60 lines
2.3 KiB
C++
60 lines
2.3 KiB
C++
/*
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* Copyright (c) 2015 Cryptonomex, Inc., and contributors.
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*
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* The MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#pragma once
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#include <fstream>
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#include <graphene/chain/protocol/block.hpp>
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#include <fc/filesystem.hpp>
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namespace graphene { namespace chain {
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class index_entry;
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class block_database
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{
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public:
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void open( const fc::path& dbdir );
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bool is_open()const;
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void flush();
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void close();
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void store( const block_id_type& id, const signed_block& b );
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void remove( const block_id_type& id );
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bool contains( const block_id_type& id )const;
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block_id_type fetch_block_id( uint32_t block_num )const;
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optional<signed_block> fetch_optional( const block_id_type& id )const;
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optional<signed_block> fetch_by_number( uint32_t block_num )const;
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optional<signed_block> last()const;
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optional<block_id_type> last_id()const;
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void set_replay_mode(bool mode);
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private:
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bool replay_mode = false;
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optional<index_entry> last_index_entry()const;
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fc::path _index_filename;
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mutable std::fstream _blocks;
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mutable std::fstream _block_num_to_pos;
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};
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} }
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