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-rw-r--r--src/validation.cpp111
1 files changed, 71 insertions, 40 deletions
diff --git a/src/validation.cpp b/src/validation.cpp
index de65839eef..eaefa95411 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -186,8 +186,11 @@ enum FlushStateMode {
};
// See definition for documentation
-bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode, int nManualPruneHeight=0);
-void FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeight);
+static bool FlushStateToDisk(const CChainParams& chainParams, CValidationState &state, FlushStateMode mode, int nManualPruneHeight=0);
+static void FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeight);
+static void FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPruneAfterHeight);
+static bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks = NULL);
+static FILE* OpenUndoFile(const CDiskBlockPos &pos, bool fReadOnly = false);
bool CheckFinalTx(const CTransaction &tx, int flags)
{
@@ -309,7 +312,7 @@ bool CheckSequenceLocks(const CTransaction &tx, int flags, LockPoints* lp, bool
return EvaluateSequenceLocks(index, lockPair);
}
-void LimitMempoolSize(CTxMemPool& pool, size_t limit, unsigned long age) {
+static void LimitMempoolSize(CTxMemPool& pool, size_t limit, unsigned long age) {
int expired = pool.Expire(GetTime() - age);
if (expired != 0) {
LogPrint(BCLog::MEMPOOL, "Expired %i transactions from the memory pool\n", expired);
@@ -392,7 +395,7 @@ void UpdateMempoolForReorg(DisconnectedBlockTransactions &disconnectpool, bool f
LimitMempoolSize(mempool, GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000, GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60);
}
-bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const CTransactionRef& ptx, bool fLimitFree,
+static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool& pool, CValidationState& state, const CTransactionRef& ptx, bool fLimitFree,
bool* pfMissingInputs, int64_t nAcceptTime, std::list<CTransactionRef>* plTxnReplaced,
bool fOverrideMempoolLimit, const CAmount& nAbsurdFee, std::vector<COutPoint>& coins_to_uncache)
{
@@ -410,7 +413,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
return state.DoS(100, false, REJECT_INVALID, "coinbase");
// Reject transactions with witness before segregated witness activates (override with -prematurewitness)
- bool witnessEnabled = IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus());
+ bool witnessEnabled = IsWitnessEnabled(chainActive.Tip(), chainparams.GetConsensus());
if (!GetBoolArg("-prematurewitness",false) && tx.HasWitness() && !witnessEnabled) {
return state.DoS(0, false, REJECT_NONSTANDARD, "no-witness-yet", true);
}
@@ -739,7 +742,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
}
unsigned int scriptVerifyFlags = STANDARD_SCRIPT_VERIFY_FLAGS;
- if (!Params().RequireStandard()) {
+ if (!chainparams.RequireStandard()) {
scriptVerifyFlags = GetArg("-promiscuousmempoolflags", scriptVerifyFlags);
}
@@ -809,19 +812,20 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
return true;
}
-bool AcceptToMemoryPoolWithTime(CTxMemPool& pool, CValidationState &state, const CTransactionRef &tx, bool fLimitFree,
+/** (try to) add transaction to memory pool with a specified acceptance time **/
+static bool AcceptToMemoryPoolWithTime(const CChainParams& chainparams, CTxMemPool& pool, CValidationState &state, const CTransactionRef &tx, bool fLimitFree,
bool* pfMissingInputs, int64_t nAcceptTime, std::list<CTransactionRef>* plTxnReplaced,
bool fOverrideMempoolLimit, const CAmount nAbsurdFee)
{
std::vector<COutPoint> coins_to_uncache;
- bool res = AcceptToMemoryPoolWorker(pool, state, tx, fLimitFree, pfMissingInputs, nAcceptTime, plTxnReplaced, fOverrideMempoolLimit, nAbsurdFee, coins_to_uncache);
+ bool res = AcceptToMemoryPoolWorker(chainparams, pool, state, tx, fLimitFree, pfMissingInputs, nAcceptTime, plTxnReplaced, fOverrideMempoolLimit, nAbsurdFee, coins_to_uncache);
if (!res) {
BOOST_FOREACH(const COutPoint& hashTx, coins_to_uncache)
pcoinsTip->Uncache(hashTx);
}
// After we've (potentially) uncached entries, ensure our coins cache is still within its size limits
CValidationState stateDummy;
- FlushStateToDisk(stateDummy, FLUSH_STATE_PERIODIC);
+ FlushStateToDisk(chainparams, stateDummy, FLUSH_STATE_PERIODIC);
return res;
}
@@ -829,7 +833,8 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
bool* pfMissingInputs, std::list<CTransactionRef>* plTxnReplaced,
bool fOverrideMempoolLimit, const CAmount nAbsurdFee)
{
- return AcceptToMemoryPoolWithTime(pool, state, tx, fLimitFree, pfMissingInputs, GetTime(), plTxnReplaced, fOverrideMempoolLimit, nAbsurdFee);
+ const CChainParams& chainparams = Params();
+ return AcceptToMemoryPoolWithTime(chainparams, pool, state, tx, fLimitFree, pfMissingInputs, GetTime(), plTxnReplaced, fOverrideMempoolLimit, nAbsurdFee);
}
/** Return transaction in txOut, and if it was found inside a block, its hash is placed in hashBlock */
@@ -898,7 +903,7 @@ bool GetTransaction(const uint256 &hash, CTransactionRef &txOut, const Consensus
// CBlock and CBlockIndex
//
-bool WriteBlockToDisk(const CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart)
+static bool WriteBlockToDisk(const CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart)
{
// Open history file to append
CAutoFile fileout(OpenBlockFile(pos), SER_DISK, CLIENT_VERSION);
@@ -1011,7 +1016,7 @@ static void AlertNotify(const std::string& strMessage)
boost::thread t(runCommand, strCmd); // thread runs free
}
-void CheckForkWarningConditions()
+static void CheckForkWarningConditions()
{
AssertLockHeld(cs_main);
// Before we get past initial download, we cannot reliably alert about forks
@@ -1052,7 +1057,7 @@ void CheckForkWarningConditions()
}
}
-void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip)
+static void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip)
{
AssertLockHeld(cs_main);
// If we are on a fork that is sufficiently large, set a warning flag
@@ -1144,7 +1149,12 @@ int GetSpendHeight(const CCoinsViewCache& inputs)
return pindexPrev->nHeight + 1;
}
-bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks)
+/**
+ * Check whether all inputs of this transaction are valid (no double spends, scripts & sigs, amounts)
+ * This does not modify the UTXO set. If pvChecks is not NULL, script checks are pushed onto it
+ * instead of being performed inline.
+ */
+static bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks)
{
if (!tx.IsCoinBase())
{
@@ -1411,7 +1421,7 @@ void static FlushBlockFile(bool fFinalize = false)
}
}
-bool FindUndoPos(CValidationState &state, int nFile, CDiskBlockPos &pos, unsigned int nAddSize);
+static bool FindUndoPos(CValidationState &state, int nFile, CDiskBlockPos &pos, unsigned int nAddSize);
static CCheckQueue<CScriptCheck> scriptcheckqueue(128);
@@ -1730,9 +1740,8 @@ static bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockInd
* if they're too large, if it's been a while since the last write,
* or always and in all cases if we're in prune mode and are deleting files.
*/
-bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode, int nManualPruneHeight) {
+bool static FlushStateToDisk(const CChainParams& chainparams, CValidationState &state, FlushStateMode mode, int nManualPruneHeight) {
int64_t nMempoolUsage = mempool.DynamicMemoryUsage();
- const CChainParams& chainparams = Params();
LOCK2(cs_main, cs_LastBlockFile);
static int64_t nLastWrite = 0;
static int64_t nLastFlush = 0;
@@ -1836,13 +1845,15 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode, int n
void FlushStateToDisk() {
CValidationState state;
- FlushStateToDisk(state, FLUSH_STATE_ALWAYS);
+ const CChainParams& chainparams = Params();
+ FlushStateToDisk(chainparams, state, FLUSH_STATE_ALWAYS);
}
void PruneAndFlush() {
CValidationState state;
fCheckForPruning = true;
- FlushStateToDisk(state, FLUSH_STATE_NONE);
+ const CChainParams& chainparams = Params();
+ FlushStateToDisk(chainparams, state, FLUSH_STATE_NONE);
}
static void DoWarning(const std::string& strWarning)
@@ -1939,7 +1950,7 @@ bool static DisconnectTip(CValidationState& state, const CChainParams& chainpara
}
LogPrint(BCLog::BENCH, "- Disconnect block: %.2fms\n", (GetTimeMicros() - nStart) * 0.001);
// Write the chain state to disk, if necessary.
- if (!FlushStateToDisk(state, FLUSH_STATE_IF_NEEDED))
+ if (!FlushStateToDisk(chainparams, state, FLUSH_STATE_IF_NEEDED))
return false;
if (disconnectpool) {
@@ -2076,7 +2087,7 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
int64_t nTime4 = GetTimeMicros(); nTimeFlush += nTime4 - nTime3;
LogPrint(BCLog::BENCH, " - Flush: %.2fms [%.2fs]\n", (nTime4 - nTime3) * 0.001, nTimeFlush * 0.000001);
// Write the chain state to disk, if necessary.
- if (!FlushStateToDisk(state, FLUSH_STATE_IF_NEEDED))
+ if (!FlushStateToDisk(chainparams, state, FLUSH_STATE_IF_NEEDED))
return false;
int64_t nTime5 = GetTimeMicros(); nTimeChainState += nTime5 - nTime4;
LogPrint(BCLog::BENCH, " - Writing chainstate: %.2fms [%.2fs]\n", (nTime5 - nTime4) * 0.001, nTimeChainState * 0.000001);
@@ -2336,7 +2347,7 @@ bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams,
CheckBlockIndex(chainparams.GetConsensus());
// Write changes periodically to disk, after relay.
- if (!FlushStateToDisk(state, FLUSH_STATE_PERIODIC)) {
+ if (!FlushStateToDisk(chainparams, state, FLUSH_STATE_PERIODIC)) {
return false;
}
@@ -2453,7 +2464,7 @@ bool ResetBlockFailureFlags(CBlockIndex *pindex) {
return true;
}
-CBlockIndex* AddToBlockIndex(const CBlockHeader& block)
+static CBlockIndex* AddToBlockIndex(const CBlockHeader& block)
{
// Check for duplicate
uint256 hash = block.GetHash();
@@ -2537,7 +2548,7 @@ static bool ReceivedBlockTransactions(const CBlock &block, CValidationState& sta
return true;
}
-bool FindBlockPos(CValidationState &state, CDiskBlockPos &pos, unsigned int nAddSize, unsigned int nHeight, uint64_t nTime, bool fKnown = false)
+static bool FindBlockPos(CValidationState &state, CDiskBlockPos &pos, unsigned int nAddSize, unsigned int nHeight, uint64_t nTime, bool fKnown = false)
{
LOCK(cs_LastBlockFile);
@@ -2594,7 +2605,7 @@ bool FindBlockPos(CValidationState &state, CDiskBlockPos &pos, unsigned int nAdd
return true;
}
-bool FindUndoPos(CValidationState &state, int nFile, CDiskBlockPos &pos, unsigned int nAddSize)
+static bool FindUndoPos(CValidationState &state, int nFile, CDiskBlockPos &pos, unsigned int nAddSize)
{
pos.nFile = nFile;
@@ -2625,7 +2636,7 @@ bool FindUndoPos(CValidationState &state, int nFile, CDiskBlockPos &pos, unsigne
return true;
}
-bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, bool fCheckPOW)
+static bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, bool fCheckPOW = true)
{
// Check proof of work matches claimed amount
if (fCheckPOW && !CheckProofOfWork(block.GetHash(), block.nBits, consensusParams))
@@ -2775,7 +2786,10 @@ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBloc
return commitment;
}
-bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)
+/** Context-dependent validity checks.
+ * By "context", we mean only the previous block headers, but not the UTXO
+ * set; UTXO-related validity checks are done in ConnectBlock(). */
+static bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)
{
assert(pindexPrev != NULL);
const int nHeight = pindexPrev->nHeight + 1;
@@ -2802,7 +2816,7 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
return true;
}
-bool ContextualCheckBlock(const CBlock& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev)
+static bool ContextualCheckBlock(const CBlock& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev)
{
const int nHeight = pindexPrev == NULL ? 0 : pindexPrev->nHeight + 1;
@@ -3026,7 +3040,7 @@ static bool AcceptBlock(const std::shared_ptr<const CBlock>& pblock, CValidation
}
if (fCheckForPruning)
- FlushStateToDisk(state, FLUSH_STATE_NONE); // we just allocated more disk space for block files
+ FlushStateToDisk(chainparams, state, FLUSH_STATE_NONE); // we just allocated more disk space for block files
return true;
}
@@ -3094,7 +3108,7 @@ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams,
*/
/* Calculate the amount of disk space the block & undo files currently use */
-uint64_t CalculateCurrentUsage()
+static uint64_t CalculateCurrentUsage()
{
uint64_t retval = 0;
BOOST_FOREACH(const CBlockFileInfo &file, vinfoBlockFile) {
@@ -3147,7 +3161,7 @@ void UnlinkPrunedFiles(const std::set<int>& setFilesToPrune)
}
/* Calculate the block/rev files to delete based on height specified by user with RPC command pruneblockchain */
-void FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeight)
+static void FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeight)
{
assert(fPruneMode && nManualPruneHeight > 0);
@@ -3172,11 +3186,26 @@ void FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeig
void PruneBlockFilesManual(int nManualPruneHeight)
{
CValidationState state;
- FlushStateToDisk(state, FLUSH_STATE_NONE, nManualPruneHeight);
+ const CChainParams& chainparams = Params();
+ FlushStateToDisk(chainparams, state, FLUSH_STATE_NONE, nManualPruneHeight);
}
-/* Calculate the block/rev files that should be deleted to remain under target*/
-void FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPruneAfterHeight)
+/**
+ * Prune block and undo files (blk???.dat and undo???.dat) so that the disk space used is less than a user-defined target.
+ * The user sets the target (in MB) on the command line or in config file. This will be run on startup and whenever new
+ * space is allocated in a block or undo file, staying below the target. Changing back to unpruned requires a reindex
+ * (which in this case means the blockchain must be re-downloaded.)
+ *
+ * Pruning functions are called from FlushStateToDisk when the global fCheckForPruning flag has been set.
+ * Block and undo files are deleted in lock-step (when blk00003.dat is deleted, so is rev00003.dat.)
+ * Pruning cannot take place until the longest chain is at least a certain length (100000 on mainnet, 1000 on testnet, 1000 on regtest).
+ * Pruning will never delete a block within a defined distance (currently 288) from the active chain's tip.
+ * The block index is updated by unsetting HAVE_DATA and HAVE_UNDO for any blocks that were stored in the deleted files.
+ * A db flag records the fact that at least some block files have been pruned.
+ *
+ * @param[out] setFilesToPrune The set of file indices that can be unlinked will be returned
+ */
+static void FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPruneAfterHeight)
{
LOCK2(cs_main, cs_LastBlockFile);
if (chainActive.Tip() == NULL || nPruneTarget == 0) {
@@ -3234,7 +3263,7 @@ bool CheckDiskSpace(uint64_t nAdditionalBytes)
return true;
}
-FILE* OpenDiskFile(const CDiskBlockPos &pos, const char *prefix, bool fReadOnly)
+static FILE* OpenDiskFile(const CDiskBlockPos &pos, const char *prefix, bool fReadOnly)
{
if (pos.IsNull())
return NULL;
@@ -3261,7 +3290,8 @@ FILE* OpenBlockFile(const CDiskBlockPos &pos, bool fReadOnly) {
return OpenDiskFile(pos, "blk", fReadOnly);
}
-FILE* OpenUndoFile(const CDiskBlockPos &pos, bool fReadOnly) {
+/** Open an undo file (rev?????.dat) */
+static FILE* OpenUndoFile(const CDiskBlockPos &pos, bool fReadOnly) {
return OpenDiskFile(pos, "rev", fReadOnly);
}
@@ -3533,7 +3563,7 @@ bool RewindBlockIndex(const CChainParams& params)
return error("RewindBlockIndex: unable to disconnect block at height %i", pindex->nHeight);
}
// Occasionally flush state to disk.
- if (!FlushStateToDisk(state, FLUSH_STATE_PERIODIC))
+ if (!FlushStateToDisk(params, state, FLUSH_STATE_PERIODIC))
return false;
}
@@ -3582,7 +3612,7 @@ bool RewindBlockIndex(const CChainParams& params)
CheckBlockIndex(params.GetConsensus());
- if (!FlushStateToDisk(state, FLUSH_STATE_ALWAYS)) {
+ if (!FlushStateToDisk(params, state, FLUSH_STATE_ALWAYS)) {
return false;
}
@@ -3655,7 +3685,7 @@ bool InitBlockIndex(const CChainParams& chainparams)
if (!ReceivedBlockTransactions(block, state, pindex, blockPos, chainparams.GetConsensus()))
return error("LoadBlockIndex(): genesis block not accepted");
// Force a chainstate write so that when we VerifyDB in a moment, it doesn't check stale data
- return FlushStateToDisk(state, FLUSH_STATE_ALWAYS);
+ return FlushStateToDisk(chainparams, state, FLUSH_STATE_ALWAYS);
} catch (const std::runtime_error& e) {
return error("LoadBlockIndex(): failed to initialize block database: %s", e.what());
}
@@ -3997,6 +4027,7 @@ static const uint64_t MEMPOOL_DUMP_VERSION = 1;
bool LoadMempool(void)
{
+ const CChainParams& chainparams = Params();
int64_t nExpiryTimeout = GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60;
FILE* filestr = fsbridge::fopen(GetDataDir() / "mempool.dat", "rb");
CAutoFile file(filestr, SER_DISK, CLIENT_VERSION);
@@ -4033,7 +4064,7 @@ bool LoadMempool(void)
CValidationState state;
if (nTime + nExpiryTimeout > nNow) {
LOCK(cs_main);
- AcceptToMemoryPoolWithTime(mempool, state, tx, true, NULL, nTime);
+ AcceptToMemoryPoolWithTime(chainparams, mempool, state, tx, true, NULL, nTime, NULL, false, 0);
if (state.IsValid()) {
++count;
} else {
generated by cgit v1.2.3 (git 2.26.2) at 2024-10-30 11:54:35 +0000