7b14d4a17f
There will need to be some more refactoring for these changes to be considered complete/correct, but for now it's working. new daemon cli argument "--db-type", works for LMDB and BerkeleyDB. A good deal of refactoring is also present in this commit, namely Blockchain no longer instantiates BlockchainDB, but rather is passed a pointer to an already-instantiated BlockchainDB on init().
289 lines
8.4 KiB
C++
289 lines
8.4 KiB
C++
// Copyright (c) 2014, The Monero Project
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <db_cxx.h>
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#include "blockchain_db/blockchain_db.h"
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#include "cryptonote_protocol/blobdatatype.h" // for type blobdata
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namespace cryptonote
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{
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struct bdb_txn_safe
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{
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bdb_txn_safe() : m_txn(NULL) { }
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~bdb_txn_safe()
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{
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LOG_PRINT_L3("bdb_txn_safe: destructor");
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if (m_txn != NULL)
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abort();
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}
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void commit(std::string message = "")
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{
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if (message.size() == 0)
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{
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message = "Failed to commit a transaction to the db";
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}
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if (m_txn->commit(0))
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{
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m_txn = NULL;
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LOG_PRINT_L0(message);
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throw DB_ERROR(message.c_str());
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}
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m_txn = NULL;
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}
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void abort()
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{
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LOG_PRINT_L3("bdb_txn_safe: abort()");
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if(m_txn != NULL)
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{
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m_txn->abort();
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m_txn = NULL;
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}
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else
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{
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LOG_PRINT_L0("WARNING: bdb_txn_safe: abort() called, but m_txn is NULL");
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}
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}
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operator DbTxn*()
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{
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return m_txn;
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}
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operator DbTxn**()
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{
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return &m_txn;
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}
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DbTxn* m_txn;
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};
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class BlockchainBDB : public BlockchainDB
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{
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public:
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BlockchainBDB(bool batch_transactions=false);
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~BlockchainBDB();
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virtual void open(const std::string& filename, const int db_flags);
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virtual void close();
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virtual void sync();
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virtual void reset();
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virtual std::vector<std::string> get_filenames() const;
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virtual std::string get_db_name() const;
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virtual bool lock();
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virtual void unlock();
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virtual bool block_exists(const crypto::hash& h) const;
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virtual block get_block(const crypto::hash& h) const;
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virtual uint64_t get_block_height(const crypto::hash& h) const;
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virtual block_header get_block_header(const crypto::hash& h) const;
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virtual block get_block_from_height(const uint64_t& height) const;
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virtual uint64_t get_block_timestamp(const uint64_t& height) const;
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virtual uint64_t get_top_block_timestamp() const;
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virtual size_t get_block_size(const uint64_t& height) const;
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virtual difficulty_type get_block_cumulative_difficulty(const uint64_t& height) const;
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virtual difficulty_type get_block_difficulty(const uint64_t& height) const;
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virtual uint64_t get_block_already_generated_coins(const uint64_t& height) const;
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virtual crypto::hash get_block_hash_from_height(const uint64_t& height) const;
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virtual std::vector<block> get_blocks_range(const uint64_t& h1, const uint64_t& h2) const;
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virtual std::vector<crypto::hash> get_hashes_range(const uint64_t& h1, const uint64_t& h2) const;
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virtual crypto::hash top_block_hash() const;
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virtual block get_top_block() const;
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virtual uint64_t height() const;
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virtual bool tx_exists(const crypto::hash& h) const;
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virtual uint64_t get_tx_unlock_time(const crypto::hash& h) const;
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virtual transaction get_tx(const crypto::hash& h) const;
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virtual uint64_t get_tx_count() const;
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virtual std::vector<transaction> get_tx_list(const std::vector<crypto::hash>& hlist) const;
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virtual uint64_t get_tx_block_height(const crypto::hash& h) const;
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virtual uint64_t get_random_output(const uint64_t& amount) const;
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virtual uint64_t get_num_outputs(const uint64_t& amount) const;
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virtual crypto::public_key get_output_key(const uint64_t& amount, const uint64_t& index) const;
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virtual tx_out get_output(const crypto::hash& h, const uint64_t& index) const;
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/**
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* @brief get an output from its global index
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*
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* @param index global index of the output desired
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*
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* @return the output associated with the index.
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* Will throw OUTPUT_DNE if not output has that global index.
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* Will throw DB_ERROR if there is a non-specific LMDB error in fetching
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*/
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tx_out get_output(const uint64_t& index) const;
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virtual tx_out_index get_output_tx_and_index_from_global(const uint64_t& index) const;
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virtual tx_out_index get_output_tx_and_index(const uint64_t& amount, const uint64_t& index) const;
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virtual std::vector<uint64_t> get_tx_output_indices(const crypto::hash& h) const;
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virtual std::vector<uint64_t> get_tx_amount_output_indices(const crypto::hash& h) const;
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virtual bool has_key_image(const crypto::key_image& img) const;
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virtual uint64_t add_block( const block& blk
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, const size_t& block_size
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, const difficulty_type& cumulative_difficulty
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, const uint64_t& coins_generated
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, const std::vector<transaction>& txs
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);
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virtual void set_batch_transactions(bool batch_transactions);
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virtual void batch_start();
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virtual void batch_commit();
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virtual void batch_stop();
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virtual void batch_abort();
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virtual void pop_block(block& blk, std::vector<transaction>& txs);
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private:
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virtual void add_block( const block& blk
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, const size_t& block_size
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, const difficulty_type& cumulative_difficulty
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, const uint64_t& coins_generated
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, const crypto::hash& block_hash
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);
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virtual void remove_block();
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virtual void add_transaction_data(const crypto::hash& blk_hash, const transaction& tx, const crypto::hash& tx_hash);
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virtual void remove_transaction_data(const crypto::hash& tx_hash, const transaction& tx);
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virtual void add_output(const crypto::hash& tx_hash, const tx_out& tx_output, const uint64_t& local_index);
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virtual void remove_output(const tx_out& tx_output);
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void remove_tx_outputs(const crypto::hash& tx_hash, const transaction& tx);
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void remove_output(const uint64_t& out_index, const uint64_t amount);
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void remove_amount_output_index(const uint64_t amount, const uint64_t global_output_index);
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virtual void add_spent_key(const crypto::key_image& k_image);
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virtual void remove_spent_key(const crypto::key_image& k_image);
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/**
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* @brief convert a tx output to a blob for storage
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*
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* @param output the output to convert
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*
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* @return the resultant blob
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*/
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blobdata output_to_blob(const tx_out& output);
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/**
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* @brief convert a tx output blob to a tx output
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*
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* @param blob the blob to convert
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*
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* @return the resultant tx output
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*/
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tx_out output_from_blob(const blobdata& blob) const;
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/**
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* @brief get the global index of the index-th output of the given amount
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*
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* @param amount the output amount
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* @param index the index into the set of outputs of that amount
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*
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* @return the global index of the desired output
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*/
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uint64_t get_output_global_index(const uint64_t& amount, const uint64_t& index) const;
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void check_open() const;
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DbEnv* m_env;
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Db* m_blocks;
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Db* m_block_heights;
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Db* m_block_hashes;
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Db* m_block_timestamps;
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Db* m_block_sizes;
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Db* m_block_diffs;
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Db* m_block_coins;
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Db* m_txs;
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Db* m_tx_unlocks;
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Db* m_tx_heights;
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Db* m_tx_outputs;
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Db* m_output_txs;
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Db* m_output_indices;
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Db* m_output_amounts;
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Db* m_output_keys;
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Db* m_spent_keys;
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uint64_t m_height;
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uint64_t m_num_outputs;
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std::string m_folder;
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bdb_txn_safe *m_write_txn;
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bool m_batch_transactions; // support for batch transactions
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};
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} // namespace cryptonote
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