Integrate BlockchainDB into cryptonote_core

Probably needs more looking at -- lot of things were done...in a rushed
sort of way.  That said, it all builds and *should* be at least
testable.

update for rebase (warptangent 2015-01-04)
  fix conflicts with upstream CMakeLists.txt files

  src/CMakeLists.txt (remove edits from original commit)
  tests/CMakeLists.txt (remove edits from original commit)
  src/cryptonote_core/CMakeLists.txt (edit)
  - use blockchain db .cpp and .h files
  - add LMDB_LIBRARIES

src/cryptonote_core/BlockchainDB_impl/db_lmdb.cpp

@@ -672,6 +672,7 @@ void BlockchainLMDB::open(const std::string& filename)
 // unused for now, create will happen on open if doesn't exist
 void BlockchainLMDB::create(const std::string& filename)
 {
+  throw DB_CREATE_FAILURE("create() is not implemented for this BlockchainDB, open() will create files if needed.");
 }
 
 void BlockchainLMDB::close()

src/cryptonote_core/CMakeLists.txt

@@ -29,6 +29,9 @@
 set(cryptonote_core_sources
   account.cpp
   blockchain_storage.cpp
+  blockchain.cpp
+  blockchain_db.cpp
+  BlockchainDB_impl/db_lmdb.cpp
   checkpoints.cpp
   checkpoints_create.cpp
   cryptonote_basic_impl.cpp
@@ -45,6 +48,9 @@ set(cryptonote_core_private_headers
   account_boost_serialization.h
   blockchain_storage.h
   blockchain_storage_boost_serialization.h
+  blockchain.h
+  blockchain_db.h
+  BlockchainDB_impl/db_lmdb.h
   checkpoints.h
   checkpoints_create.h
   connection_context.h
@@ -77,4 +83,5 @@ target_link_libraries(cryptonote_core
     ${Boost_FILESYSTEM_LIBRARY}
     ${Boost_SYSTEM_LIBRARY}
     ${Boost_THREAD_LIBRARY}
+    ${LMDB_LIBRARIES}
     ${EXTRA_LIBRARIES})

src/cryptonote_core/blockchain.cpp

@@ -32,10 +32,14 @@
 #include <cstdio>
 #include <boost/archive/binary_oarchive.hpp>
 #include <boost/archive/binary_iarchive.hpp>
+#include <boost/filesystem.hpp>
 
 #include "include_base_utils.h"
 #include "cryptonote_basic_impl.h"
+#include "tx_pool.h"
 #include "blockchain.h"
+#include "cryptonote_core/blockchain_db.h"
+#include "cryptonote_core/BlockchainDB_impl/db_lmdb.h"
 #include "cryptonote_format_utils.h"
 #include "cryptonote_boost_serialization.h"
 #include "cryptonote_config.h"
@@ -62,10 +66,6 @@ DISABLE_VS_WARNINGS(4267)
 // TODO: initialize m_db with a concrete implementation of BlockchainDB
 Blockchain::Blockchain(tx_memory_pool& tx_pool):m_db(), m_tx_pool(tx_pool), m_current_block_cumul_sz_limit(0), m_is_in_checkpoint_zone(false), m_is_blockchain_storing(false)
 {
-  if (m_db == NULL)
-  {
-    throw new DB_ERROR("database pointer null in blockchain init");
-  }
 }
 //------------------------------------------------------------------
 //TODO: is this still needed?  I don't think so - tewinget
@@ -222,11 +222,23 @@ bool Blockchain::init(const std::string& config_folder, bool testnet)
 {
   CRITICAL_REGION_LOCAL(m_blockchain_lock);
 
+  m_db = new BlockchainLMDB();
+
   m_config_folder = config_folder;
+  m_testnet = testnet;
+
+  boost::filesystem::path folder(m_config_folder);
+
+  // append "testnet" directory as needed
+  if (testnet)
+  {
+    folder /= "testnet";
+  }
+
   LOG_PRINT_L0("Loading blockchain...");
 
   //FIXME: update filename for BlockchainDB
-  const std::string filename = m_config_folder + "/" CRYPTONOTE_BLOCKCHAINDATA_FILENAME;
+  const std::string filename = folder.string();
   try
   {
     m_db->open(filename);
@@ -328,6 +340,8 @@ bool Blockchain::deinit()
   {
     LOG_PRINT_L0("There was an issue closing/storing the blockchain, shutting down now to prevent issues!");
   }
+
+  delete m_db;
   return true;
 }
 //------------------------------------------------------------------
@@ -1450,7 +1464,7 @@ uint64_t Blockchain::block_difficulty(uint64_t i)
 }
 //------------------------------------------------------------------
 template<class t_ids_container, class t_blocks_container, class t_missed_container>
-void Blockchain::get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs)
+bool Blockchain::get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs)
 {
   CRITICAL_REGION_LOCAL(m_blockchain_lock);
 
@@ -1464,11 +1478,16 @@ void Blockchain::get_blocks(const t_ids_container& block_ids, t_blocks_container
     {
       missed_bs.push_back(block_hash);
     }
+    catch (const std::exception& e)
+    {
+      return false;
     }
   }
+  return true;
+}
 //------------------------------------------------------------------
 template<class t_ids_container, class t_tx_container, class t_missed_container>
-void Blockchain::get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs)
+bool Blockchain::get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs)
 {
   CRITICAL_REGION_LOCAL(m_blockchain_lock);
 
@@ -1482,8 +1501,14 @@ void Blockchain::get_transactions(const t_ids_container& txs_ids, t_tx_container
     {
       missed_txs.push_back(tx_hash);
     }
+    //FIXME: is this the correct way to handle this?
+    catch (const std::exception& e)
+    {
+      return false;
     }
   }
+  return true;
+}
 //------------------------------------------------------------------
 void Blockchain::print_blockchain(uint64_t start_index, uint64_t end_index)
 {

src/cryptonote_core/blockchain.h

@@ -41,7 +41,6 @@
 
 #include "syncobj.h"
 #include "string_tools.h"
-#include "tx_pool.h"
 #include "cryptonote_basic.h"
 #include "common/util.h"
 #include "cryptonote_protocol/cryptonote_protocol_defs.h"
@@ -55,6 +54,7 @@
 
 namespace cryptonote
 {
+  class tx_memory_pool;
 
   /************************************************************************/
   /*                                                                      */
@@ -131,16 +131,19 @@ namespace cryptonote
     uint64_t block_difficulty(uint64_t i);
 
     template<class t_ids_container, class t_blocks_container, class t_missed_container>
-    void get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs);
+    bool get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs);
 
     template<class t_ids_container, class t_tx_container, class t_missed_container>
-    void get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs);
+    bool get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs);
 
     //debug functions
     void print_blockchain(uint64_t start_index, uint64_t end_index);
     void print_blockchain_index();
     void print_blockchain_outs(const std::string& file);
 
+    void set_enforce_dns_checkpoints(bool enforce) { }
+    bool update_checkpoints(const std::string& path, bool dns) { return true; }
+
   private:
     typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index;
     typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container;
@@ -175,6 +178,7 @@ namespace cryptonote
     checkpoints m_checkpoints;
     std::atomic<bool> m_is_in_checkpoint_zone;
     std::atomic<bool> m_is_blockchain_storing;
+    bool m_testnet;
 
     bool switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::iterator>& alt_chain, bool discard_disconnected_chain);
     block pop_block_from_blockchain();

src/cryptonote_core/cryptonote_core.cpp

@@ -290,9 +290,9 @@ namespace cryptonote
       return false;
     }
 
-    if(!keeped_by_block && get_object_blobsize(tx) >= m_blockchain_storage.get_current_comulative_blocksize_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE)
+    if(!keeped_by_block && get_object_blobsize(tx) >= m_blockchain_storage.get_current_cumulative_blocksize_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE)
     {
-      LOG_PRINT_RED_L1("tx is too large " << get_object_blobsize(tx) << ", expected not bigger than " << m_blockchain_storage.get_current_comulative_blocksize_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE);
+      LOG_PRINT_RED_L1("tx is too large " << get_object_blobsize(tx) << ", expected not bigger than " << m_blockchain_storage.get_current_cumulative_blocksize_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE);
       return false;
     }
 
@@ -577,7 +577,7 @@ namespace cryptonote
       m_starter_message_showed = true;
     }
 
-    m_store_blockchain_interval.do_call(boost::bind(&blockchain_storage::store_blockchain, &m_blockchain_storage));
+    m_store_blockchain_interval.do_call(boost::bind(&Blockchain::store_blockchain, &m_blockchain_storage));
     m_miner.on_idle();
     m_mempool.on_idle();
     return true;

src/cryptonote_core/cryptonote_core.h

@@ -39,7 +39,7 @@
 #include "cryptonote_protocol/cryptonote_protocol_handler_common.h"
 #include "storages/portable_storage_template_helper.h"
 #include "tx_pool.h"
-#include "blockchain_storage.h"
+#include "blockchain.h"
 #include "miner.h"
 #include "connection_context.h"
 #include "cryptonote_core/cryptonote_stat_info.h"
@@ -112,7 +112,7 @@ namespace cryptonote
      bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res);
      void pause_mine();
      void resume_mine();
-     blockchain_storage& get_blockchain_storage(){return m_blockchain_storage;}
+     Blockchain& get_blockchain_storage(){return m_blockchain_storage;}
      //debug functions
      void print_blockchain(uint64_t start_index, uint64_t end_index);
      void print_blockchain_index();
@@ -149,7 +149,7 @@ namespace cryptonote
 
 
      tx_memory_pool m_mempool;
-     blockchain_storage m_blockchain_storage;
+     Blockchain m_blockchain_storage;
      i_cryptonote_protocol* m_pprotocol;
      epee::critical_section m_incoming_tx_lock;
      //m_miner and m_miner_addres are probably temporary here

src/cryptonote_core/tx_pool.cpp

@@ -37,7 +37,7 @@
 #include "cryptonote_format_utils.h"
 #include "cryptonote_boost_serialization.h"
 #include "cryptonote_config.h"
-#include "blockchain_storage.h"
+#include "blockchain.h"
 #include "common/boost_serialization_helper.h"
 #include "common/int-util.h"
 #include "misc_language.h"
@@ -54,7 +54,7 @@ namespace cryptonote
   }
 
   //---------------------------------------------------------------------------------
-  tx_memory_pool::tx_memory_pool(blockchain_storage& bchs): m_blockchain(bchs)
+  tx_memory_pool::tx_memory_pool(Blockchain& bchs): m_blockchain(bchs)
   {
 
   }

src/cryptonote_core/tx_pool.h

@@ -47,7 +47,7 @@
 
 namespace cryptonote
 {
-  class blockchain_storage;
+  class Blockchain;
   /************************************************************************/
   /*                                                                      */
   /************************************************************************/
@@ -55,7 +55,7 @@ namespace cryptonote
   class tx_memory_pool: boost::noncopyable
   {
   public:
-    tx_memory_pool(blockchain_storage& bchs);
+    tx_memory_pool(Blockchain& bchs);
     bool add_tx(const transaction &tx, const crypto::hash &id, size_t blob_size, tx_verification_context& tvc, bool keeped_by_block);
     bool add_tx(const transaction &tx, tx_verification_context& tvc, bool keeped_by_block);
     //gets tx and remove it from pool
@@ -127,7 +127,7 @@ namespace cryptonote
     //transactions_container m_alternative_transactions;
 
     std::string m_config_folder;
-    blockchain_storage& m_blockchain;
+    Blockchain& m_blockchain;
     /************************************************************************/
     /*                                                                      */
     /************************************************************************/
@@ -170,9 +170,6 @@ namespace cryptonote
       uint64_t operator()(const txin_to_scripthash& tx) const {return 0;}
     };
 
-#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
-    friend class blockchain_storage;
-#endif
   };
 }