Merge pull request #4908

5ca4994c rpc: speed up the common get_output_distribution case while syncing (moneromooo-monero)
This commit is contained in:
Riccardo Spagni 2018-12-12 11:59:04 +02:00
commit 4556f0e2b8
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1 changed files with 19 additions and 2 deletions

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@ -43,8 +43,25 @@ namespace rpc
std::vector<std::uint64_t> distribution;
std::uint64_t start_height, base;
if (!f(amount, from_height, to_height, start_height, distribution, base))
return boost::none;
// see if we can extend the cache - a common case
if (d.cached && amount == 0 && d.cached_from == from_height && to_height > d.cached_to)
{
std::vector<std::uint64_t> new_distribution;
if (!f(amount, d.cached_to + 1, to_height, start_height, new_distribution, base))
return boost::none;
distribution = d.cached_distribution;
distribution.reserve(distribution.size() + new_distribution.size());
for (const auto &e: new_distribution)
distribution.push_back(e);
start_height = d.cached_start_height;
base = d.cached_base;
}
else
{
if (!f(amount, from_height, to_height, start_height, distribution, base))
return boost::none;
}
if (to_height > 0 && to_height >= from_height)
{