Initial commit of lmdb BlockchainDB impl

This commit is contained in:
Thomas Winget 2014-10-21 16:33:43 -04:00 committed by warptangent
parent bc44bc19f4
commit b98b96489f
2 changed files with 472 additions and 0 deletions

View File

@ -0,0 +1,319 @@
// Copyright (c) 2014, The Monero Project
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "db_lmdb.h"
namespace cryptonote
{
#define CN_LMDB_DBI_OPEN( txn, flags, dbi ) \
if (mdb_dbi_open(txn, NULL, flags, &dbi)) \
{ \
throw DB_OPEN_FAILURE( "Failed to open db handle for ##dbi" ); \
}
void BlockchainLMDB::add_block( const block& blk
, const size_t& block_size
, const difficulty_type& cumulative_difficulty
, const uint64_t& coins_generated
)
{
}
void BlockchainLMDB::remove_block(const crypto::hash& blk_hash)
{
}
void BlockchainLMDB::add_transaction_data(const crypto::hash& blk_hash, const transaction& tx)
{
}
void BlockchainLMDB::remove_transaction_data(const crypto::hash& tx_hash)
{
}
void BlockchainLMDB::add_output(const crypto::hash& tx_hash, const tx_out& tx_output, const uint64_t& local_index)
{
}
void BlockchainLMDB::remove_output(const tx_out& tx_output)
{
}
void BlockchainLMDB::add_spent_key(const crypto::key_image& k_image)
{
}
void BlockchainLMDB::remove_spent_key(const crypto::key_image& k_image)
{
}
BlockchainLMDB::~BlockchainLMDB()
{
}
BlockchainLMDB::BlockchainLMDB()
{
}
void BlockchainLMDB::open(const std::string& filename)
{
if (mdb_env_create(&m_env))
{
throw DB_ERROR("Failed to create lmdb environment");
}
if (mdb_env_open(m_env, filename.c_str(), 0, 0664))
{
throw DB_ERROR("Failed to open lmdb environment");
}
if (mdb_env_set_maxdbs(m_env, 15))
{
throw DB_ERROR("Failed to set max number of dbs");
}
MDB_txn* txn;
if (mdb_txn_begin(m_env, NULL, 0, &txn))
{
throw DB_ERROR("Failed to create a transaction for the db");
}
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_blocks)
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_block_txs)
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_block_hashes)
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_block_sizes)
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_block_diffs)
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_block_coins)
CN_LMDB_DBI_OPEN(txn, MDB_CREATE | MDB_DUPSORT, m_txs)
if (mdb_txn_commit(txn))
{
throw DB_OPEN_FAILURE("Failed to commit db open transaction");
}
// from here, init should be finished
}
// unused for now, create will happen on open if doesn't exist
void BlockchainLMDB::create(const std::string& filename)
{
}
void BlockchainLMDB::close()
{
}
void BlockchainLMDB::sync()
{
}
void BlockchainLMDB::reset()
{
}
std::vector<std::string> BlockchainLMDB::get_filenames()
{
std::vector<std::string> retval;
return retval;
}
bool BlockchainLMDB::lock()
{
return false;
}
void BlockchainLMDB::unlock()
{
}
bool BlockchainLMDB::block_exists(const crypto::hash& h)
{
return false;
}
block BlockchainLMDB::get_block(const crypto::hash& h)
{
block b;
return b;
}
uint64_t BlockchainLMDB::get_block_height(const crypto::hash& h)
{
return 0;
}
block_header BlockchainLMDB::get_block_header(const crypto::hash& h)
{
block_header bh;
return bh;
}
block BlockchainLMDB::get_block_from_height(const uint64_t& height)
{
block b;
return b;
}
uint64_t BlockchainLMDB::get_block_timestamp(const uint64_t& height)
{
return 0;
}
uint64_t BlockchainLMDB::get_top_block_timestamp()
{
return 0;
}
size_t BlockchainLMDB::get_block_size(const uint64_t& height)
{
return 0;
}
difficulty_type BlockchainLMDB::get_block_cumulative_difficulty(const uint64_t& height)
{
return 0;
}
difficulty_type BlockchainLMDB::get_block_difficulty(const uint64_t& height)
{
return 0;
}
uint64_t BlockchainLMDB::get_block_already_generated_coins(const uint64_t& height)
{
return 0;
}
crypto::hash BlockchainLMDB::get_block_hash_from_height(const uint64_t& height)
{
crypto::hash h;
return h;
}
std::vector<block> BlockchainLMDB::get_blocks_range(const uint64_t& h1, const uint64_t& h2)
{
std::vector<block> v;
return v;
}
std::vector<crypto::hash> BlockchainLMDB::get_hashes_range(const uint64_t& h1, const uint64_t& h2)
{
std::vector<crypto::hash> v;
return v;
}
crypto::hash BlockchainLMDB::top_block_hash()
{
crypto::hash h;
return h;
}
block BlockchainLMDB::get_top_block()
{
block b;
return b;
}
uint64_t BlockchainLMDB::height()
{
return 0;
}
bool BlockchainLMDB::tx_exists(const crypto::hash& h)
{
return false;
}
uint64_t BlockchainLMDB::get_tx_unlock_time(const crypto::hash& h)
{
return 0;
}
transaction BlockchainLMDB::get_tx(const crypto::hash& h)
{
transaction t;
return t;
}
uint64_t BlockchainLMDB::get_tx_count()
{
return 0;
}
std::vector<transaction> BlockchainLMDB::get_tx_list(const std::vector<crypto::hash>& hlist)
{
std::vector<transaction> v;
return v;
}
uint64_t BlockchainLMDB::get_tx_block_height(const crypto::hash& h)
{
return 0;
}
uint64_t BlockchainLMDB::get_random_output(const uint64_t& amount)
{
return 0;
}
uint64_t BlockchainLMDB::get_num_outputs(const uint64_t& amount)
{
return 0;
}
crypto::public_key BlockchainLMDB::get_output_key(const uint64_t& amount, const uint64_t& index)
{
crypto::public_key pk;
return pk;
}
tx_out BlockchainLMDB::get_output(const crypto::hash& h, const uint64_t& index)
{
tx_out o;
return o;
}
tx_out_index BlockchainLMDB::get_output_tx_and_index(const uint64_t& amount, const uint64_t& index)
{
tx_out_index i;
return i;
}
std::vector<uint64_t> BlockchainLMDB::get_tx_output_indices(const crypto::hash& h)
{
std::vector<uint64_t> v;
return v;
}
bool BlockchainLMDB::has_key_image(const crypto::key_image& img)
{
return false;
}
} // namespace cryptonote

View File

@ -0,0 +1,153 @@
// Copyright (c) 2014, The Monero Project
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "cryptonote_core/blockchain_db.h"
#include <lmdb.h>
namespace cryptonote
{
class BlockchainLMDB : public BlockchainDB
{
public:
BlockchainLMDB();
~BlockchainLMDB();
virtual void open(const std::string& filename);
virtual void create(const std::string& filename);
virtual void close();
virtual void sync();
virtual void reset();
virtual std::vector<std::string> get_filenames();
virtual bool lock();
virtual void unlock();
virtual bool block_exists(const crypto::hash& h);
virtual block get_block(const crypto::hash& h);
virtual uint64_t get_block_height(const crypto::hash& h);
virtual block_header get_block_header(const crypto::hash& h);
virtual block get_block_from_height(const uint64_t& height);
virtual uint64_t get_block_timestamp(const uint64_t& height) ;
virtual uint64_t get_top_block_timestamp();
virtual size_t get_block_size(const uint64_t& height);
virtual difficulty_type get_block_cumulative_difficulty(const uint64_t& height);
virtual difficulty_type get_block_difficulty(const uint64_t& height);
virtual uint64_t get_block_already_generated_coins(const uint64_t& height);
virtual crypto::hash get_block_hash_from_height(const uint64_t& height);
virtual std::vector<block> get_blocks_range(const uint64_t& h1, const uint64_t& h2);
virtual std::vector<crypto::hash> get_hashes_range(const uint64_t& h1, const uint64_t& h2);
virtual crypto::hash top_block_hash();
virtual block get_top_block();
virtual uint64_t height();
virtual bool tx_exists(const crypto::hash& h);
virtual uint64_t get_tx_unlock_time(const crypto::hash& h);
virtual transaction get_tx(const crypto::hash& h);
virtual uint64_t get_tx_count();
virtual std::vector<transaction> get_tx_list(const std::vector<crypto::hash>& hlist);
virtual uint64_t get_tx_block_height(const crypto::hash& h);
virtual uint64_t get_random_output(const uint64_t& amount);
virtual uint64_t get_num_outputs(const uint64_t& amount);
virtual crypto::public_key get_output_key(const uint64_t& amount, const uint64_t& index);
virtual tx_out get_output(const crypto::hash& h, const uint64_t& index);
virtual tx_out_index get_output_tx_and_index(const uint64_t& amount, const uint64_t& index);
virtual std::vector<uint64_t> get_tx_output_indices(const crypto::hash& h);
virtual bool has_key_image(const crypto::key_image& img);
private:
virtual void add_block( const block& blk
, const size_t& block_size
, const difficulty_type& cumulative_difficulty
, const uint64_t& coins_generated
);
virtual void remove_block(const crypto::hash& blk_hash);
virtual void add_transaction_data(const crypto::hash& blk_hash, const transaction& tx);
virtual void remove_transaction_data(const crypto::hash& tx_hash);
virtual void add_output(const crypto::hash& tx_hash, const tx_out& tx_output, const uint64_t& local_index);
virtual void remove_output(const tx_out& tx_output);
virtual void add_spent_key(const crypto::key_image& k_image);
virtual void remove_spent_key(const crypto::key_image& k_image);
MDB_env* m_env;
MDB_dbi m_blocks;
MDB_dbi m_block_txs;
MDB_dbi m_block_hashes;
MDB_dbi m_block_sizes;
MDB_dbi m_block_diffs;
MDB_dbi m_block_coins;
MDB_dbi m_txs;
MDB_dbi m_spent;
MDB_dbi m_utxo;
};
} // namespace cryptonote