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91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
#pragma once
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#include <xrpl/basics/Slice.h>
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#include <xrpl/basics/base_uint.h>
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#include <xrpl/basics/chrono.h>
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#include <xrpl/beast/utility/Zero.h>
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#include <xrpl/protocol/Protocol.h>
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#include <xrpl/protocol/Serializer.h>
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#include <xrpl/protocol/XRPAmount.h>
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#include <cstdint>
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namespace xrpl {
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/**
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* Information about the notional ledger backing the view.
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*/
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struct LedgerHeader
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{
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explicit LedgerHeader() = default;
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//
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// For all ledgers
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//
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LedgerIndex seq = 0;
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NetClock::time_point parentCloseTime;
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//
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// For closed ledgers
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//
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// Closed means "tx set already determined"
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uint256 hash = beast::kZero;
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uint256 txHash = beast::kZero;
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uint256 accountHash = beast::kZero;
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uint256 parentHash = beast::kZero;
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XRPAmount drops = beast::kZero;
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// If validated is false, it means "not yet validated."
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// Once validated is true, it will never be set false at a later time.
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// VFALCO TODO Make this not mutable
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bool mutable validated = false;
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bool accepted = false;
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// flags indicating how this ledger close took place
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int closeFlags = 0;
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// the resolution for this ledger close time (2-120 seconds)
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NetClock::duration closeTimeResolution = {};
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// For closed ledgers, the time the ledger
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// closed. For open ledgers, the time the ledger
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// will close if there's no transactions.
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//
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NetClock::time_point closeTime;
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};
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// ledger close flags
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static std::uint32_t const kSLcfNoConsensusTime = 0x01;
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inline bool
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getCloseAgree(LedgerHeader const& info)
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{
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return (info.closeFlags & kSLcfNoConsensusTime) == 0;
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}
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void
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addRaw(LedgerHeader const&, Serializer&, bool includeHash = false);
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/**
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* Deserialize a ledger header from a byte array.
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*/
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LedgerHeader
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deserializeHeader(Slice data, bool hasHash = false);
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/**
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* Deserialize a ledger header (prefixed with 4 bytes) from a byte array.
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*/
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LedgerHeader
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deserializePrefixedHeader(Slice data, bool hasHash = false);
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/**
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* Calculate the hash of a ledger header.
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*/
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uint256
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calculateLedgerHash(LedgerHeader const& info);
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} // namespace xrpl
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