Git-Mirrors/monero
1
0
Fork 0
mirror of https://github.com/monero-project/monero.git synced 2025-08-22 23:35:06 -04:00
Code Issues Projects Releases Packages Wiki Activity

hardfork: most state now saved to the DB

Browse source 
There will be a delay on first load of an existing blockchain
as it gets reparsed for this state data.
This commit is contained in:
moneromooo-monero 2015-09-20 18:41:38 +01:00
parent 0a54c3a553
commit 5b11a89a76
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
10 changed files with 537 additions and 258 deletions
Download patch file Download diff file Expand all files Collapse all files

124
src/blockchain_db/lmdb/db_lmdb.cpp
View file

@ -131,6 +131,15 @@ auto compare_uint64 = [](const MDB_val *a, const MDB_val *b)
else return 1;
};
auto compare_uint8 = [](const MDB_val *a, const MDB_val *b)
{
const uint8_t va = *(const uint8_t*)a->mv_data;
const uint8_t vb = *(const uint8_t*)b->mv_data;
if (va < vb) return -1;
else if (va == vb) return 0;
else return 1;
};
int compare_hash32(const MDB_val *a, const MDB_val *b)
{
uint32_t *va = (uint32_t*) a->mv_data;
@ -166,6 +175,9 @@ const char* const LMDB_OUTPUTS = "outputs";
const char* const LMDB_OUTPUT_GINDICES = "output_gindices";
const char* const LMDB_SPENT_KEYS = "spent_keys";
const char* const LMDB_HF_STARTING_HEIGHTS = "hf_starting_heights";
const char* const LMDB_HF_VERSIONS = "hf_versions";
inline void lmdb_db_open(MDB_txn* txn, const char* name, int flags, MDB_dbi& dbi, const std::string& error_string)
{
if (mdb_dbi_open(txn, name, flags, &dbi))
@ -1022,6 +1034,9 @@ void BlockchainLMDB::open(const std::string& filename, const int mdb_flags)
lmdb_db_open(txn, LMDB_SPENT_KEYS, MDB_CREATE, m_spent_keys, "Failed to open db handle for m_spent_keys");
lmdb_db_open(txn, LMDB_HF_STARTING_HEIGHTS, MDB_CREATE, m_hf_starting_heights, "Failed to open db handle for m_hf_starting_heights");
lmdb_db_open(txn, LMDB_HF_VERSIONS, MDB_CREATE, m_hf_versions, "Failed to open db handle for m_hf_versions");
mdb_set_dupsort(txn, m_output_amounts, compare_uint64);
mdb_set_dupsort(txn, m_tx_outputs, compare_uint64);
mdb_set_compare(txn, m_spent_keys, compare_hash32);
@ -1029,6 +1044,8 @@ void BlockchainLMDB::open(const std::string& filename, const int mdb_flags)
mdb_set_compare(txn, m_txs, compare_hash32);
mdb_set_compare(txn, m_tx_unlocks, compare_hash32);
mdb_set_compare(txn, m_tx_heights, compare_hash32);
mdb_set_compare(txn, m_hf_starting_heights, compare_uint8);
mdb_set_compare(txn, m_hf_versions, compare_uint64);
// get and keep current height
MDB_stat db_stats;
@ -2347,4 +2364,111 @@ void BlockchainLMDB::get_output_tx_and_index(const uint64_t& amount, const std::
LOG_PRINT_L3("db3: " << db3);
}
void BlockchainLMDB::set_hard_fork_starting_height(uint8_t version, uint64_t height)
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open();
mdb_txn_safe txn;
mdb_txn_safe* txn_ptr = &txn;
if (m_batch_active)
txn_ptr = m_write_txn;
else
{
if (mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
txn_ptr = &txn;
}
MDB_val_copy<uint8_t> val_key(version);
MDB_val_copy<uint64_t> val_value(height);
if (auto result = mdb_put(*txn_ptr, m_hf_starting_heights, &val_key, &val_value, 0))
throw1(DB_ERROR(std::string("Error adding hard fork starting height to db transaction: ").append(mdb_strerror(result)).c_str()));
if (!m_batch_active)
txn.commit();
}
uint64_t BlockchainLMDB::get_hard_fork_starting_height(uint8_t version) const
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open();
mdb_txn_safe txn;
mdb_txn_safe* txn_ptr = &txn;
if (m_batch_active)
txn_ptr = m_write_txn;
else
{
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
txn_ptr = &txn;
}
MDB_val_copy<uint8_t> val_key(version);
MDB_val val_ret;
auto result = mdb_get(*txn_ptr, m_hf_starting_heights, &val_key, &val_ret);
if (result == MDB_NOTFOUND)
return std::numeric_limits<uint64_t>::max();
if (result)
throw0(DB_ERROR("Error attempting to retrieve a hard fork starting height from the db"));
if (!m_batch_active)
txn.commit();
return *(const uint64_t*)val_ret.mv_data;
}
void BlockchainLMDB::set_hard_fork_version(uint64_t height, uint8_t version)
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open();
//LOG_PRINT_L1("BlockchainLMDB::set_hard_fork_version: batch " << m_batch_active << ", height " << height << ", version " << (int)version);
mdb_txn_safe txn;
mdb_txn_safe* txn_ptr = &txn;
if (m_batch_active)
txn_ptr = m_write_txn;
else
{
if (mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
txn_ptr = &txn;
}
MDB_val_copy<uint64_t> val_key(height);
MDB_val_copy<uint8_t> val_value(version);
if (auto result = mdb_put(*txn_ptr, m_hf_versions, &val_key, &val_value, 0))
throw1(DB_ERROR(std::string("Error adding hard fork version to db transaction: ").append(mdb_strerror(result)).c_str()));
if (!m_batch_active)
txn.commit();
}
uint8_t BlockchainLMDB::get_hard_fork_version(uint64_t height) const
{
LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open();
mdb_txn_safe txn;
mdb_txn_safe* txn_ptr = &txn;
if (m_batch_active)
txn_ptr = m_write_txn;
else
{
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
txn_ptr = &txn;
}
MDB_val_copy<uint64_t> val_key(height);
MDB_val val_ret;
auto result = mdb_get(*txn_ptr, m_hf_versions, &val_key, &val_ret);
if (result == MDB_NOTFOUND || result)
throw0(DB_ERROR("Error attempting to retrieve a hard fork version from the db"));
if (!m_batch_active)
txn.commit();
return *(const uint8_t*)val_ret.mv_data;
}
} // namespace cryptonote