2018-05-21 18:23:52 +02:00

86 lines
2.9 KiB
C++

/*******************************************************************************
* bitdht/bdhash.h *
* *
* BitDHT: An Flexible DHT library. *
* *
* Copyright 2010 by Robert Fernie <bitdht@lunamutt.com> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Affero General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* 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 Affero General Public License for more details. *
* *
* You should have received a copy of the GNU Affero General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#ifndef BITDHT_HASH_SPACE_H
#define BITDHT_HASH_SPACE_H
#include "bitdht/bdpeer.h"
#include <list>
#include <string>
#include <map>
#define BITDHT_HASH_ENTRY_ADD 1
#define BITDHT_HASH_ENTRY_DELETE 2
class bdHashEntry
{
public:
bdHashEntry(std::string value, std::string secret, time_t lifetime, time_t store);
std::string mValue;
time_t mStoreTS;
/* These are nice features that OpenDHT had */
std::string mSecret;
time_t mLifetime;
};
class bdHashSet
{
public:
bdHashSet(bdNodeId *id);
int search(std::string key, uint32_t maxAge, std::list<bdHashEntry> &entries);
int modify(std::string key, bdHashEntry *entry, uint32_t modFlags);
int printHashSet(std::ostream &out);
int cleanupHashSet(uint32_t maxAge);
bdNodeId mId;
std::multimap<std::string, bdHashEntry> mEntries;
};
class bdHashSpace
{
public:
bdHashSpace();
/* accessors */
int search(bdNodeId *id, std::string key, uint32_t maxAge, std::list<bdHashEntry> &entries);
int modify(bdNodeId *id, std::string key, bdHashEntry *entry, uint32_t modFlags);
int printHashSpace(std::ostream&);
int cleanHashSpace(bdNodeId *min, bdNodeId *max, time_t maxAge);
int clear();
private:
std::map<bdNodeId, bdHashSet> mHashTable;
};
#endif