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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
#ifndef RIPPLE_PROTOCOL_EXPORTCOMMITTEE_H_INCLUDED
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#define RIPPLE_PROTOCOL_EXPORTCOMMITTEE_H_INCLUDED
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#include <xrpl/protocol/ExportLimits.h>
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#include <xrpl/protocol/ValidatorBitset.h>
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#include <cstddef>
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#include <optional>
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#include <utility>
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namespace ripple {
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/** Validated v1 Export committee profile for one pinned validator universe. */
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struct ExportCommitteeProfile
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{
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ValidatedValidatorBitset members;
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std::size_t quorum;
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};
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/** Resolve the fixed v1 profile from its canonical LSB-first bitmap.
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Callers bind `universeSize` to the immediate parent ledger's canonical
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pre-NegativeUNL UNLReport view. The intent selects members only; v1 fixes
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quorum policy at ceil(0.8 * selected members).
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*/
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inline std::optional<ExportCommitteeProfile>
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resolveExportCommittee(Slice bitmap, std::size_t universeSize)
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{
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if (universeSize == 0 ||
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universeSize > ExportLimits::maxValidatorUniverseMembers)
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return std::nullopt;
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auto members = validateValidatorBitset(bitmap, universeSize);
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if (!members || members->selected() == 0 ||
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members->selected() > ExportLimits::maxCommitteeMembers)
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return std::nullopt;
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auto const quorum =
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ExportLimits::committeeQuorumThreshold(members->selected());
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return ExportCommitteeProfile{std::move(*members), quorum};
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}
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} // namespace ripple
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#endif
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