceLog.end ())
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{
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SeqNo s = i->second;
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if (s.getSession() == session)
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return s.getSeq();
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}
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return 0;
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}
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}
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