113 lines
4.0 KiB
C++
113 lines
4.0 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
|
|
/*
|
|
* Copyright (c) 2012 University of California, Los Angeles
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation;
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
|
|
* Chaoyi Bian <bcy@pku.edu.cn>
|
|
* Alexander Afanasyev <alexander.afanasyev@ucla.edu>
|
|
*/
|
|
|
|
#ifndef SYNC_APP_SOCKET_H
|
|
#define SYNC_APP_SOCKET_H
|
|
|
|
#include "sync-logic.h"
|
|
#include <boost/function.hpp>
|
|
#include <boost/unordered_map.hpp>
|
|
#include "sync-seq-no.h"
|
|
#include "sync-ccnx-wrapper.h"
|
|
#include <utility>
|
|
#include <map>
|
|
#include <vector>
|
|
#include <sstream>
|
|
|
|
namespace Sync {
|
|
|
|
/**
|
|
* \ingroup sync
|
|
* @brief A simple interface to interact with client code
|
|
*/
|
|
class SyncAppSocket
|
|
{
|
|
public:
|
|
typedef boost::function< void (const std::vector<MissingDataInfo> &, SyncAppSocket * ) > NewDataCallback;
|
|
typedef boost::function< void ( const std::string &/*prefix*/ ) > RemoveCallback;
|
|
/**
|
|
* @brief the constructor for SyncAppSocket; the parameter syncPrefix
|
|
* should be passed to the constructor of m_syncAppWrapper; the other
|
|
* parameter should be passed to the constructor of m_fetcher; furthermore,
|
|
* the fetch function of m_fetcher should be a second paramter passed to
|
|
* the constructor of m_syncAppWrapper, so that m_syncAppWrapper can tell
|
|
* m_fetcher to fetch the actual app data after it learns the names
|
|
*
|
|
* @param syncPrefix the name prefix for Sync Interest
|
|
* @param dataCallback the callback to process data
|
|
*/
|
|
SyncAppSocket (const std::string &syncPrefix, NewDataCallback dataCallback, RemoveCallback rmCallback);
|
|
~SyncAppSocket ();
|
|
|
|
/**
|
|
* @brief publish data from local client and tell SyncLogic to update
|
|
* the sync tree by adding the local names
|
|
*
|
|
* @param prefix the name prefix for the data
|
|
* @param session session to which data is published
|
|
* @param dataBuffer the data itself
|
|
* @param freshness the freshness time for the data (in seconds)
|
|
*/
|
|
bool publishString (const std::string &prefix, uint32_t session, const std::string &dataBuffer, int freshness);
|
|
|
|
bool publishRaw(const std::string &prefix, uint32_t session, const char *buf, size_t len, int freshness);
|
|
|
|
/**
|
|
* @brief delete a participant's subtree from the sync tree; SyncLogic will do the work
|
|
* this is just a wrapper
|
|
*
|
|
* @param prefix the prefix for the participant
|
|
*/
|
|
void remove (const std::string &prefix) {m_syncLogic.remove(prefix);}
|
|
|
|
void fetchString(const std::string &prefix, const SeqNo &seq, CcnxWrapper::StringDataCallback callback, int retry = 0);
|
|
void fetchRaw(const std::string &prefix, const SeqNo &seq, CcnxWrapper::RawDataCallback callback, int retry = 0);
|
|
|
|
// for sync-demo
|
|
std::string getRootDigest() {return m_syncLogic.getRootDigest();}
|
|
uint32_t
|
|
getNextSeq (const std::string &prefix, uint32_t session);
|
|
|
|
SyncLogic &
|
|
getLogic () { return m_syncLogic; }
|
|
|
|
// make this a static function so we don't have to create socket instance without
|
|
// knowing the local prefix. it's a wrong place for this function anyway
|
|
static std::string
|
|
GetLocalPrefix ();
|
|
|
|
private:
|
|
void
|
|
passCallback(const std::vector<MissingDataInfo> &v) {m_newDataCallback(v, this);}
|
|
|
|
private:
|
|
typedef boost::unordered_map<std::string, SeqNo> SequenceLog;
|
|
NewDataCallback m_newDataCallback;
|
|
SequenceLog m_sequenceLog;
|
|
CcnxWrapperPtr m_ccnxHandle;
|
|
SyncLogic m_syncLogic;
|
|
};
|
|
|
|
} // Sync
|
|
|
|
#endif // SYNC_APP_SOCKET_H
|