Initial commit of lmdb BlockchainDB impl

src/cryptonote_core/BlockchainDB_impl/db_lmdb.cpp

@@ -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