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Make difficulty 128 bit instead of 64 bit

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Based on Boolberry work by:
  jahrsg <jahr@jahr.me>
  cr.zoidberg <crypto.zoidberg@gmail.com>
This commit is contained in:
moneromooo-monero 2019-01-31 10:44:08 +00:00
parent e4b049da05
commit 91f4c7f45f
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GPG key ID: 686F07454D6CEFC3
30 changed files with 787 additions and 62 deletions
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8
src/cryptonote_core/blockchain.cpp
View file

@ -1997,7 +1997,7 @@ bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qbloc
return true;
}
//------------------------------------------------------------------
uint64_t Blockchain::block_difficulty(uint64_t i) const
difficulty_type Blockchain::block_difficulty(uint64_t i) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
// WARNING: this function does not take m_blockchain_lock, and thus should only call read only
@ -2196,7 +2196,11 @@ bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qbloc
bool result = find_blockchain_supplement(qblock_ids, resp.m_block_ids, resp.start_height, resp.total_height);
if (result)
resp.cumulative_difficulty = m_db->get_block_cumulative_difficulty(resp.total_height - 1);
{
cryptonote::difficulty_type wide_cumulative_difficulty = m_db->get_block_cumulative_difficulty(resp.total_height - 1);
resp.cumulative_difficulty = (wide_cumulative_difficulty << 64 >> 64).convert_to<uint64_t>();
resp.cumulative_difficulty_top64 = (wide_cumulative_difficulty >> 64).convert_to<uint64_t>();
}
return result;
}

2
src/cryptonote_core/blockchain.h
View file

@ -653,7 +653,7 @@ namespace cryptonote
*
* @return the difficulty
*/
uint64_t block_difficulty(uint64_t i) const;
difficulty_type block_difficulty(uint64_t i) const;
/**
* @brief gets blocks based on a list of block hashes