3 #include <boost/thread/locks.hpp> 4 #include <boost/thread/mutex.hpp> 14 output_distribution_data
17 if (!cumulative && !distribution.empty())
19 for (std::size_t n = distribution.size() - 1; 0 < n; --n)
20 distribution[n] -= distribution[n - 1];
21 distribution[0] -= base;
24 return {
std::move(distribution), start_height, base};
28 boost::optional<output_distribution_data>
29 RpcHandler::get_output_distribution(
const std::function<
bool(
uint64_t,
uint64_t,
uint64_t,
uint64_t&, std::vector<uint64_t>&,
uint64_t&)> &f,
uint64_t amount,
uint64_t from_height,
uint64_t to_height,
const std::function<
crypto::hash(
uint64_t)> &get_hash,
bool cumulative,
uint64_t blockchain_height)
34 std::vector<std::uint64_t> cached_distribution;
35 std::uint64_t cached_from, cached_to, cached_start_height, cached_base;
39 D(): cached_from(0), cached_to(0), cached_start_height(0), cached_base(0), cached_m10_hash(crypto::null_hash), cached_top_hash(crypto::null_hash), cached(
false) {}
41 const boost::unique_lock<boost::mutex> lock(d.mutex);
44 if (d.cached_to < blockchain_height)
45 top_hash = get_hash(d.cached_to);
46 if (d.cached && amount == 0 && d.cached_from == from_height && d.cached_to == to_height && d.cached_top_hash == top_hash)
47 return process_distribution(cumulative, d.cached_start_height, d.cached_distribution, d.cached_base);
49 std::vector<std::uint64_t> distribution;
53 bool can_extend = d.cached && amount == 0 && d.cached_from == from_height && to_height > d.cached_to && top_hash == d.cached_top_hash;
58 if (d.cached && amount == 0 && d.cached_from == from_height && d.cached_to - d.cached_from >= 10 && to_height > d.cached_to - 10)
61 if (hash10 == d.cached_m10_hash)
64 d.cached_top_hash = hash10;
65 d.cached_m10_hash = crypto::null_hash;
66 d.cached_distribution.resize(d.cached_distribution.size() - 10);
73 std::vector<std::uint64_t> new_distribution;
74 if (!f(amount, d.cached_to + 1, to_height, start_height, new_distribution, base))
76 distribution = d.cached_distribution;
77 distribution.reserve(distribution.size() + new_distribution.size());
78 for (
const auto &e: new_distribution)
79 distribution.push_back(e);
80 start_height = d.cached_start_height;
85 if (!f(amount, from_height, to_height, start_height, distribution, base))
89 if (to_height > 0 && to_height >= from_height)
91 const std::uint64_t offset = std::max(from_height, start_height);
92 if (offset <= to_height && to_height - offset + 1 < distribution.size())
93 distribution.resize(to_height - offset + 1);
98 d.cached_from = from_height;
99 d.cached_to = to_height;
100 d.cached_top_hash = get_hash(d.cached_to);
101 d.cached_m10_hash = d.cached_to >= 10 ? get_hash(d.cached_to - 10) : crypto::null_hash;
102 d.cached_distribution = distribution;
103 d.cached_start_height = start_height;
104 d.cached_base = base;
108 return process_distribution(cumulative, start_height,
std::move(distribution), base);
Holds cryptonote related classes and helpers.
unsigned __int64 uint64_t
const T & move(const T &t)
static boost::optional< output_distribution_data > get_output_distribution(const std::function< bool(uint64_t, uint64_t, uint64_t, uint64_t &, std::vector< uint64_t > &, uint64_t &)> &f, uint64_t amount, uint64_t from_height, uint64_t to_height, const std::function< crypto::hash(uint64_t)> &get_hash, bool cumulative, uint64_t blockchain_height)