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BerkeleyDB Blockchain building, not working yet

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Everything except actually *using* BlockchainBDB is wired up, but the db
itself is not yet working.  Some error about user mem not large enough.
I think I know what this error means, but I can't determine the cause.

Notes: BerkeleyDB does not allow 0-indexing in its recno type databases,
  so block numbers *in the database* will be 1-indexed.  Modifications
  to indexing have been made as needed.
This commit is contained in:
Thomas Winget 2015-03-16 09:14:51 -04:00
parent cade0da8f1
commit 43477b7dac
No known key found for this signature in database
GPG key ID: 58131A160789E630
6 changed files with 247 additions and 193 deletions
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25
cmake/FindBerkeleyDB.cmake Normal file
View file

@ -0,0 +1,25 @@
# - Try to find Berkeley DB
# Once done this will define
#
# BERKELEY_DB_FOUND - system has Berkeley DB
# BERKELEY_DB_INCLUDE_DIR - the Berkeley DB include directory
# BERKELEY_DB_LIBRARIES - Link these to use Berkeley DB
# BERKELEY_DB_DEFINITIONS - Compiler switches required for using Berkeley DB
# Copyright (c) 2006, Alexander Dymo, <adymo@kdevelop.org>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
find_path(BERKELEY_DB_INCLUDE_DIR db_cxx.h
/usr/include/db4
/usr/local/include/db4
)
find_library(BERKELEY_DB_LIBRARIES NAMES db_cxx )
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Berkeley "Could not find Berkeley DB >= 4.1" BERKELEY_DB_INCLUDE_DIR BERKELEY_DB_LIBRARIES)
# show the BERKELEY_DB_INCLUDE_DIR and BERKELEY_DB_LIBRARIES variables only in the advanced view
mark_as_advanced(BERKELEY_DB_INCLUDE_DIR BERKELEY_DB_LIBRARIES )

10
external/db_drivers/CMakeLists.txt vendored
View file

@ -50,7 +50,7 @@ endif()
find_package(BerkeleyDB) find_package(BerkeleyDB)
if(NOT DB_LIBRARIES OR STATIC) if(NOT BERKELEY_DB_LIBRARIES OR STATIC)
add_subdirectory(libdb) add_subdirectory(libdb)
message(STATUS "BerkeleyDB not found, building from src tree") message(STATUS "BerkeleyDB not found, building from src tree")
@ -58,12 +58,12 @@ if(NOT DB_LIBRARIES OR STATIC)
set(BDB_INCLUDE "${CMAKE_CURRENT_SOURCE_DIR}/libdb" PARENT_SCOPE) set(BDB_INCLUDE "${CMAKE_CURRENT_SOURCE_DIR}/libdb" PARENT_SCOPE)
set(BDB_LIBRARY "db" PARENT_SCOPE) set(BDB_LIBRARY "db" PARENT_SCOPE)
else() else()
message(STATUS "Found BerkeleyDB include (db.h) in ${DB_INCLUDE_DIR}") message(STATUS "Found BerkeleyDB include (db.h) in ${BERKELEY_DB_INCLUDE_DIR}")
if(DB_LIBRARIES) if(BERKELEY_DB_LIBRARIES)
message(STATUS "Found BerkeleyDB shared library") message(STATUS "Found BerkeleyDB shared library")
set(BDB_STATIC false PARENT_SCOPE) set(BDB_STATIC false PARENT_SCOPE)
set(BDB_INCLUDE ${DB_INCLUDE_DIR} PARENT_SCOPE) set(BDB_INCLUDE ${BERKELEY_DB_INCLUDE_DIR} PARENT_SCOPE)
set(BDB_LIBRARY ${DB_LIBRARIES} PARENT_SCOPE) set(BDB_LIBRARY ${BERKELEY_DB_LIBRARIES} PARENT_SCOPE)
set(BDB_LIBRARY_DIRS "" PARENT_SCOPE) set(BDB_LIBRARY_DIRS "" PARENT_SCOPE)
else() else()
die("Found BerkeleyDB includes, but could not find BerkeleyDB library. Please make sure you have installed libdb and libdb-dev or the equivalent") die("Found BerkeleyDB includes, but could not find BerkeleyDB library. Please make sure you have installed libdb and libdb-dev or the equivalent")

4
src/blockchain_db/CMakeLists.txt
View file

@ -54,10 +54,10 @@ target_link_libraries(blockchain_db
${Boost_DATE_TIME_LIBRARY} ${Boost_DATE_TIME_LIBRARY}
${Boost_PROGRAM_OPTIONS_LIBRARY} ${Boost_PROGRAM_OPTIONS_LIBRARY}
${Boost_SERIALIZATION_LIBRARY} ${Boost_SERIALIZATION_LIBRARY}
${LMDB_LIBRARY}
${BDB_LIBRARY}
LINK_PRIVATE LINK_PRIVATE
${Boost_FILESYSTEM_LIBRARY} ${Boost_FILESYSTEM_LIBRARY}
${Boost_SYSTEM_LIBRARY} ${Boost_SYSTEM_LIBRARY}
${Boost_THREAD_LIBRARY} ${Boost_THREAD_LIBRARY}
${LMDB_LIBRARY}
${BDB_LIBRARY}
${EXTRA_LIBRARIES}) ${EXTRA_LIBRARIES})

367
src/blockchain_db/berkeleydb/db_bdb.cpp
View file

@ -69,6 +69,7 @@ struct bdb_cur
operator Dbc*() { return m_cur; } operator Dbc*() { return m_cur; }
operator Dbc**() { return &m_cur; } operator Dbc**() { return &m_cur; }
Dbc* operator->() { return m_cur; }
void close() void close()
{ {
@ -138,8 +139,9 @@ struct Dbt_copy<cryptonote::blobdata>: public Dbt
Dbt_copy(const cryptonote::blobdata &bd) : m_data(new char[bd.size()]) Dbt_copy(const cryptonote::blobdata &bd) : m_data(new char[bd.size()])
{ {
memcpy(m_data.get(), bd.data(), bd.size()); memcpy(m_data.get(), bd.data(), bd.size());
set_data(&m_data); set_data(m_data.get());
set_size(bd.size()); set_size(bd.size());
set_flags(DB_DBT_USERMEM);
} }
private: private:
std::unique_ptr<char[]> m_data; std::unique_ptr<char[]> m_data;
@ -177,52 +179,52 @@ void BlockchainBDB::add_block( const block& blk
check_open(); check_open();
Dbt_copy<crypto::hash> val_h(blk_hash); Dbt_copy<crypto::hash> val_h(blk_hash);
if (m_block_heights->exists(m_write_txn, &val_h, 0) == 0) if (m_block_heights->exists(*m_write_txn, &val_h, 0) == 0)
throw1(BLOCK_EXISTS("Attempting to add block that's already in the db")); throw1(BLOCK_EXISTS("Attempting to add block that's already in the db"));
if (m_height > 0) if (m_height > 1)
{ {
Dbt_copy<crypto::hash> parent_key(blk.prev_id); Dbt_copy<crypto::hash> parent_key(blk.prev_id);
Dbt_copy<crypto::hash> parent_h; Dbt_copy<uint32_t> parent_h;
if (m_block_heights->get(m_write_txn, &parent_key, &parent_h, 0)) if (m_block_heights->get(*m_write_txn, &parent_key, &parent_h, 0))
{ {
LOG_PRINT_L3("m_height: " << m_height); LOG_PRINT_L3("m_height: " << m_height);
LOG_PRINT_L3("parent_key: " << blk.prev_id); LOG_PRINT_L3("parent_key: " << blk.prev_id);
throw0(DB_ERROR("Failed to get top block hash to check for new block's parent")); throw0(DB_ERROR("Failed to get top block hash to check for new block's parent"));
} }
uint64_t parent_height = parent_h; uint32_t parent_height = parent_h;
if (parent_height != m_height - 1) if (parent_height != m_height - 1)
throw0(BLOCK_PARENT_DNE("Top block is not new block's parent")); throw0(BLOCK_PARENT_DNE("Top block is not new block's parent"));
} }
Dbt_copy<uint64_t> key(m_height); Dbt_copy<uint32_t> key(m_height);
Dbt_copy<blobdata> blob(block_to_blob(blk)); Dbt_copy<blobdata> blob(block_to_blob(blk));
auto res = m_blocks->put(m_write_txn, &key, &blob, DB_APPEND); auto res = m_blocks->put(*m_write_txn, &key, &blob, 0);
if (res) if (res)
throw0(DB_ERROR(std::string("Failed to add block blob to db transaction: "))); throw0(DB_ERROR("Failed to add block blob to db transaction."));
Dbt_copy<size_t> sz(block_size); Dbt_copy<size_t> sz(block_size);
if (mdb_put(*m_write_txn, m_block_sizes, &key, &sz, DB_APPEND)) if (m_block_sizes->put(*m_write_txn, &key, &sz, 0))
throw0(DB_ERROR("Failed to add block size to db transaction")); throw0(DB_ERROR("Failed to add block size to db transaction."));
Dbt_copy<uint64_t> ts(blk.timestamp); Dbt_copy<uint64_t> ts(blk.timestamp);
if (m_block_timestamps->put(m_write_txn, &key, &ts, DB_APPEND)) if (m_block_timestamps->put(*m_write_txn, &key, &ts, 0))
throw0(DB_ERROR("Failed to add block timestamp to db transaction")); throw0(DB_ERROR("Failed to add block timestamp to db transaction."));
Dbt_copy<difficulty_type> diff(cumulative_difficulty); Dbt_copy<difficulty_type> diff(cumulative_difficulty);
if (m_block_diffs->put(m_write_txn, &key, &diff, DB_APPEND)) if (m_block_diffs->put(*m_write_txn, &key, &diff, 0))
throw0(DB_ERROR("Failed to add block cumulative difficulty to db transaction")); throw0(DB_ERROR("Failed to add block cumulative difficulty to db transaction."));
Dbt_copy<uint64_t> coinsgen(coins_generated); Dbt_copy<uint64_t> coinsgen(coins_generated);
if (m_block_coins->put(m_write_txn, &key, &coinsgen, DB_APPEND)) if (m_block_coins->put(*m_write_txn, &key, &coinsgen, 0))
throw0(DB_ERROR("Failed to add block total generated coins to db transaction")); throw0(DB_ERROR("Failed to add block total generated coins to db transaction."));
if (m_block_heights->put(m_write_txn, &val_h, &key, DB_APPEND)) if (m_block_heights->put(*m_write_txn, &val_h, &key, 0))
throw0(DB_ERROR("Failed to add block height by hash to db transaction")); throw0(DB_ERROR("Failed to add block height by hash to db transaction."));
if (m_block_hashes->put(m_write_txn, &key, &val_h, DB_APPEND)) if (m_block_hashes->put(*m_write_txn, &key, &val_h, 0))
throw0(DB_ERROR("Failed to add block hash to db transaction")); throw0(DB_ERROR("Failed to add block hash to db transaction."));
} }
void BlockchainBDB::remove_block() void BlockchainBDB::remove_block()
@ -230,33 +232,33 @@ void BlockchainBDB::remove_block()
LOG_PRINT_L3("BlockchainBDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
check_open(); check_open();
if (m_height == 0) if (m_height <= 1)
throw0(BLOCK_DNE ("Attempting to remove block from an empty blockchain")); throw0(BLOCK_DNE ("Attempting to remove block from an empty blockchain"));
Dbt_copy<uint64_t> k(m_height - 1); Dbt_copy<uint32_t> k(m_height - 1);
Dbt_copy<uint64_t> h; Dbt_copy<crypto::hash> h;
if (m_block_hashes->get(m_write_txn, &k, &h, 0)) if (m_block_hashes->get(*m_write_txn, &k, &h, 0))
throw1(BLOCK_DNE("Attempting to remove block that's not in the db")); throw1(BLOCK_DNE("Attempting to remove block that's not in the db"));
if (m_blocks->del(m_write_txn, &k, 0)) if (m_blocks->del(*m_write_txn, &k, 0))
throw1(DB_ERROR("Failed to add removal of block to db transaction")); throw1(DB_ERROR("Failed to add removal of block to db transaction"));
if (m_block_sizes->del(m_write_txn, &k, 0)) if (m_block_sizes->del(*m_write_txn, &k, 0))
throw1(DB_ERROR("Failed to add removal of block size to db transaction")); throw1(DB_ERROR("Failed to add removal of block size to db transaction"));
if (m_block_diffs->del(m_write_txn, &k, 0)) if (m_block_diffs->del(*m_write_txn, &k, 0))
throw1(DB_ERROR("Failed to add removal of block cumulative difficulty to db transaction")); throw1(DB_ERROR("Failed to add removal of block cumulative difficulty to db transaction"));
if (m_block_coins->del(m_write_txn, &k, 0)) if (m_block_coins->del(*m_write_txn, &k, 0))
throw1(DB_ERROR("Failed to add removal of block total generated coins to db transaction")); throw1(DB_ERROR("Failed to add removal of block total generated coins to db transaction"));
if (m_block_timestamps->del(m_write_txn, &k, 0)) if (m_block_timestamps->del(*m_write_txn, &k, 0))
throw1(DB_ERROR("Failed to add removal of block timestamp to db transaction")); throw1(DB_ERROR("Failed to add removal of block timestamp to db transaction"));
if (m_block_heights->del(m_write_txn, &h, 0)) if (m_block_heights->del(*m_write_txn, &h, 0))
throw1(DB_ERROR("Failed to add removal of block height by hash to db transaction")); throw1(DB_ERROR("Failed to add removal of block height by hash to db transaction"));
if (m_block_hashes->del(m_write_txn, &k, 0)) if (m_block_hashes->del(*m_write_txn, &k, 0))
throw1(DB_ERROR("Failed to add removal of block hash to db transaction")); throw1(DB_ERROR("Failed to add removal of block hash to db transaction"));
} }
@ -267,19 +269,19 @@ void BlockchainBDB::add_transaction_data(const crypto::hash& blk_hash, const tra
Dbt_copy<crypto::hash> val_h(tx_hash); Dbt_copy<crypto::hash> val_h(tx_hash);
if (m_txs->exists(m_write_txn, &val_h, 0) == 0) if (m_txs->exists(*m_write_txn, &val_h, 0) == 0)
throw1(TX_EXISTS("Attempting to add transaction that's already in the db")); throw1(TX_EXISTS("Attempting to add transaction that's already in the db"));
Dbt_copy<blobdata> blob(tx_to_blob(tx)); Dbt_copy<blobdata> blob(tx_to_blob(tx));
if (m_txs->put(m_write_txn, &val_h, &blob, DB_APPEND)) if (m_txs->put(*m_write_txn, &val_h, &blob, 0))
throw0(DB_ERROR("Failed to add tx blob to db transaction")); throw0(DB_ERROR("Failed to add tx blob to db transaction"));
Dbt_copy<uint64_t> height(m_height); Dbt_copy<uint32_t> height(m_height);
if (m_tx_heights->put(m_write_txn, &val_h, &height, DB_APPEND)) if (m_tx_heights->put(*m_write_txn, &val_h, &height, 0))
throw0(DB_ERROR("Failed to add tx block height to db transaction")); throw0(DB_ERROR("Failed to add tx block height to db transaction"));
Dbt_copy<uint64_t> unlock_time(tx.unlock_time); Dbt_copy<uint64_t> unlock_time(tx.unlock_time);
if (m_tx_unlocks->put(m_write_txn, &val_h, &unlock_time, DB_APPEND)) if (m_tx_unlocks->put(*m_write_txn, &val_h, &unlock_time, 0))
throw0(DB_ERROR("Failed to add tx unlock time to db transaction")); throw0(DB_ERROR("Failed to add tx unlock time to db transaction"));
} }
@ -289,19 +291,19 @@ void BlockchainBDB::remove_transaction_data(const crypto::hash& tx_hash, const t
check_open(); check_open();
Dbt_copy<crypto::hash> val_h(tx_hash); Dbt_copy<crypto::hash> val_h(tx_hash);
if (m_txs->exists(m_write_txn, &val_h, 0)) if (m_txs->exists(*m_write_txn, &val_h, 0))
throw1(TX_DNE("Attempting to remove transaction that isn't in the db")); throw1(TX_DNE("Attempting to remove transaction that isn't in the db"));
if (m_txs->del(m_write_txn, &val_h, 0)) if (m_txs->del(*m_write_txn, &val_h, 0))
throw1(DB_ERROR("Failed to add removal of tx to db transaction")); throw1(DB_ERROR("Failed to add removal of tx to db transaction"));
if (m_tx_unlocks->del(m_write_txn, &val_h, 0)) if (m_tx_unlocks->del(*m_write_txn, &val_h, 0))
throw1(DB_ERROR("Failed to add removal of tx unlock time to db transaction")); throw1(DB_ERROR("Failed to add removal of tx unlock time to db transaction"));
if (m_tx_heights->del(m_write_txn, &val_h, 0)) if (m_tx_heights->del(*m_write_txn, &val_h, 0))
throw1(DB_ERROR("Failed to add removal of tx block height to db transaction")); throw1(DB_ERROR("Failed to add removal of tx block height to db transaction"));
remove_tx_outputs(tx_hash, tx); remove_tx_outputs(tx_hash, tx);
if (m_tx_outputs->del(m_write_txn, &val_h, 0)) if (m_tx_outputs->del(*m_write_txn, &val_h, 0))
throw1(DB_ERROR("Failed to add removal of tx outputs to db transaction")); throw1(DB_ERROR("Failed to add removal of tx outputs to db transaction"));
} }
@ -311,26 +313,26 @@ void BlockchainBDB::add_output(const crypto::hash& tx_hash, const tx_out& tx_out
LOG_PRINT_L3("BlockchainBDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
check_open(); check_open();
Dbt_copy<uint64_t> k(m_num_outputs); Dbt_copy<uint32_t> k(m_num_outputs);
Dbt_copy<crypto::hash> v(tx_hash); Dbt_copy<crypto::hash> v(tx_hash);
if (m_output_txs->put(m_write_txn, &k, &v, DB_APPEND)) if (m_output_txs->put(*m_write_txn, &k, &v, 0))
throw0(DB_ERROR("Failed to add output tx hash to db transaction")); throw0(DB_ERROR("Failed to add output tx hash to db transaction"));
if (m_tx_outputs->put(m_write_txn, &v, &k, DB_APPEND)) if (m_tx_outputs->put(*m_write_txn, &v, &k, 0))
throw0(DB_ERROR("Failed to add tx output index to db transaction")); throw0(DB_ERROR("Failed to add tx output index to db transaction"));
Dbt_copy<uint64_t> val_local_index(local_index); Dbt_copy<uint64_t> val_local_index(local_index);
if (m_output_indices->put(m_write_txn, &k, &val_local_index, DB_APPEND)) if (m_output_indices->put(*m_write_txn, &k, &val_local_index, 0))
throw0(DB_ERROR("Failed to add tx output index to db transaction")); throw0(DB_ERROR("Failed to add tx output index to db transaction"));
Dbt_copy<uint64_t> val_amount(tx_output.amount); Dbt_copy<uint64_t> val_amount(tx_output.amount);
if (auto result = m_output_amounts->put(m_write_txn, &val_amount, &k, DB_APPEND)) if (m_output_amounts->put(*m_write_txn, &val_amount, &k, 0))
throw0(DB_ERROR(std::string("Failed to add output amount to db transaction"))); throw0(DB_ERROR("Failed to add output amount to db transaction."));
if (tx_output.target.type() == typeid(txout_to_key)) if (tx_output.target.type() == typeid(txout_to_key))
{ {
Dbt_copy<crypto::public_key> val_pubkey(boost::get<txout_to_key>(tx_output.target).key); Dbt_copy<crypto::public_key> val_pubkey(boost::get<txout_to_key>(tx_output.target).key);
if (m_output_keys->put(m_write_txn, &k, &val_pubkey, DB_APPEND)) if (m_output_keys->put(*m_write_txn, &k, &val_pubkey, 0))
throw0(DB_ERROR("Failed to add output pubkey to db transaction")); throw0(DB_ERROR("Failed to add output pubkey to db transaction"));
} }
@ -341,12 +343,12 @@ void BlockchainBDB::remove_tx_outputs(const crypto::hash& tx_hash, const transac
{ {
LOG_PRINT_L3("BlockchainBDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
bdb_cur cur(m_write_txn, m_tx_outputs); bdb_cur cur(*m_write_txn, m_tx_outputs);
Dbt_copy<crypto::hash> k(tx_hash); Dbt_copy<crypto::hash> k(tx_hash);
Dbt_copy<uint64_t> v; Dbt_copy<uint32_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
{ {
throw0(DB_ERROR("Attempting to remove a tx's outputs, but none found.")); throw0(DB_ERROR("Attempting to remove a tx's outputs, but none found."));
@ -358,7 +360,7 @@ void BlockchainBDB::remove_tx_outputs(const crypto::hash& tx_hash, const transac
else else
{ {
db_recno_t num_elems = 0; db_recno_t num_elems = 0;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
for (uint64_t i = 0; i < num_elems; ++i) for (uint64_t i = 0; i < num_elems; ++i)
{ {
@ -366,7 +368,7 @@ void BlockchainBDB::remove_tx_outputs(const crypto::hash& tx_hash, const transac
remove_output(v, tx_output.amount); remove_output(v, tx_output.amount);
if (i < num_elems - 1) if (i < num_elems - 1)
{ {
(Dbc*)cur->get(&k, &v, DB_NEXT_DUP); cur->get(&k, &v, DB_NEXT_DUP);
} }
} }
} }
@ -386,9 +388,9 @@ void BlockchainBDB::remove_output(const uint64_t& out_index, const uint64_t amou
LOG_PRINT_L3("BlockchainBDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
check_open(); check_open();
Dbt_copy<uint64_t> k(out_index); Dbt_copy<uint32_t> k(out_index);
auto result = m_output_indices->del(m_write_txn, &k, 0); auto result = m_output_indices->del(*m_write_txn, &k, 0);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
{ {
LOG_PRINT_L0("Unexpected: global output index not found in m_output_indices"); LOG_PRINT_L0("Unexpected: global output index not found in m_output_indices");
@ -398,7 +400,7 @@ void BlockchainBDB::remove_output(const uint64_t& out_index, const uint64_t amou
throw1(DB_ERROR("Error adding removal of output tx index to db transaction")); throw1(DB_ERROR("Error adding removal of output tx index to db transaction"));
} }
result = m_output_txs->del(m_write_txn, &k, 0); result = m_output_txs->del(*m_write_txn, &k, 0);
// if (result != 0 && result != DB_NOTFOUND) // if (result != 0 && result != DB_NOTFOUND)
// throw1(DB_ERROR("Error adding removal of output tx hash to db transaction")); // throw1(DB_ERROR("Error adding removal of output tx hash to db transaction"));
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
@ -410,7 +412,7 @@ void BlockchainBDB::remove_output(const uint64_t& out_index, const uint64_t amou
throw1(DB_ERROR("Error adding removal of output tx hash to db transaction")); throw1(DB_ERROR("Error adding removal of output tx hash to db transaction"));
} }
result = m_output_keys->del(m_write_txn, &k, 0); result = m_output_keys->del(*m_write_txn, &k, 0);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
{ {
LOG_PRINT_L0("Unexpected: global output index not found in m_output_keys"); LOG_PRINT_L0("Unexpected: global output index not found in m_output_keys");
@ -428,19 +430,19 @@ void BlockchainBDB::remove_amount_output_index(const uint64_t amount, const uint
LOG_PRINT_L3("BlockchainBDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
check_open(); check_open();
bdb_cur cur(m_write_txn, m_output_amounts); bdb_cur cur(*m_write_txn, m_output_amounts);
Dbt_copy<uint64_t> k(amount); Dbt_copy<uint64_t> k(amount);
Dbt_copy<uint64_t> v; Dbt_copy<uint32_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found")); throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found"));
else if (result) else if (result)
throw0(DB_ERROR("DB error attempting to get an output")); throw0(DB_ERROR("DB error attempting to get an output"));
db_recno_t num_elems = 0; db_recno_t num_elems = 0;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
uint64_t amount_output_index = 0; uint64_t amount_output_index = 0;
uint64_t goi = 0; uint64_t goi = 0;
@ -454,13 +456,13 @@ void BlockchainBDB::remove_amount_output_index(const uint64_t amount, const uint
found_index = true; found_index = true;
break; break;
} }
(Dbc*)cur->get(&k, &v, DB_NEXT_DUP); cur->get(&k, &v, DB_NEXT_DUP);
} }
if (found_index) if (found_index)
{ {
// found the amount output index // found the amount output index
// now delete it // now delete it
result = (Dbc*)cur->del(0); result = cur->del(0);
if (result) if (result)
throw0(DB_ERROR(std::string("Error deleting amount output index ").append(boost::lexical_cast<std::string>(amount_output_index)).c_str())); throw0(DB_ERROR(std::string("Error deleting amount output index ").append(boost::lexical_cast<std::string>(amount_output_index)).c_str()));
} }
@ -478,12 +480,12 @@ void BlockchainBDB::add_spent_key(const crypto::key_image& k_image)
check_open(); check_open();
Dbt_copy<crypto::key_image> val_key(k_image); Dbt_copy<crypto::key_image> val_key(k_image);
if (m_spent_keys->exists(m_write_txn, &val_key, 0) == 0) if (m_spent_keys->exists(*m_write_txn, &val_key, 0) == 0)
throw1(KEY_IMAGE_EXISTS("Attempting to add spent key image that's already in the db")); throw1(KEY_IMAGE_EXISTS("Attempting to add spent key image that's already in the db"));
Dbt_copy<char> val('\0'); Dbt_copy<char> val('\0');
if (auto result = m_spent_keys->put(m_write_txn, &val_key, &val, DB_APPEND)) if (m_spent_keys->put(*m_write_txn, &val_key, &val, 0))
throw1(DB_ERROR(std::string("Error adding spent key image to db transaction: "))); throw1(DB_ERROR("Error adding spent key image to db transaction."));
} }
void BlockchainBDB::remove_spent_key(const crypto::key_image& k_image) void BlockchainBDB::remove_spent_key(const crypto::key_image& k_image)
@ -492,7 +494,7 @@ void BlockchainBDB::remove_spent_key(const crypto::key_image& k_image)
check_open(); check_open();
Dbt_copy<crypto::key_image> k(k_image); Dbt_copy<crypto::key_image> k(k_image);
auto result = m_spent_keys->del(m_write_txn, &k, 0); auto result = m_spent_keys->del(*m_write_txn, &k, 0);
if (result != 0 && result != DB_NOTFOUND) if (result != 0 && result != DB_NOTFOUND)
throw1(DB_ERROR("Error adding removal of key image to db transaction")); throw1(DB_ERROR("Error adding removal of key image to db transaction"));
} }
@ -532,23 +534,23 @@ uint64_t BlockchainBDB::get_output_global_index(const uint64_t& amount, const ui
bdb_cur cur(txn, m_output_amounts); bdb_cur cur(txn, m_output_amounts);
Dbt_copy<uint64_t> k(amount); Dbt_copy<uint64_t> k(amount);
Dbt_copy<uint64_t> v; Dbt_copy<uint32_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == MDB_NOTFOUND) if (result == DB_NOTFOUND)
throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found")); throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found"));
else if (result) else if (result)
throw0(DB_ERROR("DB error attempting to get an output")); throw0(DB_ERROR("DB error attempting to get an output"));
db_recno_t num_elems; db_recno_t num_elems;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
if (num_elems <= index) if (num_elems <= index)
throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but output not found")); throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but output not found"));
for (uint64_t i = 0; i < index; ++i) for (uint64_t i = 0; i < index; ++i)
{ {
(Dbc*)cur->get(&k, &v, DB_NEXT_DUP); cur->get(&k, &v, DB_NEXT_DUP);
} }
uint64_t glob_index = v; uint64_t glob_index = v;
@ -587,7 +589,7 @@ BlockchainBDB::BlockchainBDB(bool batch_transactions)
m_batch_transactions = batch_transactions; m_batch_transactions = batch_transactions;
m_write_txn = nullptr; m_write_txn = nullptr;
m_height = 0; m_height = 1;
} }
void BlockchainBDB::open(const std::string& filename) void BlockchainBDB::open(const std::string& filename)
@ -629,25 +631,25 @@ void BlockchainBDB::open(const std::string& filename)
m_env->txn_begin(NULL, txn, 0); m_env->txn_begin(NULL, txn, 0);
// create Dbs in the environment // create Dbs in the environment
m_blocks = new Db(m_env); m_blocks = new Db(m_env, 0);
m_block_heights = new Db(m_env); m_block_heights = new Db(m_env, 0);
m_block_hashes = new Db(m_env); m_block_hashes = new Db(m_env, 0);
m_block_timestamps = new Db(m_env); m_block_timestamps = new Db(m_env, 0);
m_block_sizes = new Db(m_env); m_block_sizes = new Db(m_env, 0);
m_block_diffs = new Db(m_env); m_block_diffs = new Db(m_env, 0);
m_block_coins = new Db(m_env); m_block_coins = new Db(m_env, 0);
m_txs = new Db(m_env); m_txs = new Db(m_env, 0);
m_tx_unlocks = new Db(m_env); m_tx_unlocks = new Db(m_env, 0);
m_tx_heights = new Db(m_env); m_tx_heights = new Db(m_env, 0);
m_tx_outputs = new Db(m_env); m_tx_outputs = new Db(m_env, 0);
m_output_txs = new Db(m_env); m_output_txs = new Db(m_env, 0);
m_output_indices = new Db(m_env); m_output_indices = new Db(m_env, 0);
m_output_amounts = new Db(m_env); m_output_amounts = new Db(m_env, 0);
m_output_keys = new Db(m_env); m_output_keys = new Db(m_env, 0);
m_spent_keys = new Db(m_env); m_spent_keys = new Db(m_env, 0);
// Tell DB about Dbs that need duplicate support // Tell DB about Dbs that need duplicate support
// Note: no need to tell about sorting, // Note: no need to tell about sorting,
@ -656,24 +658,16 @@ void BlockchainBDB::open(const std::string& filename)
m_output_amounts->set_flags(DB_DUP); m_output_amounts->set_flags(DB_DUP);
// Tell DB about fixed-size values. // Tell DB about fixed-size values.
m_block_heights->set_re_len(sizeof(uint64_t));
m_block_hashes->set_re_len(sizeof(crypto::hash)); m_block_hashes->set_re_len(sizeof(crypto::hash));
m_block_timestamps->set_re_len(sizeof(uint64_t)); m_block_timestamps->set_re_len(sizeof(uint64_t));
m_block_sizes->set_re_len(sizeof(size_t)); // should really store block size as uint64_t... m_block_sizes->set_re_len(sizeof(size_t)); // should really store block size as uint64_t...
m_block_diffs->set_re_len(sizeof(difficulty_type)); m_block_diffs->set_re_len(sizeof(difficulty_type));
m_block_coins->set_re_len(sizeof(uint64_t)); m_block_coins->set_re_len(sizeof(uint64_t));
m_tx_unlocks->set_re_len(sizeof(uint64_t)); m_output_txs->set_re_len(sizeof(crypto::hash));
m_tx_heights->set_re_len(sizeof(uint64_t));
m_tx_outputs->set_re_len(sizeof(uint64_t));
m_output_txs->set_re_len(sizeof(uint64_t));
m_output_indices->set_re_len(sizeof(uint64_t)); m_output_indices->set_re_len(sizeof(uint64_t));
m_output_amounts->set_re_len(sizeof(uint64_t));
m_output_keys->set_re_len(sizeof(crypto::public_key)); m_output_keys->set_re_len(sizeof(crypto::public_key));
m_spent_keys->set_re_len(sizeof(crypto::key_image));
//TODO: Find out if we need to do Db::set_flags(DB_RENUMBER) //TODO: Find out if we need to do Db::set_flags(DB_RENUMBER)
// for the RECNO databases. We shouldn't as we're only // for the RECNO databases. We shouldn't as we're only
// inserting/removing from the end, but we'll see. // inserting/removing from the end, but we'll see.
@ -685,15 +679,15 @@ void BlockchainBDB::open(const std::string& filename)
m_blocks->open(txn, BDB_BLOCKS, NULL, DB_RECNO, DB_CREATE, 0); m_blocks->open(txn, BDB_BLOCKS, NULL, DB_RECNO, DB_CREATE, 0);
m_block_timestamps->open(txn, BDB_BLOCK_TIMESTAMPS, NULL, DB_RECNO, DB_CREATE, 0); m_block_timestamps->open(txn, BDB_BLOCK_TIMESTAMPS, NULL, DB_RECNO, DB_CREATE, 0);
m_block_heights->open(txn, BDB_BLOCK_HEIGHTS, NULL, DB_RECNO, DB_CREATE, 0); m_block_heights->open(txn, BDB_BLOCK_HEIGHTS, NULL, DB_HASH, DB_CREATE, 0);
m_block_hashes->open(txn, BDB_BLOCK_HASHES, NULL, DB_RECNO, DB_CREATE, 0); m_block_hashes->open(txn, BDB_BLOCK_HASHES, NULL, DB_RECNO, DB_CREATE, 0);
m_block_sizes->open(txn, BDB_BLOCK_SIZES, NULL, DB_RECNO, DB_CREATE, 0); m_block_sizes->open(txn, BDB_BLOCK_SIZES, NULL, DB_RECNO, DB_CREATE, 0);
m_block_diffs->open(txn, BDB_BLOCK_DIFFS, NULL, DB_RECNO, DB_CREATE, 0); m_block_diffs->open(txn, BDB_BLOCK_DIFFS, NULL, DB_RECNO, DB_CREATE, 0);
m_block_coins->open(txn, BDB_BLOCK_COINS, NULL, DB_RECNO, DB_CREATE, 0); m_block_coins->open(txn, BDB_BLOCK_COINS, NULL, DB_RECNO, DB_CREATE, 0);
m_txs->open(txn, BDB_TXS, NULL, DB_RECNO, DB_CREATE, 0); m_txs->open(txn, BDB_TXS, NULL, DB_HASH, DB_CREATE, 0);
m_tx_unlocks->open(txn, BDB_TX_UNLOCKS, NULL, DB_RECNO, DB_CREATE, 0); m_tx_unlocks->open(txn, BDB_TX_UNLOCKS, NULL, DB_HASH, DB_CREATE, 0);
m_tx_heights->open(txn, BDB_TX_HEIGHTS, NULL, DB_RECNO, DB_CREATE, 0); m_tx_heights->open(txn, BDB_TX_HEIGHTS, NULL, DB_HASH, DB_CREATE, 0);
m_tx_outputs->open(txn, BDB_TX_OUTPUTS, NULL, DB_HASH, DB_CREATE, 0); m_tx_outputs->open(txn, BDB_TX_OUTPUTS, NULL, DB_HASH, DB_CREATE, 0);
m_output_txs->open(txn, BDB_OUTPUT_TXS, NULL, DB_RECNO, DB_CREATE, 0); m_output_txs->open(txn, BDB_OUTPUT_TXS, NULL, DB_RECNO, DB_CREATE, 0);
@ -701,7 +695,7 @@ void BlockchainBDB::open(const std::string& filename)
m_output_amounts->open(txn, BDB_OUTPUT_AMOUNTS, NULL, DB_HASH, DB_CREATE, 0); m_output_amounts->open(txn, BDB_OUTPUT_AMOUNTS, NULL, DB_HASH, DB_CREATE, 0);
m_output_keys->open(txn, BDB_OUTPUT_KEYS, NULL, DB_RECNO, DB_CREATE, 0); m_output_keys->open(txn, BDB_OUTPUT_KEYS, NULL, DB_RECNO, DB_CREATE, 0);
m_spent_keys->open(txn, BDB_SPENT_KEYS, NULL, DB_RECNO, DB_CREATE, 0); m_spent_keys->open(txn, BDB_SPENT_KEYS, NULL, DB_HASH, DB_CREATE, 0);
DB_BTREE_STAT* stats; DB_BTREE_STAT* stats;
@ -709,15 +703,15 @@ void BlockchainBDB::open(const std::string& filename)
// to be returned. The flag should be set to 0 instead if this proves // to be returned. The flag should be set to 0 instead if this proves
// to be the case. // to be the case.
m_blocks->stat(txn, &stats, DB_FAST_STAT); m_blocks->stat(txn, &stats, DB_FAST_STAT);
m_height = stats->bt_nkeys; m_height = stats->bt_nkeys + 1;
delete stats; delete stats;
// see above comment about DB_FAST_STAT // see above comment about DB_FAST_STAT
m_output_indices->stat(txn, &stats, DB_FAST_STAT); m_output_indices->stat(txn, &stats, DB_FAST_STAT);
m_num_outputs = stats->bt_nkeys; m_num_outputs = stats->bt_nkeys + 1;
delete stats; delete stats;
txn->commit(); txn.commit();
} }
catch (const std::exception& e) catch (const std::exception& e)
{ {
@ -736,10 +730,11 @@ void BlockchainBDB::create(const std::string& filename)
void BlockchainBDB::close() void BlockchainBDB::close()
{ {
LOG_PRINT_L3("BlockchainLMDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
this->sync(); this->sync();
// FIXME: not yet thread safe!!! Use with care. // FIXME: not yet thread safe!!! Use with care.
m_open = false;
m_env->close(DB_FORCESYNC); m_env->close(DB_FORCESYNC);
} }
@ -750,29 +745,29 @@ void BlockchainBDB::sync()
try try
{ {
m_blocks->sync(); m_blocks->sync(0);
m_block_heights->sync(); m_block_heights->sync(0);
m_block_hashes->sync(); m_block_hashes->sync(0);
m_block_timestamps->sync(); m_block_timestamps->sync(0);
m_block_sizes->sync(); m_block_sizes->sync(0);
m_block_diffs->sync(); m_block_diffs->sync(0);
m_block_coins->sync(); m_block_coins->sync(0);
m_txs->sync(); m_txs->sync(0);
m_tx_unlocks->sync(); m_tx_unlocks->sync(0);
m_tx_heights->sync(); m_tx_heights->sync(0);
m_tx_outputs->sync(); m_tx_outputs->sync(0);
m_output_txs->sync(); m_output_txs->sync(0);
m_output_indices->sync(); m_output_indices->sync(0);
m_output_amounts->sync(); m_output_amounts->sync(0);
m_output_keys->sync(); m_output_keys->sync(0);
m_spent_keys->sync(); m_spent_keys->sync(0);
} }
catch (const std::exception& e) catch (const std::exception& e)
{ {
throw0(DB_ERROR(std::string("Failed to sync database: ").append(e.what()))); throw0(DB_ERROR(std::string("Failed to sync database: ").append(e.what()).c_str()));
} }
} }
@ -790,56 +785,69 @@ std::vector<std::string> BlockchainBDB::get_filenames() const
std::vector<std::string> filenames; std::vector<std::string> filenames;
char *fname, *dbname; char *fname, *dbname;
const char **pfname, **pdbname;
m_blocks->get_dbname(&fname, &dbname); pfname = (const char **)&fname;
pdbname = (const char **)&dbname;
m_blocks->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_block_heights->get_dbname(&fname, &dbname); m_block_heights->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_block_hashes->get_dbname(&fname, &dbname); m_block_hashes->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_block_timestamps->get_dbname(&fname, &dbname); m_block_timestamps->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_block_sizes->get_dbname(&fname, &dbname); m_block_sizes->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_block_diffs->get_dbname(&fname, &dbname); m_block_diffs->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_block_coins->get_dbname(&fname, &dbname); m_block_coins->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_txs->get_dbname(&fname, &dbname); m_txs->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_tx_unlocks->get_dbname(&fname, &dbname); m_tx_unlocks->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_tx_heights->get_dbname(&fname, &dbname); m_tx_heights->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_tx_outputs->get_dbname(&fname, &dbname); m_tx_outputs->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_output_txs->get_dbname(&fname, &dbname); m_output_txs->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_output_indices->get_dbname(&fname, &dbname); m_output_indices->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_output_amounts->get_dbname(&fname, &dbname); m_output_amounts->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_output_keys->get_dbname(&fname, &dbname); m_output_keys->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
m_spent_keys->get_dbname(&fname, &dbname); m_spent_keys->get_dbname(pfname, pdbname);
filenames.push_back(fname); filenames.push_back(fname);
return filenames; std::vector<std::string> full_paths;
for (auto& filename : filenames)
{
boost::filesystem::path p(m_folder);
p /= filename;
full_paths.push_back(p.string());
}
return full_paths;
} }
std::string BlockchainBDB::get_db_name() const std::string BlockchainBDB::get_db_name() const
@ -910,13 +918,14 @@ uint64_t BlockchainBDB::get_block_height(const crypto::hash& h) const
Dbt_copy<uint64_t> result; Dbt_copy<uint64_t> result;
auto get_result = m_block_heights->get(txn, &key, &result, 0); auto get_result = m_block_heights->get(txn, &key, &result, 0);
if (get_result == MDB_NOTFOUND) if (get_result == DB_NOTFOUND)
throw1(BLOCK_DNE("Attempted to retrieve non-existent block height")); throw1(BLOCK_DNE("Attempted to retrieve non-existent block height"));
else if (get_result) else if (get_result)
throw0(DB_ERROR("Error attempting to retrieve a block height from the db")); throw0(DB_ERROR("Error attempting to retrieve a block height from the db"));
txn.commit(); txn.commit();
return result;
return (uint64_t)result - 1;
} }
block_header BlockchainBDB::get_block_header(const crypto::hash& h) const block_header BlockchainBDB::get_block_header(const crypto::hash& h) const
@ -937,10 +946,10 @@ block BlockchainBDB::get_block_from_height(const uint64_t& height) const
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> key(height); Dbt_copy<uint32_t> key(height + 1);
Dbt_safe result; Dbt_safe result;
auto get_result = mdb_get(txn, m_blocks, &key, &result); auto get_result = m_blocks->get(txn, &key, &result, 0);
if (get_result == MDB_NOTFOUND) if (get_result == DB_NOTFOUND)
{ {
throw0(DB_ERROR(std::string("Attempt to get block from height ").append(boost::lexical_cast<std::string>(height)).append(" failed -- block not in db").c_str())); throw0(DB_ERROR(std::string("Attempt to get block from height ").append(boost::lexical_cast<std::string>(height)).append(" failed -- block not in db").c_str()));
} }
@ -968,7 +977,7 @@ uint64_t BlockchainBDB::get_block_timestamp(const uint64_t& height) const
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> key(height); Dbt_copy<uint32_t> key(height + 1);
Dbt_copy<uint64_t> result; Dbt_copy<uint64_t> result;
auto get_result = m_block_timestamps->get(txn, &key, &result, 0); auto get_result = m_block_timestamps->get(txn, &key, &result, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
@ -988,7 +997,7 @@ uint64_t BlockchainBDB::get_top_block_timestamp() const
check_open(); check_open();
// if no blocks, return 0 // if no blocks, return 0
if (m_height == 0) if (m_height <= 0)
{ {
return 0; return 0;
} }
@ -1005,7 +1014,7 @@ size_t BlockchainBDB::get_block_size(const uint64_t& height) const
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> key(height); Dbt_copy<uint32_t> key(height + 1);
Dbt_copy<size_t> result; Dbt_copy<size_t> result;
auto get_result = m_block_sizes->get(txn, &key, &result, 0); auto get_result = m_block_sizes->get(txn, &key, &result, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
@ -1028,7 +1037,7 @@ difficulty_type BlockchainBDB::get_block_cumulative_difficulty(const uint64_t& h
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> key(height); Dbt_copy<uint32_t> key(height + 1);
Dbt_copy<difficulty_type> result; Dbt_copy<difficulty_type> result;
auto get_result = m_block_diffs->get(txn, &key, &result, 0); auto get_result = m_block_diffs->get(txn, &key, &result, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
@ -1068,7 +1077,7 @@ uint64_t BlockchainBDB::get_block_already_generated_coins(const uint64_t& height
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> key(height); Dbt_copy<uint32_t> key(height + 1);
Dbt_copy<uint64_t> result; Dbt_copy<uint64_t> result;
auto get_result = m_block_coins->get(txn, &key, &result, 0); auto get_result = m_block_coins->get(txn, &key, &result, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
@ -1091,7 +1100,7 @@ crypto::hash BlockchainBDB::get_block_hash_from_height(const uint64_t& height) c
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> key(height); Dbt_copy<uint32_t> key(height + 1);
Dbt_copy<crypto::hash> result; Dbt_copy<crypto::hash> result;
auto get_result = m_block_hashes->get(txn, &key, &result, 0); auto get_result = m_block_hashes->get(txn, &key, &result, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
@ -1099,8 +1108,7 @@ crypto::hash BlockchainBDB::get_block_hash_from_height(const uint64_t& height) c
throw0(BLOCK_DNE(std::string("Attempt to get hash from height ").append(boost::lexical_cast<std::string>(height)).append(" failed -- hash not in db").c_str())); throw0(BLOCK_DNE(std::string("Attempt to get hash from height ").append(boost::lexical_cast<std::string>(height)).append(" failed -- hash not in db").c_str()));
} }
else if (get_result) else if (get_result)
throw0(DB_ERROR(std::string("Error attempting to retrieve a block hash from the db: "). throw0(DB_ERROR("Error attempting to retrieve a block hash from the db."));
append(mdb_strerror(get_result)).c_str()));
txn.commit(); txn.commit();
return result; return result;
@ -1165,7 +1173,7 @@ uint64_t BlockchainBDB::height() const
LOG_PRINT_L3("BlockchainBDB::" << __func__); LOG_PRINT_L3("BlockchainBDB::" << __func__);
check_open(); check_open();
return m_height; return m_height - 1;
} }
bool BlockchainBDB::tx_exists(const crypto::hash& h) const bool BlockchainBDB::tx_exists(const crypto::hash& h) const
@ -1302,7 +1310,7 @@ uint64_t BlockchainBDB::get_tx_block_height(const crypto::hash& h) const
txn.commit(); txn.commit();
return result; return (uint64_t)result - 1;
} }
//FIXME: make sure the random method used here is appropriate //FIXME: make sure the random method used here is appropriate
@ -1331,7 +1339,7 @@ uint64_t BlockchainBDB::get_num_outputs(const uint64_t& amount) const
Dbt_copy<uint64_t> k(amount); Dbt_copy<uint64_t> k(amount);
Dbt_copy<uint64_t> v; Dbt_copy<uint64_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
{ {
return 0; return 0;
@ -1339,8 +1347,8 @@ uint64_t BlockchainBDB::get_num_outputs(const uint64_t& amount) const
else if (result) else if (result)
throw0(DB_ERROR("DB error attempting to get number of outputs of an amount")); throw0(DB_ERROR("DB error attempting to get number of outputs of an amount"));
size_t num_elems = 0; db_recno_t num_elems = 0;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
txn.commit(); txn.commit();
@ -1358,7 +1366,7 @@ crypto::public_key BlockchainBDB::get_output_key(const uint64_t& amount, const u
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> k(glob_index); Dbt_copy<uint32_t> k(glob_index);
Dbt_copy<crypto::public_key> v; Dbt_copy<crypto::public_key> v;
auto get_result = m_output_keys->get(txn, &k, &v, 0); auto get_result = m_output_keys->get(txn, &k, &v, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
@ -1394,7 +1402,7 @@ tx_out_index BlockchainBDB::get_output_tx_and_index_from_global(const uint64_t&
if (m_env->txn_begin(NULL, txn, 0)) if (m_env->txn_begin(NULL, txn, 0))
throw0(DB_ERROR("Failed to create a transaction for the db")); throw0(DB_ERROR("Failed to create a transaction for the db"));
Dbt_copy<uint64_t> k(index); Dbt_copy<uint32_t> k(index);
Dbt_copy<crypto::hash > v; Dbt_copy<crypto::hash > v;
auto get_result = m_output_txs->get(txn, &k, &v, 0); auto get_result = m_output_txs->get(txn, &k, &v, 0);
@ -1405,7 +1413,7 @@ tx_out_index BlockchainBDB::get_output_tx_and_index_from_global(const uint64_t&
crypto::hash tx_hash = v; crypto::hash tx_hash = v;
Dbt_copy<tx_out_index> result; Dbt_copy<uint64_t> result;
get_result = m_output_indices->get(txn, &k, &result, 0); get_result = m_output_indices->get(txn, &k, &result, 0);
if (get_result == DB_NOTFOUND) if (get_result == DB_NOTFOUND)
throw1(OUTPUT_DNE("output with given index not in db")); throw1(OUTPUT_DNE("output with given index not in db"));
@ -1431,21 +1439,21 @@ tx_out_index BlockchainBDB::get_output_tx_and_index(const uint64_t& amount, cons
Dbt_copy<uint64_t> k(amount); Dbt_copy<uint64_t> k(amount);
Dbt_copy<uint64_t> v; Dbt_copy<uint64_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found")); throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found"));
else if (result) else if (result)
throw0(DB_ERROR("DB error attempting to get an output")); throw0(DB_ERROR("DB error attempting to get an output"));
size_t num_elems = 0; db_recno_t num_elems = 0;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
if (num_elems <= index) if (num_elems <= index)
throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but output not found")); throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but output not found"));
for (uint64_t i = 0; i < index; ++i) for (uint64_t i = 0; i < index; ++i)
{ {
(Dbc*)cur->get(&k, &v, DB_NEXT_DUP); cur->get(&k, &v, DB_NEXT_DUP);
} }
uint64_t glob_index = v; uint64_t glob_index = v;
@ -1471,19 +1479,19 @@ std::vector<uint64_t> BlockchainBDB::get_tx_output_indices(const crypto::hash& h
Dbt_copy<crypto::hash> k(h); Dbt_copy<crypto::hash> k(h);
Dbt_copy<uint64_t> v; Dbt_copy<uint64_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
throw1(OUTPUT_DNE("Attempting to get an output by tx hash and tx index, but output not found")); throw1(OUTPUT_DNE("Attempting to get an output by tx hash and tx index, but output not found"));
else if (result) else if (result)
throw0(DB_ERROR("DB error attempting to get an output")); throw0(DB_ERROR("DB error attempting to get an output"));
size_t num_elems = 0; db_recno_t num_elems = 0;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
for (uint64_t i = 0; i < num_elems; ++i) for (uint64_t i = 0; i < num_elems; ++i)
{ {
index_vec.push_back(v); index_vec.push_back(v);
(Dbc*)cur->get(&k, &v, DB_NEXT_DUP); cur->get(&k, &v, DB_NEXT_DUP);
} }
cur.close(); cur.close();
@ -1522,14 +1530,14 @@ std::vector<uint64_t> BlockchainBDB::get_tx_amount_output_indices(const crypto::
Dbt_copy<uint64_t> k(amount); Dbt_copy<uint64_t> k(amount);
Dbt_copy<uint64_t> v; Dbt_copy<uint64_t> v;
auto result = (Dbc*)cur->get(&k, &v, DB_SET); auto result = cur->get(&k, &v, DB_SET);
if (result == DB_NOTFOUND) if (result == DB_NOTFOUND)
throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found")); throw1(OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found"));
else if (result) else if (result)
throw0(DB_ERROR("DB error attempting to get an output")); throw0(DB_ERROR("DB error attempting to get an output"));
size_t num_elems = 0; db_recno_t num_elems = 0;
(Dbc*)cur->count(&num_elems, 0); cur->count(&num_elems, 0);
uint64_t amount_output_index = 0; uint64_t amount_output_index = 0;
uint64_t output_index = 0; uint64_t output_index = 0;
@ -1543,7 +1551,7 @@ std::vector<uint64_t> BlockchainBDB::get_tx_amount_output_indices(const crypto::
found_index = true; found_index = true;
break; break;
} }
(Dbc*)cur->get(&k, &v, DB_NEXT_DUP); cur->get(&k, &v, DB_NEXT_DUP);
} }
if (found_index) if (found_index)
{ {
@ -1643,16 +1651,17 @@ uint64_t BlockchainBDB::add_block( const block& blk
txn.commit(); txn.commit();
TIME_MEASURE_FINISH(time1); TIME_MEASURE_FINISH(time1);
time_commit1 += time1; time_commit1 += time1;
}
} }
catch (...) catch (const std::exception& e)
{ {
m_num_outputs = num_outputs; m_num_outputs = num_outputs;
m_write_txn = NULL; m_write_txn = NULL;
throw; throw0(DB_ERROR(std::string("Error adding block: ").append(e.what()).c_str()));
} }
return ++m_height; m_height++;
return m_height - 1;
} }
void BlockchainBDB::pop_block(block& blk, std::vector<transaction>& txs) void BlockchainBDB::pop_block(block& blk, std::vector<transaction>& txs)

6
src/blockchain_db/berkeleydb/db_bdb.h
View file

@ -49,7 +49,7 @@ struct bdb_txn_safe
message = "Failed to commit a transaction to the db"; message = "Failed to commit a transaction to the db";
} }
if (txn->commit()) if (m_txn->commit(0))
{ {
m_txn = NULL; m_txn = NULL;
LOG_PRINT_L0(message); LOG_PRINT_L0(message);
@ -103,6 +103,8 @@ public:
virtual std::vector<std::string> get_filenames() const; virtual std::vector<std::string> get_filenames() const;
virtual std::string get_db_name() const;
virtual bool lock(); virtual bool lock();
virtual void unlock(); virtual void unlock();
@ -279,7 +281,7 @@ private:
uint64_t m_height; uint64_t m_height;
uint64_t m_num_outputs; uint64_t m_num_outputs;
std::string m_folder; std::string m_folder;
txn_safe m_write_txn; // may point to either a short-lived txn or a batch txn bdb_txn_safe *m_write_txn;
bool m_batch_transactions; // support for batch transactions bool m_batch_transactions; // support for batch transactions
}; };

28
tests/unit_tests/BlockchainDB.cpp
View file

@ -30,6 +30,8 @@
#include <boost/algorithm/string/predicate.hpp> #include <boost/algorithm/string/predicate.hpp>
#include <cstdio> #include <cstdio>
#include <iostream> #include <iostream>
#include <chrono>
#include <thread>
#include "gtest/gtest.h" #include "gtest/gtest.h"
@ -88,6 +90,7 @@ bool compare_blocks(const block& a, const block& b)
return hash_a == hash_b; return hash_a == hash_b;
} }
/*
void print_block(const block& blk, const std::string& prefix = "") void print_block(const block& blk, const std::string& prefix = "")
{ {
std::cerr << prefix << ": " << std::endl std::cerr << prefix << ": " << std::endl
@ -106,6 +109,7 @@ bool compare_txs(const transaction& a, const transaction& b)
return ab == bb; return ab == bb;
} }
*/
// convert hex string to string that has values based on that hex // convert hex string to string that has values based on that hex
// thankfully should automatically ignore null-terminator. // thankfully should automatically ignore null-terminator.
@ -173,20 +177,29 @@ protected:
} }
~BlockchainDBTest() { ~BlockchainDBTest() {
auto files = m_db->get_filenames();
delete m_db; delete m_db;
remove_files(files); remove_files();
} }
BlockchainDB* m_db; BlockchainDB* m_db;
std::string m_prefix; std::string m_prefix;
std::vector<block> m_blocks; std::vector<block> m_blocks;
std::vector<std::vector<transaction> > m_txs; std::vector<std::vector<transaction> > m_txs;
std::vector<std::string> m_filenames;
void remove_files(const std::vector<std::string>& files) void get_filenames()
{
m_filenames = m_db->get_filenames();
for (auto& f : m_filenames)
{
std::cerr << "File created by test: " << f << std::endl;
}
}
void remove_files()
{ {
// remove each file the db created, making sure it starts with fname. // remove each file the db created, making sure it starts with fname.
for (auto& f : files) for (auto& f : m_filenames)
{ {
if (boost::starts_with(f, m_prefix)) if (boost::starts_with(f, m_prefix))
{ {
@ -199,7 +212,7 @@ protected:
} }
// remove directory if it still exists // remove directory if it still exists
boost::filesystem::remove(m_prefix); boost::filesystem::remove_all(m_prefix);
} }
void set_prefix(const std::string& prefix) void set_prefix(const std::string& prefix)
@ -222,6 +235,7 @@ TYPED_TEST(BlockchainDBTest, OpenAndClose)
// make sure open does not throw // make sure open does not throw
ASSERT_NO_THROW(this->m_db->open(fname)); ASSERT_NO_THROW(this->m_db->open(fname));
this->get_filenames();
// make sure open when already open DOES throw // make sure open when already open DOES throw
ASSERT_THROW(this->m_db->open(fname), DB_OPEN_FAILURE); ASSERT_THROW(this->m_db->open(fname), DB_OPEN_FAILURE);
@ -232,9 +246,11 @@ TYPED_TEST(BlockchainDBTest, OpenAndClose)
TYPED_TEST(BlockchainDBTest, AddBlock) TYPED_TEST(BlockchainDBTest, AddBlock)
{ {
std::string fname(tmpnam(NULL)); std::string fname(tmpnam(NULL));
this->set_prefix(fname);
// make sure open does not throw // make sure open does not throw
ASSERT_NO_THROW(this->m_db->open(fname)); ASSERT_NO_THROW(this->m_db->open(fname));
this->get_filenames();
// adding a block with no parent in the blockchain should throw. // adding a block with no parent in the blockchain should throw.
// note: this shouldn't be possible, but is a good (and cheap) failsafe. // note: this shouldn't be possible, but is a good (and cheap) failsafe.
@ -273,9 +289,11 @@ TYPED_TEST(BlockchainDBTest, AddBlock)
TYPED_TEST(BlockchainDBTest, RetrieveBlockData) TYPED_TEST(BlockchainDBTest, RetrieveBlockData)
{ {
std::string fname(tmpnam(NULL)); std::string fname(tmpnam(NULL));
this->set_prefix(fname);
// make sure open does not throw // make sure open does not throw
ASSERT_NO_THROW(this->m_db->open(fname)); ASSERT_NO_THROW(this->m_db->open(fname));
this->get_filenames();
ASSERT_NO_THROW(this->m_db->add_block(this->m_blocks[0], t_sizes[0], t_diffs[0], t_coins[0], this->m_txs[0])); ASSERT_NO_THROW(this->m_db->add_block(this->m_blocks[0], t_sizes[0], t_diffs[0], t_coins[0], this->m_txs[0]));