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Fix the need to call setIndex after creating a new SLE.

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Finish the ledger skip list code. (Note that this will cause ledger divergence if old code talks to new code.)
This commit is contained in:
JoelKatz
2012-11-08 04:36:15 -08:00
parent f4d951cd67
commit 644aa28e5b
8 changed files with 61 additions and 11 deletions
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57
src/cpp/ripple/Ledger.cpp
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@@ -756,8 +756,7 @@ SLE::pointer Ledger::getASNode(LedgerStateParms& parms, const uint256& nodeID,
}
parms = parms | lepCREATED | lepOKAY;
SLE::pointer sle=boost::make_shared<SLE>(let);
sle->setIndex(nodeID);
SLE::pointer sle=boost::make_shared<SLE>(let, nodeID);
return sle;
}
@@ -890,7 +889,7 @@ uint256 Ledger::getAccountRootIndex(const uint160& uAccountID)
uint256 Ledger::getLedgerHashIndex()
{ // get the index of the node that holds the last 256 ledgers
Serializer s(2);
s.add16(spaceHashes);
s.add16(spaceSkipList);
return s.getSHA512Half();
}
@@ -898,7 +897,7 @@ uint256 Ledger::getLedgerHashIndex(uint32 desiredLedgerIndex)
{ // get the index of the node that holds the set of 256 ledgers that includes this ledger's hash
// (or the first ledger after it if it's not a multiple of 256)
Serializer s(6);
s.add16(spaceHashes);
s.add16(spaceSkipList);
s.add32(desiredLedgerIndex >> 16);
return s.getSHA512Half();
}
@@ -1063,6 +1062,56 @@ bool Ledger::assertSane()
return false;
}
void Ledger::updateSkipList()
{ // update the skip list with the information from our previous ledger
if (mLedgerSeq == 0) // genesis ledger has no previous ledger
return;
uint32 prevIndex = mLedgerSeq - 1;
if ((prevIndex & 0xff) == 0)
{ // update record of every 256th ledger
uint256 hash = getLedgerHashIndex(prevIndex);
SLE::pointer skipList = getSLE(hash);
std::vector<uint256> hashes;
if (!skipList)
skipList = boost::make_shared<SLE>(ltLEDGER_HASHES, hash);
else
hashes = skipList->getFieldV256(sfHashes).peekValue();
assert(hashes.size() <= 256);
hashes.push_back(mParentHash);
skipList->setFieldV256(sfHashes, STVector256(hashes));
if (writeBack(lepCREATE, skipList) == lepERROR)
{
assert(false);
}
}
// update record of past 256 ledger
uint256 hash = getLedgerHashIndex();
SLE::pointer skipList = getSLE(hash);
std::vector<uint256> hashes;
if (!skipList)
skipList = boost::make_shared<SLE>(ltLEDGER_HASHES, hash);
else
hashes = skipList->getFieldV256(sfHashes).peekValue();
assert(hashes.size() <= 256);
if (hashes.size() == 256)
hashes.erase(hashes.begin());
hashes.push_back(mParentHash);
skipList->setFieldV256(sfHashes, STVector256(hashes));
if (writeBack(lepCREATE, skipList) == lepERROR)
{
assert(false);
}
}
int Ledger::sPendingSaves = 0;
boost::recursive_mutex Ledger::sPendingSaveLock;