mirror of
https://github.com/ZmnSCPxj/clboss.git
synced 2026-08-14 12:43:19 +02:00
f1b37c5da5
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.
22 lines
522 B
C++
22 lines
522 B
C++
#include"Ln/FeatureBit.hpp"
|
|
#include"Util/Str.hpp"
|
|
#include<cstdint>
|
|
#include<vector>
|
|
|
|
namespace Ln {
|
|
|
|
bool feature_bit(std::string const& features_hex, unsigned int bit) {
|
|
auto bytes = std::vector<std::uint8_t>();
|
|
try {
|
|
bytes = Util::Str::hexread(features_hex);
|
|
} catch (Util::Str::HexParseFailure const&) {
|
|
return false;
|
|
}
|
|
auto byte_from_end = std::size_t(bit / 8);
|
|
if (byte_from_end >= bytes.size())
|
|
return false;
|
|
auto b = bytes[bytes.size() - 1 - byte_from_end];
|
|
return ((b >> (bit % 8)) & 1) != 0;
|
|
}
|
|
|
|
}
|