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Add LMDB error string to database transaction exception message

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When throwing an exception from being unable to begin an LMDB
transaction, include the reason.

It's often been due to a write transaction attempted within a write
transaction (batch mode), but there can be other reasons such as write
transaction attempted while database was opened read only, or
environment's map needs to be resized.
pull/95/head
warptangent 9 years ago
parent e175205e6e
commit 79ff6a5a56
No known key found for this signature in database
GPG Key ID: 0E490BEBFBE4E92D
1 changed files with 74 additions and 68 deletions
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142
src/blockchain_db/lmdb/db_lmdb.cpp
Unescape View File

@ -208,6 +208,12 @@ inline void lmdb_db_open(MDB_txn* txn, const char* name, int flags, MDB_dbi& dbi
throw0(cryptonote::DB_OPEN_FAILURE(error_string.c_str()));
}
const std::string lmdb_error(const std::string& error_string, int mdb_res)
{
const std::string full_string = error_string + mdb_strerror(mdb_res);
return full_string;
}
} // anonymous namespace
namespace cryptonote
@ -994,8 +1000,8 @@ void BlockchainLMDB::open(const std::string& filename, const int mdb_flags)
// get a read/write MDB_txn, depending on mdb_flags
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, txn_flags, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, txn_flags, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
// open necessary databases, and set properties as needed
// uses macros to avoid having to change things too many places
@ -1206,8 +1212,8 @@ bool BlockchainLMDB::block_exists(const crypto::hash& h) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val_copy<crypto::hash> key(h);
MDB_val result;
@ -1239,8 +1245,8 @@ uint64_t BlockchainLMDB::get_block_height(const crypto::hash& h) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val_copy<crypto::hash> key(h);
MDB_val result;
@ -1269,8 +1275,8 @@ block BlockchainLMDB::get_block_from_height(const uint64_t& height) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val_copy<uint64_t> key(height);
MDB_val result;
@ -1305,8 +1311,8 @@ uint64_t BlockchainLMDB::get_block_timestamp(const uint64_t& height) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<uint64_t> key(height);
MDB_val result;
@ -1348,8 +1354,8 @@ size_t BlockchainLMDB::get_block_size(const uint64_t& height) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<uint64_t> key(height);
@ -1378,8 +1384,8 @@ difficulty_type BlockchainLMDB::get_block_cumulative_difficulty(const uint64_t&
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<uint64_t> key(height);
MDB_val result;
@ -1424,8 +1430,8 @@ uint64_t BlockchainLMDB::get_block_already_generated_coins(const uint64_t& heigh
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<uint64_t> key(height);
@ -1454,8 +1460,8 @@ crypto::hash BlockchainLMDB::get_block_hash_from_height(const uint64_t& height)
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<uint64_t> key(height);
@ -1547,8 +1553,8 @@ bool BlockchainLMDB::tx_exists(const crypto::hash& h) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<crypto::hash> key(h);
@ -1577,8 +1583,8 @@ uint64_t BlockchainLMDB::get_tx_unlock_time(const crypto::hash& h) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val_copy<crypto::hash> key(h);
MDB_val result;
@ -1602,8 +1608,8 @@ transaction BlockchainLMDB::get_tx(const crypto::hash& h) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<crypto::hash> key(h);
@ -1632,8 +1638,8 @@ uint64_t BlockchainLMDB::get_tx_count() const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_stat db_stats;
if (mdb_stat(txn, m_txs, &db_stats))
@ -1669,8 +1675,8 @@ uint64_t BlockchainLMDB::get_tx_block_height(const crypto::hash& h) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<crypto::hash> key(h);
@ -1695,8 +1701,8 @@ uint64_t BlockchainLMDB::get_num_outputs(const uint64_t& amount) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
lmdb_cur cur(txn, m_output_amounts);
@ -1724,8 +1730,8 @@ output_data_t BlockchainLMDB::get_output_key(const uint64_t &global_index) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val_copy<uint64_t> k(global_index);
MDB_val v;
@ -1758,8 +1764,8 @@ tx_out_index BlockchainLMDB::get_output_tx_and_index_from_global(const uint64_t&
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
MDB_val_copy<uint64_t> k(index);
MDB_val v;
@ -1803,8 +1809,8 @@ std::vector<uint64_t> BlockchainLMDB::get_tx_output_indices(const crypto::hash&
std::vector<uint64_t> index_vec;
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
lmdb_cur cur(txn, m_tx_outputs);
@ -1848,8 +1854,8 @@ std::vector<uint64_t> BlockchainLMDB::get_tx_amount_output_indices(const crypto:
transaction tx = get_tx(h);
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
uint64_t i = 0;
uint64_t global_index;
@ -1919,8 +1925,8 @@ bool BlockchainLMDB::has_key_image(const crypto::key_image& img) const
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val_copy<crypto::key_image> val_key(img);
MDB_val unused;
@ -1940,8 +1946,8 @@ bool BlockchainLMDB::for_all_key_images(std::function<bool(const crypto::key_ima
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val k;
MDB_val v;
@ -1976,8 +1982,8 @@ bool BlockchainLMDB::for_all_blocks(std::function<bool(uint64_t, const crypto::h
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val k;
MDB_val v;
@ -2020,8 +2026,8 @@ bool BlockchainLMDB::for_all_transactions(std::function<bool(const crypto::hash&
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val k;
MDB_val v;
@ -2061,8 +2067,8 @@ bool BlockchainLMDB::for_all_outputs(std::function<bool(uint64_t amount, const c
check_open();
mdb_txn_safe txn;
if (mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
MDB_val k;
MDB_val v;
@ -2112,8 +2118,8 @@ void BlockchainLMDB::batch_start(uint64_t batch_num_blocks)
m_write_batch_txn = new mdb_txn_safe();
// NOTE: need to make sure it's destroyed properly when done
if (mdb_txn_begin(m_env, NULL, 0, *m_write_batch_txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, *m_write_batch_txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
// indicates this transaction is for batch transactions, but not whether it's
// active
m_write_batch_txn->m_batch_txn = true;
@ -2210,8 +2216,8 @@ uint64_t BlockchainLMDB::add_block(const block& blk, const size_t& block_size, c
mdb_txn_safe txn;
if (! m_batch_active)
{
if (mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
m_write_txn = &txn;
}
@ -2248,8 +2254,8 @@ void BlockchainLMDB::pop_block(block& blk, std::vector<transaction>& txs)
mdb_txn_safe txn;
if (! m_batch_active)
{
if (mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR("Failed to create a transaction for the db"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
m_write_txn = &txn;
}
@ -2287,8 +2293,8 @@ void BlockchainLMDB::get_output_tx_and_index_from_global(const std::vector<uint6
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
for (const uint64_t &index : global_indices)
@ -2339,8 +2345,8 @@ void BlockchainLMDB::get_output_global_indices(const uint64_t& amount, const std
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
lmdb_cur cur(*txn_ptr, m_output_amounts);
@ -2445,8 +2451,8 @@ void BlockchainLMDB::get_output_key(const uint64_t &amount, const std::vector<ui
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
}
for (const uint64_t &index : global_indices)
{
@ -2500,8 +2506,8 @@ void BlockchainLMDB::set_hard_fork_starting_height(uint8_t version, uint64_t hei
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
txn_ptr = &txn;
}
@ -2525,8 +2531,8 @@ uint64_t BlockchainLMDB::get_hard_fork_starting_height(uint8_t version) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
txn_ptr = &txn;
}
@ -2555,8 +2561,8 @@ void BlockchainLMDB::set_hard_fork_version(uint64_t height, uint8_t version)
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, 0, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
txn_ptr = &txn;
}
@ -2580,8 +2586,8 @@ uint8_t BlockchainLMDB::get_hard_fork_version(uint64_t height) const
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"));
if (auto mdb_res = mdb_txn_begin(m_env, NULL, MDB_RDONLY, txn))
throw0(DB_ERROR(lmdb_error("Failed to create a transaction for the db: ", mdb_res).c_str()));
txn_ptr = &txn;
}

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