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90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
#pragma once
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#include <xrpl/basics/DecayingSample.h>
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#include <xrpl/beast/clock/abstract_clock.h>
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#include <xrpl/beast/core/List.h>
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#include <xrpl/beast/utility/instrumentation.h>
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#include <xrpl/resource/detail/Key.h>
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#include <xrpl/resource/detail/Tuning.h>
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namespace xrpl::Resource {
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using clock_type = beast::AbstractClock<std::chrono::steady_clock>;
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// An entry in the table
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// VFALCO DEPRECATED using boost::intrusive list
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struct Entry : public beast::List<Entry>::Node
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{
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Entry() = delete;
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/**
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@param now Construction time of Entry.
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*/
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explicit Entry(clock_type::time_point const now)
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: refcount(0), localBalance(now), remoteBalance(0)
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{
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}
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[[nodiscard]] std::string
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toString() const
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{
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return getFingerprint(key->address, publicKey);
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}
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/**
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* Returns `true` if this connection should have no
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* resource limits applied--it is still possible for certain RPC commands
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* to be forbidden, but that depends on Role.
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*/
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[[nodiscard]] bool
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isUnlimited() const
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{
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return key->kind == Kind::Unlimited;
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}
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// Balance including remote contributions
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int
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balance(clock_type::time_point const now)
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{
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return localBalance.value(now) + remoteBalance;
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}
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// Add a charge and return normalized balance
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// including contributions from imports.
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int
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add(int charge, clock_type::time_point const now)
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{
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return localBalance.add(charge, now) + remoteBalance;
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}
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// The public key of the peer
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std::optional<PublicKey> publicKey;
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// Back pointer to the map key (bit of a hack here)
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Key const* key{};
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// Number of Consumer references
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int refcount;
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// Exponentially decaying balance of resource consumption
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DecayingSample<kDecayWindowSeconds, clock_type> localBalance;
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// Normalized balance contribution from imports
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int remoteBalance;
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// Time of the last warning
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clock_type::time_point lastWarningTime;
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// For inactive entries, time after which this entry will be erased
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clock_type::time_point whenExpires;
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};
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inline std::ostream&
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operator<<(std::ostream& os, Entry const& v)
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{
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os << v.toString();
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return os;
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}
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} // namespace xrpl::Resource
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