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TestBlockValidity function for CBlock proposals (used by CreateNewBlock)

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This commit is contained in:
Luke Dashjr 2014-10-20 02:10:03 +00:00
parent 4ea1be7fb8
commit df08a626e0
3 changed files with 31 additions and 17 deletions
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26
src/main.cpp
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@ -1593,7 +1593,7 @@ static int64_t nTimeIndex = 0;
static int64_t nTimeCallbacks = 0;
static int64_t nTimeTotal = 0;
bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& view, bool fJustCheck)
bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& view, bool fJustCheck)
{
AssertLockHeld(cs_main);
// Check it again in case a previous version let a bad block in
@ -2573,6 +2573,30 @@ bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDis
return true;
}
bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex * const pindexPrev, bool fCheckPOW, bool fCheckMerkleRoot)
{
AssertLockHeld(cs_main);
assert(pindexPrev == chainActive.Tip());
CCoinsViewCache viewNew(pcoinsTip);
CBlockIndex indexDummy(block);
indexDummy.pprev = pindexPrev;
indexDummy.nHeight = pindexPrev->nHeight + 1;
// NOTE: CheckBlockHeader is called by CheckBlock
if (!ContextualCheckBlockHeader(block, state, pindexPrev))
return false;
if (!CheckBlock(block, state, fCheckPOW, fCheckMerkleRoot))
return false;
if (!ContextualCheckBlock(block, state, pindexPrev))
return false;
if (!ConnectBlock(block, state, &indexDummy, viewNew, true))
return false;
assert(state.IsValid());
return true;
}

5
src/main.h
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@ -457,7 +457,7 @@ bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex);
bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& coins, bool* pfClean = NULL);
// Apply the effects of this block (with given index) on the UTXO set represented by coins
bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& coins, bool fJustCheck = false);
bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& coins, bool fJustCheck = false);
// Context-independent validity checks
bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, bool fCheckPOW = true);
@ -467,6 +467,9 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW = t
bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, CBlockIndex *pindexPrev);
bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIndex *pindexPrev);
// Check a block is completely valid from start to finish (only works on top of our current best block, with cs_main held)
bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex *pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true);
// Store block on disk
// if dbp is provided, the file is known to already reside on disk
bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex **pindex, CDiskBlockPos* dbp = NULL);

17
src/miner.cpp
View File

@ -321,22 +321,9 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
pblock->nNonce = 0;
pblocktemplate->vTxSigOps[0] = GetLegacySigOpCount(pblock->vtx[0]);
CBlockIndex indexDummy(*pblock);
indexDummy.pprev = pindexPrev;
indexDummy.nHeight = pindexPrev->nHeight + 1;
CCoinsViewCache viewNew(pcoinsTip);
CValidationState state;
// NOTE: CheckBlockHeader is called by CheckBlock
if (!ContextualCheckBlockHeader(*pblock, state, pindexPrev))
throw std::runtime_error("CreateNewBlock() : ContextualCheckBlockHeader failed");
if (!CheckBlock(*pblock, state, false, false))
throw std::runtime_error("CreateNewBlock() : CheckBlock failed");
if (!ContextualCheckBlock(*pblock, state, pindexPrev))
throw std::runtime_error("CreateNewBlock() : ContextualCheckBlock failed");
if (!ConnectBlock(*pblock, state, &indexDummy, viewNew, true))
throw std::runtime_error("CreateNewBlock() : ConnectBlock failed");
if (!state.IsValid())
throw std::runtime_error("CreateNewBlock() : State is not valid");
if (!TestBlockValidity(state, *pblock, pindexPrev, false, false))
throw std::runtime_error("CreateNewBlock() : TestBlockValidity failed");
}
return pblocktemplate.release();