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Fix skip list starting from protocol 22 #4470

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Fix skip list starting from protocol 22 #4470

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df8f2f5
Fix skip list starting from protocol 22
sisuresh Sep 17, 2024
df916c8
Update 50 bucket to 500
sisuresh Sep 25, 2024
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11 changes: 10 additions & 1 deletion src/bucket/BucketManagerImpl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1120,7 +1120,16 @@ BucketManagerImpl::calculateSkipValues(LedgerHeader& currentHeader)
}
currentHeader.skipList[1] = currentHeader.skipList[0];
}
currentHeader.skipList[0] = currentHeader.bucketListHash;

if (protocolVersionStartsFrom(currentHeader.ledgerVersion,
ProtocolVersion::V_22))
{
currentHeader.skipList[0] = currentHeader.previousLedgerHash;
}
else
{
currentHeader.skipList[0] = currentHeader.bucketListHash;
}
}
}

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139 changes: 74 additions & 65 deletions src/bucket/test/BucketManagerTests.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -119,71 +119,80 @@ TEST_CASE("skip list", "[bucket][bucketmanager]")
Hash h6 = HashUtils::pseudoRandomForTesting();
Hash h7 = HashUtils::pseudoRandomForTesting();

// up first entry
LedgerHeader header;
header.ledgerSeq = 5;
header.bucketListHash = h1;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h0);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_1;
header.bucketListHash = h2;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h2);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_1 * 2;
header.bucketListHash = h3;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h3);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_1 * 2 + 1;
header.bucketListHash = h2;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h3);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_2;
header.bucketListHash = h4;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h4);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_2 + SKIP_1;
header.bucketListHash = h5;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h5);
REQUIRE(header.skipList[1] == h4);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_3 + SKIP_2;
header.bucketListHash = h6;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h6);
REQUIRE(header.skipList[1] == h4);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_3 + SKIP_2 + SKIP_1;
header.bucketListHash = h7;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h7);
REQUIRE(header.skipList[1] == h6);
REQUIRE(header.skipList[2] == h4);
REQUIRE(header.skipList[3] == h0);
for (size_t i = 21; i <= 22; ++i)
{
// up first entry
LedgerHeader header;
header.ledgerSeq = 5;
header.ledgerVersion = i;
auto& hashFieldToUse =
protocolVersionIsBefore(header.ledgerVersion,
ProtocolVersion::V_22)
? header.bucketListHash
: header.previousLedgerHash;

calculateSkipValues(header);
REQUIRE(header.skipList[0] == h0);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_1;
hashFieldToUse = h2;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h2);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_1 * 2;
hashFieldToUse = h3;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h3);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_1 * 2 + 1;
hashFieldToUse = h2;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h3);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_2;
hashFieldToUse = h4;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h4);
REQUIRE(header.skipList[1] == h0);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_2 + SKIP_1;
hashFieldToUse = h5;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h5);
REQUIRE(header.skipList[1] == h4);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_3 + SKIP_2;
hashFieldToUse = h6;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h6);
REQUIRE(header.skipList[1] == h4);
REQUIRE(header.skipList[2] == h0);
REQUIRE(header.skipList[3] == h0);

header.ledgerSeq = SKIP_3 + SKIP_2 + SKIP_1;
hashFieldToUse = h7;
calculateSkipValues(header);
REQUIRE(header.skipList[0] == h7);
REQUIRE(header.skipList[1] == h6);
REQUIRE(header.skipList[2] == h4);
REQUIRE(header.skipList[3] == h0);
}
}
};

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