very, VERY primitive blockchain converter

hard-coded config folder, hard-coded BlockchainDB subclass.

Needs finessing, but should be testable this way.

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

  src/CMakeLists.txt (edit original commit)
  src/blockchain_converter/CMakeLists.txt (add)

5 files changed, 171 insertions, 14 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a80dfe378..7c4492b01 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -97,3 +97,5 @@ add_subdirectory(connectivity_tool)
 add_subdirectory(miner)
 add_subdirectory(simplewallet)
 add_subdirectory(daemon)
+
+add_subdirectory(blockchain_converter)
diff --git a/src/blockchain_converter/CMakeLists.txt b/src/blockchain_converter/CMakeLists.txt
new file mode 100644
index 000000000..713ba18ef
--- /dev/null
+++ b/src/blockchain_converter/CMakeLists.txt
@@ -0,0 +1,51 @@
+# Copyright (c) 2014-2015, 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.
+
+set(blockchain_converter_sources
+  blockchain_converter.cpp
+  )
+
+set(blockchain_converter_private_headers)
+
+bitmonero_private_headers(blockchain_converter
+	  ${blockchain_converter_private_headers})
+
+bitmonero_add_executable(blockchain_converter
+  ${blockchain_converter_sources}
+  ${blockchain_converter_private_headers})
+
+target_link_libraries(blockchain_converter
+  LINK_PRIVATE
+    cryptonote_core
+    ${CMAKE_THREAD_LIBS_INIT})
+
+add_dependencies(blockchain_converter
+	version)
+set_property(TARGET blockchain_converter
+	PROPERTY
+	OUTPUT_NAME "blockchain_converter")
diff --git a/src/blockchain_converter/blockchain_converter.cpp b/src/blockchain_converter/blockchain_converter.cpp
new file mode 100644
index 000000000..5dc937b3b
--- /dev/null
+++ b/src/blockchain_converter/blockchain_converter.cpp
@@ -0,0 +1,99 @@
+// 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 "include_base_utils.h"
+#include "common/util.h"
+#include "warnings.h"
+#include "crypto/crypto.h"
+#include "cryptonote_config.h"
+#include "cryptonote_core/cryptonote_format_utils.h"
+#include "misc_language.h"
+#include "cryptonote_core/blockchain_storage.h"
+#include "cryptonote_core/blockchain_db.h"
+#include "cryptonote_core/blockchain.h"
+#include "cryptonote_core/BlockchainDB_impl/db_lmdb.h"
+#include "cryptonote_core/tx_pool.h"
+
+using namespace cryptonote;
+
+struct fake_core
+{
+  tx_memory_pool m_pool;
+  Blockchain dummy;
+
+  blockchain_storage m_storage;
+
+
+  fake_core() : m_pool(dummy), dummy(m_pool), m_storage(&m_pool)
+  {
+    m_pool.init("~/.bitmonero");
+    m_storage.init("~/.bitmonero", false);
+  }
+};
+
+int main(int argc, char* argv[])
+{
+  fake_core c;
+
+  BlockchainDB *blockchain;
+
+  blockchain = new BlockchainLMDB();
+
+  blockchain->open("~/.bitmonero");
+
+  for (uint64_t i = 0; i < c.m_storage.get_current_blockchain_height(); ++i)
+  {
+    block b = c.m_storage.get_block(i);
+    size_t bsize = c.m_storage.get_block_size(i);
+    difficulty_type bdiff = c.m_storage.get_block_cumulative_difficulty(i);
+    uint64_t bcoins = c.m_storage.get_block_coins_generated(i);
+    std::vector<transaction> txs;
+    std::vector<crypto::hash> missed;
+
+    c.m_storage.get_transactions(b.tx_hashes, txs, missed);
+    if (missed.size())
+    {
+      std::cerr << "Missed transaction(s) for block at height " << i << ", exiting" << std::endl;
+      delete blockchain;
+      return 1;
+    }
+
+    try
+    {
+      blockchain->add_block(b, bsize, bdiff, bcoins, txs);
+    }
+    catch (const std::exception& e)
+    {
+      std::cerr << "Error adding block to new blockchain: " << e.what() << std::endl;
+      delete blockchain;
+      return 2;
+    }
+  }
+
+  return 0;
+}
diff --git a/src/cryptonote_core/blockchain_storage.cpp b/src/cryptonote_core/blockchain_storage.cpp
index e2b6f2326..e40eb6a0f 100644
--- a/src/cryptonote_core/blockchain_storage.cpp
+++ b/src/cryptonote_core/blockchain_storage.cpp
@@ -231,7 +231,7 @@ bool blockchain_storage::pop_block_from_blockchain()
   m_blocks_index.erase(bl_ind);
   //pop block from core
   m_blocks.pop_back();
-  m_tx_pool.on_blockchain_dec(m_blocks.size()-1, get_tail_id());
+  m_tx_pool->on_blockchain_dec(m_blocks.size()-1, get_tail_id());
   return true;
 }
 //------------------------------------------------------------------
@@ -307,7 +307,7 @@ bool blockchain_storage::purge_transaction_from_blockchain(const crypto::hash& t
   if(!is_coinbase(tx))
   {
     cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
-    bool r = m_tx_pool.add_tx(tx, tvc, true);
+    bool r = m_tx_pool->add_tx(tx, tvc, true);
     CHECK_AND_ASSERT_MES(r, false, "purge_block_data_from_blockchain: failed to add transaction to transaction pool");
   }
 
@@ -676,16 +676,16 @@ bool blockchain_storage::create_block_template(block& b, const account_public_ad
 
   size_t txs_size;
   uint64_t fee;
-  if (!m_tx_pool.fill_block_template(b, median_size, already_generated_coins, txs_size, fee)) {
+  if (!m_tx_pool->fill_block_template(b, median_size, already_generated_coins, txs_size, fee)) {
     return false;
   }
 #if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
   size_t real_txs_size = 0;
   uint64_t real_fee = 0;
-  CRITICAL_REGION_BEGIN(m_tx_pool.m_transactions_lock);
+  CRITICAL_REGION_BEGIN(m_tx_pool->m_transactions_lock);
   BOOST_FOREACH(crypto::hash &cur_hash, b.tx_hashes) {
-    auto cur_res = m_tx_pool.m_transactions.find(cur_hash);
-    if (cur_res == m_tx_pool.m_transactions.end()) {
+    auto cur_res = m_tx_pool->m_transactions.find(cur_hash);
+    if (cur_res == m_tx_pool->m_transactions.end()) {
       LOG_ERROR("Creating block template: error: transaction not found");
       continue;
     }
@@ -1658,7 +1658,7 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
     transaction tx;
     size_t blob_size = 0;
     uint64_t fee = 0;
-    if(!m_tx_pool.take_tx(tx_id, tx, blob_size, fee))
+    if(!m_tx_pool->take_tx(tx_id, tx, blob_size, fee))
     {
       LOG_PRINT_L1("Block with id: " << id  << "has at least one unknown transaction with id: " << tx_id);
       purge_block_data_from_blockchain(bl, tx_processed_count);
@@ -1670,7 +1670,7 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
     {
       LOG_PRINT_L1("Block with id: " << id  << "has at least one transaction (id: " << tx_id << ") with wrong inputs.");
       cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
-      bool add_res = m_tx_pool.add_tx(tx, tvc, true);
+      bool add_res = m_tx_pool->add_tx(tx, tvc, true);
       CHECK_AND_ASSERT_MES2(add_res, "handle_block_to_main_chain: failed to add transaction back to transaction pool");
       purge_block_data_from_blockchain(bl, tx_processed_count);
       add_block_as_invalid(bl, id);
@@ -1683,7 +1683,7 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
     {
        LOG_PRINT_L1("Block with id: " << id << " failed to add transaction to blockchain storage");
        cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
-       bool add_res = m_tx_pool.add_tx(tx, tvc, true);
+       bool add_res = m_tx_pool->add_tx(tx, tvc, true);
        CHECK_AND_ASSERT_MES2(add_res, "handle_block_to_main_chain: failed to add transaction back to transaction pool");
        purge_block_data_from_blockchain(bl, tx_processed_count);
        bvc.m_verifivation_failed = true;
@@ -1738,7 +1738,7 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
   /*if(!m_orphanes_reorganize_in_work)
     review_orphaned_blocks_with_new_block_id(id, true);*/
 
-  m_tx_pool.on_blockchain_inc(bei.height, id);
+  m_tx_pool->on_blockchain_inc(bei.height, id);
   //LOG_PRINT_L0("BLOCK: " << ENDL << "" << dump_obj_as_json(bei.bl));
   return true;
 }
@@ -1761,7 +1761,7 @@ bool blockchain_storage::add_new_block(const block& bl_, block_verification_cont
   //copy block here to let modify block.target
   block bl = bl_;
   crypto::hash id = get_block_hash(bl);
-  CRITICAL_REGION_LOCAL(m_tx_pool);//to avoid deadlock lets lock tx_pool for whole add/reorganize process
+  CRITICAL_REGION_LOCAL(*m_tx_pool);//to avoid deadlock lets lock tx_pool for whole add/reorganize process
   CRITICAL_REGION_LOCAL1(m_blockchain_lock);
   if(have_block(id))
   {
diff --git a/src/cryptonote_core/blockchain_storage.h b/src/cryptonote_core/blockchain_storage.h
index 1bfdf7bd0..671da40a8 100644
--- a/src/cryptonote_core/blockchain_storage.h
+++ b/src/cryptonote_core/blockchain_storage.h
@@ -78,7 +78,7 @@ namespace cryptonote
       uint64_t already_generated_coins;
     };
 
-    blockchain_storage(tx_memory_pool& tx_pool):m_tx_pool(tx_pool), m_current_block_cumul_sz_limit(0), m_is_in_checkpoint_zone(false), m_is_blockchain_storing(false), m_enforce_dns_checkpoints(false)
+    blockchain_storage(tx_memory_pool* tx_pool):m_tx_pool(tx_pool), m_current_block_cumul_sz_limit(0), m_is_in_checkpoint_zone(false), m_is_blockchain_storing(false), m_enforce_dns_checkpoints(false)
     {};
 
     bool init() { return init(tools::get_default_data_dir(), true); }
@@ -166,7 +166,7 @@ namespace cryptonote
         if(it == m_transactions.end())
         {
           transaction tx;
-          if(!m_tx_pool.get_transaction(tx_id, tx))
+          if(!m_tx_pool->get_transaction(tx_id, tx))
             missed_txs.push_back(tx_id);
           else
             txs.push_back(tx);
@@ -184,6 +184,11 @@ namespace cryptonote
     bool update_checkpoints(const std::string& file_path, bool check_dns);
     void set_enforce_dns_checkpoints(bool enforce_checkpoints);
 
+    block get_block(uint64_t height) { return m_blocks[height].bl; }
+    size_t get_block_size(uint64_t height) { return m_blocks[height].block_cumulative_size; }
+    difficulty_type get_block_cumulative_difficulty(uint64_t height) { return m_blocks[height].cumulative_difficulty; }
+    uint64_t get_block_coins_generated(uint64_t height) { return m_blocks[height].already_generated_coins; }
+
   private:
     typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index;
     typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container;
@@ -193,7 +198,7 @@ namespace cryptonote
     typedef std::unordered_map<crypto::hash, block> blocks_by_hash;
     typedef std::map<uint64_t, std::vector<std::pair<crypto::hash, size_t>>> outputs_container; //crypto::hash - tx hash, size_t - index of out in transaction
 
-    tx_memory_pool& m_tx_pool;
+    tx_memory_pool* m_tx_pool;
     epee::critical_section m_blockchain_lock; // TODO: add here reader/writer lock
 
     // main chain