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The track-record pass orders open proposals keepers, no-record, underperformers. The no-record tier carries no earnings evidence, so order it by a capability prior: nodes whose node_announcement advertises splicing (BOLT 9 option_splice, bits 62/63) come first, since their channels can later be resized without a close and reopen. Keepers and underperformers keep their earnings-based order, and nothing moves across a tier boundary. New Ln::feature_bit tests a bit in a BOLT 9 hex bitfield (bit 0 is the least-significant bit of the last byte), with a unit test. Spliceability is looked up per candidate via listnodes; an RPC failure or absent features field counts as not spliceable, so the lookup cannot block channel creation. The Track records report marks spliceable no-record nodes with an (S) suffix.
21 lines
493 B
C++
21 lines
493 B
C++
#ifndef LN_FEATUREBIT_HPP
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#define LN_FEATUREBIT_HPP
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#include<string>
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namespace Ln {
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/** Ln::feature_bit
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*
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* @brief determine whether the given feature bit is set in a
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* hex-encoded feature bitfield (BOLT #9 encoding: bit 0 is the
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* least-significant bit of the last byte).
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*
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* @desc returns false for malformed hex, or for bitfields too
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* short to contain the bit.
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*/
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bool feature_bit(std::string const& features_hex, unsigned int bit);
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}
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#endif /* !defined(LN_FEATUREBIT_HPP) */
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