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Adding block data to LMDB BlockchainDB coded 

Still needs testing (and need to write a few more unit tests), but
everything should be there.  Lots of unfortunate duplication,
but...well, I can't see a way around it using LMDB.

A couple of other minor changes in this commit, only slightly relevant.
This commit is contained in:
Thomas Winget 2014-10-23 19:47:36 -04:00 committed by warptangent
parent db00ce0173
commit a0af217d9a
3 changed files with 258 additions and 8 deletions
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218
src/cryptonote_core/BlockchainDB_impl/db_lmdb.cpp
View File

@ -42,6 +42,14 @@ const char* LMDB_BLOCK_SIZES = "block_sizes";
const char* LMDB_BLOCK_DIFFS = "block_diffs";
const char* LMDB_BLOCK_COINS = "block_coins";
const char* LMDB_TXS = "txs";
const char* LMDB_TX_HEIGHTS = "tx_heights";
const char* LMDB_TX_OUTPUTS = "tx_outputs";
const char* LMDB_OUTPUT_TXS = "output_txs";
const char* LMDB_OUTPUT_INDICES = "output_indices";
const char* LMDB_OUTPUT_AMOUNTS = "output_amounts";
const char* LMDB_OUTPUTS = "outputs";
const char* LMDB_OUTPUT_GINDICES = "output_gindices";
const char* LMDB_SPENT_KEYS = "spent_keys";
void BlockchainLMDB::add_block( const block& blk
, const size_t& block_size
@ -130,6 +138,42 @@ void BlockchainLMDB::remove_block()
void BlockchainLMDB::add_transaction_data(const crypto::hash& blk_hash, const transaction& tx)
{
check_open();
crypto::hash h = get_transaction_hash(tx);
MDB_val val_h;
val_h.mv_size = sizeof(crypto::hash);
val_h.mv_data = &h;
MDB_val unused;
if (mdb_get(*m_write_txn, m_txs, &val_h, &unused) == 0)
{
LOG_PRINT_L1("Attempting to add transaction that's already in the db");
throw TX_EXISTS("Attempting to add transaction that's already in the db");
}
auto bd = tx_to_blob(tx);
// const-correctness be trolling, yo
std::unique_ptr<char[]> bd_cpy(new char[bd.size()]);
memcpy(bd_cpy.get(), bd.data(), bd.size());
MDB_val blob;
blob.mv_size = bd.size();
blob.mv_data = bd_cpy.get();
if (mdb_put(*m_write_txn, m_txs, &val_h, &blob, 0))
{
LOG_PRINT_L0("Failed to add tx blob to db transaction");
throw DB_ERROR("Failed to add tx blob to db transaction");
}
MDB_val height;
height.mv_size = sizeof(uint64_t);
height.mv_data = &m_height;
if (mdb_put(*m_write_txn, m_tx_heights, &val_h, &height, 0))
{
LOG_PRINT_L0("Failed to add tx block height to db transaction");
throw DB_ERROR("Failed to add tx block height to db transaction");
}
}
void BlockchainLMDB::remove_transaction_data(const crypto::hash& tx_hash)
@ -140,6 +184,66 @@ 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)
{
check_open();
MDB_val k;
MDB_val v;
k.mv_size = sizeof(uint64_t);
k.mv_data = &m_num_outputs;
crypto::hash h_cpy = tx_hash;
v.mv_size = sizeof(crypto::hash);
v.mv_data = &h_cpy;
if (mdb_put(*m_write_txn, m_output_txs, &k, &v, 0))
{
LOG_PRINT_L0("Failed to add output tx hash to db transaction");
throw DB_ERROR("Failed to add output tx hash to db transaction");
}
if (mdb_put(*m_write_txn, m_tx_outputs, &v, &k, 0))
{
LOG_PRINT_L0("Failed to add tx output index to db transaction");
throw DB_ERROR("Failed to add tx output index to db transaction");
}
uint64_t index_cpy = local_index;
v.mv_size = sizeof(uint64_t);
v.mv_data = &index_cpy;
if (mdb_put(*m_write_txn, m_output_indices, &k, &v, 0))
{
LOG_PRINT_L0("Failed to add tx output index to db transaction");
throw DB_ERROR("Failed to add tx output index to db transaction");
}
uint64_t amount = tx_output.amount;
v.mv_size = sizeof(uint64_t);
v.mv_data = &amount;
if (mdb_put(*m_write_txn, m_output_amounts, &v, &k, 0))
{
LOG_PRINT_L0("Failed to add output amount to db transaction");
throw DB_ERROR("Failed to add output amount to db transaction");
}
blobdata b;
t_serializable_object_to_blob(tx_output, b);
/*
* use this later to deserialize
std::stringstream ss;
ss << tx_blob;
binary_archive<false> ba(ss);
bool r = ::serialization::serialize(ba, tx);
*/
v.mv_size = b.size();
v.mv_data = &b;
if (mdb_put(*m_write_txn, m_outputs, &k, &v, 0))
{
LOG_PRINT_L0("Failed to add output to db transaction");
throw DB_ERROR("Failed to add output to db transaction");
}
if (mdb_put(*m_write_txn, m_output_gindices, &v, &k, 0))
{
LOG_PRINT_L0("Failed to add output global index to db transaction");
throw DB_ERROR("Failed to add output global index to db transaction");
}
}
void BlockchainLMDB::remove_output(const tx_out& tx_output)
@ -150,6 +254,27 @@ void BlockchainLMDB::remove_output(const tx_out& tx_output)
void BlockchainLMDB::add_spent_key(const crypto::key_image& k_image)
{
check_open();
crypto::key_image key = k_image;
MDB_val val_key;
val_key.mv_size = sizeof(crypto::key_image);
val_key.mv_data = &key;
MDB_val unused;
if (mdb_get(*m_write_txn, m_spent_keys, &val_key, &unused) == 0)
{
LOG_PRINT_L1("Attempting to add spent key image that's already in the db");
throw KEY_IMAGE_EXISTS("Attempting to add spent key image that's already in the db");
}
char anything = '\0';
unused.mv_size = sizeof(char);
unused.mv_data = &anything;
if (mdb_put(*m_write_txn, m_spent_keys, &val_key, &unused, 0))
{
LOG_PRINT_L1("Error adding spent key image to db transaction");
throw DB_ERROR("Error adding spent key image to db transaction");
}
}
void BlockchainLMDB::remove_spent_key(const crypto::key_image& k_image)
@ -260,11 +385,54 @@ void BlockchainLMDB::open(const std::string& filename)
LOG_PRINT_L0("Failed to open db handle for m_block_coins");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_block_coins" );
}
if (mdb_dbi_open(txn, LMDB_TXS, MDB_CREATE, &m_txs))
{
LOG_PRINT_L0("Failed to open db handle for m_txs");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_txs" );
}
if (mdb_dbi_open(txn, LMDB_TX_HEIGHTS, MDB_CREATE, &m_tx_heights))
{
LOG_PRINT_L0("Failed to open db handle for m_tx_heights");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_tx_heights" );
}
if (mdb_dbi_open(txn, LMDB_TX_OUTPUTS, MDB_DUPSORT | MDB_CREATE, &m_tx_outputs))
{
LOG_PRINT_L0("Failed to open db handle for m_tx_outputs");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_tx_outputs" );
}
if (mdb_dbi_open(txn, LMDB_OUTPUT_TXS, MDB_INTEGERKEY | MDB_CREATE, &m_output_txs))
{
LOG_PRINT_L0("Failed to open db handle for m_output_txs");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_output_txs" );
}
if (mdb_dbi_open(txn, LMDB_OUTPUT_INDICES, MDB_INTEGERKEY | MDB_CREATE, &m_output_indices))
{
LOG_PRINT_L0("Failed to open db handle for m_output_indices");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_output_indices" );
}
if (mdb_dbi_open(txn, LMDB_OUTPUT_GINDICES, MDB_CREATE, &m_output_gindices))
{
LOG_PRINT_L0("Failed to open db handle for m_output_gindices");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_output_gindices" );
}
if (mdb_dbi_open(txn, LMDB_OUTPUT_AMOUNTS, MDB_INTEGERKEY | MDB_DUPSORT | MDB_CREATE, &m_output_amounts))
{
LOG_PRINT_L0("Failed to open db handle for m_output_amounts");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_output_amounts" );
}
if (mdb_dbi_open(txn, LMDB_OUTPUTS, MDB_INTEGERKEY | MDB_CREATE, &m_outputs))
{
LOG_PRINT_L0("Failed to open db handle for m_outputs");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_outputs" );
}
if (mdb_dbi_open(txn, LMDB_SPENT_KEYS, MDB_CREATE, &m_spent_keys))
{
LOG_PRINT_L0("Failed to open db handle for m_outputs");
throw DB_OPEN_FAILURE( "Failed to open db handle for m_outputs" );
}
// get and keep current height
MDB_stat db_stats;
@ -275,6 +443,14 @@ void BlockchainLMDB::open(const std::string& filename)
}
m_height = db_stats.ms_entries;
// get and keep current number of outputs
if (mdb_stat(txn, m_outputs, &db_stats))
{
LOG_PRINT_L0("Failed to query m_outputs");
throw DB_ERROR("Failed to query m_outputs");
}
m_num_outputs = db_stats.ms_entries;
// commit the transaction
txn.commit();
@ -347,6 +523,7 @@ bool BlockchainLMDB::block_exists(const crypto::hash& h)
auto get_result = mdb_get(txn, m_block_hashes, &key, &result);
if (get_result == MDB_NOTFOUND)
{
txn.commit();
LOG_PRINT_L1("Block with hash " << epee::string_tools::pod_to_hex(h) << "not found in db");
return false;
}
@ -356,6 +533,7 @@ bool BlockchainLMDB::block_exists(const crypto::hash& h)
throw DB_ERROR("DB error attempting to fetch block index from hash");
}
txn.commit();
return true;
}
@ -525,7 +703,8 @@ block BlockchainLMDB::get_top_block()
uint64_t BlockchainLMDB::height()
{
check_open();
return 0;
return m_height;
}
@ -610,6 +789,27 @@ std::vector<uint64_t> BlockchainLMDB::get_tx_output_indices(const crypto::hash&
bool BlockchainLMDB::has_key_image(const crypto::key_image& img)
{
check_open();
txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
{
LOG_PRINT_L0("Failed to create a transaction for the db");
throw DB_ERROR("Failed to create a transaction for the db");
}
crypto::key_image key = img;
MDB_val val_key;
val_key.mv_size = sizeof(crypto::key_image);
val_key.mv_data = &key;
MDB_val unused;
if (mdb_get(txn, m_spent_keys, &val_key, &unused) == 0)
{
txn.commit();
return true;
}
txn.commit();
return false;
}
@ -629,12 +829,20 @@ uint64_t BlockchainLMDB::add_block( const block& blk
}
m_write_txn = &txn;
BlockchainDB::add_block(blk, block_size, cumulative_difficulty, coins_generated, txs);
uint64_t num_outputs = m_num_outputs;
try
{
BlockchainDB::add_block(blk, block_size, cumulative_difficulty, coins_generated, txs);
txn.commit();
txn.commit();
}
catch (...)
{
m_num_outputs = num_outputs;
throw;
}
m_height++;
return m_height - 1;
return ++m_height;
}
} // namespace cryptonote

12
src/cryptonote_core/BlockchainDB_impl/db_lmdb.h
View File

@ -194,12 +194,20 @@ private:
MDB_dbi m_block_coins;
MDB_dbi m_txs;
MDB_dbi m_tx_heights;
MDB_dbi m_tx_outputs;
MDB_dbi m_spent;
MDB_dbi m_utxo;
MDB_dbi m_output_txs;
MDB_dbi m_output_indices;
MDB_dbi m_output_gindices;
MDB_dbi m_output_amounts;
MDB_dbi m_outputs;
MDB_dbi m_spent_keys;
bool m_open;
uint64_t m_height;
uint64_t m_num_outputs;
std::string m_folder;
txn_safe* m_write_txn;
};

36
src/cryptonote_core/blockchain_db.h
View File

@ -126,6 +126,8 @@
* TX_DNE
* TX_EXISTS
* OUTPUT_DNE
* OUTPUT_EXISTS
* KEY_IMAGE_EXISTS
*/
namespace cryptonote
@ -302,7 +304,7 @@ class OUTPUT_DNE : public std::exception
private:
std::string m;
public:
OUTPUT_DNE() : m("The transaction requested does not exist") { }
OUTPUT_DNE() : m("The output requested does not exist!") { }
OUTPUT_DNE(const char* s) : m(s) { }
virtual ~OUTPUT_DNE() { }
@ -313,6 +315,38 @@ class OUTPUT_DNE : public std::exception
}
};
class OUTPUT_EXISTS : public std::exception
{
private:
std::string m;
public:
OUTPUT_EXISTS() : m("The output to be added already exists!") { }
OUTPUT_EXISTS(const char* s) : m(s) { }
virtual ~OUTPUT_EXISTS() { }
const char* what() const throw()
{
return m.c_str();
}
};
class KEY_IMAGE_EXISTS : public std::exception
{
private:
std::string m;
public:
KEY_IMAGE_EXISTS() : m("The spent key image to be added already exists!") { }
KEY_IMAGE_EXISTS(const char* s) : m(s) { }
virtual ~KEY_IMAGE_EXISTS() { }
const char* what() const throw()
{
return m.c_str();
}
};
/***********************************
* End of Exception Definitions
***********************************/