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https://github.com/XRPLF/rippled.git
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f4555c80fe
Reverts 259 files that carried unrelated upstream changes through the phase-6 merge: enum class removals (cppcoreguidelines-use-enum-class), scoped_lock→lock_guard conversions (modernize-use-scoped-lock), nodestore Backend API changes (void const* key), .clang-tidy config, test infrastructure deletions, and miscellaneous develop changes. These changes belong on develop, not in the telemetry PR chain. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
#pragma once
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#include <xrpl/beast/hash/hash_append.h>
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#include <xrpl/beast/hash/uhash.h>
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#include <xrpl/beast/utility/Journal.h>
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#include <xrpl/protocol/PublicKey.h>
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#include <mutex>
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#include <optional>
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#include <string>
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#include <unordered_set>
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#include <vector>
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namespace xrpl {
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class DatabaseCon;
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// Value type for reservations.
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struct PeerReservation final
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{
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public:
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PublicKey nodeId;
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std::string description = {}; // NOLINT(readability-redundant-member-init)
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[[nodiscard]] auto
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toJson() const -> Json::Value;
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template <typename Hasher>
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friend void
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hash_append(Hasher& h, PeerReservation const& x) noexcept
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{
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using beast::hash_append;
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hash_append(h, x.nodeId);
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}
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friend bool
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operator<(PeerReservation const& a, PeerReservation const& b)
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{
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return a.nodeId < b.nodeId;
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}
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};
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// TODO: When C++20 arrives, take advantage of "equivalence" instead of
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// "equality". Add an overload for `(PublicKey, PeerReservation)`, and just
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// pass a `PublicKey` directly to `unordered_set.find`.
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struct KeyEqual final
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{
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bool
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operator()(PeerReservation const& lhs, PeerReservation const& rhs) const
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{
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return lhs.nodeId == rhs.nodeId;
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}
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};
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class PeerReservationTable final
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{
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public:
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explicit PeerReservationTable(
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beast::Journal journal = beast::Journal(beast::Journal::getNullSink()))
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: journal_(journal)
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{
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}
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std::vector<PeerReservation>
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list() const;
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bool
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contains(PublicKey const& nodeId)
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{
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std::scoped_lock const lock(this->mutex_);
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return table_.contains({.nodeId = nodeId, .description = {}});
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}
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// Because `ApplicationImp` has two-phase initialization, so must we.
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// Our dependencies are not prepared until the second phase.
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bool
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load(DatabaseCon& connection);
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/**
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* @return the replaced reservation if it existed
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* @throw soci::soci_error
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*/
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std::optional<PeerReservation>
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insert_or_assign(PeerReservation const& reservation);
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/**
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* @return the erased reservation if it existed
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*/
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std::optional<PeerReservation>
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erase(PublicKey const& nodeId);
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private:
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beast::Journal mutable journal_;
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std::mutex mutable mutex_;
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DatabaseCon* connection_{};
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std::unordered_set<PeerReservation, beast::uhash<>, KeyEqual> table_;
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};
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} // namespace xrpl
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