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db_lmdb: fix bad height saved in tx data

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The recent change to not keep separate track of the blockchain
height caused the reported height to jump early in the lmdb
transaction (when the block data is added to the blocks table),
rather than at the end, after everything succeeded. Since the
block data is added before the transaction data, this caused
the transaction data to be saved with a height one more than
its expected value.

Fix this by saving the block data last. This should have no
side effects.
This commit is contained in:
moneromooo-monero 2017-02-11 10:16:18 +00:00
parent cb54eeaa31
commit f2986ccfc1
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GPG key ID: 686F07454D6CEFC3
2 changed files with 7 additions and 6 deletions
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12
src/blockchain_db/blockchain_db.cpp
View file

@ -130,12 +130,6 @@ uint64_t BlockchainDB::add_block( const block& blk
uint64_t prev_height = height();
// call out to subclass implementation to add the block & metadata
time1 = epee::misc_utils::get_tick_count();
add_block(blk, block_size, cumulative_difficulty, coins_generated, blk_hash);
TIME_MEASURE_FINISH(time1);
time_add_block1 += time1;
// call out to add the transactions
time1 = epee::misc_utils::get_tick_count();
@ -151,6 +145,12 @@ uint64_t BlockchainDB::add_block( const block& blk
TIME_MEASURE_FINISH(time1);
time_add_transaction += time1;
// call out to subclass implementation to add the block & metadata
time1 = epee::misc_utils::get_tick_count();
add_block(blk, block_size, cumulative_difficulty, coins_generated, blk_hash);
TIME_MEASURE_FINISH(time1);
time_add_block1 += time1;
m_hardfork->add(blk, prev_height);
block_txn_stop();

1
src/blockchain_db/lmdb/db_lmdb.cpp
View file

@ -628,6 +628,7 @@ void BlockchainLMDB::add_block(const block& blk, const size_t& block_size, const
CURSOR(blocks)
CURSOR(block_info)
// this call to mdb_cursor_put will change height()
MDB_val_copy<blobdata> blob(block_to_blob(blk));
result = mdb_cursor_put(m_cur_blocks, &key, &blob, MDB_APPEND);
if (result)