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Merge pull request #333 from fireice-uk/checkpoint-hash
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| // Copyright (c) 2011-2017 The Cryptonote developers | ||
| // Copyright (c) 2017-2018 The Circle Foundation & Conceal Devs | ||
| // Copyright (c) 2018-2023 Conceal Network & Conceal Devs | ||
| // | ||
| // Distributed under the MIT/X11 software license, see the accompanying | ||
| // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
|
|
||
| #pragma once | ||
| #include <vector> | ||
| #include <unordered_set> | ||
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| #include "CryptoNoteBasicImpl.h" | ||
| #include <Logging/LoggerRef.h> | ||
|
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| namespace cn | ||
| { | ||
| class CheckpointList | ||
| { | ||
| public: | ||
| explicit CheckpointList(logging::ILogger& log) : logger(log, "checkpoint_list") {} | ||
|
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| void init_targets(bool is_testnet, const std::string& save_file); | ||
|
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| bool add_checkpoint_list(uint32_t start_height, std::vector<crypto::Hash>& points); | ||
| bool set_checkpoint_list(std::vector<crypto::Hash>&& points); | ||
| bool load_checkpoints_from_file(); | ||
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| uint32_t get_points_size() const | ||
| { | ||
| const std::lock_guard<std::mutex> lock(m_points_lock); | ||
| return m_points.size(); | ||
| } | ||
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| uint32_t get_greatest_target_height() const | ||
| { | ||
| return m_targets.rbegin()->first - 1; | ||
| } | ||
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| bool is_ready() const | ||
| { | ||
| const std::lock_guard<std::mutex> lock(m_points_lock); | ||
| return m_points.size()-1 >= get_greatest_target_height(); | ||
| } | ||
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| bool is_in_checkpoint_zone(uint32_t height) const | ||
| { | ||
| const std::lock_guard<std::mutex> lock(m_points_lock); | ||
| return m_points.size() < height; | ||
| } | ||
|
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| enum check_rt | ||
| { | ||
| is_out_of_zone, | ||
| is_in_zone_failed, | ||
| is_checkpointed | ||
| }; | ||
|
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| check_rt check_checkpoint(uint32_t height, const crypto::Hash& hv) const | ||
| { | ||
| const std::lock_guard<std::mutex> lock(m_points_lock); | ||
|
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| if(m_points.size() <= height) | ||
| return is_out_of_zone; | ||
| if(m_points[height] == hv) | ||
| return is_checkpointed; | ||
| else | ||
| return is_in_zone_failed; | ||
| } | ||
|
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| std::vector<std::pair<uint32_t, crypto::Hash>> get_checkpoint_targets() const | ||
| { | ||
| std::vector<std::pair<uint32_t, crypto::Hash>> rv; | ||
| rv.reserve(m_targets.size()); | ||
| for(auto it = m_targets.rbegin(); it != m_targets.rend(); ++it) | ||
| rv.emplace_back(it->first-1, it->second); | ||
| return rv; | ||
| } | ||
|
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| struct t_get_incomplete_checkpoint_target_rv { | ||
| crypto::Hash target_hash = NULL_HASH; | ||
| uint32_t start_height; | ||
| uint32_t end_height; | ||
| }; | ||
|
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| t_get_incomplete_checkpoint_target_rv get_incomplete_checkpoint_target() const | ||
| { | ||
| t_get_incomplete_checkpoint_target_rv rv; | ||
| size_t point_size = m_points.size(); | ||
| if(point_size >= m_targets.rbegin()->first) | ||
| return rv; | ||
| rv.start_height = 0; | ||
| for(const auto& p : m_targets) | ||
| { | ||
| if(point_size < p.first) | ||
| { | ||
| rv.end_height = p.first; | ||
| rv.target_hash = p.second; | ||
| return rv; | ||
| } | ||
| else | ||
| { | ||
| rv.start_height = p.first; | ||
| } | ||
| } | ||
| return rv; | ||
| } | ||
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| private: | ||
| bool m_testnet; | ||
| logging::LoggerRef logger; | ||
| std::string m_save_file; | ||
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| mutable std::mutex m_points_lock; | ||
| std::map<uint32_t, crypto::Hash> m_targets; /*NB uint32_t is size not height */ | ||
| std::unordered_set<uint32_t> m_valid_point_sizes; | ||
| std::vector<crypto::Hash> m_points; | ||
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| bool save_checkpoints(); | ||
| bool add_checkpoint_target(uint32_t height, const std::string &hash_str); | ||
| bool is_fsize_valid(uint32_t fsize) | ||
| { | ||
| if(fsize % sizeof(crypto::Hash) != 0) | ||
| return false; | ||
| fsize /= sizeof(crypto::Hash); | ||
|
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| return m_valid_point_sizes.find(fsize) != m_valid_point_sizes.end(); | ||
| } | ||
| }; | ||
| } |
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