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wallet2: avoid growing the short history when refreshing in a loop

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This commit is contained in:
moneromooo-monero 2017-10-30 10:16:54 +00:00
parent f48aeab5c4
commit 99f398a25e
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GPG Key ID: 686F07454D6CEFC3
1 changed files with 17 additions and 10 deletions
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27
src/wallet/wallet2.cpp
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@ -468,6 +468,19 @@ static void emplace_or_replace(std::unordered_multimap<crypto::hash, tools::wall
container.emplace(key, pd);
}
void drop_from_short_history(std::list<crypto::hash> &short_chain_history, size_t N)
{
std::list<crypto::hash>::iterator right;
// drop early N off, skipping the genesis block
if (short_chain_history.size() > N) {
right = short_chain_history.end();
std::advance(right,-1);
std::list<crypto::hash>::iterator left = right;
std::advance(left, -N);
short_chain_history.erase(left, right);
}
}
} //namespace
namespace tools
@ -1521,6 +1534,8 @@ void wallet2::pull_next_blocks(uint64_t start_height, uint64_t &blocks_start_hei
try
{
drop_from_short_history(short_chain_history, 3);
// prepend the last 3 blocks, should be enough to guard against a block or two's reorg
cryptonote::block bl;
std::list<cryptonote::block_complete_entry>::const_reverse_iterator i = prev_blocks.rbegin();
@ -1810,16 +1825,8 @@ void wallet2::fast_refresh(uint64_t stop_height, uint64_t &blocks_start_height,
if (hashes.size() <= 3)
return;
if (hashes.size() + current_index < stop_height) {
std::list<crypto::hash>::iterator right;
// drop early 3 off, skipping the genesis block
if (short_chain_history.size() > 3) {
right = short_chain_history.end();
std::advance(right,-1);
std::list<crypto::hash>::iterator left = right;
std::advance(left, -3);
short_chain_history.erase(left, right);
}
right = hashes.end();
drop_from_short_history(short_chain_history, 3);
std::list<crypto::hash>::iterator right = hashes.end();
// prepend 3 more
for (int i = 0; i<3; i++) {
right--;