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61 lines
1.9 KiB
61 lines
1.9 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum 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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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file WhisperDB.h
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* @author Vladislav Gluhovsky <vlad@ethdev.com>
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* @date July 2015
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*/
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#pragma once
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#include <libdevcore/db.h>
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#include <libdevcore/FixedHash.h>
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#include "Common.h"
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#include "Message.h"
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namespace dev
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{
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namespace shh
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{
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struct FailedToOpenLevelDB: virtual Exception { FailedToOpenLevelDB(std::string const& _message): Exception(_message) {} };
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struct FailedInsertInLevelDB: virtual Exception { FailedInsertInLevelDB(std::string const& _message): Exception(_message) {} };
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struct FailedLookupInLevelDB: virtual Exception { FailedLookupInLevelDB(std::string const& _message): Exception(_message) {} };
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struct FailedDeleteInLevelDB: virtual Exception { FailedDeleteInLevelDB(std::string const& _message): Exception(_message) {} };
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class WhisperDB
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{
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public:
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WhisperDB();
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~WhisperDB() {}
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std::string lookup(dev::h256 const& _key) const;
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void insert(dev::h256 const& _key, std::string const& _value);
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void insert(dev::h256 const& _key, bytes const& _value);
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void kill(dev::h256 const& _key);
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void loadAll(std::map<h256, Envelope>& o_dst);
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void save(dev::h256 const& _key, Envelope const& _e);
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private:
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leveldb::ReadOptions m_readOptions;
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leveldb::WriteOptions m_writeOptions;
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std::unique_ptr<leveldb::DB> m_db;
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enum MetaInformation { StoreForeverFlag = 1, WatchedFlag = 2 };
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};
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}
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}
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