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feat(consensus): add active participant diagnostics

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Carry a signed observedParticipantsHash in ExtendedPosition and log a local canonical bitmap over the active validator view for degraded-round debugging. The field is diagnostic only and does not affect proposal equality or quorum thresholds.
This commit is contained in:
Nicholas Dudfield
2026-05-21 09:56:51 +08:00
parent 0a77dbf68e
commit 03e0bb5fc3
7 changed files with 274 additions and 8 deletions
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43
src/test/consensus/ExtendedPosition_test.cpp
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@@ -66,6 +66,7 @@ class ExtendedPosition_test : public beast::unit_test::suite
BEAST_EXPECT(!deserialized->entropySetHash);
BEAST_EXPECT(!deserialized->exportSigSetHash);
BEAST_EXPECT(!deserialized->exportSignaturesHash);
BEAST_EXPECT(!deserialized->observedParticipantsHash);
}
// Position with commitment
@@ -94,6 +95,34 @@ class ExtendedPosition_test : public beast::unit_test::suite
BEAST_EXPECT(!deserialized->myReveal);
}
// Position with diagnostic participant hash only
{
auto const txSet = makeHash("txset-participants");
auto const participants = makeHash("participants");
ExtendedPosition pos{txSet};
pos.observedParticipantsHash = participants;
Serializer s;
pos.add(s);
// 32 (txSet) + 1 (flags) + 32 (participant hash) = 65
BEAST_EXPECT(s.getDataLength() == 65);
SerialIter sit(s.slice());
auto deserialized =
ExtendedPosition::fromSerialIter(sit, s.getDataLength());
BEAST_EXPECT(deserialized.has_value());
if (!deserialized)
return;
BEAST_EXPECT(deserialized->txSetHash == txSet);
BEAST_EXPECT(
deserialized->observedParticipantsHash == participants);
BEAST_EXPECT(!deserialized->myCommitment);
BEAST_EXPECT(!deserialized->myReveal);
}
// Position with all fields
{
auto const txSet = makeHash("txset-c");
@@ -101,6 +130,7 @@ class ExtendedPosition_test : public beast::unit_test::suite
auto const entropySet = makeHash("entropyset-c");
auto const exportSigSet = makeHash("exportsigset-c");
auto const exportSigs = makeHash("exportsigs-c");
auto const participants = makeHash("participants-c");
auto const commit = makeHash("commit-c");
auto const reveal = makeHash("reveal-c");
@@ -109,14 +139,15 @@ class ExtendedPosition_test : public beast::unit_test::suite
pos.entropySetHash = entropySet;
pos.exportSigSetHash = exportSigSet;
pos.exportSignaturesHash = exportSigs;
pos.observedParticipantsHash = participants;
pos.myCommitment = commit;
pos.myReveal = reveal;
Serializer s;
pos.add(s);
// 32 + 1 + 6*32 = 225
BEAST_EXPECT(s.getDataLength() == 225);
// 32 + 1 + 7*32 = 257
BEAST_EXPECT(s.getDataLength() == 257);
SerialIter sit(s.slice());
auto deserialized =
@@ -130,6 +161,8 @@ class ExtendedPosition_test : public beast::unit_test::suite
BEAST_EXPECT(deserialized->entropySetHash == entropySet);
BEAST_EXPECT(deserialized->exportSigSetHash == exportSigSet);
BEAST_EXPECT(deserialized->exportSignaturesHash == exportSigs);
BEAST_EXPECT(
deserialized->observedParticipantsHash == participants);
BEAST_EXPECT(deserialized->myCommitment == commit);
BEAST_EXPECT(deserialized->myReveal == reveal);
}
@@ -359,7 +392,7 @@ class ExtendedPosition_test : public beast::unit_test::suite
auto const txSet = makeHash("txset-unkflags");
Serializer s;
s.addBitString(txSet);
s.add8(0x41); // bit 6 is unknown, bit 0 = commitSetHash
s.add8(0x81); // bit 7 is unknown, bit 0 = commitSetHash
s.addBitString(makeHash("commitset-unkflags"));
SerialIter sit(s.slice());
auto result =
@@ -433,6 +466,10 @@ class ExtendedPosition_test : public beast::unit_test::suite
b.exportSignaturesHash = makeHash("export-sigs-eq");
BEAST_EXPECT(a == b);
// Same txSetHash, different participant diagnostics -> still equal
b.observedParticipantsHash = makeHash("participants-eq");
BEAST_EXPECT(a == b);
// Different txSetHash -> not equal
ExtendedPosition c{txSet2};
BEAST_EXPECT(a != c);