29:I[49813,["/_next/static/chunks/3z--bwudlglfp.js","/_next/static/chunks/2u04xn-9yg2co.js","/_next/static/chunks/1b5-8ftwqgmtb.js","/_next/static/chunks/3nqo6bdos11l6.js","/_next/static/chunks/0fz0mlrjifmq7.js","/_next/static/chunks/034_kq3j28m99.js","/_next/static/chunks/29v1ttach42xh.js","/_next/static/chunks/3meo7law-jljp.js","/_next/static/chunks/1hplpmn3-d0tx.js"],"CodeWorkspace"] 2a:T13ca,/** * Copyright (c) 2011-2026 libbitcoin developers * * This file is part of libbitcoin. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ #include #include #include #include #include #include namespace libbitcoin { namespace system { namespace chain { bool checkpoint::is_at(const list& checkpoints, size_t height) NOEXCEPT { return std::any_of(checkpoints.cbegin(), checkpoints.cend(), [&](const auto& item) NOEXCEPT { return height == item.height(); }); } bool checkpoint::is_under(const list& checkpoints, size_t height) NOEXCEPT { // False if empty, optimal if checkpoints sorted by increasing height. return std::any_of(checkpoints.crbegin(), checkpoints.crend(), [&](const auto& item) NOEXCEPT { return height <= item.height(); }); } bool checkpoint::is_conflict(const list& checkpoints, const hash_digest& hash, size_t height) NOEXCEPT { // Conflict if height matches and hash does not. const auto it = std::find_if(checkpoints.cbegin(), checkpoints.cend(), [&](const auto& item) NOEXCEPT { return height == item.height(); }); return it != checkpoints.cend() && it->hash() != hash; } // Constructors. // ---------------------------------------------------------------------------- checkpoint::checkpoint() NOEXCEPT : checkpoint({}, zero, false) { } checkpoint::checkpoint(hash_digest&& hash, size_t height) NOEXCEPT : checkpoint(std::move(hash), height, true) { } checkpoint::checkpoint(const hash_digest& hash, size_t height) NOEXCEPT : checkpoint(hash, height, true) { } checkpoint::checkpoint(const std::string& hash, size_t height) NOEXCEPT : checkpoint(from_string(hash, height)) { } // protected checkpoint::checkpoint(hash_digest&& hash, size_t height, bool valid) NOEXCEPT : hash_(std::move(hash)), height_(height), valid_(valid) { } // protected checkpoint::checkpoint(const hash_digest& hash, size_t height, bool valid) NOEXCEPT : hash_(hash), height_(height), valid_(valid) { } // functional equality bool checkpoint::equals(const hash_digest& hash, size_t height) const NOEXCEPT { return this->hash() == hash && this->height() == height; } // Operators. // ---------------------------------------------------------------------------- bool operator<(const checkpoint& left, const checkpoint& right) NOEXCEPT { return left.height() < right.height(); } bool operator==(const checkpoint& left, const checkpoint& right) NOEXCEPT { return left.equals(right.hash(), right.height()); } bool operator!=(const checkpoint& left, const checkpoint& right) NOEXCEPT { return !(left == right); } // Deserialization. // ---------------------------------------------------------------------------- // TODO: add get_line/put_line to reader and eliminate stream_result. std::istream& operator>>(std::istream& stream, checkpoint& out) THROWS { std::string value; stream >> value; hash_digest hash; size_t height(zero); const auto tokens = split(value, ":"); if (tokens.size() != two || !decode_hash(hash, tokens.front()) || !deserialize(height, tokens.back())) throw istream_exception(value); out = { hash, height }; return stream; } // private checkpoint checkpoint::from_string(const std::string& hash, size_t height) NOEXCEPT { hash_digest digest; if (!decode_hash(digest, hash)) return {}; return { std::move(digest), height, true }; } bool checkpoint::is_valid() const NOEXCEPT { return valid_; } // Serialization. // ---------------------------------------------------------------------------- std::ostream& operator<<(std::ostream& stream, const checkpoint& in) NOEXCEPT { stream << in.to_string(); return stream; } std::string checkpoint::to_string() const NOEXCEPT { return encode_hash(hash_) + ":" + serialize(height_); } // Properties. // ---------------------------------------------------------------------------- size_t checkpoint::height() const NOEXCEPT { return height_; } const hash_digest& checkpoint::hash() const NOEXCEPT { return hash_; } } // namespace chain } // namespace system } // namespace libbitcoin 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