From 7bd66b01bfb62ecaf8ff02b20d14db3a77322abc Mon Sep 17 00:00:00 2001 From: stoffu Date: Fri, 15 May 2020 10:56:23 +0900 Subject: daemon: guard against rare 'difficulty drift' bug with checkpoints and recalculation On startup, it checks against the difficulty checkpoints, and if any mismatch is found, recalculates all the blocks with wrong difficulties. Additionally, once a week it recalculates difficulties of blocks after the last difficulty checkpoint. --- src/cryptonote_core/cryptonote_core.cpp | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/cryptonote_core/cryptonote_core.cpp') diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp index 0f8bde3e9..5e4a1accd 100644 --- a/src/cryptonote_core/cryptonote_core.cpp +++ b/src/cryptonote_core/cryptonote_core.cpp @@ -1662,6 +1662,7 @@ namespace cryptonote m_check_disk_space_interval.do_call(boost::bind(&core::check_disk_space, this)); m_block_rate_interval.do_call(boost::bind(&core::check_block_rate, this)); m_blockchain_pruning_interval.do_call(boost::bind(&core::update_blockchain_pruning, this)); + m_diff_recalc_interval.do_call(boost::bind(&core::recalculate_difficulties, this)); m_miner.on_idle(); m_mempool.on_idle(); return true; @@ -1923,6 +1924,12 @@ namespace cryptonote return true; } //----------------------------------------------------------------------------------------------- + bool core::recalculate_difficulties() + { + m_blockchain_storage.recalculate_difficulties(); + return true; + } + //----------------------------------------------------------------------------------------------- void core::flush_bad_txs_cache() { bad_semantics_txes_lock.lock(); -- cgit v1.2.3