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blockchain: add --reorg-notify

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This will trigger if a reorg is seen. This may be used to do things
like stop automated withdrawals on large reorgs.

%s is replaced by the height at the split point
%h is replaced by the height of the new chain
%n is replaced by the number of new blocks after the reorg
This commit is contained in:
moneromooo-monero 2019-01-09 14:29:28 +00:00
parent f6db59b011
commit 23813c7160
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GPG key ID: 686F07454D6CEFC3
3 changed files with 32 additions and 1 deletions
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5
src/cryptonote_core/blockchain.cpp
View file

@ -1073,6 +1073,11 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::
m_hardfork->reorganize_from_chain_height(split_height);
std::shared_ptr<tools::Notify> reorg_notify = m_reorg_notify;
if (reorg_notify)
reorg_notify->notify("%s", std::to_string(split_height).c_str(), "%h", std::to_string(m_db->height()).c_str(),
"%n", std::to_string(m_db->height() - split_height).c_str(), NULL);
MGINFO_GREEN("REORGANIZE SUCCESS! on height: " << split_height << ", new blockchain size: " << m_db->height());
return true;
}

10
src/cryptonote_core/blockchain.h
View file

@ -731,10 +731,17 @@ namespace cryptonote
/**
* @brief sets a block notify object to call for every new block
*
* @param notify the notify object to cal at every new block
* @param notify the notify object to call at every new block
*/
void set_block_notify(const std::shared_ptr<tools::Notify> &notify) { m_block_notify = notify; }
/**
* @brief sets a reorg notify object to call for every reorg
*
* @param notify the notify object to call at every reorg
*/
void set_reorg_notify(const std::shared_ptr<tools::Notify> &notify) { m_reorg_notify = notify; }
/**
* @brief Put DB in safe sync mode
*/
@ -1077,6 +1084,7 @@ namespace cryptonote
bool m_btc_valid;
std::shared_ptr<tools::Notify> m_block_notify;
std::shared_ptr<tools::Notify> m_reorg_notify;
/**
* @brief collects the keys for all outputs being "spent" as an input

18
src/cryptonote_core/cryptonote_core.cpp
View file

@ -185,6 +185,13 @@ namespace cryptonote
, "Prune blockchain"
, false
};
static const command_line::arg_descriptor<std::string> arg_reorg_notify = {
"reorg-notify"
, "Run a program for each reorg, '%s' will be replaced by the split height, "
"'%h' will be replaced by the new blockchain height, and '%n' will be "
"replaced by the number of new blocks in the new chain"
, ""
};
//-----------------------------------------------------------------------------------------------
core::core(i_cryptonote_protocol* pprotocol):
@ -300,6 +307,7 @@ namespace cryptonote
command_line::add_arg(desc, arg_pad_transactions);
command_line::add_arg(desc, arg_block_notify);
command_line::add_arg(desc, arg_prune_blockchain);
command_line::add_arg(desc, arg_reorg_notify);
miner::init_options(desc);
BlockchainDB::init_options(desc);
@ -582,6 +590,16 @@ namespace cryptonote
MERROR("Failed to parse block notify spec");
}
try
{
if (!command_line::is_arg_defaulted(vm, arg_reorg_notify))
m_blockchain_storage.set_reorg_notify(std::shared_ptr<tools::Notify>(new tools::Notify(command_line::get_arg(vm, arg_reorg_notify).c_str())));
}
catch (const std::exception &e)
{
MERROR("Failed to parse reorg notify spec");
}
const std::pair<uint8_t, uint64_t> regtest_hard_forks[3] = {std::make_pair(1, 0), std::make_pair(Blockchain::get_hard_fork_heights(MAINNET).back().version, 1), std::make_pair(0, 0)};
const cryptonote::test_options regtest_test_options = {
regtest_hard_forks