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Schema update: tx_indices - consolidate the tx subdbs from 5 to 3

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release-v0.4.0.1
warptangent 8 years ago committed by Howard Chu
parent a2f518aa01
commit 9aadedb1d0
3 changed files with 56 additions and 75 deletions
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9
src/blockchain_db/blockchain_db.h
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@ -148,6 +148,15 @@ struct output_data_t
};
#pragma pack(pop)
#pragma pack(push, 1)
struct tx_data_t
{
uint64_t tx_index;
uint64_t unlock_time;
uint64_t height;
};
#pragma pack(pop)
/***********************************
* Exception Definitions
***********************************/

114
src/blockchain_db/lmdb/db_lmdb.cpp
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@ -157,8 +157,6 @@ const char* const LMDB_BLOCK_HEIGHTS = "block_heights";
const char* const LMDB_TXS = "txs";
const char* const LMDB_TX_INDICES = "tx_indices";
const char* const LMDB_TX_UNLOCKS = "tx_unlocks";
const char* const LMDB_TX_HEIGHTS = "tx_heights";
const char* const LMDB_TX_OUTPUTS = "tx_outputs";
const char* const LMDB_OUTPUT_TXS = "output_txs";
@ -627,8 +625,6 @@ uint64_t BlockchainLMDB::add_transaction_data(const crypto::hash& blk_hash, cons
CURSOR(txs)
CURSOR(tx_indices)
CURSOR(tx_heights)
CURSOR(tx_unlocks)
MDB_val_copy<uint64_t> val_tx_index(tx_index);
MDB_val_copy<crypto::hash> val_h(tx_hash);
@ -639,25 +635,22 @@ uint64_t BlockchainLMDB::add_transaction_data(const crypto::hash& blk_hash, cons
else if (result != MDB_NOTFOUND)
throw1(DB_ERROR(lmdb_error(std::string("Error checking if tx index exists for tx hash ") + epee::string_tools::pod_to_hex(tx_hash) + ": ", result).c_str()));
result = mdb_cursor_put(m_cur_tx_indices, &val_h, &val_tx_index, 0);
tx_data_t td;
td.tx_index = tx_index;
td.unlock_time = tx.unlock_time;
td.height = m_height;
MDB_val_copy<tx_data_t> tx_data(td);
result = mdb_cursor_put(m_cur_tx_indices, &val_h, &tx_data, 0);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to add tx index to db transaction: ", result).c_str()));
throw0(DB_ERROR(lmdb_error("Failed to add tx data to db transaction: ", result).c_str()));
MDB_val_copy<blobdata> blob(tx_to_blob(tx));
result = mdb_cursor_put(m_cur_txs, &val_tx_index, &blob, 0);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to add tx blob to db transaction: ", result).c_str()));
MDB_val_copy<uint64_t> height(m_height);
result = mdb_cursor_put(m_cur_tx_heights, &val_tx_index, &height, 0);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to add tx block height to db transaction: ", result).c_str()));
MDB_val_copy<uint64_t> unlock_time(tx.unlock_time);
result = mdb_cursor_put(m_cur_tx_unlocks, &val_tx_index, &unlock_time, 0);
if (result)
throw0(DB_ERROR(lmdb_error("Failed to add tx unlock time to db transaction: ", result).c_str()));
m_num_txs++;
return tx_index;
}
@ -670,18 +663,16 @@ void BlockchainLMDB::remove_transaction_data(const crypto::hash& tx_hash, const
check_open();
MDB_val_copy<crypto::hash> val_h(tx_hash);
MDB_val val_tx_index;
MDB_val v;
if (mdb_get(*m_write_txn, m_tx_indices, &val_h, &val_tx_index))
if (mdb_get(*m_write_txn, m_tx_indices, &val_h, &v))
throw1(TX_DNE("Attempting to remove transaction that isn't in the db"));
uint64_t tx_index = *(uint64_t*)val_tx_index.mv_data;
tx_data_t td = *(const tx_data_t*)v.mv_data;
uint64_t tx_index = td.tx_index;
MDB_val_copy<uint64_t> val_tx_index(tx_index);
if (mdb_del(*m_write_txn, m_txs, &val_tx_index, NULL))
throw1(DB_ERROR("Failed to add removal of tx to db transaction"));
if (mdb_del(*m_write_txn, m_tx_unlocks, &val_tx_index, NULL))
throw1(DB_ERROR("Failed to add removal of tx unlock time to db transaction"));
if (mdb_del(*m_write_txn, m_tx_heights, &val_tx_index, NULL))
throw1(DB_ERROR("Failed to add removal of tx block height to db transaction"));
remove_tx_outputs(tx_index, tx);
@ -1099,8 +1090,6 @@ void BlockchainLMDB::open(const std::string& filename, const int mdb_flags)
lmdb_db_open(txn, LMDB_TXS, MDB_INTEGERKEY | MDB_CREATE, m_txs, "Failed to open db handle for m_txs");
lmdb_db_open(txn, LMDB_TX_INDICES, MDB_CREATE, m_tx_indices, "Failed to open db handle for m_tx_indices");
lmdb_db_open(txn, LMDB_TX_UNLOCKS, MDB_INTEGERKEY | MDB_CREATE, m_tx_unlocks, "Failed to open db handle for m_tx_unlocks");
lmdb_db_open(txn, LMDB_TX_HEIGHTS, MDB_INTEGERKEY | MDB_CREATE, m_tx_heights, "Failed to open db handle for m_tx_heights");
lmdb_db_open(txn, LMDB_TX_OUTPUTS, MDB_INTEGERKEY | MDB_CREATE, m_tx_outputs, "Failed to open db handle for m_tx_outputs");
lmdb_db_open(txn, LMDB_OUTPUT_TXS, MDB_INTEGERKEY | MDB_CREATE, m_output_txs, "Failed to open db handle for m_output_txs");
@ -1265,8 +1254,6 @@ void BlockchainLMDB::reset()
mdb_drop(txn, m_block_info, 0);
mdb_drop(txn, m_block_heights, 0);
mdb_drop(txn, m_txs, 0);
mdb_drop(txn, m_tx_unlocks, 0);
mdb_drop(txn, m_tx_heights, 0);
mdb_drop(txn, m_tx_outputs, 0);
mdb_drop(txn, m_output_txs, 0);
mdb_drop(txn, m_output_indices, 0);
@ -1693,18 +1680,18 @@ bool BlockchainLMDB::tx_exists(const crypto::hash& h) const
RCURSOR(txs);
MDB_val_copy<crypto::hash> key(h);
MDB_val val_tx_index;
MDB_val result;
MDB_val v;
bool tx_found = false;
TIME_MEASURE_START(time1);
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &val_tx_index, MDB_SET);
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &v, MDB_SET);
if (get_result == 0)
tx_found = true;
else if (get_result != MDB_NOTFOUND)
throw0(DB_ERROR(lmdb_error(std::string("DB error attempting to fetch transaction index from hash ") + epee::string_tools::pod_to_hex(h) + ": ", get_result).c_str()));
get_result = mdb_cursor_get(m_cur_txs, &val_tx_index, &result, MDB_SET);
// This isn't needed as part of the check. we're not checking consistency of db.
// get_result = mdb_cursor_get(m_cur_txs, &val_tx_index, &result, MDB_SET);
TIME_MEASURE_FINISH(time1);
time_tx_exists += time1;
@ -1716,10 +1703,11 @@ bool BlockchainLMDB::tx_exists(const crypto::hash& h) const
return false;
}
if (get_result == MDB_NOTFOUND)
throw0(DB_ERROR(std::string("transaction with hash ").append(epee::string_tools::pod_to_hex(h)).append(" not found at index").c_str()));
else if (get_result)
throw0(DB_ERROR(lmdb_error(std::string("DB error attempting to fetch transaction ") + epee::string_tools::pod_to_hex(h) + " at index: ", get_result).c_str()));
// Below not needed due to above comment.
// if (get_result == MDB_NOTFOUND)
// throw0(DB_ERROR(std::string("transaction with hash ").append(epee::string_tools::pod_to_hex(h)).append(" not found at index").c_str()));
// else if (get_result)
// throw0(DB_ERROR(lmdb_error(std::string("DB error attempting to fetch transaction ") + epee::string_tools::pod_to_hex(h) + " at index: ", get_result).c_str()));
return true;
}
@ -1731,17 +1719,12 @@ bool BlockchainLMDB::tx_exists(const crypto::hash& h, uint64_t& tx_index) const
TXN_PREFIX_RDONLY();
const mdb_txn_cursors *m_cursors = m_write_txn ? &m_wcursors : &m_tinfo->m_ti_rcursors;
RCURSOR(tx_indices);
RCURSOR(txs);
MDB_val_copy<crypto::hash> key(h);
MDB_val val_tx_index;
MDB_val result;
MDB_val v;
TIME_MEASURE_START(time1);
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &val_tx_index, MDB_SET);
if (get_result == 0) {
get_result = mdb_cursor_get(m_cur_txs, &val_tx_index, &result, MDB_SET);
}
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &v, MDB_SET);
TIME_MEASURE_FINISH(time1);
time_tx_exists += time1;
@ -1755,8 +1738,10 @@ bool BlockchainLMDB::tx_exists(const crypto::hash& h, uint64_t& tx_index) const
else if (get_result)
throw0(DB_ERROR("DB error attempting to fetch transaction from hash"));
else
tx_index = *(uint64_t*)val_tx_index.mv_data;
{
tx_data_t td = *(const tx_data_t*)v.mv_data;
tx_index = td.tx_index;
}
return true;
}
@ -1768,24 +1753,17 @@ uint64_t BlockchainLMDB::get_tx_unlock_time(const crypto::hash& h) const
TXN_PREFIX_RDONLY();
const mdb_txn_cursors *m_cursors = m_write_txn ? &m_wcursors : &m_tinfo->m_ti_rcursors;
RCURSOR(tx_indices);
RCURSOR(tx_unlocks);
MDB_val_copy<crypto::hash> key(h);
MDB_val val_tx_index;
MDB_val result;
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &val_tx_index, MDB_SET);
if (get_result == MDB_NOTFOUND)
throw1(TX_DNE(lmdb_error(std::string("tx index with hash ") + epee::string_tools::pod_to_hex(h) + " not found in db: ", get_result).c_str()));
else if (get_result)
throw0(DB_ERROR(lmdb_error("DB error attempting to fetch tx index from hash: ", get_result).c_str()));
get_result = mdb_cursor_get(m_cur_tx_unlocks, &val_tx_index, &result, MDB_SET);
MDB_val v;
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &v, MDB_SET);
if (get_result == MDB_NOTFOUND)
throw1(TX_DNE(lmdb_error(std::string("tx unlock time with hash ") + epee::string_tools::pod_to_hex(h) + " not found in db: ", get_result).c_str()));
throw1(TX_DNE(lmdb_error(std::string("tx data with hash ") + epee::string_tools::pod_to_hex(h) + " not found in db: ", get_result).c_str()));
else if (get_result)
throw0(DB_ERROR(lmdb_error("DB error attempting to fetch tx unlock time from index: ", get_result).c_str()));
throw0(DB_ERROR(lmdb_error("DB error attempting to fetch tx data from hash: ", get_result).c_str()));
uint64_t ret = *(const uint64_t*)result.mv_data;
tx_data_t td = *(const tx_data_t*)v.mv_data;
uint64_t ret = td.unlock_time;
TXN_POSTFIX_RDONLY();
return ret;
}
@ -1801,11 +1779,16 @@ transaction BlockchainLMDB::get_tx(const crypto::hash& h) const
RCURSOR(txs);
MDB_val_copy<crypto::hash> key(h);
MDB_val val_tx_index;
MDB_val v;
MDB_val result;
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &val_tx_index, MDB_SET);
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &v, MDB_SET);
if (get_result == 0)
{
tx_data_t td = *(const tx_data_t*)v.mv_data;
uint64_t tx_index = td.tx_index;
MDB_val_copy<uint64_t> val_tx_index(tx_index);
get_result = mdb_cursor_get(m_cur_txs, &val_tx_index, &result, MDB_SET);
}
if (get_result == MDB_NOTFOUND)
throw1(TX_DNE(std::string("tx with hash ").append(epee::string_tools::pod_to_hex(h)).append(" not found in db").c_str()));
else if (get_result)
@ -1861,22 +1844,19 @@ uint64_t BlockchainLMDB::get_tx_block_height(const crypto::hash& h) const
TXN_PREFIX_RDONLY();
const mdb_txn_cursors *m_cursors = m_write_txn ? &m_wcursors : &m_tinfo->m_ti_rcursors;
RCURSOR(tx_indices);
RCURSOR(tx_heights);
MDB_val_copy<crypto::hash> key(h);
MDB_val val_tx_index;
MDB_val result;
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &val_tx_index, MDB_SET);
if (get_result == 0)
get_result = mdb_cursor_get(m_cur_tx_heights, &val_tx_index, &result, MDB_SET);
MDB_val v;
auto get_result = mdb_cursor_get(m_cur_tx_indices, &key, &v, MDB_SET);
if (get_result == MDB_NOTFOUND)
{
throw1(TX_DNE(std::string("tx height with hash ").append(epee::string_tools::pod_to_hex(h)).append(" not found in db").c_str()));
throw1(TX_DNE(std::string("tx_data_t with hash ").append(epee::string_tools::pod_to_hex(h)).append(" not found in db").c_str()));
}
else if (get_result)
throw0(DB_ERROR("DB error attempting to fetch tx height from hash"));
uint64_t ret = *(const uint64_t*)result.mv_data;
tx_data_t res = *(const tx_data_t *)v.mv_data;
uint64_t ret = res.height;
TXN_POSTFIX_RDONLY();
return ret;
}

8
src/blockchain_db/lmdb/db_lmdb.h
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@ -52,8 +52,6 @@ typedef struct mdb_txn_cursors
MDB_cursor *m_txc_txs;
MDB_cursor *m_txc_tx_indices;
MDB_cursor *m_txc_tx_heights;
MDB_cursor *m_txc_tx_unlocks;
MDB_cursor *m_txc_tx_outputs;
MDB_cursor *m_txc_spent_keys;
@ -70,8 +68,6 @@ typedef struct mdb_txn_cursors
#define m_cur_output_keys m_cursors->m_txc_output_keys
#define m_cur_txs m_cursors->m_txc_txs
#define m_cur_tx_indices m_cursors->m_txc_tx_indices
#define m_cur_tx_heights m_cursors->m_txc_tx_heights
#define m_cur_tx_unlocks m_cursors->m_txc_tx_unlocks
#define m_cur_tx_outputs m_cursors->m_txc_tx_outputs
#define m_cur_spent_keys m_cursors->m_txc_spent_keys
#define m_cur_hf_versions m_cursors->m_txc_hf_versions
@ -88,8 +84,6 @@ typedef struct mdb_rflags
bool m_rf_output_keys;
bool m_rf_txs;
bool m_rf_tx_indices;
bool m_rf_tx_heights;
bool m_rf_tx_unlocks;
bool m_rf_tx_outputs;
bool m_rf_spent_keys;
bool m_rf_hf_versions;
@ -368,8 +362,6 @@ private:
MDB_dbi m_txs;
MDB_dbi m_tx_indices;
MDB_dbi m_tx_unlocks;
MDB_dbi m_tx_heights;
MDB_dbi m_tx_outputs;
MDB_dbi m_output_txs;

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